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AC_REQUIRE([AM_NLS]) ifelse(gt_included_intl, yes, [ BUILD_INCLUDED_LIBINTL=no USE_INCLUDED_LIBINTL=no ]) LIBINTL= LTLIBINTL= POSUB= dnl Add a version number to the cache macros. case " $gt_needs " in *" need-formatstring-macros "*) gt_api_version=3 ;; *" need-ngettext "*) gt_api_version=2 ;; *) gt_api_version=1 ;; esac gt_func_gnugettext_libc="gt_cv_func_gnugettext${gt_api_version}_libc" gt_func_gnugettext_libintl="gt_cv_func_gnugettext${gt_api_version}_libintl" dnl If we use NLS figure out what method if test "$USE_NLS" = "yes"; then gt_use_preinstalled_gnugettext=no ifelse(gt_included_intl, yes, [ AC_MSG_CHECKING([whether included gettext is requested]) AC_ARG_WITH([included-gettext], [ --with-included-gettext use the GNU gettext library included here], nls_cv_force_use_gnu_gettext=$withval, nls_cv_force_use_gnu_gettext=no) AC_MSG_RESULT([$nls_cv_force_use_gnu_gettext]) nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext" if test "$nls_cv_force_use_gnu_gettext" != "yes"; then ]) dnl User does not insist on using GNU NLS library. Figure out what dnl to use. If GNU gettext is available we use this. Else we have dnl to fall back to GNU NLS library. if test $gt_api_version -ge 3; then gt_revision_test_code=' #ifndef __GNU_GETTEXT_SUPPORTED_REVISION #define __GNU_GETTEXT_SUPPORTED_REVISION(major) ((major) == 0 ? 0 : -1) #endif changequote(,)dnl typedef int array [2 * (__GNU_GETTEXT_SUPPORTED_REVISION(0) >= 1) - 1]; changequote([,])dnl ' else gt_revision_test_code= fi if test $gt_api_version -ge 2; then gt_expression_test_code=' + * ngettext ("", "", 0)' else gt_expression_test_code= fi AC_CACHE_CHECK([for GNU gettext in libc], [$gt_func_gnugettext_libc], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[ #include #ifndef __GNU_GETTEXT_SUPPORTED_REVISION extern int _nl_msg_cat_cntr; extern int *_nl_domain_bindings; #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_domain_bindings) #else #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0 #endif $gt_revision_test_code ]], [[ bindtextdomain ("", ""); return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION ]])], [eval "$gt_func_gnugettext_libc=yes"], [eval "$gt_func_gnugettext_libc=no"])]) if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" != "yes"; }; then dnl Sometimes libintl requires libiconv, so first search for libiconv. ifelse(gt_included_intl, yes, , [ AM_ICONV_LINK ]) dnl Search for libintl and define LIBINTL, LTLIBINTL and INCINTL dnl accordingly. Don't use AC_LIB_LINKFLAGS_BODY([intl],[iconv]) dnl because that would add "-liconv" to LIBINTL and LTLIBINTL dnl even if libiconv doesn't exist. AC_LIB_LINKFLAGS_BODY([intl]) AC_CACHE_CHECK([for GNU gettext in libintl], [$gt_func_gnugettext_libintl], [gt_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS $INCINTL" gt_save_LIBS="$LIBS" LIBS="$LIBS $LIBINTL" dnl Now see whether libintl exists and does not depend on libiconv. AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[ #include #ifndef __GNU_GETTEXT_SUPPORTED_REVISION extern int _nl_msg_cat_cntr; extern #ifdef __cplusplus "C" #endif const char *_nl_expand_alias (const char *); #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias ("")) #else #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0 #endif $gt_revision_test_code ]], [[ bindtextdomain ("", ""); return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION ]])], [eval "$gt_func_gnugettext_libintl=yes"], [eval "$gt_func_gnugettext_libintl=no"]) dnl Now see whether libintl exists and depends on libiconv. if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" != yes; } && test -n "$LIBICONV"; then LIBS="$LIBS $LIBICONV" AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[ #include #ifndef __GNU_GETTEXT_SUPPORTED_REVISION extern int _nl_msg_cat_cntr; extern #ifdef __cplusplus "C" #endif const char *_nl_expand_alias (const char *); #define __GNU_GETTEXT_SYMBOL_EXPRESSION (_nl_msg_cat_cntr + *_nl_expand_alias ("")) #else #define __GNU_GETTEXT_SYMBOL_EXPRESSION 0 #endif $gt_revision_test_code ]], [[ bindtextdomain ("", ""); return * gettext ("")$gt_expression_test_code + __GNU_GETTEXT_SYMBOL_EXPRESSION ]])], [LIBINTL="$LIBINTL $LIBICONV" LTLIBINTL="$LTLIBINTL $LTLIBICONV" eval "$gt_func_gnugettext_libintl=yes" ]) fi CPPFLAGS="$gt_save_CPPFLAGS" LIBS="$gt_save_LIBS"]) fi dnl If an already present or preinstalled GNU gettext() is found, dnl use it. But if this macro is used in GNU gettext, and GNU dnl gettext is already preinstalled in libintl, we update this dnl libintl. (Cf. the install rule in intl/Makefile.in.) if { eval "gt_val=\$$gt_func_gnugettext_libc"; test "$gt_val" = "yes"; } \ || { { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; } \ && test "$PACKAGE" != gettext-runtime \ && test "$PACKAGE" != gettext-tools; }; then gt_use_preinstalled_gnugettext=yes else dnl Reset the values set by searching for libintl. LIBINTL= LTLIBINTL= INCINTL= fi ifelse(gt_included_intl, yes, [ if test "$gt_use_preinstalled_gnugettext" != "yes"; then dnl GNU gettext is not found in the C library. dnl Fall back on included GNU gettext library. nls_cv_use_gnu_gettext=yes fi fi if test "$nls_cv_use_gnu_gettext" = "yes"; then dnl Mark actions used to generate GNU NLS library. BUILD_INCLUDED_LIBINTL=yes USE_INCLUDED_LIBINTL=yes LIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.la $LIBICONV $LIBTHREAD" LTLIBINTL="ifelse([$3],[],\${top_builddir}/intl,[$3])/libintl.la $LTLIBICONV $LTLIBTHREAD" LIBS=`echo " $LIBS " | sed -e 's/ -lintl / /' -e 's/^ //' -e 's/ $//'` fi CATOBJEXT= if test "$gt_use_preinstalled_gnugettext" = "yes" \ || test "$nls_cv_use_gnu_gettext" = "yes"; then dnl Mark actions to use GNU gettext tools. CATOBJEXT=.gmo fi ]) if test -n "$INTL_MACOSX_LIBS"; then if test "$gt_use_preinstalled_gnugettext" = "yes" \ || test "$nls_cv_use_gnu_gettext" = "yes"; then dnl Some extra flags are needed during linking. LIBINTL="$LIBINTL $INTL_MACOSX_LIBS" LTLIBINTL="$LTLIBINTL $INTL_MACOSX_LIBS" fi fi if test "$gt_use_preinstalled_gnugettext" = "yes" \ || test "$nls_cv_use_gnu_gettext" = "yes"; then AC_DEFINE([ENABLE_NLS], [1], [Define to 1 if translation of program messages to the user's native language is requested.]) else USE_NLS=no fi fi AC_MSG_CHECKING([whether to use NLS]) AC_MSG_RESULT([$USE_NLS]) if test "$USE_NLS" = "yes"; then AC_MSG_CHECKING([where the gettext function comes from]) if test "$gt_use_preinstalled_gnugettext" = "yes"; then if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then gt_source="external libintl" else gt_source="libc" fi else gt_source="included intl directory" fi AC_MSG_RESULT([$gt_source]) fi if test "$USE_NLS" = "yes"; then if test "$gt_use_preinstalled_gnugettext" = "yes"; then if { eval "gt_val=\$$gt_func_gnugettext_libintl"; test "$gt_val" = "yes"; }; then AC_MSG_CHECKING([how to link with libintl]) AC_MSG_RESULT([$LIBINTL]) AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCINTL]) fi dnl For backward compatibility. Some packages may be using this. AC_DEFINE([HAVE_GETTEXT], [1], [Define if the GNU gettext() function is already present or preinstalled.]) AC_DEFINE([HAVE_DCGETTEXT], [1], [Define if the GNU dcgettext() function is already present or preinstalled.]) fi dnl We need to process the po/ directory. POSUB=po fi ifelse(gt_included_intl, yes, [ dnl In GNU gettext we have to set BUILD_INCLUDED_LIBINTL to 'yes' dnl because some of the testsuite requires it. BUILD_INCLUDED_LIBINTL=yes dnl Make all variables we use known to autoconf. AC_SUBST([BUILD_INCLUDED_LIBINTL]) AC_SUBST([USE_INCLUDED_LIBINTL]) AC_SUBST([CATOBJEXT]) ]) dnl For backward compatibility. Some Makefiles may be using this. INTLLIBS="$LIBINTL" AC_SUBST([INTLLIBS]) dnl Make all documented variables known to autoconf. AC_SUBST([LIBINTL]) AC_SUBST([LTLIBINTL]) AC_SUBST([POSUB]) ]) dnl gt_NEEDS_INIT ensures that the gt_needs variable is initialized. m4_define([gt_NEEDS_INIT], [ m4_divert_text([DEFAULTS], [gt_needs=]) m4_define([gt_NEEDS_INIT], []) ]) dnl Usage: AM_GNU_GETTEXT_NEED([NEEDSYMBOL]) AC_DEFUN([AM_GNU_GETTEXT_NEED], [ m4_divert_text([INIT_PREPARE], [gt_needs="$gt_needs $1"]) ]) dnl Usage: AM_GNU_GETTEXT_VERSION([gettext-version]) AC_DEFUN([AM_GNU_GETTEXT_VERSION], []) dnl Usage: AM_GNU_GETTEXT_REQUIRE_VERSION([gettext-version]) AC_DEFUN([AM_GNU_GETTEXT_REQUIRE_VERSION], []) # iconv.m4 serial 21 dnl Copyright (C) 2000-2002, 2007-2014, 2016-2019 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. AC_DEFUN([AM_ICONV_LINKFLAGS_BODY], [ dnl Prerequisites of AC_LIB_LINKFLAGS_BODY. AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) AC_REQUIRE([AC_LIB_RPATH]) dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV dnl accordingly. AC_LIB_LINKFLAGS_BODY([iconv]) ]) AC_DEFUN([AM_ICONV_LINK], [ dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and dnl those with the standalone portable GNU libiconv installed). AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl Search for libiconv and define LIBICONV, LTLIBICONV and INCICONV dnl accordingly. AC_REQUIRE([AM_ICONV_LINKFLAGS_BODY]) dnl Add $INCICONV to CPPFLAGS before performing the following checks, dnl because if the user has installed libiconv and not disabled its use dnl via --without-libiconv-prefix, he wants to use it. The first dnl AC_LINK_IFELSE will then fail, the second AC_LINK_IFELSE will succeed. am_save_CPPFLAGS="$CPPFLAGS" AC_LIB_APPENDTOVAR([CPPFLAGS], [$INCICONV]) AC_CACHE_CHECK([for iconv], [am_cv_func_iconv], [ am_cv_func_iconv="no, consider installing GNU libiconv" am_cv_lib_iconv=no AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[ #include #include ]], [[iconv_t cd = iconv_open("",""); iconv(cd,NULL,NULL,NULL,NULL); iconv_close(cd);]])], [am_cv_func_iconv=yes]) if test "$am_cv_func_iconv" != yes; then am_save_LIBS="$LIBS" LIBS="$LIBS $LIBICONV" AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[ #include #include ]], [[iconv_t cd = iconv_open("",""); iconv(cd,NULL,NULL,NULL,NULL); iconv_close(cd);]])], [am_cv_lib_iconv=yes] [am_cv_func_iconv=yes]) LIBS="$am_save_LIBS" fi ]) if test "$am_cv_func_iconv" = yes; then AC_CACHE_CHECK([for working iconv], [am_cv_func_iconv_works], [ dnl This tests against bugs in AIX 5.1, AIX 6.1..7.1, HP-UX 11.11, dnl Solaris 10. am_save_LIBS="$LIBS" if test $am_cv_lib_iconv = yes; then LIBS="$LIBS $LIBICONV" fi am_cv_func_iconv_works=no for ac_iconv_const in '' 'const'; do AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[ #include #include #ifndef ICONV_CONST # define ICONV_CONST $ac_iconv_const #endif ]], [[int result = 0; /* Test against AIX 5.1 bug: Failures are not distinguishable from successful returns. */ { iconv_t cd_utf8_to_88591 = iconv_open ("ISO8859-1", "UTF-8"); if (cd_utf8_to_88591 != (iconv_t)(-1)) { static ICONV_CONST char input[] = "\342\202\254"; /* EURO SIGN */ char buf[10]; ICONV_CONST char *inptr = input; size_t inbytesleft = strlen (input); char *outptr = buf; size_t outbytesleft = sizeof (buf); size_t res = iconv (cd_utf8_to_88591, &inptr, &inbytesleft, &outptr, &outbytesleft); if (res == 0) result |= 1; iconv_close (cd_utf8_to_88591); } } /* Test against Solaris 10 bug: Failures are not distinguishable from successful returns. */ { iconv_t cd_ascii_to_88591 = iconv_open ("ISO8859-1", "646"); if (cd_ascii_to_88591 != (iconv_t)(-1)) { static ICONV_CONST char input[] = "\263"; char buf[10]; ICONV_CONST char *inptr = input; size_t inbytesleft = strlen (input); char *outptr = buf; size_t outbytesleft = sizeof (buf); size_t res = iconv (cd_ascii_to_88591, &inptr, &inbytesleft, &outptr, &outbytesleft); if (res == 0) result |= 2; iconv_close (cd_ascii_to_88591); } } /* Test against AIX 6.1..7.1 bug: Buffer overrun. */ { iconv_t cd_88591_to_utf8 = iconv_open ("UTF-8", "ISO-8859-1"); if (cd_88591_to_utf8 != (iconv_t)(-1)) { static ICONV_CONST char input[] = "\304"; static char buf[2] = { (char)0xDE, (char)0xAD }; ICONV_CONST char *inptr = input; size_t inbytesleft = 1; char *outptr = buf; size_t outbytesleft = 1; size_t res = iconv (cd_88591_to_utf8, &inptr, &inbytesleft, &outptr, &outbytesleft); if (res != (size_t)(-1) || outptr - buf > 1 || buf[1] != (char)0xAD) result |= 4; iconv_close (cd_88591_to_utf8); } } #if 0 /* This bug could be worked around by the caller. */ /* Test against HP-UX 11.11 bug: Positive return value instead of 0. */ { iconv_t cd_88591_to_utf8 = iconv_open ("utf8", "iso88591"); if (cd_88591_to_utf8 != (iconv_t)(-1)) { static ICONV_CONST char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337"; char buf[50]; ICONV_CONST char *inptr = input; size_t inbytesleft = strlen (input); char *outptr = buf; size_t outbytesleft = sizeof (buf); size_t res = iconv (cd_88591_to_utf8, &inptr, &inbytesleft, &outptr, &outbytesleft); if ((int)res > 0) result |= 8; iconv_close (cd_88591_to_utf8); } } #endif /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is provided. */ { /* Try standardized names. */ iconv_t cd1 = iconv_open ("UTF-8", "EUC-JP"); /* Try IRIX, OSF/1 names. */ iconv_t cd2 = iconv_open ("UTF-8", "eucJP"); /* Try AIX names. */ iconv_t cd3 = iconv_open ("UTF-8", "IBM-eucJP"); /* Try HP-UX names. */ iconv_t cd4 = iconv_open ("utf8", "eucJP"); if (cd1 == (iconv_t)(-1) && cd2 == (iconv_t)(-1) && cd3 == (iconv_t)(-1) && cd4 == (iconv_t)(-1)) result |= 16; if (cd1 != (iconv_t)(-1)) iconv_close (cd1); if (cd2 != (iconv_t)(-1)) iconv_close (cd2); if (cd3 != (iconv_t)(-1)) iconv_close (cd3); if (cd4 != (iconv_t)(-1)) iconv_close (cd4); } return result; ]])], [am_cv_func_iconv_works=yes], , [case "$host_os" in aix* | hpux*) am_cv_func_iconv_works="guessing no" ;; *) am_cv_func_iconv_works="guessing yes" ;; esac]) test "$am_cv_func_iconv_works" = no || break done LIBS="$am_save_LIBS" ]) case "$am_cv_func_iconv_works" in *no) am_func_iconv=no am_cv_lib_iconv=no ;; *) am_func_iconv=yes ;; esac else am_func_iconv=no am_cv_lib_iconv=no fi if test "$am_func_iconv" = yes; then AC_DEFINE([HAVE_ICONV], [1], [Define if you have the iconv() function and it works.]) fi if test "$am_cv_lib_iconv" = yes; then AC_MSG_CHECKING([how to link with libiconv]) AC_MSG_RESULT([$LIBICONV]) else dnl If $LIBICONV didn't lead to a usable library, we don't need $INCICONV dnl either. CPPFLAGS="$am_save_CPPFLAGS" LIBICONV= LTLIBICONV= fi AC_SUBST([LIBICONV]) AC_SUBST([LTLIBICONV]) ]) dnl Define AM_ICONV using AC_DEFUN_ONCE for Autoconf >= 2.64, in order to dnl avoid warnings like dnl "warning: AC_REQUIRE: `AM_ICONV' was expanded before it was required". dnl This is tricky because of the way 'aclocal' is implemented: dnl - It requires defining an auxiliary macro whose name ends in AC_DEFUN. dnl Otherwise aclocal's initial scan pass would miss the macro definition. dnl - It requires a line break inside the AC_DEFUN_ONCE and AC_DEFUN expansions. dnl Otherwise aclocal would emit many "Use of uninitialized value $1" dnl warnings. m4_define([gl_iconv_AC_DEFUN], m4_version_prereq([2.64], [[AC_DEFUN_ONCE( [$1], [$2])]], [m4_ifdef([gl_00GNULIB], [[AC_DEFUN_ONCE( [$1], [$2])]], [[AC_DEFUN( [$1], [$2])]])])) gl_iconv_AC_DEFUN([AM_ICONV], [ AM_ICONV_LINK if test "$am_cv_func_iconv" = yes; then AC_MSG_CHECKING([for iconv declaration]) AC_CACHE_VAL([am_cv_proto_iconv], [ AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[ #include #include extern #ifdef __cplusplus "C" #endif #if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus) size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); #else size_t iconv(); #endif ]], [[]])], [am_cv_proto_iconv_arg1=""], [am_cv_proto_iconv_arg1="const"]) am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` AC_MSG_RESULT([ $am_cv_proto_iconv]) else dnl When compiling GNU libiconv on a system that does not have iconv yet, dnl pick the POSIX compliant declaration without 'const'. am_cv_proto_iconv_arg1="" fi AC_DEFINE_UNQUOTED([ICONV_CONST], [$am_cv_proto_iconv_arg1], [Define as const if the declaration of iconv() needs const.]) dnl Also substitute ICONV_CONST in the gnulib generated . m4_ifdef([gl_ICONV_H_DEFAULTS], [AC_REQUIRE([gl_ICONV_H_DEFAULTS]) if test -n "$am_cv_proto_iconv_arg1"; then ICONV_CONST="const" fi ]) ]) # lib-ld.m4 serial 9 dnl Copyright (C) 1996-2003, 2009-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Subroutines of libtool.m4, dnl with replacements s/_*LT_PATH/AC_LIB_PROG/ and s/lt_/acl_/ to avoid dnl collision with libtool.m4. dnl From libtool-2.4. Sets the variable with_gnu_ld to yes or no. AC_DEFUN([AC_LIB_PROG_LD_GNU], [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], [acl_cv_prog_gnu_ld], [# I'd rather use --version here, but apparently some GNU lds only accept -v. case `$LD -v 2>&1 /dev/null 2>&1 \ && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \ || PATH_SEPARATOR=';' } fi if test -n "$LD"; then AC_MSG_CHECKING([for ld]) elif test "$GCC" = yes; then AC_MSG_CHECKING([for ld used by $CC]) elif test "$with_gnu_ld" = yes; then AC_MSG_CHECKING([for GNU ld]) else AC_MSG_CHECKING([for non-GNU ld]) fi if test -n "$LD"; then # Let the user override the test with a path. : else AC_CACHE_VAL([acl_cv_path_LD], [ acl_cv_path_LD= # Final result of this test ac_prog=ld # Program to search in $PATH if test "$GCC" = yes; then # Check if gcc -print-prog-name=ld gives a path. case $host in *-*-mingw*) # gcc leaves a trailing carriage return which upsets mingw acl_output=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; *) acl_output=`($CC -print-prog-name=ld) 2>&5` ;; esac case $acl_output in # Accept absolute paths. [[\\/]]* | ?:[[\\/]]*) re_direlt='/[[^/]][[^/]]*/\.\./' # Canonicalize the pathname of ld acl_output=`echo "$acl_output" | sed 's%\\\\%/%g'` while echo "$acl_output" | grep "$re_direlt" > /dev/null 2>&1; do acl_output=`echo $acl_output | sed "s%$re_direlt%/%"` done # Got the pathname. No search in PATH is needed. acl_cv_path_LD="$acl_output" ac_prog= ;; "") # If it fails, then pretend we aren't using GCC. ;; *) # If it is relative, then search for the first ld in PATH. with_gnu_ld=unknown ;; esac fi if test -n "$ac_prog"; then # Search for $ac_prog in $PATH. acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR for ac_dir in $PATH; do IFS="$acl_save_ifs" test -z "$ac_dir" && ac_dir=. if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then acl_cv_path_LD="$ac_dir/$ac_prog" # Check to see if the program is GNU ld. I'd rather use --version, # but apparently some variants of GNU ld only accept -v. # Break only if it was the GNU/non-GNU ld that we prefer. case `"$acl_cv_path_LD" -v 2>&1 conftest.sh . ./conftest.sh rm -f ./conftest.sh acl_cv_rpath=done ]) wl="$acl_cv_wl" acl_libext="$acl_cv_libext" acl_shlibext="$acl_cv_shlibext" acl_libname_spec="$acl_cv_libname_spec" acl_library_names_spec="$acl_cv_library_names_spec" acl_hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec" acl_hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator" acl_hardcode_direct="$acl_cv_hardcode_direct" acl_hardcode_minus_L="$acl_cv_hardcode_minus_L" dnl Determine whether the user wants rpath handling at all. AC_ARG_ENABLE([rpath], [ --disable-rpath do not hardcode runtime library paths], :, enable_rpath=yes) ]) dnl AC_LIB_FROMPACKAGE(name, package) dnl declares that libname comes from the given package. The configure file dnl will then not have a --with-libname-prefix option but a dnl --with-package-prefix option. Several libraries can come from the same dnl package. This declaration must occur before an AC_LIB_LINKFLAGS or similar dnl macro call that searches for libname. AC_DEFUN([AC_LIB_FROMPACKAGE], [ pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) define([acl_frompackage_]NAME, [$2]) popdef([NAME]) pushdef([PACK],[$2]) pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) define([acl_libsinpackage_]PACKUP, m4_ifdef([acl_libsinpackage_]PACKUP, [m4_defn([acl_libsinpackage_]PACKUP)[, ]],)[lib$1]) popdef([PACKUP]) popdef([PACK]) ]) dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and dnl the libraries corresponding to explicit and implicit dependencies. dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables. dnl Also, sets the LIB${NAME}_PREFIX variable to nonempty if libname was found dnl in ${LIB${NAME}_PREFIX}/$acl_libdirstem. AC_DEFUN([AC_LIB_LINKFLAGS_BODY], [ AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) pushdef([PACK],[m4_ifdef([acl_frompackage_]NAME, [acl_frompackage_]NAME, lib[$1])]) pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) pushdef([PACKLIBS],[m4_ifdef([acl_frompackage_]NAME, [acl_libsinpackage_]PACKUP, lib[$1])]) dnl By default, look in $includedir and $libdir. use_additional=yes AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" ]) AC_ARG_WITH(PACK[-prefix], [[ --with-]]PACK[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib --without-]]PACK[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]], [ if test "X$withval" = "Xno"; then use_additional=no else if test "X$withval" = "X"; then AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" ]) else additional_includedir="$withval/include" additional_libdir="$withval/$acl_libdirstem" if test "$acl_libdirstem2" != "$acl_libdirstem" \ && test ! -d "$withval/$acl_libdirstem"; then additional_libdir="$withval/$acl_libdirstem2" fi fi fi ]) dnl Search the library and its dependencies in $additional_libdir and dnl $LDFLAGS. Using breadth-first-seach. LIB[]NAME= LTLIB[]NAME= INC[]NAME= LIB[]NAME[]_PREFIX= dnl HAVE_LIB${NAME} is an indicator that LIB${NAME}, LTLIB${NAME} have been dnl computed. So it has to be reset here. HAVE_LIB[]NAME= rpathdirs= ltrpathdirs= names_already_handled= names_next_round='$1 $2' while test -n "$names_next_round"; do names_this_round="$names_next_round" names_next_round= for name in $names_this_round; do already_handled= for n in $names_already_handled; do if test "$n" = "$name"; then already_handled=yes break fi done if test -z "$already_handled"; then names_already_handled="$names_already_handled $name" dnl See if it was already located by an earlier AC_LIB_LINKFLAGS dnl or AC_LIB_HAVE_LINKFLAGS call. uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./+-|ABCDEFGHIJKLMNOPQRSTUVWXYZ____|'` eval value=\"\$HAVE_LIB$uppername\" if test -n "$value"; then if test "$value" = yes; then eval value=\"\$LIB$uppername\" test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value" eval value=\"\$LTLIB$uppername\" test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value" else dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined dnl that this library doesn't exist. So just drop it. : fi else dnl Search the library lib$name in $additional_libdir and $LDFLAGS dnl and the already constructed $LIBNAME/$LTLIBNAME. found_dir= found_la= found_so= found_a= eval libname=\"$acl_libname_spec\" # typically: libname=lib$name if test -n "$acl_shlibext"; then shrext=".$acl_shlibext" # typically: shrext=.so else shrext= fi if test $use_additional = yes; then dir="$additional_libdir" dnl The same code as in the loop below: dnl First look for a shared library. if test -n "$acl_shlibext"; then if test -f "$dir/$libname$shrext"; then found_dir="$dir" found_so="$dir/$libname$shrext" else if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then ver=`(cd "$dir" && \ for f in "$libname$shrext".*; do echo "$f"; done \ | sed -e "s,^$libname$shrext\\\\.,," \ | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ | sed 1q ) 2>/dev/null` if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then found_dir="$dir" found_so="$dir/$libname$shrext.$ver" fi else eval library_names=\"$acl_library_names_spec\" for f in $library_names; do if test -f "$dir/$f"; then found_dir="$dir" found_so="$dir/$f" break fi done fi fi fi dnl Then look for a static library. if test "X$found_dir" = "X"; then if test -f "$dir/$libname.$acl_libext"; then found_dir="$dir" found_a="$dir/$libname.$acl_libext" fi fi if test "X$found_dir" != "X"; then if test -f "$dir/$libname.la"; then found_la="$dir/$libname.la" fi fi fi if test "X$found_dir" = "X"; then for x in $LDFLAGS $LTLIB[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) case "$x" in -L*) dir=`echo "X$x" | sed -e 's/^X-L//'` dnl First look for a shared library. if test -n "$acl_shlibext"; then if test -f "$dir/$libname$shrext"; then found_dir="$dir" found_so="$dir/$libname$shrext" else if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then ver=`(cd "$dir" && \ for f in "$libname$shrext".*; do echo "$f"; done \ | sed -e "s,^$libname$shrext\\\\.,," \ | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ | sed 1q ) 2>/dev/null` if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then found_dir="$dir" found_so="$dir/$libname$shrext.$ver" fi else eval library_names=\"$acl_library_names_spec\" for f in $library_names; do if test -f "$dir/$f"; then found_dir="$dir" found_so="$dir/$f" break fi done fi fi fi dnl Then look for a static library. if test "X$found_dir" = "X"; then if test -f "$dir/$libname.$acl_libext"; then found_dir="$dir" found_a="$dir/$libname.$acl_libext" fi fi if test "X$found_dir" != "X"; then if test -f "$dir/$libname.la"; then found_la="$dir/$libname.la" fi fi ;; esac if test "X$found_dir" != "X"; then break fi done fi if test "X$found_dir" != "X"; then dnl Found the library. LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name" if test "X$found_so" != "X"; then dnl Linking with a shared library. We attempt to hardcode its dnl directory into the executable's runpath, unless it's the dnl standard /usr/lib. if test "$enable_rpath" = no \ || test "X$found_dir" = "X/usr/$acl_libdirstem" \ || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then dnl No hardcoding is needed. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" else dnl Use an explicit option to hardcode DIR into the resulting dnl binary. dnl Potentially add DIR to ltrpathdirs. dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. haveit= for x in $ltrpathdirs; do if test "X$x" = "X$found_dir"; then haveit=yes break fi done if test -z "$haveit"; then ltrpathdirs="$ltrpathdirs $found_dir" fi dnl The hardcoding into $LIBNAME is system dependent. if test "$acl_hardcode_direct" = yes; then dnl Using DIR/libNAME.so during linking hardcodes DIR into the dnl resulting binary. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" else if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then dnl Use an explicit option to hardcode DIR into the resulting dnl binary. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" dnl Potentially add DIR to rpathdirs. dnl The rpathdirs will be appended to $LIBNAME at the end. haveit= for x in $rpathdirs; do if test "X$x" = "X$found_dir"; then haveit=yes break fi done if test -z "$haveit"; then rpathdirs="$rpathdirs $found_dir" fi else dnl Rely on "-L$found_dir". dnl But don't add it if it's already contained in the LDFLAGS dnl or the already constructed $LIBNAME haveit= for x in $LDFLAGS $LIB[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) if test "X$x" = "X-L$found_dir"; then haveit=yes break fi done if test -z "$haveit"; then LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir" fi if test "$acl_hardcode_minus_L" != no; then dnl FIXME: Not sure whether we should use dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" dnl here. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" else dnl We cannot use $acl_hardcode_runpath_var and LD_RUN_PATH dnl here, because this doesn't fit in flags passed to the dnl compiler. So give up. No hardcoding. This affects only dnl very old systems. dnl FIXME: Not sure whether we should use dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" dnl here. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" fi fi fi fi else if test "X$found_a" != "X"; then dnl Linking with a static library. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a" else dnl We shouldn't come here, but anyway it's good to have a dnl fallback. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name" fi fi dnl Assume the include files are nearby. additional_includedir= case "$found_dir" in */$acl_libdirstem | */$acl_libdirstem/) basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'` if test "$name" = '$1'; then LIB[]NAME[]_PREFIX="$basedir" fi additional_includedir="$basedir/include" ;; */$acl_libdirstem2 | */$acl_libdirstem2/) basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem2/"'*$,,'` if test "$name" = '$1'; then LIB[]NAME[]_PREFIX="$basedir" fi additional_includedir="$basedir/include" ;; esac if test "X$additional_includedir" != "X"; then dnl Potentially add $additional_includedir to $INCNAME. dnl But don't add it dnl 1. if it's the standard /usr/include, dnl 2. if it's /usr/local/include and we are using GCC on Linux, dnl 3. if it's already present in $CPPFLAGS or the already dnl constructed $INCNAME, dnl 4. if it doesn't exist as a directory. if test "X$additional_includedir" != "X/usr/include"; then haveit= if test "X$additional_includedir" = "X/usr/local/include"; then if test -n "$GCC"; then case $host_os in linux* | gnu* | k*bsd*-gnu) haveit=yes;; esac fi fi if test -z "$haveit"; then for x in $CPPFLAGS $INC[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) if test "X$x" = "X-I$additional_includedir"; then haveit=yes break fi done if test -z "$haveit"; then if test -d "$additional_includedir"; then dnl Really add $additional_includedir to $INCNAME. INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir" fi fi fi fi fi dnl Look for dependencies. if test -n "$found_la"; then dnl Read the .la file. It defines the variables dnl dlname, library_names, old_library, dependency_libs, current, dnl age, revision, installed, dlopen, dlpreopen, libdir. save_libdir="$libdir" case "$found_la" in */* | *\\*) . "$found_la" ;; *) . "./$found_la" ;; esac libdir="$save_libdir" dnl We use only dependency_libs. for dep in $dependency_libs; do case "$dep" in -L*) additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'` dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME. dnl But don't add it dnl 1. if it's the standard /usr/lib, dnl 2. if it's /usr/local/lib and we are using GCC on Linux, dnl 3. if it's already present in $LDFLAGS or the already dnl constructed $LIBNAME, dnl 4. if it doesn't exist as a directory. if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \ && test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then haveit= if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \ || test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then if test -n "$GCC"; then case $host_os in linux* | gnu* | k*bsd*-gnu) haveit=yes;; esac fi fi if test -z "$haveit"; then haveit= for x in $LDFLAGS $LIB[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) if test "X$x" = "X-L$additional_libdir"; then haveit=yes break fi done if test -z "$haveit"; then if test -d "$additional_libdir"; then dnl Really add $additional_libdir to $LIBNAME. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir" fi fi haveit= for x in $LDFLAGS $LTLIB[]NAME; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) if test "X$x" = "X-L$additional_libdir"; then haveit=yes break fi done if test -z "$haveit"; then if test -d "$additional_libdir"; then dnl Really add $additional_libdir to $LTLIBNAME. LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir" fi fi fi fi ;; -R*) dir=`echo "X$dep" | sed -e 's/^X-R//'` if test "$enable_rpath" != no; then dnl Potentially add DIR to rpathdirs. dnl The rpathdirs will be appended to $LIBNAME at the end. haveit= for x in $rpathdirs; do if test "X$x" = "X$dir"; then haveit=yes break fi done if test -z "$haveit"; then rpathdirs="$rpathdirs $dir" fi dnl Potentially add DIR to ltrpathdirs. dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. haveit= for x in $ltrpathdirs; do if test "X$x" = "X$dir"; then haveit=yes break fi done if test -z "$haveit"; then ltrpathdirs="$ltrpathdirs $dir" fi fi ;; -l*) dnl Handle this in the next round. names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'` ;; *.la) dnl Handle this in the next round. Throw away the .la's dnl directory; it is already contained in a preceding -L dnl option. names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'` ;; *) dnl Most likely an immediate library name. LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep" LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep" ;; esac done fi else dnl Didn't find the library; assume it is in the system directories dnl known to the linker and runtime loader. (All the system dnl directories known to the linker should also be known to the dnl runtime loader, otherwise the system is severely misconfigured.) LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name" fi fi fi done done if test "X$rpathdirs" != "X"; then if test -n "$acl_hardcode_libdir_separator"; then dnl Weird platform: only the last -rpath option counts, the user must dnl pass all path elements in one option. We can arrange that for a dnl single library, but not when more than one $LIBNAMEs are used. alldirs= for found_dir in $rpathdirs; do alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir" done dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl. acl_save_libdir="$libdir" libdir="$alldirs" eval flag=\"$acl_hardcode_libdir_flag_spec\" libdir="$acl_save_libdir" LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" else dnl The -rpath options are cumulative. for found_dir in $rpathdirs; do acl_save_libdir="$libdir" libdir="$found_dir" eval flag=\"$acl_hardcode_libdir_flag_spec\" libdir="$acl_save_libdir" LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" done fi fi if test "X$ltrpathdirs" != "X"; then dnl When using libtool, the option that works for both libraries and dnl executables is -R. The -R options are cumulative. for found_dir in $ltrpathdirs; do LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" done fi popdef([PACKLIBS]) popdef([PACKUP]) popdef([PACK]) popdef([NAME]) ]) dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR, dnl unless already present in VAR. dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes dnl contains two or three consecutive elements that belong together. AC_DEFUN([AC_LIB_APPENDTOVAR], [ for element in [$2]; do haveit= for x in $[$1]; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) if test "X$x" = "X$element"; then haveit=yes break fi done if test -z "$haveit"; then [$1]="${[$1]}${[$1]:+ }$element" fi done ]) dnl For those cases where a variable contains several -L and -l options dnl referring to unknown libraries and directories, this macro determines the dnl necessary additional linker options for the runtime path. dnl AC_LIB_LINKFLAGS_FROM_LIBS([LDADDVAR], [LIBSVALUE], [USE-LIBTOOL]) dnl sets LDADDVAR to linker options needed together with LIBSVALUE. dnl If USE-LIBTOOL evaluates to non-empty, linking with libtool is assumed, dnl otherwise linking without libtool is assumed. AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], [ AC_REQUIRE([AC_LIB_RPATH]) AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) $1= if test "$enable_rpath" != no; then if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then dnl Use an explicit option to hardcode directories into the resulting dnl binary. rpathdirs= next= for opt in $2; do if test -n "$next"; then dir="$next" dnl No need to hardcode the standard /usr/lib. if test "X$dir" != "X/usr/$acl_libdirstem" \ && test "X$dir" != "X/usr/$acl_libdirstem2"; then rpathdirs="$rpathdirs $dir" fi next= else case $opt in -L) next=yes ;; -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'` dnl No need to hardcode the standard /usr/lib. if test "X$dir" != "X/usr/$acl_libdirstem" \ && test "X$dir" != "X/usr/$acl_libdirstem2"; then rpathdirs="$rpathdirs $dir" fi next= ;; *) next= ;; esac fi done if test "X$rpathdirs" != "X"; then if test -n ""$3""; then dnl libtool is used for linking. Use -R options. for dir in $rpathdirs; do $1="${$1}${$1:+ }-R$dir" done else dnl The linker is used for linking directly. if test -n "$acl_hardcode_libdir_separator"; then dnl Weird platform: only the last -rpath option counts, the user dnl must pass all path elements in one option. alldirs= for dir in $rpathdirs; do alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$dir" done acl_save_libdir="$libdir" libdir="$alldirs" eval flag=\"$acl_hardcode_libdir_flag_spec\" libdir="$acl_save_libdir" $1="$flag" else dnl The -rpath options are cumulative. for dir in $rpathdirs; do acl_save_libdir="$libdir" libdir="$dir" eval flag=\"$acl_hardcode_libdir_flag_spec\" libdir="$acl_save_libdir" $1="${$1}${$1:+ }$flag" done fi fi fi fi fi AC_SUBST([$1]) ]) # lib-prefix.m4 serial 14 dnl Copyright (C) 2001-2005, 2008-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed dnl to access previously installed libraries. The basic assumption is that dnl a user will want packages to use other packages he previously installed dnl with the same --prefix option. dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate dnl libraries, but is otherwise very convenient. AC_DEFUN([AC_LIB_PREFIX], [ AC_BEFORE([$0], [AC_LIB_LINKFLAGS]) AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) dnl By default, look in $includedir and $libdir. use_additional=yes AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" ]) AC_ARG_WITH([lib-prefix], [[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib --without-lib-prefix don't search for libraries in includedir and libdir]], [ if test "X$withval" = "Xno"; then use_additional=no else if test "X$withval" = "X"; then AC_LIB_WITH_FINAL_PREFIX([ eval additional_includedir=\"$includedir\" eval additional_libdir=\"$libdir\" ]) else additional_includedir="$withval/include" additional_libdir="$withval/$acl_libdirstem" fi fi ]) if test $use_additional = yes; then dnl Potentially add $additional_includedir to $CPPFLAGS. dnl But don't add it dnl 1. if it's the standard /usr/include, dnl 2. if it's already present in $CPPFLAGS, dnl 3. if it's /usr/local/include and we are using GCC on Linux, dnl 4. if it doesn't exist as a directory. if test "X$additional_includedir" != "X/usr/include"; then haveit= for x in $CPPFLAGS; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) if test "X$x" = "X-I$additional_includedir"; then haveit=yes break fi done if test -z "$haveit"; then if test "X$additional_includedir" = "X/usr/local/include"; then if test -n "$GCC"; then case $host_os in linux* | gnu* | k*bsd*-gnu) haveit=yes;; esac fi fi if test -z "$haveit"; then if test -d "$additional_includedir"; then dnl Really add $additional_includedir to $CPPFLAGS. CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" fi fi fi fi dnl Potentially add $additional_libdir to $LDFLAGS. dnl But don't add it dnl 1. if it's the standard /usr/lib, dnl 2. if it's already present in $LDFLAGS, dnl 3. if it's /usr/local/lib and we are using GCC on Linux, dnl 4. if it doesn't exist as a directory. if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then haveit= for x in $LDFLAGS; do AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) if test "X$x" = "X-L$additional_libdir"; then haveit=yes break fi done if test -z "$haveit"; then if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then if test -n "$GCC"; then case $host_os in linux*) haveit=yes;; esac fi fi if test -z "$haveit"; then if test -d "$additional_libdir"; then dnl Really add $additional_libdir to $LDFLAGS. LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" fi fi fi fi fi ]) dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix, dnl acl_final_exec_prefix, containing the values to which $prefix and dnl $exec_prefix will expand at the end of the configure script. AC_DEFUN([AC_LIB_PREPARE_PREFIX], [ dnl Unfortunately, prefix and exec_prefix get only finally determined dnl at the end of configure. if test "X$prefix" = "XNONE"; then acl_final_prefix="$ac_default_prefix" else acl_final_prefix="$prefix" fi if test "X$exec_prefix" = "XNONE"; then acl_final_exec_prefix='${prefix}' else acl_final_exec_prefix="$exec_prefix" fi acl_save_prefix="$prefix" prefix="$acl_final_prefix" eval acl_final_exec_prefix=\"$acl_final_exec_prefix\" prefix="$acl_save_prefix" ]) dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the dnl variables prefix and exec_prefix bound to the values they will have dnl at the end of the configure script. AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], [ acl_save_prefix="$prefix" prefix="$acl_final_prefix" acl_save_exec_prefix="$exec_prefix" exec_prefix="$acl_final_exec_prefix" $1 exec_prefix="$acl_save_exec_prefix" prefix="$acl_save_prefix" ]) dnl AC_LIB_PREPARE_MULTILIB creates dnl - a variable acl_libdirstem, containing the basename of the libdir, either dnl "lib" or "lib64" or "lib/64", dnl - a variable acl_libdirstem2, as a secondary possible value for dnl acl_libdirstem, either the same as acl_libdirstem or "lib/sparcv9" or dnl "lib/amd64". AC_DEFUN([AC_LIB_PREPARE_MULTILIB], [ dnl There is no formal standard regarding lib and lib64. dnl On glibc systems, the current practice is that on a system supporting dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. We determine dnl the compiler's default mode by looking at the compiler's library search dnl path. If at least one of its elements ends in /lib64 or points to a dnl directory whose absolute pathname ends in /lib64, we assume a 64-bit ABI. dnl Otherwise we use the default, namely "lib". dnl On Solaris systems, the current practice is that on a system supporting dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib. AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_HOST_CPU_C_ABI_32BIT]) case "$host_os" in solaris*) AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit], [AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#ifdef _LP64 int ok; #else error fail #endif ]])], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no]) ]);; esac dnl Allow the user to override the result by setting acl_cv_libdirstems. AC_CACHE_CHECK([for the common suffixes of directories in the library search path], [acl_cv_libdirstems], [acl_libdirstem=lib acl_libdirstem2= case "$host_os" in solaris*) dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment dnl . dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link." dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the dnl symlink is missing, so we set acl_libdirstem2 too. if test $gl_cv_solaris_64bit = yes; then acl_libdirstem=lib/64 case "$host_cpu" in sparc*) acl_libdirstem2=lib/sparcv9 ;; i*86 | x86_64) acl_libdirstem2=lib/amd64 ;; esac fi ;; *) dnl If $CC generates code for a 32-bit ABI, the libraries are dnl surely under $prefix/lib, not $prefix/lib64. if test "$HOST_CPU_C_ABI_32BIT" != yes; then dnl The result is a property of the system. However, non-system dnl compilers sometimes have odd library search paths. Therefore dnl prefer asking /usr/bin/gcc, if available, rather than $CC. searchpath=`(if test -f /usr/bin/gcc \ && LC_ALL=C /usr/bin/gcc -print-search-dirs >/dev/null 2>/dev/null; then \ LC_ALL=C /usr/bin/gcc -print-search-dirs; \ else \ LC_ALL=C $CC -print-search-dirs; \ fi) 2>/dev/null \ | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'` if test -n "$searchpath"; then acl_save_IFS="${IFS= }"; IFS=":" for searchdir in $searchpath; do if test -d "$searchdir"; then case "$searchdir" in */lib64/ | */lib64 ) acl_libdirstem=lib64 ;; */../ | */.. ) # Better ignore directories of this form. They are misleading. ;; *) searchdir=`cd "$searchdir" && pwd` case "$searchdir" in */lib64 ) acl_libdirstem=lib64 ;; esac ;; esac fi done IFS="$acl_save_IFS" fi fi ;; esac test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem" acl_cv_libdirstems="$acl_libdirstem,$acl_libdirstem2" ]) # Decompose acl_cv_libdirstems into acl_libdirstem and acl_libdirstem2. acl_libdirstem=`echo "$acl_cv_libdirstems" | sed -e 's/,.*//'` acl_libdirstem2=`echo "$acl_cv_libdirstems" | sed -e '/,/s/.*,//'` ]) # nls.m4 serial 5 (gettext-0.18) dnl Copyright (C) 1995-2003, 2005-2006, 2008-2014, 2016, 2019 Free Software dnl Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl dnl This file can be used in projects which are not available under dnl the GNU General Public License or the GNU Library General Public dnl License but which still want to provide support for the GNU gettext dnl functionality. dnl Please note that the actual code of the GNU gettext library is covered dnl by the GNU Library General Public License, and the rest of the GNU dnl gettext package is covered by the GNU General Public License. dnl They are *not* in the public domain. dnl Authors: dnl Ulrich Drepper , 1995-2000. dnl Bruno Haible , 2000-2003. AC_PREREQ([2.50]) AC_DEFUN([AM_NLS], [ AC_MSG_CHECKING([whether NLS is requested]) dnl Default is enabled NLS AC_ARG_ENABLE([nls], [ --disable-nls do not use Native Language Support], USE_NLS=$enableval, USE_NLS=yes) AC_MSG_RESULT([$USE_NLS]) AC_SUBST([USE_NLS]) ]) # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- # serial 12 (pkg-config-0.29.2) dnl Copyright © 2004 Scott James Remnant . dnl Copyright © 2012-2015 Dan Nicholson dnl dnl This program is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 2 of the License, or dnl (at your option) any later version. dnl dnl This program is distributed in the hope that it will be useful, but dnl WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU dnl General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program; if not, write to the Free Software dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA dnl 02111-1307, USA. dnl dnl As a special exception to the GNU General Public License, if you dnl distribute this file as part of a program that contains a dnl configuration script generated by Autoconf, you may include it under dnl the same distribution terms that you use for the rest of that dnl program. dnl PKG_PREREQ(MIN-VERSION) dnl ----------------------- dnl Since: 0.29 dnl dnl Verify that the version of the pkg-config macros are at least dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's dnl installed version of pkg-config, this checks the developer's version dnl of pkg.m4 when generating configure. dnl dnl To ensure that this macro is defined, also add: dnl m4_ifndef([PKG_PREREQ], dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])]) dnl dnl See the "Since" comment for each macro you use to see what version dnl of the macros you require. m4_defun([PKG_PREREQ], [m4_define([PKG_MACROS_VERSION], [0.29.2]) m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1, [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])]) ])dnl PKG_PREREQ dnl PKG_PROG_PKG_CONFIG([MIN-VERSION]) dnl ---------------------------------- dnl Since: 0.16 dnl dnl Search for the pkg-config tool and set the PKG_CONFIG variable to dnl first found in the path. Checks that the version of pkg-config found dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is dnl used since that's the first version where most current features of dnl pkg-config existed. AC_DEFUN([PKG_PROG_PKG_CONFIG], [m4_pattern_forbid([^_?PKG_[A-Z_]+$]) m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$]) AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) fi if test -n "$PKG_CONFIG"; then _pkg_min_version=m4_default([$1], [0.9.0]) AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) PKG_CONFIG="" fi fi[]dnl ])dnl PKG_PROG_PKG_CONFIG dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) dnl ------------------------------------------------------------------- dnl Since: 0.18 dnl dnl Check to see whether a particular set of modules exists. Similar to dnl PKG_CHECK_MODULES(), but does not set variables or print errors. dnl dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) dnl only at the first occurence in configure.ac, so if the first place dnl it's called might be skipped (such as if it is within an "if", you dnl have to call PKG_CHECK_EXISTS manually AC_DEFUN([PKG_CHECK_EXISTS], [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl if test -n "$PKG_CONFIG" && \ AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then m4_default([$2], [:]) m4_ifvaln([$3], [else $3])dnl fi]) dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) dnl --------------------------------------------- dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting dnl pkg_failed based on the result. m4_define([_PKG_CONFIG], [if test -n "$$1"; then pkg_cv_[]$1="$$1" elif test -n "$PKG_CONFIG"; then PKG_CHECK_EXISTS([$3], [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null` test "x$?" != "x0" && pkg_failed=yes ], [pkg_failed=yes]) else pkg_failed=untried fi[]dnl ])dnl _PKG_CONFIG dnl _PKG_SHORT_ERRORS_SUPPORTED dnl --------------------------- dnl Internal check to see if pkg-config supports short errors. AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], [AC_REQUIRE([PKG_PROG_PKG_CONFIG]) if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then _pkg_short_errors_supported=yes else _pkg_short_errors_supported=no fi[]dnl ])dnl _PKG_SHORT_ERRORS_SUPPORTED dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], dnl [ACTION-IF-NOT-FOUND]) dnl -------------------------------------------------------------- dnl Since: 0.4.0 dnl dnl Note that if there is a possibility the first call to dnl PKG_CHECK_MODULES might not happen, you should be sure to include an dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac AC_DEFUN([PKG_CHECK_MODULES], [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl pkg_failed=no AC_MSG_CHECKING([for $2]) _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) _PKG_CONFIG([$1][_LIBS], [libs], [$2]) m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS and $1[]_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details.]) if test $pkg_failed = yes; then AC_MSG_RESULT([no]) _PKG_SHORT_ERRORS_SUPPORTED if test $_pkg_short_errors_supported = yes; then $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` else $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` fi # Put the nasty error message in config.log where it belongs echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD m4_default([$4], [AC_MSG_ERROR( [Package requirements ($2) were not met: $$1_PKG_ERRORS Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. _PKG_TEXT])[]dnl ]) elif test $pkg_failed = untried; then AC_MSG_RESULT([no]) m4_default([$4], [AC_MSG_FAILURE( [The pkg-config script could not be found or is too old. Make sure it is in your PATH or set the PKG_CONFIG environment variable to the full path to pkg-config. _PKG_TEXT To get pkg-config, see .])[]dnl ]) else $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS $1[]_LIBS=$pkg_cv_[]$1[]_LIBS AC_MSG_RESULT([yes]) $3 fi[]dnl ])dnl PKG_CHECK_MODULES dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], dnl [ACTION-IF-NOT-FOUND]) dnl --------------------------------------------------------------------- dnl Since: 0.29 dnl dnl Checks for existence of MODULES and gathers its build flags with dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags dnl and VARIABLE-PREFIX_LIBS from --libs. dnl dnl Note that if there is a possibility the first call to dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to dnl include an explicit call to PKG_PROG_PKG_CONFIG in your dnl configure.ac. AC_DEFUN([PKG_CHECK_MODULES_STATIC], [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl _save_PKG_CONFIG=$PKG_CONFIG PKG_CONFIG="$PKG_CONFIG --static" PKG_CHECK_MODULES($@) PKG_CONFIG=$_save_PKG_CONFIG[]dnl ])dnl PKG_CHECK_MODULES_STATIC dnl PKG_INSTALLDIR([DIRECTORY]) dnl ------------------------- dnl Since: 0.27 dnl dnl Substitutes the variable pkgconfigdir as the location where a module dnl should install pkg-config .pc files. By default the directory is dnl $libdir/pkgconfig, but the default can be changed by passing dnl DIRECTORY. The user can override through the --with-pkgconfigdir dnl parameter. AC_DEFUN([PKG_INSTALLDIR], [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) m4_pushdef([pkg_description], [pkg-config installation directory @<:@]pkg_default[@:>@]) AC_ARG_WITH([pkgconfigdir], [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],, [with_pkgconfigdir=]pkg_default) AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) m4_popdef([pkg_default]) m4_popdef([pkg_description]) ])dnl PKG_INSTALLDIR dnl PKG_NOARCH_INSTALLDIR([DIRECTORY]) dnl -------------------------------- dnl Since: 0.27 dnl dnl Substitutes the variable noarch_pkgconfigdir as the location where a dnl module should install arch-independent pkg-config .pc files. By dnl default the directory is $datadir/pkgconfig, but the default can be dnl changed by passing DIRECTORY. The user can override through the dnl --with-noarch-pkgconfigdir parameter. AC_DEFUN([PKG_NOARCH_INSTALLDIR], [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) m4_pushdef([pkg_description], [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@]) AC_ARG_WITH([noarch-pkgconfigdir], [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],, [with_noarch_pkgconfigdir=]pkg_default) AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) m4_popdef([pkg_default]) m4_popdef([pkg_description]) ])dnl PKG_NOARCH_INSTALLDIR dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) dnl ------------------------------------------- dnl Since: 0.28 dnl dnl Retrieves the value of the pkg-config variable for the given module. AC_DEFUN([PKG_CHECK_VAR], [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl _PKG_CONFIG([$1], [variable="][$3]["], [$2]) AS_VAR_COPY([$1], [pkg_cv_][$1]) AS_VAR_IF([$1], [""], [$5], [$4])dnl ])dnl PKG_CHECK_VAR # po.m4 serial 30 (gettext-0.20) dnl Copyright (C) 1995-2014, 2016, 2018-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl dnl This file can be used in projects which are not available under dnl the GNU General Public License or the GNU Library General Public dnl License but which still want to provide support for the GNU gettext dnl functionality. dnl Please note that the actual code of the GNU gettext library is covered dnl by the GNU Library General Public License, and the rest of the GNU dnl gettext package is covered by the GNU General Public License. dnl They are *not* in the public domain. dnl Authors: dnl Ulrich Drepper , 1995-2000. dnl Bruno Haible , 2000-2003. AC_PREREQ([2.60]) dnl Checks for all prerequisites of the po subdirectory. AC_DEFUN([AM_PO_SUBDIRS], [ AC_REQUIRE([AC_PROG_MAKE_SET])dnl AC_REQUIRE([AC_PROG_INSTALL])dnl AC_REQUIRE([AC_PROG_MKDIR_P])dnl AC_REQUIRE([AC_PROG_SED])dnl AC_REQUIRE([AM_NLS])dnl dnl Release version of the gettext macros. This is used to ensure that dnl the gettext macros and po/Makefile.in.in are in sync. AC_SUBST([GETTEXT_MACRO_VERSION], [0.20]) dnl Perform the following tests also if --disable-nls has been given, dnl because they are needed for "make dist" to work. dnl Search for GNU msgfmt in the PATH. dnl The first test excludes Solaris msgfmt and early GNU msgfmt versions. dnl The second test excludes FreeBSD msgfmt. AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt, [$ac_dir/$ac_word --statistics /dev/null >&]AS_MESSAGE_LOG_FD[ 2>&1 && (if $ac_dir/$ac_word --statistics /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)], :) AC_PATH_PROG([GMSGFMT], [gmsgfmt], [$MSGFMT]) dnl Test whether it is GNU msgfmt >= 0.15. changequote(,)dnl case `$GMSGFMT --version | sed 1q | sed -e 's,^[^0-9]*,,'` in '' | 0.[0-9] | 0.[0-9].* | 0.1[0-4] | 0.1[0-4].*) GMSGFMT_015=: ;; *) GMSGFMT_015=$GMSGFMT ;; esac changequote([,])dnl AC_SUBST([GMSGFMT_015]) dnl Search for GNU xgettext 0.12 or newer in the PATH. dnl The first test excludes Solaris xgettext and early GNU xgettext versions. dnl The second test excludes FreeBSD xgettext. AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext, [$ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null >&]AS_MESSAGE_LOG_FD[ 2>&1 && (if $ac_dir/$ac_word --omit-header --copyright-holder= --msgid-bugs-address= /dev/null 2>&1 >/dev/null | grep usage >/dev/null; then exit 1; else exit 0; fi)], :) dnl Remove leftover from FreeBSD xgettext call. rm -f messages.po dnl Test whether it is GNU xgettext >= 0.15. changequote(,)dnl case `$XGETTEXT --version | sed 1q | sed -e 's,^[^0-9]*,,'` in '' | 0.[0-9] | 0.[0-9].* | 0.1[0-4] | 0.1[0-4].*) XGETTEXT_015=: ;; *) XGETTEXT_015=$XGETTEXT ;; esac changequote([,])dnl AC_SUBST([XGETTEXT_015]) dnl Search for GNU msgmerge 0.11 or newer in the PATH. AM_PATH_PROG_WITH_TEST(MSGMERGE, msgmerge, [$ac_dir/$ac_word --update -q /dev/null /dev/null >&]AS_MESSAGE_LOG_FD[ 2>&1], :) dnl Test whether it is GNU msgmerge >= 0.20. if LC_ALL=C $MSGMERGE --help | grep ' --for-msgfmt ' >/dev/null; then MSGMERGE_FOR_MSGFMT_OPTION='--for-msgfmt' else dnl Test whether it is GNU msgmerge >= 0.12. if LC_ALL=C $MSGMERGE --help | grep ' --no-fuzzy-matching ' >/dev/null; then MSGMERGE_FOR_MSGFMT_OPTION='--no-fuzzy-matching --no-location --quiet' else dnl With these old versions, $(MSGMERGE) $(MSGMERGE_FOR_MSGFMT_OPTION) is dnl slow. But this is not a big problem, as such old gettext versions are dnl hardly in use any more. MSGMERGE_FOR_MSGFMT_OPTION='--no-location --quiet' fi fi AC_SUBST([MSGMERGE_FOR_MSGFMT_OPTION]) dnl Support for AM_XGETTEXT_OPTION. test -n "${XGETTEXT_EXTRA_OPTIONS+set}" || XGETTEXT_EXTRA_OPTIONS= AC_SUBST([XGETTEXT_EXTRA_OPTIONS]) AC_CONFIG_COMMANDS([po-directories], [[ for ac_file in $CONFIG_FILES; do # Support "outfile[:infile[:infile...]]" case "$ac_file" in *:*) ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;; esac # PO directories have a Makefile.in generated from Makefile.in.in. case "$ac_file" in */Makefile.in) # Adjust a relative srcdir. ac_dir=`echo "$ac_file"|sed 's%/[^/][^/]*$%%'` ac_dir_suffix=/`echo "$ac_dir"|sed 's%^\./%%'` ac_dots=`echo "$ac_dir_suffix"|sed 's%/[^/]*%../%g'` # In autoconf-2.13 it is called $ac_given_srcdir. # In autoconf-2.50 it is called $srcdir. test -n "$ac_given_srcdir" || ac_given_srcdir="$srcdir" case "$ac_given_srcdir" in .) top_srcdir=`echo $ac_dots|sed 's%/$%%'` ;; /*) top_srcdir="$ac_given_srcdir" ;; *) top_srcdir="$ac_dots$ac_given_srcdir" ;; esac # Treat a directory as a PO directory if and only if it has a # POTFILES.in file. This allows packages to have multiple PO # directories under different names or in different locations. if test -f "$ac_given_srcdir/$ac_dir/POTFILES.in"; then rm -f "$ac_dir/POTFILES" test -n "$as_me" && echo "$as_me: creating $ac_dir/POTFILES" || echo "creating $ac_dir/POTFILES" gt_tab=`printf '\t'` cat "$ac_given_srcdir/$ac_dir/POTFILES.in" | sed -e "/^#/d" -e "/^[ ${gt_tab}]*\$/d" -e "s,.*, $top_srcdir/& \\\\," | sed -e "\$s/\(.*\) \\\\/\1/" > "$ac_dir/POTFILES" POMAKEFILEDEPS="POTFILES.in" # ALL_LINGUAS, POFILES, UPDATEPOFILES, DUMMYPOFILES, GMOFILES depend # on $ac_dir but don't depend on user-specified configuration # parameters. if test -f "$ac_given_srcdir/$ac_dir/LINGUAS"; then # The LINGUAS file contains the set of available languages. if test -n "$OBSOLETE_ALL_LINGUAS"; then test -n "$as_me" && echo "$as_me: setting ALL_LINGUAS in configure.in is obsolete" || echo "setting ALL_LINGUAS in configure.in is obsolete" fi ALL_LINGUAS=`sed -e "/^#/d" -e "s/#.*//" "$ac_given_srcdir/$ac_dir/LINGUAS"` POMAKEFILEDEPS="$POMAKEFILEDEPS LINGUAS" else # The set of available languages was given in configure.in. ALL_LINGUAS=$OBSOLETE_ALL_LINGUAS fi # Compute POFILES # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).po) # Compute UPDATEPOFILES # as $(foreach lang, $(ALL_LINGUAS), $(lang).po-update) # Compute DUMMYPOFILES # as $(foreach lang, $(ALL_LINGUAS), $(lang).nop) # Compute GMOFILES # as $(foreach lang, $(ALL_LINGUAS), $(srcdir)/$(lang).gmo) case "$ac_given_srcdir" in .) srcdirpre= ;; *) srcdirpre='$(srcdir)/' ;; esac POFILES= UPDATEPOFILES= DUMMYPOFILES= GMOFILES= for lang in $ALL_LINGUAS; do POFILES="$POFILES $srcdirpre$lang.po" UPDATEPOFILES="$UPDATEPOFILES $lang.po-update" DUMMYPOFILES="$DUMMYPOFILES $lang.nop" GMOFILES="$GMOFILES $srcdirpre$lang.gmo" done # CATALOGS depends on both $ac_dir and the user's LINGUAS # environment variable. 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AC_DEFUN([gl_ABSOLUTE_HEADER], [AC_REQUIRE([AC_CANONICAL_HOST]) AC_LANG_PREPROC_REQUIRE()dnl dnl FIXME: gl_absolute_header and ac_header_exists must be used unquoted dnl until we can assume autoconf 2.64 or newer. m4_foreach_w([gl_HEADER_NAME], [$1], [AS_VAR_PUSHDEF([gl_absolute_header], [gl_cv_absolute_]m4_defn([gl_HEADER_NAME]))dnl AC_CACHE_CHECK([absolute name of <]m4_defn([gl_HEADER_NAME])[>], m4_defn([gl_absolute_header]), [AS_VAR_PUSHDEF([ac_header_exists], [ac_cv_header_]m4_defn([gl_HEADER_NAME]))dnl AC_CHECK_HEADERS_ONCE(m4_defn([gl_HEADER_NAME]))dnl if test AS_VAR_GET(ac_header_exists) = yes; then gl_ABSOLUTE_HEADER_ONE(m4_defn([gl_HEADER_NAME])) fi AS_VAR_POPDEF([ac_header_exists])dnl ])dnl AC_DEFINE_UNQUOTED(AS_TR_CPP([ABSOLUTE_]m4_defn([gl_HEADER_NAME])), ["AS_VAR_GET(gl_absolute_header)"], [Define this to an absolute name of <]m4_defn([gl_HEADER_NAME])[>.]) AS_VAR_POPDEF([gl_absolute_header])dnl ])dnl ])# gl_ABSOLUTE_HEADER # gl_ABSOLUTE_HEADER_ONE(HEADER) # ------------------------------ # Like gl_ABSOLUTE_HEADER, except that: # - it assumes that the header exists, # - it uses the current CPPFLAGS, # - it does not cache the result, # - it is silent. 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AC_DEFUN([gl_FUNC_ALLOCA], [ AC_REQUIRE([AC_FUNC_ALLOCA]) if test $ac_cv_func_alloca_works = no; then gl_PREREQ_ALLOCA fi # Define an additional variable used in the Makefile substitution. if test $ac_cv_working_alloca_h = yes; then AC_CACHE_CHECK([for alloca as a compiler built-in], [gl_cv_rpl_alloca], [ AC_EGREP_CPP([Need own alloca], [ #if defined __GNUC__ || defined _AIX || defined _MSC_VER Need own alloca #endif ], [gl_cv_rpl_alloca=yes], [gl_cv_rpl_alloca=no]) ]) if test $gl_cv_rpl_alloca = yes; then dnl OK, alloca can be implemented through a compiler built-in. AC_DEFINE([HAVE_ALLOCA], [1], [Define to 1 if you have 'alloca' after including , a header that may be supplied by this distribution.]) ALLOCA_H=alloca.h else dnl alloca exists as a library function, i.e. it is slow and probably dnl a memory leak. Don't define HAVE_ALLOCA in this case. 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This file is offered as-is, without any # warranty. #serial 10 AC_DEFUN([AX_AC_PRINT_TO_FILE],[ m4_esyscmd( AC_REQUIRE([AX_FILE_ESCAPES]) [ printf "%s" "$2" > "$1" ]) ]) # =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_add_am_macro_static.html # =========================================================================== # # SYNOPSIS # # AX_ADD_AM_MACRO_STATIC([RULE]) # # DESCRIPTION # # Adds the specified rule to $AMINCLUDE. # # LICENSE # # Copyright (c) 2009 Tom Howard # Copyright (c) 2009 Allan Caffee # # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. This file is offered as-is, without any # warranty. #serial 8 AC_DEFUN([AX_ADD_AM_MACRO_STATIC],[ AC_REQUIRE([AX_AM_MACROS_STATIC]) AX_AC_APPEND_TO_FILE(AMINCLUDE_STATIC,[$1]) ]) # =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_am_macros_static.html # =========================================================================== # # SYNOPSIS # # AX_AM_MACROS_STATIC # # DESCRIPTION # # Adds support for macros that create Automake rules. You must manually # add the following line # # include $(top_srcdir)/aminclude_static.am # # to your Makefile.am files. # # LICENSE # # Copyright (c) 2009 Tom Howard # Copyright (c) 2009 Allan Caffee # # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. This file is offered as-is, without any # warranty. #serial 11 AC_DEFUN([AMINCLUDE_STATIC],[aminclude_static.am]) AC_DEFUN([AX_AM_MACROS_STATIC], [ AX_AC_PRINT_TO_FILE(AMINCLUDE_STATIC,[ # ]AMINCLUDE_STATIC[ generated automatically by Autoconf # from AX_AM_MACROS_STATIC on ]m4_esyscmd([LC_ALL=C date])[ ]) ]) # =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_check_gnu_make.html # =========================================================================== # # SYNOPSIS # # AX_CHECK_GNU_MAKE([run-if-true],[run-if-false]) # # DESCRIPTION # # This macro searches for a GNU version of make. If a match is found: # # * The makefile variable `ifGNUmake' is set to the empty string, otherwise # it is set to "#". This is useful for including a special features in a # Makefile, which cannot be handled by other versions of make. # * The makefile variable `ifnGNUmake' is set to #, otherwise # it is set to the empty string. This is useful for including a special # features in a Makefile, which can be handled # by other versions of make or to specify else like clause. # * The variable `_cv_gnu_make_command` is set to the command to invoke # GNU make if it exists, the empty string otherwise. # * The variable `ax_cv_gnu_make_command` is set to the command to invoke # GNU make by copying `_cv_gnu_make_command`, otherwise it is unset. # * If GNU Make is found, its version is extracted from the output of # `make --version` as the last field of a record of space-separated # columns and saved into the variable `ax_check_gnu_make_version`. # * Additionally if GNU Make is found, run shell code run-if-true # else run shell code run-if-false. # # Here is an example of its use: # # Makefile.in might contain: # # # A failsafe way of putting a dependency rule into a makefile # $(DEPEND): # $(CC) -MM $(srcdir)/*.c > $(DEPEND) # # @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND))) # @ifGNUmake@ include $(DEPEND) # @ifGNUmake@ else # fallback code # @ifGNUmake@ endif # # Then configure.in would normally contain: # # AX_CHECK_GNU_MAKE() # AC_OUTPUT(Makefile) # # Then perhaps to cause gnu make to override any other make, we could do # something like this (note that GNU make always looks for GNUmakefile # first): # # if ! test x$_cv_gnu_make_command = x ; then # mv Makefile GNUmakefile # echo .DEFAULT: > Makefile ; # echo \ $_cv_gnu_make_command \$@ >> Makefile; # fi # # Then, if any (well almost any) other make is called, and GNU make also # exists, then the other make wraps the GNU make. # # LICENSE # # Copyright (c) 2008 John Darrington # Copyright (c) 2015 Enrico M. Crisostomo # # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. This file is offered as-is, without any # warranty. #serial 11 AC_DEFUN([AX_CHECK_GNU_MAKE],dnl [AC_PROG_AWK AC_CACHE_CHECK([for GNU make],[_cv_gnu_make_command],[dnl _cv_gnu_make_command="" ; dnl Search all the common names for GNU make for a in "$MAKE" make gmake gnumake ; do if test -z "$a" ; then continue ; fi ; if "$a" --version 2> /dev/null | grep GNU 2>&1 > /dev/null ; then _cv_gnu_make_command=$a ; AX_CHECK_GNU_MAKE_HEADLINE=$("$a" --version 2> /dev/null | grep "GNU Make") ax_check_gnu_make_version=$(echo ${AX_CHECK_GNU_MAKE_HEADLINE} | ${AWK} -F " " '{ print $(NF); }') break ; fi done ;]) dnl If there was a GNU version, then set @ifGNUmake@ to the empty string, '#' otherwise AS_VAR_IF([_cv_gnu_make_command], [""], [AS_VAR_SET([ifGNUmake], ["#"])], [AS_VAR_SET([ifGNUmake], [""])]) AS_VAR_IF([_cv_gnu_make_command], [""], [AS_VAR_SET([ifnGNUmake], [""])], [AS_VAR_SET([ifGNUmake], ["#"])]) AS_VAR_IF([_cv_gnu_make_command], [""], [AS_UNSET(ax_cv_gnu_make_command)], [AS_VAR_SET([ax_cv_gnu_make_command], [${_cv_gnu_make_command}])]) AS_VAR_IF([_cv_gnu_make_command], [""],[$2],[$1]) AC_SUBST([ifGNUmake]) AC_SUBST([ifnGNUmake]) ]) # =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_code_coverage.html # =========================================================================== # # SYNOPSIS # # AX_CODE_COVERAGE() # # DESCRIPTION # # Defines CODE_COVERAGE_CPPFLAGS, CODE_COVERAGE_CFLAGS, # CODE_COVERAGE_CXXFLAGS and CODE_COVERAGE_LIBS which should be included # in the CPPFLAGS, CFLAGS CXXFLAGS and LIBS/LIBADD variables of every # build target (program or library) which should be built with code # coverage support. Also add rules using AX_ADD_AM_MACRO_STATIC; and # $enable_code_coverage which can be used in subsequent configure output. # CODE_COVERAGE_ENABLED is defined and substituted, and corresponds to the # value of the --enable-code-coverage option, which defaults to being # disabled. # # Test also for gcov program and create GCOV variable that could be # substituted. # # Note that all optimization flags in CFLAGS must be disabled when code # coverage is enabled. # # Usage example: # # configure.ac: # # AX_CODE_COVERAGE # # Makefile.am: # # include $(top_srcdir)/aminclude_static.am # # my_program_LIBS = ... $(CODE_COVERAGE_LIBS) ... # my_program_CPPFLAGS = ... $(CODE_COVERAGE_CPPFLAGS) ... # my_program_CFLAGS = ... $(CODE_COVERAGE_CFLAGS) ... # my_program_CXXFLAGS = ... $(CODE_COVERAGE_CXXFLAGS) ... # # clean-local: code-coverage-clean # distclean-local: code-coverage-dist-clean # # This results in a "check-code-coverage" rule being added to any # Makefile.am which do "include $(top_srcdir)/aminclude_static.am" # (assuming the module has been configured with --enable-code-coverage). # Running `make check-code-coverage` in that directory will run the # module's test suite (`make check`) and build a code coverage report # detailing the code which was touched, then print the URI for the report. # # This code was derived from Makefile.decl in GLib, originally licensed # under LGPLv2.1+. # # LICENSE # # Copyright (c) 2012, 2016 Philip Withnall # Copyright (c) 2012 Xan Lopez # Copyright (c) 2012 Christian Persch # Copyright (c) 2012 Paolo Borelli # Copyright (c) 2012 Dan Winship # Copyright (c) 2015,2018 Bastien ROUCARIES # # This library is free software; you can redistribute it and/or modify it # under the terms of the GNU Lesser General Public License as published by # the Free Software Foundation; either version 2.1 of the License, or (at # your option) any later version. # # This library is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser # General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with this program. If not, see . #serial 32 m4_define(_AX_CODE_COVERAGE_RULES,[ AX_ADD_AM_MACRO_STATIC([ # Code coverage # # Optional: # - CODE_COVERAGE_DIRECTORY: Top-level directory for code coverage reporting. # Multiple directories may be specified, separated by whitespace. # (Default: \$(top_builddir)) # - CODE_COVERAGE_OUTPUT_FILE: Filename and path for the .info file generated # by lcov for code coverage. (Default: # \$(PACKAGE_NAME)-\$(PACKAGE_VERSION)-coverage.info) # - CODE_COVERAGE_OUTPUT_DIRECTORY: Directory for generated code coverage # reports to be created. (Default: # \$(PACKAGE_NAME)-\$(PACKAGE_VERSION)-coverage) # - CODE_COVERAGE_BRANCH_COVERAGE: Set to 1 to enforce branch coverage, # set to 0 to disable it and leave empty to stay with the default. # (Default: empty) # - CODE_COVERAGE_LCOV_SHOPTS_DEFAULT: Extra options shared between both lcov # instances. (Default: based on $CODE_COVERAGE_BRANCH_COVERAGE) # - CODE_COVERAGE_LCOV_SHOPTS: Extra options to shared between both lcov # instances. (Default: $CODE_COVERAGE_LCOV_SHOPTS_DEFAULT) # - CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH: --gcov-tool pathtogcov # - CODE_COVERAGE_LCOV_OPTIONS_DEFAULT: Extra options to pass to the # collecting lcov instance. (Default: $CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH) # - CODE_COVERAGE_LCOV_OPTIONS: Extra options to pass to the collecting lcov # instance. (Default: $CODE_COVERAGE_LCOV_OPTIONS_DEFAULT) # - CODE_COVERAGE_LCOV_RMOPTS_DEFAULT: Extra options to pass to the filtering # lcov instance. (Default: empty) # - CODE_COVERAGE_LCOV_RMOPTS: Extra options to pass to the filtering lcov # instance. (Default: $CODE_COVERAGE_LCOV_RMOPTS_DEFAULT) # - CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT: Extra options to pass to the # genhtml instance. (Default: based on $CODE_COVERAGE_BRANCH_COVERAGE) # - CODE_COVERAGE_GENHTML_OPTIONS: Extra options to pass to the genhtml # instance. (Default: $CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT) # - CODE_COVERAGE_IGNORE_PATTERN: Extra glob pattern of files to ignore # # The generated report will be titled using the \$(PACKAGE_NAME) and # \$(PACKAGE_VERSION). In order to add the current git hash to the title, # use the git-version-gen script, available online. # Optional variables # run only on top dir if CODE_COVERAGE_ENABLED ifeq (\$(abs_builddir), \$(abs_top_builddir)) CODE_COVERAGE_DIRECTORY ?= \$(top_builddir) CODE_COVERAGE_OUTPUT_FILE ?= \$(PACKAGE_NAME)-\$(PACKAGE_VERSION)-coverage.info CODE_COVERAGE_OUTPUT_DIRECTORY ?= \$(PACKAGE_NAME)-\$(PACKAGE_VERSION)-coverage CODE_COVERAGE_BRANCH_COVERAGE ?= CODE_COVERAGE_LCOV_SHOPTS_DEFAULT ?= \$(if \$(CODE_COVERAGE_BRANCH_COVERAGE),\ --rc lcov_branch_coverage=\$(CODE_COVERAGE_BRANCH_COVERAGE)) CODE_COVERAGE_LCOV_SHOPTS ?= \$(CODE_COVERAGE_LCOV_SHOPTS_DEFAULT) CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH ?= --gcov-tool \"\$(GCOV)\" CODE_COVERAGE_LCOV_OPTIONS_DEFAULT ?= \$(CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH) CODE_COVERAGE_LCOV_OPTIONS ?= \$(CODE_COVERAGE_LCOV_OPTIONS_DEFAULT) CODE_COVERAGE_LCOV_RMOPTS_DEFAULT ?= CODE_COVERAGE_LCOV_RMOPTS ?= \$(CODE_COVERAGE_LCOV_RMOPTS_DEFAULT) CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT ?=\ \$(if \$(CODE_COVERAGE_BRANCH_COVERAGE),\ --rc genhtml_branch_coverage=\$(CODE_COVERAGE_BRANCH_COVERAGE)) CODE_COVERAGE_GENHTML_OPTIONS ?= \$(CODE_COVERAGE_GENHTML_OPTIONS_DEFAULT) CODE_COVERAGE_IGNORE_PATTERN ?= GITIGNOREFILES = \$(GITIGNOREFILES) \$(CODE_COVERAGE_OUTPUT_FILE) \$(CODE_COVERAGE_OUTPUT_DIRECTORY) code_coverage_v_lcov_cap = \$(code_coverage_v_lcov_cap_\$(V)) code_coverage_v_lcov_cap_ = \$(code_coverage_v_lcov_cap_\$(AM_DEFAULT_VERBOSITY)) code_coverage_v_lcov_cap_0 = @echo \" LCOV --capture\" \$(CODE_COVERAGE_OUTPUT_FILE); code_coverage_v_lcov_ign = \$(code_coverage_v_lcov_ign_\$(V)) code_coverage_v_lcov_ign_ = \$(code_coverage_v_lcov_ign_\$(AM_DEFAULT_VERBOSITY)) code_coverage_v_lcov_ign_0 = @echo \" LCOV --remove /tmp/*\" \$(CODE_COVERAGE_IGNORE_PATTERN); code_coverage_v_genhtml = \$(code_coverage_v_genhtml_\$(V)) code_coverage_v_genhtml_ = \$(code_coverage_v_genhtml_\$(AM_DEFAULT_VERBOSITY)) code_coverage_v_genhtml_0 = @echo \" GEN \" \"\$(CODE_COVERAGE_OUTPUT_DIRECTORY)\"; code_coverage_quiet = \$(code_coverage_quiet_\$(V)) code_coverage_quiet_ = \$(code_coverage_quiet_\$(AM_DEFAULT_VERBOSITY)) code_coverage_quiet_0 = --quiet # sanitizes the test-name: replaces with underscores: dashes and dots code_coverage_sanitize = \$(subst -,_,\$(subst .,_,\$(1))) # Use recursive makes in order to ignore errors during check check-code-coverage: -\$(AM_V_at)\$(MAKE) \$(AM_MAKEFLAGS) -k check \$(AM_V_at)\$(MAKE) \$(AM_MAKEFLAGS) code-coverage-capture # Capture code coverage data code-coverage-capture: code-coverage-capture-hook \$(code_coverage_v_lcov_cap)\$(LCOV) \$(code_coverage_quiet) \$(addprefix --directory ,\$(CODE_COVERAGE_DIRECTORY)) --capture --output-file \"\$(CODE_COVERAGE_OUTPUT_FILE).tmp\" --test-name \"\$(call code_coverage_sanitize,\$(PACKAGE_NAME)-\$(PACKAGE_VERSION))\" --no-checksum --compat-libtool \$(CODE_COVERAGE_LCOV_SHOPTS) \$(CODE_COVERAGE_LCOV_OPTIONS) \$(code_coverage_v_lcov_ign)\$(LCOV) \$(code_coverage_quiet) \$(addprefix --directory ,\$(CODE_COVERAGE_DIRECTORY)) --remove \"\$(CODE_COVERAGE_OUTPUT_FILE).tmp\" \"/tmp/*\" \$(CODE_COVERAGE_IGNORE_PATTERN) --output-file \"\$(CODE_COVERAGE_OUTPUT_FILE)\" \$(CODE_COVERAGE_LCOV_SHOPTS) \$(CODE_COVERAGE_LCOV_RMOPTS) -@rm -f \"\$(CODE_COVERAGE_OUTPUT_FILE).tmp\" \$(code_coverage_v_genhtml)LANG=C \$(GENHTML) \$(code_coverage_quiet) \$(addprefix --prefix ,\$(CODE_COVERAGE_DIRECTORY)) --output-directory \"\$(CODE_COVERAGE_OUTPUT_DIRECTORY)\" --title \"\$(PACKAGE_NAME)-\$(PACKAGE_VERSION) Code Coverage\" --legend --show-details \"\$(CODE_COVERAGE_OUTPUT_FILE)\" \$(CODE_COVERAGE_GENHTML_OPTIONS) @echo \"file://\$(abs_builddir)/\$(CODE_COVERAGE_OUTPUT_DIRECTORY)/index.html\" code-coverage-clean: -\$(LCOV) --directory \$(top_builddir) -z -rm -rf \"\$(CODE_COVERAGE_OUTPUT_FILE)\" \"\$(CODE_COVERAGE_OUTPUT_FILE).tmp\" \"\$(CODE_COVERAGE_OUTPUT_DIRECTORY)\" -find . \\( -name \"*.gcda\" -o -name \"*.gcno\" -o -name \"*.gcov\" \\) -delete code-coverage-dist-clean: A][M_DISTCHECK_CONFIGURE_FLAGS = \$(A][M_DISTCHECK_CONFIGURE_FLAGS) --disable-code-coverage else # ifneq (\$(abs_builddir), \$(abs_top_builddir)) check-code-coverage: code-coverage-capture: code-coverage-capture-hook code-coverage-clean: code-coverage-dist-clean: endif # ifeq (\$(abs_builddir), \$(abs_top_builddir)) else #! CODE_COVERAGE_ENABLED # Use recursive makes in order to ignore errors during check check-code-coverage: @echo \"Need to reconfigure with --enable-code-coverage\" # Capture code coverage data code-coverage-capture: code-coverage-capture-hook @echo \"Need to reconfigure with --enable-code-coverage\" code-coverage-clean: code-coverage-dist-clean: endif #CODE_COVERAGE_ENABLED # Hook rule executed before code-coverage-capture, overridable by the user code-coverage-capture-hook: .PHONY: check-code-coverage code-coverage-capture code-coverage-dist-clean code-coverage-clean code-coverage-capture-hook ]) ]) AC_DEFUN([_AX_CODE_COVERAGE_ENABLED],[ AX_CHECK_GNU_MAKE([],[AC_MSG_ERROR([not using GNU make that is needed for coverage])]) AC_REQUIRE([AX_ADD_AM_MACRO_STATIC]) # check for gcov AC_CHECK_TOOL([GCOV], [$_AX_CODE_COVERAGE_GCOV_PROG_WITH], [:]) AS_IF([test "X$GCOV" = "X:"], [AC_MSG_ERROR([gcov is needed to do coverage])]) AC_SUBST([GCOV]) dnl Check if gcc is being used AS_IF([ test "$GCC" = "no" ], [ AC_MSG_ERROR([not compiling with gcc, which is required for gcov code coverage]) ]) AC_CHECK_PROG([LCOV], [lcov], [lcov]) AC_CHECK_PROG([GENHTML], [genhtml], [genhtml]) AS_IF([ test x"$LCOV" = x ], [ AC_MSG_ERROR([To enable code coverage reporting you must have lcov installed]) ]) AS_IF([ test x"$GENHTML" = x ], [ AC_MSG_ERROR([Could not find genhtml from the lcov package]) ]) dnl Build the code coverage flags dnl Define CODE_COVERAGE_LDFLAGS for backwards compatibility CODE_COVERAGE_CPPFLAGS="-DNDEBUG" CODE_COVERAGE_CFLAGS="-O0 -g -fprofile-arcs -ftest-coverage" CODE_COVERAGE_CXXFLAGS="-O0 -g -fprofile-arcs -ftest-coverage" CODE_COVERAGE_LIBS="-lgcov" AC_SUBST([CODE_COVERAGE_CPPFLAGS]) AC_SUBST([CODE_COVERAGE_CFLAGS]) AC_SUBST([CODE_COVERAGE_CXXFLAGS]) AC_SUBST([CODE_COVERAGE_LIBS]) ]) AC_DEFUN([AX_CODE_COVERAGE],[ dnl Check for --enable-code-coverage # allow to override gcov location AC_ARG_WITH([gcov], [AS_HELP_STRING([--with-gcov[=GCOV]], [use given GCOV for coverage (GCOV=gcov).])], [_AX_CODE_COVERAGE_GCOV_PROG_WITH=$with_gcov], [_AX_CODE_COVERAGE_GCOV_PROG_WITH=gcov]) AC_MSG_CHECKING([whether to build with code coverage support]) AC_ARG_ENABLE([code-coverage], AS_HELP_STRING([--enable-code-coverage], [Whether to enable code coverage support]),, enable_code_coverage=no) AM_CONDITIONAL([CODE_COVERAGE_ENABLED], [test "x$enable_code_coverage" = xyes]) AC_SUBST([CODE_COVERAGE_ENABLED], [$enable_code_coverage]) AC_MSG_RESULT($enable_code_coverage) AS_IF([ test "x$enable_code_coverage" = xyes ], [ _AX_CODE_COVERAGE_ENABLED ]) _AX_CODE_COVERAGE_RULES ]) # =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_file_escapes.html # =========================================================================== # # SYNOPSIS # # AX_FILE_ESCAPES # # DESCRIPTION # # Writes the specified data to the specified file. # # LICENSE # # Copyright (c) 2008 Tom Howard # # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. This file is offered as-is, without any # warranty. #serial 8 AC_DEFUN([AX_FILE_ESCAPES],[ AX_DOLLAR="\$" AX_SRB="\\135" AX_SLB="\\133" AX_BS="\\\\" AX_DQ="\"" ]) dnl Check for __builtin_expect. dnl Copyright 2016-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Paul Eggert. AC_DEFUN([gl___BUILTIN_EXPECT], [ AC_CACHE_CHECK([for __builtin_expect], [gl_cv___builtin_expect], [AC_LINK_IFELSE( [AC_LANG_SOURCE([[ int main (int argc, char **argv) { argc = __builtin_expect (argc, 100); return argv[argc != 100][0]; }]])], [gl_cv___builtin_expect=yes], [AC_LINK_IFELSE( [AC_LANG_SOURCE([[ #include int main (int argc, char **argv) { argc = __builtin_expect (argc, 100); return argv[argc != 100][0]; }]])], [gl_cv___builtin_expect="in "], [gl_cv___builtin_expect=no])])]) if test "$gl_cv___builtin_expect" = yes; then AC_DEFINE([HAVE___BUILTIN_EXPECT], [1]) elif test "$gl_cv___builtin_expect" = "in "; then AC_DEFINE([HAVE___BUILTIN_EXPECT], [2]) fi AH_VERBATIM([HAVE___BUILTIN_EXPECT], [/* Define to 1 if the compiler supports __builtin_expect, and to 2 if does. */ #undef HAVE___BUILTIN_EXPECT #ifndef HAVE___BUILTIN_EXPECT # define __builtin_expect(e, c) (e) #elif HAVE___BUILTIN_EXPECT == 2 # include #endif ]) ]) # byteswap.m4 serial 4 dnl Copyright (C) 2005, 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Oskar Liljeblad. AC_DEFUN([gl_BYTESWAP], [ dnl Prerequisites of lib/byteswap.in.h. AC_CHECK_HEADERS([byteswap.h], [ BYTESWAP_H='' ], [ BYTESWAP_H='byteswap.h' ]) AC_SUBST([BYTESWAP_H]) AM_CONDITIONAL([GL_GENERATE_BYTESWAP_H], [test -n "$BYTESWAP_H"]) ]) # close.m4 serial 9 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_CLOSE], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) m4_ifdef([gl_MSVC_INVAL], [ AC_REQUIRE([gl_MSVC_INVAL]) if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then REPLACE_CLOSE=1 fi ]) m4_ifdef([gl_PREREQ_SYS_H_WINSOCK2], [ gl_PREREQ_SYS_H_WINSOCK2 if test $UNISTD_H_HAVE_WINSOCK2_H = 1; then dnl Even if the 'socket' module is not used here, another part of the dnl application may use it and pass file descriptors that refer to dnl sockets to the close() function. So enable the support for sockets. REPLACE_CLOSE=1 fi ]) dnl Replace close() for supporting the gnulib-defined fchdir() function, dnl to keep fchdir's bookkeeping up-to-date. m4_ifdef([gl_FUNC_FCHDIR], [ if test $REPLACE_CLOSE = 0; then gl_TEST_FCHDIR if test $HAVE_FCHDIR = 0; then REPLACE_CLOSE=1 fi fi ]) ]) # codeset.m4 serial 5 (gettext-0.18.2) dnl Copyright (C) 2000-2002, 2006, 2008-2014, 2016, 2019-2020 Free Software dnl Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. AC_DEFUN([AM_LANGINFO_CODESET], [ AC_CACHE_CHECK([for nl_langinfo and CODESET], [am_cv_langinfo_codeset], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[char* cs = nl_langinfo(CODESET); return !cs;]])], [am_cv_langinfo_codeset=yes], [am_cv_langinfo_codeset=no]) ]) if test $am_cv_langinfo_codeset = yes; then AC_DEFINE([HAVE_LANGINFO_CODESET], [1], [Define if you have and nl_langinfo(CODESET).]) fi ]) # ctype_h.m4 serial 6 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_CTYPE_H], [ AC_REQUIRE([gl_CTYPE_H_DEFAULTS]) dnl is always overridden, because of GNULIB_POSIXCHECK. gl_NEXT_HEADERS([ctype.h]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include ]], [isblank]) ]) AC_DEFUN([gl_CTYPE_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_CTYPE_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) ]) AC_DEFUN([gl_CTYPE_H_DEFAULTS], [ GNULIB_ISBLANK=0; AC_SUBST([GNULIB_ISBLANK]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_ISBLANK=1; AC_SUBST([HAVE_ISBLANK]) ]) #serial 25 dnl Copyright (C) 2002, 2005, 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_DUP2], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) m4_ifdef([gl_FUNC_DUP2_OBSOLETE], [ AC_CHECK_FUNCS_ONCE([dup2]) if test $ac_cv_func_dup2 = no; then HAVE_DUP2=0 fi ], [ AC_DEFINE([HAVE_DUP2], [1], [Define to 1 if you have the 'dup2' function.]) ]) if test $HAVE_DUP2 = 1; then AC_CACHE_CHECK([whether dup2 works], [gl_cv_func_dup2_works], [AC_RUN_IFELSE([ AC_LANG_PROGRAM( [[#include #include #include #include #include #ifndef RLIM_SAVED_CUR # define RLIM_SAVED_CUR RLIM_INFINITY #endif #ifndef RLIM_SAVED_MAX # define RLIM_SAVED_MAX RLIM_INFINITY #endif ]], [[int result = 0; int bad_fd = INT_MAX; struct rlimit rlim; if (getrlimit (RLIMIT_NOFILE, &rlim) == 0 && 0 <= rlim.rlim_cur && rlim.rlim_cur <= INT_MAX && rlim.rlim_cur != RLIM_INFINITY && rlim.rlim_cur != RLIM_SAVED_MAX && rlim.rlim_cur != RLIM_SAVED_CUR) bad_fd = rlim.rlim_cur; #ifdef FD_CLOEXEC if (fcntl (1, F_SETFD, FD_CLOEXEC) == -1) result |= 1; #endif if (dup2 (1, 1) != 1) result |= 2; #ifdef FD_CLOEXEC if (fcntl (1, F_GETFD) != FD_CLOEXEC) result |= 4; #endif close (0); if (dup2 (0, 0) != -1) result |= 8; /* Many gnulib modules require POSIX conformance of EBADF. */ if (dup2 (2, bad_fd) == -1 && errno != EBADF) result |= 16; /* Flush out some cygwin core dumps. */ if (dup2 (2, -1) != -1 || errno != EBADF) result |= 32; dup2 (2, 255); dup2 (2, 256); /* On OS/2 kLIBC, dup2() does not work on a directory fd. */ { int fd = open (".", O_RDONLY); if (fd == -1) result |= 64; else if (dup2 (fd, fd + 1) == -1) result |= 128; close (fd); } return result;]]) ], [gl_cv_func_dup2_works=yes], [gl_cv_func_dup2_works=no], [case "$host_os" in mingw*) # on this platform, dup2 always returns 0 for success gl_cv_func_dup2_works="guessing no" ;; cygwin*) # on cygwin 1.5.x, dup2(1,1) returns 0 gl_cv_func_dup2_works="guessing no" ;; aix* | freebsd*) # on AIX 7.1 and FreeBSD 6.1, dup2 (1,toobig) gives EMFILE, # not EBADF. gl_cv_func_dup2_works="guessing no" ;; haiku*) # on Haiku alpha 2, dup2(1, 1) resets FD_CLOEXEC. gl_cv_func_dup2_works="guessing no" ;; *-android*) # implemented using dup3(), which fails if oldfd == newfd gl_cv_func_dup2_works="guessing no" ;; os2*) # on OS/2 kLIBC, dup2() does not work on a directory fd. gl_cv_func_dup2_works="guessing no" ;; *) gl_cv_func_dup2_works="guessing yes" ;; esac]) ]) case "$gl_cv_func_dup2_works" in *yes) ;; *) REPLACE_DUP2=1 AC_CHECK_FUNCS([setdtablesize]) ;; esac fi dnl Replace dup2() for supporting the gnulib-defined fchdir() function, dnl to keep fchdir's bookkeeping up-to-date. m4_ifdef([gl_FUNC_FCHDIR], [ gl_TEST_FCHDIR if test $HAVE_FCHDIR = 0; then if test $HAVE_DUP2 = 1; then REPLACE_DUP2=1 fi fi ]) ]) # Prerequisites of lib/dup2.c. AC_DEFUN([gl_PREREQ_DUP2], []) # eealloc.m4 serial 3 dnl Copyright (C) 2003, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_EEALLOC], [ AC_REQUIRE([gl_EEMALLOC]) AC_REQUIRE([gl_EEREALLOC]) ]) AC_DEFUN([gl_EEMALLOC], [ _AC_FUNC_MALLOC_IF( [gl_cv_func_malloc_0_nonnull=1], [gl_cv_func_malloc_0_nonnull=0]) AC_DEFINE_UNQUOTED([MALLOC_0_IS_NONNULL], [$gl_cv_func_malloc_0_nonnull], [If malloc(0) is != NULL, define this to 1. Otherwise define this to 0.]) ]) AC_DEFUN([gl_EEREALLOC], [ _AC_FUNC_REALLOC_IF( [gl_cv_func_realloc_0_nonnull=1], [gl_cv_func_realloc_0_nonnull=0]) AC_DEFINE_UNQUOTED([REALLOC_0_IS_NONNULL], [$gl_cv_func_realloc_0_nonnull], [If realloc(NULL,0) is != NULL, define this to 1. Otherwise define this to 0.]) ]) # environ.m4 serial 7 dnl Copyright (C) 2001-2004, 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN_ONCE([gl_ENVIRON], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl Persuade glibc to declare environ. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_HEADERS_ONCE([unistd.h]) gt_CHECK_VAR_DECL( [#if HAVE_UNISTD_H #include #endif /* mingw, BeOS, Haiku declare environ in , not in . */ #include ], [environ]) if test $gt_cv_var_environ_declaration != yes; then HAVE_DECL_ENVIRON=0 fi ]) # Check if a variable is properly declared. # gt_CHECK_VAR_DECL(includes,variable) AC_DEFUN([gt_CHECK_VAR_DECL], [ define([gt_cv_var], [gt_cv_var_]$2[_declaration]) AC_CACHE_CHECK([if $2 is properly declared], [gt_cv_var], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[$1 extern struct { int foo; } $2;]], [[$2.foo = 1;]])], [gt_cv_var=no], [gt_cv_var=yes])]) if test $gt_cv_var = yes; then AC_DEFINE([HAVE_]m4_translit($2, [a-z], [A-Z])[_DECL], 1, [Define if you have the declaration of $2.]) fi undefine([gt_cv_var]) ]) # errno_h.m4 serial 13 dnl Copyright (C) 2004, 2006, 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_PREREQ([2.61]) AC_DEFUN_ONCE([gl_HEADER_ERRNO_H], [ AC_REQUIRE([AC_PROG_CC]) AC_CACHE_CHECK([for complete errno.h], [gl_cv_header_errno_h_complete], [ AC_EGREP_CPP([booboo],[ #include #if !defined ETXTBSY booboo #endif #if !defined ENOMSG booboo #endif #if !defined EIDRM booboo #endif #if !defined ENOLINK booboo #endif #if !defined EPROTO booboo #endif #if !defined EMULTIHOP booboo #endif #if !defined EBADMSG booboo #endif #if !defined EOVERFLOW booboo #endif #if !defined ENOTSUP booboo #endif #if !defined ENETRESET booboo #endif #if !defined ECONNABORTED booboo #endif #if !defined ESTALE booboo #endif #if !defined EDQUOT booboo #endif #if !defined ECANCELED booboo #endif #if !defined EOWNERDEAD booboo #endif #if !defined ENOTRECOVERABLE booboo #endif #if !defined EILSEQ booboo #endif ], [gl_cv_header_errno_h_complete=no], [gl_cv_header_errno_h_complete=yes]) ]) if test $gl_cv_header_errno_h_complete = yes; then ERRNO_H='' else gl_NEXT_HEADERS([errno.h]) ERRNO_H='errno.h' fi AC_SUBST([ERRNO_H]) AM_CONDITIONAL([GL_GENERATE_ERRNO_H], [test -n "$ERRNO_H"]) gl_REPLACE_ERRNO_VALUE([EMULTIHOP]) gl_REPLACE_ERRNO_VALUE([ENOLINK]) gl_REPLACE_ERRNO_VALUE([EOVERFLOW]) ]) # Assuming $1 = EOVERFLOW. # The EOVERFLOW errno value ought to be defined in , according to # POSIX. But some systems (like OpenBSD 4.0 or AIX 3) don't define it, and # some systems (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined. # Check for the value of EOVERFLOW. # Set the variables EOVERFLOW_HIDDEN and EOVERFLOW_VALUE. AC_DEFUN([gl_REPLACE_ERRNO_VALUE], [ if test -n "$ERRNO_H"; then AC_CACHE_CHECK([for ]$1[ value], [gl_cv_header_errno_h_]$1, [ AC_EGREP_CPP([yes],[ #include #ifdef ]$1[ yes #endif ], [gl_cv_header_errno_h_]$1[=yes], [gl_cv_header_errno_h_]$1[=no]) if test $gl_cv_header_errno_h_]$1[ = no; then AC_EGREP_CPP([yes],[ #define _XOPEN_SOURCE_EXTENDED 1 #include #ifdef ]$1[ yes #endif ], [gl_cv_header_errno_h_]$1[=hidden]) if test $gl_cv_header_errno_h_]$1[ = hidden; then dnl The macro exists but is hidden. dnl Define it to the same value. AC_COMPUTE_INT([gl_cv_header_errno_h_]$1, $1, [ #define _XOPEN_SOURCE_EXTENDED 1 #include /* The following two lines are a workaround against an autoconf-2.52 bug. */ #include #include ]) fi fi ]) case $gl_cv_header_errno_h_]$1[ in yes | no) ]$1[_HIDDEN=0; ]$1[_VALUE= ;; *) ]$1[_HIDDEN=1; ]$1[_VALUE="$gl_cv_header_errno_h_]$1[" ;; esac AC_SUBST($1[_HIDDEN]) AC_SUBST($1[_VALUE]) fi ]) dnl Copyright 2017-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_EXPLICIT_BZERO], [ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) dnl Persuade glibc to declare explicit_bzero. AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([explicit_bzero]) if test $ac_cv_func_explicit_bzero = no; then HAVE_EXPLICIT_BZERO=0 fi ]) AC_DEFUN([gl_PREREQ_EXPLICIT_BZERO], [ AC_CHECK_FUNCS([explicit_memset]) AC_CHECK_FUNCS_ONCE([memset_s]) ]) # exponentd.m4 serial 3 dnl Copyright (C) 2007-2008, 2010-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_DOUBLE_EXPONENT_LOCATION], [ AC_CACHE_CHECK([where to find the exponent in a 'double'], [gl_cv_cc_double_expbit0], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include #include #define NWORDS \ ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int)) typedef union { double value; unsigned int word[NWORDS]; } memory_double; static unsigned int ored_words[NWORDS]; static unsigned int anded_words[NWORDS]; static void add_to_ored_words (double x) { memory_double m; size_t i; /* Clear it first, in case sizeof (double) < sizeof (memory_double). */ memset (&m, 0, sizeof (memory_double)); m.value = x; for (i = 0; i < NWORDS; i++) { ored_words[i] |= m.word[i]; anded_words[i] &= m.word[i]; } } int main () { size_t j; FILE *fp = fopen ("conftest.out", "w"); if (fp == NULL) return 1; for (j = 0; j < NWORDS; j++) anded_words[j] = ~ (unsigned int) 0; add_to_ored_words (0.25); add_to_ored_words (0.5); add_to_ored_words (1.0); add_to_ored_words (2.0); add_to_ored_words (4.0); /* Remove bits that are common (e.g. if representation of the first mantissa bit is explicit). */ for (j = 0; j < NWORDS; j++) ored_words[j] &= ~anded_words[j]; /* Now find the nonzero word. */ for (j = 0; j < NWORDS; j++) if (ored_words[j] != 0) break; if (j < NWORDS) { size_t i; for (i = j + 1; i < NWORDS; i++) if (ored_words[i] != 0) { fprintf (fp, "unknown"); return (fclose (fp) != 0); } for (i = 0; ; i++) if ((ored_words[j] >> i) & 1) { fprintf (fp, "word %d bit %d", (int) j, (int) i); return (fclose (fp) != 0); } } fprintf (fp, "unknown"); return (fclose (fp) != 0); } ]])], [gl_cv_cc_double_expbit0=`cat conftest.out`], [gl_cv_cc_double_expbit0="unknown"], [ dnl On ARM, there are two 'double' floating-point formats, used by dnl different sets of instructions: The older FPA instructions assume dnl that they are stored in big-endian word order, while the words dnl (like integer types) are stored in little-endian byte order. dnl The newer VFP instructions assume little-endian order dnl consistently. AC_EGREP_CPP([mixed_endianness], [ #if defined arm || defined __arm || defined __arm__ mixed_endianness #endif ], [gl_cv_cc_double_expbit0="unknown"], [ pushdef([AC_MSG_CHECKING],[:])dnl pushdef([AC_MSG_RESULT],[:])dnl pushdef([AC_MSG_RESULT_UNQUOTED],[:])dnl AC_C_BIGENDIAN( [gl_cv_cc_double_expbit0="word 0 bit 20"], [gl_cv_cc_double_expbit0="word 1 bit 20"], [gl_cv_cc_double_expbit0="unknown"]) popdef([AC_MSG_RESULT_UNQUOTED])dnl popdef([AC_MSG_RESULT])dnl popdef([AC_MSG_CHECKING])dnl ]) ]) rm -f conftest.out ]) case "$gl_cv_cc_double_expbit0" in word*bit*) word=`echo "$gl_cv_cc_double_expbit0" | sed -e 's/word //' -e 's/ bit.*//'` bit=`echo "$gl_cv_cc_double_expbit0" | sed -e 's/word.*bit //'` AC_DEFINE_UNQUOTED([DBL_EXPBIT0_WORD], [$word], [Define as the word index where to find the exponent of 'double'.]) AC_DEFINE_UNQUOTED([DBL_EXPBIT0_BIT], [$bit], [Define as the bit index in the word where to find bit 0 of the exponent of 'double'.]) ;; esac ]) # serial 18 -*- Autoconf -*- # Enable extensions on systems that normally disable them. # Copyright (C) 2003, 2006-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from git # Autoconf. Perhaps we can remove this once we can assume Autoconf # 2.70 or later everywhere, but since Autoconf mutates rapidly # enough in this area it's likely we'll need to redefine # AC_USE_SYSTEM_EXTENSIONS for quite some time. # If autoconf reports a warning # warning: AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS # or warning: AC_RUN_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS # the fix is # 1) to ensure that AC_USE_SYSTEM_EXTENSIONS is never directly invoked # but always AC_REQUIREd, # 2) to ensure that for each occurrence of # AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) # or # AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) # the corresponding gnulib module description has 'extensions' among # its dependencies. This will ensure that the gl_USE_SYSTEM_EXTENSIONS # invocation occurs in gl_EARLY, not in gl_INIT. # AC_USE_SYSTEM_EXTENSIONS # ------------------------ # Enable extensions on systems that normally disable them, # typically due to standards-conformance issues. # # Remember that #undef in AH_VERBATIM gets replaced with #define by # AC_DEFINE. The goal here is to define all known feature-enabling # macros, then, if reports of conflicts are made, disable macros that # cause problems on some platforms (such as __EXTENSIONS__). AC_DEFUN_ONCE([AC_USE_SYSTEM_EXTENSIONS], [AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl AC_BEFORE([$0], [AC_RUN_IFELSE])dnl AC_CHECK_HEADER([minix/config.h], [MINIX=yes], [MINIX=]) if test "$MINIX" = yes; then AC_DEFINE([_POSIX_SOURCE], [1], [Define to 1 if you need to in order for 'stat' and other things to work.]) AC_DEFINE([_POSIX_1_SOURCE], [2], [Define to 2 if the system does not provide POSIX.1 features except with this defined.]) AC_DEFINE([_MINIX], [1], [Define to 1 if on MINIX.]) AC_DEFINE([_NETBSD_SOURCE], [1], [Define to 1 to make NetBSD features available. MINIX 3 needs this.]) fi dnl Use a different key than __EXTENSIONS__, as that name broke existing dnl configure.ac when using autoheader 2.62. AH_VERBATIM([USE_SYSTEM_EXTENSIONS], [/* Enable extensions on AIX 3, Interix. */ #ifndef _ALL_SOURCE # undef _ALL_SOURCE #endif /* Enable general extensions on macOS. */ #ifndef _DARWIN_C_SOURCE # undef _DARWIN_C_SOURCE #endif /* Enable GNU extensions on systems that have them. */ #ifndef _GNU_SOURCE # undef _GNU_SOURCE #endif /* Enable NetBSD extensions on NetBSD. */ #ifndef _NETBSD_SOURCE # undef _NETBSD_SOURCE #endif /* Enable OpenBSD extensions on NetBSD. */ #ifndef _OPENBSD_SOURCE # undef _OPENBSD_SOURCE #endif /* Enable threading extensions on Solaris. */ #ifndef _POSIX_PTHREAD_SEMANTICS # undef _POSIX_PTHREAD_SEMANTICS #endif /* Enable extensions specified by ISO/IEC TS 18661-5:2014. */ #ifndef __STDC_WANT_IEC_60559_ATTRIBS_EXT__ # undef __STDC_WANT_IEC_60559_ATTRIBS_EXT__ #endif /* Enable extensions specified by ISO/IEC TS 18661-1:2014. */ #ifndef __STDC_WANT_IEC_60559_BFP_EXT__ # undef __STDC_WANT_IEC_60559_BFP_EXT__ #endif /* Enable extensions specified by ISO/IEC TS 18661-2:2015. */ #ifndef __STDC_WANT_IEC_60559_DFP_EXT__ # undef __STDC_WANT_IEC_60559_DFP_EXT__ #endif /* Enable extensions specified by ISO/IEC TS 18661-4:2015. */ #ifndef __STDC_WANT_IEC_60559_FUNCS_EXT__ # undef __STDC_WANT_IEC_60559_FUNCS_EXT__ #endif /* Enable extensions specified by ISO/IEC TS 18661-3:2015. */ #ifndef __STDC_WANT_IEC_60559_TYPES_EXT__ # undef __STDC_WANT_IEC_60559_TYPES_EXT__ #endif /* Enable extensions specified by ISO/IEC TR 24731-2:2010. */ #ifndef __STDC_WANT_LIB_EXT2__ # undef __STDC_WANT_LIB_EXT2__ #endif /* Enable extensions specified by ISO/IEC 24747:2009. */ #ifndef __STDC_WANT_MATH_SPEC_FUNCS__ # undef __STDC_WANT_MATH_SPEC_FUNCS__ #endif /* Enable extensions on HP NonStop. */ #ifndef _TANDEM_SOURCE # undef _TANDEM_SOURCE #endif /* Enable X/Open extensions if necessary. HP-UX 11.11 defines mbstate_t only if _XOPEN_SOURCE is defined to 500, regardless of whether compiling with -Ae or -D_HPUX_SOURCE=1. */ #ifndef _XOPEN_SOURCE # undef _XOPEN_SOURCE #endif /* Enable X/Open compliant socket functions that do not require linking with -lxnet on HP-UX 11.11. */ #ifndef _HPUX_ALT_XOPEN_SOCKET_API # undef _HPUX_ALT_XOPEN_SOCKET_API #endif /* Enable general extensions on Solaris. */ #ifndef __EXTENSIONS__ # undef __EXTENSIONS__ #endif ]) AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__], [ac_cv_safe_to_define___extensions__], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ # define __EXTENSIONS__ 1 ]AC_INCLUDES_DEFAULT])], [ac_cv_safe_to_define___extensions__=yes], [ac_cv_safe_to_define___extensions__=no])]) test $ac_cv_safe_to_define___extensions__ = yes && AC_DEFINE([__EXTENSIONS__]) AC_DEFINE([_ALL_SOURCE]) AC_DEFINE([_DARWIN_C_SOURCE]) AC_DEFINE([_GNU_SOURCE]) AC_DEFINE([_NETBSD_SOURCE]) AC_DEFINE([_OPENBSD_SOURCE]) AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) AC_DEFINE([__STDC_WANT_IEC_60559_ATTRIBS_EXT__]) AC_DEFINE([__STDC_WANT_IEC_60559_BFP_EXT__]) AC_DEFINE([__STDC_WANT_IEC_60559_DFP_EXT__]) AC_DEFINE([__STDC_WANT_IEC_60559_FUNCS_EXT__]) AC_DEFINE([__STDC_WANT_IEC_60559_TYPES_EXT__]) AC_DEFINE([__STDC_WANT_LIB_EXT2__]) AC_DEFINE([__STDC_WANT_MATH_SPEC_FUNCS__]) AC_DEFINE([_TANDEM_SOURCE]) AC_CACHE_CHECK([whether _XOPEN_SOURCE should be defined], [ac_cv_should_define__xopen_source], [ac_cv_should_define__xopen_source=no AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ #include mbstate_t x;]])], [], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ #define _XOPEN_SOURCE 500 #include mbstate_t x;]])], [ac_cv_should_define__xopen_source=yes])])]) test $ac_cv_should_define__xopen_source = yes && AC_DEFINE([_XOPEN_SOURCE], [500]) AC_DEFINE([_HPUX_ALT_XOPEN_SOCKET_API]) ])# AC_USE_SYSTEM_EXTENSIONS # gl_USE_SYSTEM_EXTENSIONS # ------------------------ # Enable extensions on systems that normally disable them, # typically due to standards-conformance issues. AC_DEFUN_ONCE([gl_USE_SYSTEM_EXTENSIONS], [ dnl Require this macro before AC_USE_SYSTEM_EXTENSIONS. dnl gnulib does not need it. But if it gets required by third-party macros dnl after AC_USE_SYSTEM_EXTENSIONS is required, autoconf 2.62..2.63 emit a dnl warning: "AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS". dnl Note: We can do this only for one of the macros AC_AIX, AC_GNU_SOURCE, dnl AC_MINIX. If people still use AC_AIX or AC_MINIX, they are out of luck. AC_REQUIRE([AC_GNU_SOURCE]) AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) ]) dnl 'extern inline' a la ISO C99. dnl Copyright 2012-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_EXTERN_INLINE], [ AH_VERBATIM([extern_inline], [/* Please see the Gnulib manual for how to use these macros. Suppress extern inline with HP-UX cc, as it appears to be broken; see . Suppress extern inline with Sun C in standards-conformance mode, as it mishandles inline functions that call each other. E.g., for 'inline void f (void) { } inline void g (void) { f (); }', c99 incorrectly complains 'reference to static identifier "f" in extern inline function'. This bug was observed with Sun C 5.12 SunOS_i386 2011/11/16. Suppress extern inline (with or without __attribute__ ((__gnu_inline__))) on configurations that mistakenly use 'static inline' to implement functions or macros in standard C headers like . For example, if isdigit is mistakenly implemented via a static inline function, a program containing an extern inline function that calls isdigit may not work since the C standard prohibits extern inline functions from calling static functions (ISO C 99 section 6.7.4.(3). This bug is known to occur on: OS X 10.8 and earlier; see: https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html DragonFly; see http://muscles.dragonflybsd.org/bulk/clang-master-potential/20141111_102002/logs/ah-tty-0.3.12.log FreeBSD; see: https://lists.gnu.org/r/bug-gnulib/2014-07/msg00104.html OS X 10.9 has a macro __header_inline indicating the bug is fixed for C and for clang but remains for g++; see . Assume DragonFly and FreeBSD will be similar. GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99 inline semantics, unless -fgnu89-inline is used. It defines a macro __GNUC_STDC_INLINE__ to indicate this situation or a macro __GNUC_GNU_INLINE__ to indicate the opposite situation. GCC 4.2 with -std=c99 or -std=gnu99 implements the GNU C inline semantics but warns, unless -fgnu89-inline is used: warning: C99 inline functions are not supported; using GNU89 warning: to disable this warning use -fgnu89-inline or the gnu_inline function attribute It defines a macro __GNUC_GNU_INLINE__ to indicate this situation. */ #if (((defined __APPLE__ && defined __MACH__) \ || defined __DragonFly__ || defined __FreeBSD__) \ && (defined __header_inline \ ? (defined __cplusplus && defined __GNUC_STDC_INLINE__ \ && ! defined __clang__) \ : ((! defined _DONT_USE_CTYPE_INLINE_ \ && (defined __GNUC__ || defined __cplusplus)) \ || (defined _FORTIFY_SOURCE && 0 < _FORTIFY_SOURCE \ && defined __GNUC__ && ! defined __cplusplus)))) # define _GL_EXTERN_INLINE_STDHEADER_BUG #endif #if ((__GNUC__ \ ? defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \ : (199901L <= __STDC_VERSION__ \ && !defined __HP_cc \ && !defined __PGI \ && !(defined __SUNPRO_C && __STDC__))) \ && !defined _GL_EXTERN_INLINE_STDHEADER_BUG) # define _GL_INLINE inline # define _GL_EXTERN_INLINE extern inline # define _GL_EXTERN_INLINE_IN_USE #elif (2 < __GNUC__ + (7 <= __GNUC_MINOR__) && !defined __STRICT_ANSI__ \ && !defined _GL_EXTERN_INLINE_STDHEADER_BUG) # if defined __GNUC_GNU_INLINE__ && __GNUC_GNU_INLINE__ /* __gnu_inline__ suppresses a GCC 4.2 diagnostic. */ # define _GL_INLINE extern inline __attribute__ ((__gnu_inline__)) # else # define _GL_INLINE extern inline # endif # define _GL_EXTERN_INLINE extern # define _GL_EXTERN_INLINE_IN_USE #else # define _GL_INLINE static _GL_UNUSED # define _GL_EXTERN_INLINE static _GL_UNUSED #endif /* In GCC 4.6 (inclusive) to 5.1 (exclusive), suppress bogus "no previous prototype for 'FOO'" and "no previous declaration for 'FOO'" diagnostics, when FOO is an inline function in the header; see and . */ #if __GNUC__ == 4 && 6 <= __GNUC_MINOR__ # if defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ # define _GL_INLINE_HEADER_CONST_PRAGMA # else # define _GL_INLINE_HEADER_CONST_PRAGMA \ _Pragma ("GCC diagnostic ignored \"-Wsuggest-attribute=const\"") # endif # define _GL_INLINE_HEADER_BEGIN \ _Pragma ("GCC diagnostic push") \ _Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \ _Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"") \ _GL_INLINE_HEADER_CONST_PRAGMA # define _GL_INLINE_HEADER_END \ _Pragma ("GCC diagnostic pop") #else # define _GL_INLINE_HEADER_BEGIN # define _GL_INLINE_HEADER_END #endif]) ]) # fcntl-o.m4 serial 6 dnl Copyright (C) 2006, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Paul Eggert. AC_PREREQ([2.60]) # Test whether the flags O_NOATIME and O_NOFOLLOW actually work. # Define HAVE_WORKING_O_NOATIME to 1 if O_NOATIME works, or to 0 otherwise. # Define HAVE_WORKING_O_NOFOLLOW to 1 if O_NOFOLLOW works, or to 0 otherwise. AC_DEFUN([gl_FCNTL_O_FLAGS], [ dnl Persuade glibc to define O_NOATIME and O_NOFOLLOW. AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_HEADERS_ONCE([unistd.h]) AC_CHECK_FUNCS_ONCE([symlink]) AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include #if HAVE_UNISTD_H # include #else /* on Windows with MSVC */ # include # include # defined sleep(n) _sleep ((n) * 1000) #endif #include #ifndef O_NOATIME #define O_NOATIME 0 #endif #ifndef O_NOFOLLOW #define O_NOFOLLOW 0 #endif static int const constants[] = { O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC, O_APPEND, O_NONBLOCK, O_SYNC, O_ACCMODE, O_RDONLY, O_RDWR, O_WRONLY }; ]], [[ int result = !constants; #if HAVE_SYMLINK { static char const sym[] = "conftest.sym"; if (symlink ("/dev/null", sym) != 0) result |= 2; else { int fd = open (sym, O_WRONLY | O_NOFOLLOW | O_CREAT, 0); if (fd >= 0) { close (fd); result |= 4; } } if (unlink (sym) != 0 || symlink (".", sym) != 0) result |= 2; else { int fd = open (sym, O_RDONLY | O_NOFOLLOW); if (fd >= 0) { close (fd); result |= 4; } } unlink (sym); } #endif { static char const file[] = "confdefs.h"; int fd = open (file, O_RDONLY | O_NOATIME); if (fd < 0) result |= 8; else { struct stat st0; if (fstat (fd, &st0) != 0) result |= 16; else { char c; sleep (1); if (read (fd, &c, 1) != 1) result |= 24; else { if (close (fd) != 0) result |= 32; else { struct stat st1; if (stat (file, &st1) != 0) result |= 40; else if (st0.st_atime != st1.st_atime) result |= 64; } } } } } return result;]])], [gl_cv_header_working_fcntl_h=yes], [case $? in #( 4) gl_cv_header_working_fcntl_h='no (bad O_NOFOLLOW)';; #( 64) gl_cv_header_working_fcntl_h='no (bad O_NOATIME)';; #( 68) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #( *) gl_cv_header_working_fcntl_h='no';; esac], [case "$host_os" in # Guess 'no' on native Windows. mingw*) gl_cv_header_working_fcntl_h='no' ;; *) gl_cv_header_working_fcntl_h=cross-compiling ;; esac ]) ]) case $gl_cv_header_working_fcntl_h in #( *O_NOATIME* | no | cross-compiling) ac_val=0;; #( *) ac_val=1;; esac AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOATIME], [$ac_val], [Define to 1 if O_NOATIME works.]) case $gl_cv_header_working_fcntl_h in #( *O_NOFOLLOW* | no | cross-compiling) ac_val=0;; #( *) ac_val=1;; esac AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOFOLLOW], [$ac_val], [Define to 1 if O_NOFOLLOW works.]) ]) # fcntl.m4 serial 9 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # For now, this module ensures that fcntl() # - supports F_DUPFD correctly # - supports or emulates F_DUPFD_CLOEXEC # - supports F_GETFD # Still to be ported to mingw: # - F_SETFD # - F_GETFL, F_SETFL # - F_GETOWN, F_SETOWN # - F_GETLK, F_SETLK, F_SETLKW AC_DEFUN([gl_FUNC_FCNTL], [ dnl Persuade glibc to expose F_DUPFD_CLOEXEC. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_FCNTL_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_FUNCS_ONCE([fcntl]) if test $ac_cv_func_fcntl = no; then gl_REPLACE_FCNTL else dnl cygwin 1.5.x F_DUPFD has wrong errno, and allows negative target dnl haiku alpha 2 F_DUPFD has wrong errno AC_CACHE_CHECK([whether fcntl handles F_DUPFD correctly], [gl_cv_func_fcntl_f_dupfd_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include #include #include #include #ifndef RLIM_SAVED_CUR # define RLIM_SAVED_CUR RLIM_INFINITY #endif #ifndef RLIM_SAVED_MAX # define RLIM_SAVED_MAX RLIM_INFINITY #endif ]], [[int result = 0; int bad_fd = INT_MAX; struct rlimit rlim; if (getrlimit (RLIMIT_NOFILE, &rlim) == 0 && 0 <= rlim.rlim_cur && rlim.rlim_cur <= INT_MAX && rlim.rlim_cur != RLIM_INFINITY && rlim.rlim_cur != RLIM_SAVED_MAX && rlim.rlim_cur != RLIM_SAVED_CUR) bad_fd = rlim.rlim_cur; if (fcntl (0, F_DUPFD, -1) != -1) result |= 1; if (errno != EINVAL) result |= 2; if (fcntl (0, F_DUPFD, bad_fd) != -1) result |= 4; if (errno != EINVAL) result |= 8; /* On OS/2 kLIBC, F_DUPFD does not work on a directory fd */ { int fd; fd = open (".", O_RDONLY); if (fd == -1) result |= 16; else if (fcntl (fd, F_DUPFD, STDERR_FILENO + 1) == -1) result |= 32; close (fd); } return result;]])], [gl_cv_func_fcntl_f_dupfd_works=yes], [gl_cv_func_fcntl_f_dupfd_works=no], [case $host_os in aix* | cygwin* | haiku*) gl_cv_func_fcntl_f_dupfd_works="guessing no" ;; *) gl_cv_func_fcntl_f_dupfd_works="guessing yes" ;; esac])]) case $gl_cv_func_fcntl_f_dupfd_works in *yes) ;; *) gl_REPLACE_FCNTL AC_DEFINE([FCNTL_DUPFD_BUGGY], [1], [Define this to 1 if F_DUPFD behavior does not match POSIX]) ;; esac dnl Many systems lack F_DUPFD_CLOEXEC AC_CACHE_CHECK([whether fcntl understands F_DUPFD_CLOEXEC], [gl_cv_func_fcntl_f_dupfd_cloexec], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include #ifndef F_DUPFD_CLOEXEC choke me #endif ]])], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #ifdef __linux__ /* The Linux kernel only added F_DUPFD_CLOEXEC in 2.6.24, so we always replace it to support the semantics on older kernels that failed with EINVAL. */ choke me #endif ]])], [gl_cv_func_fcntl_f_dupfd_cloexec=yes], [gl_cv_func_fcntl_f_dupfd_cloexec="needs runtime check"])], [gl_cv_func_fcntl_f_dupfd_cloexec=no])]) if test "$gl_cv_func_fcntl_f_dupfd_cloexec" != yes; then gl_REPLACE_FCNTL dnl No witness macro needed for this bug. fi fi dnl Replace fcntl() for supporting the gnulib-defined fchdir() function, dnl to keep fchdir's bookkeeping up-to-date. m4_ifdef([gl_FUNC_FCHDIR], [ gl_TEST_FCHDIR if test $HAVE_FCHDIR = 0; then gl_REPLACE_FCNTL fi ]) ]) AC_DEFUN([gl_REPLACE_FCNTL], [ AC_REQUIRE([gl_FCNTL_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([fcntl]) if test $ac_cv_func_fcntl = no; then HAVE_FCNTL=0 else REPLACE_FCNTL=1 fi ]) # serial 16 # Configure fcntl.h. dnl Copyright (C) 2006-2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Paul Eggert. AC_DEFUN([gl_FCNTL_H], [ AC_REQUIRE([gl_FCNTL_H_DEFAULTS]) AC_REQUIRE([gl_FCNTL_O_FLAGS]) gl_NEXT_HEADERS([fcntl.h]) dnl Ensure the type pid_t gets defined. AC_REQUIRE([AC_TYPE_PID_T]) dnl Ensure the type mode_t gets defined. AC_REQUIRE([AC_TYPE_MODE_T]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use, if it is not common dnl enough to be declared everywhere. gl_WARN_ON_USE_PREPARE([[#include ]], [fcntl openat]) ]) AC_DEFUN([gl_FCNTL_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_FCNTL_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_FCNTL_H_DEFAULTS], [ GNULIB_CREAT=0; AC_SUBST([GNULIB_CREAT]) GNULIB_FCNTL=0; AC_SUBST([GNULIB_FCNTL]) GNULIB_NONBLOCKING=0; AC_SUBST([GNULIB_NONBLOCKING]) GNULIB_OPEN=0; AC_SUBST([GNULIB_OPEN]) GNULIB_OPENAT=0; AC_SUBST([GNULIB_OPENAT]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_FCNTL=1; AC_SUBST([HAVE_FCNTL]) HAVE_OPENAT=1; AC_SUBST([HAVE_OPENAT]) REPLACE_CREAT=0; AC_SUBST([REPLACE_CREAT]) REPLACE_FCNTL=0; AC_SUBST([REPLACE_FCNTL]) REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN]) REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT]) ]) # fdopen.m4 serial 4 dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_FDOPEN], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles m4_ifdef([gl_MSVC_INVAL], [ AC_REQUIRE([gl_MSVC_INVAL]) if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then REPLACE_FDOPEN=1 fi ]) if test $REPLACE_FDOPEN = 0; then dnl Test whether fdopen() sets errno when it fails due to a bad fd argument. AC_CACHE_CHECK([whether fdopen sets errno], [gl_cv_func_fdopen_works], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include int main (void) { FILE *fp; errno = 0; fp = fdopen (-1, "r"); if (fp == NULL && errno == 0) return 1; return 0; }]])], [gl_cv_func_fdopen_works=yes], [gl_cv_func_fdopen_works=no], [case "$host_os" in mingw*) gl_cv_func_fdopen_works="guessing no" ;; *) gl_cv_func_fdopen_works="guessing yes" ;; esac ]) ]) case "$gl_cv_func_fdopen_works" in *no) REPLACE_FDOPEN=1 ;; esac fi ]) dnl Prerequisites of lib/fdopen.c. AC_DEFUN([gl_PREREQ_FDOPEN], []) # serial 5 # Check for flexible array member support. # Copyright (C) 2006, 2009-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # Written by Paul Eggert. AC_DEFUN([AC_C_FLEXIBLE_ARRAY_MEMBER], [ AC_CACHE_CHECK([for flexible array member], ac_cv_c_flexmember, [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include #include #include struct m { struct m *next, **list; char name[]; }; struct s { struct s *p; struct m *m; int n; double d[]; };]], [[int m = getchar (); size_t nbytes = offsetof (struct s, d) + m * sizeof (double); nbytes += sizeof (struct s) - 1; nbytes -= nbytes % sizeof (struct s); struct s *p = malloc (nbytes); p->p = p; p->m = NULL; p->d[0] = 0.0; return p->d != (double *) NULL;]])], [ac_cv_c_flexmember=yes], [ac_cv_c_flexmember=no])]) if test $ac_cv_c_flexmember = yes; then AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], [Define to nothing if C supports flexible array members, and to 1 if it does not. That way, with a declaration like 'struct s { int n; short d@<:@FLEXIBLE_ARRAY_MEMBER@:>@; };', the struct hack can be used with pre-C99 compilers. Use 'FLEXSIZEOF (struct s, d, N * sizeof (short))' to calculate the size in bytes of such a struct containing an N-element array.]) else AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1]) fi ]) # float_h.m4 serial 12 dnl Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FLOAT_H], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) FLOAT_H= REPLACE_FLOAT_LDBL=0 case "$host_os" in aix* | beos* | openbsd* | mirbsd* | irix*) FLOAT_H=float.h ;; freebsd* | dragonfly*) case "$host_cpu" in changequote(,)dnl i[34567]86 ) changequote([,])dnl FLOAT_H=float.h ;; x86_64 ) # On x86_64 systems, the C compiler may still be generating # 32-bit code. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined __LP64__ || defined __x86_64__ || defined __amd64__ int ok; #else error fail #endif ]])], [], [FLOAT_H=float.h]) ;; esac ;; linux*) case "$host_cpu" in powerpc*) FLOAT_H=float.h ;; esac ;; esac case "$host_os" in aix* | freebsd* | dragonfly* | linux*) if test -n "$FLOAT_H"; then REPLACE_FLOAT_LDBL=1 fi ;; esac dnl Test against glibc-2.7 Linux/SPARC64 bug. REPLACE_ITOLD=0 AC_CACHE_CHECK([whether conversion from 'int' to 'long double' works], [gl_cv_func_itold_works], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ int i = -1; volatile long double ld; int main () { ld += i * 1.0L; if (ld > 0) return 1; return 0; }]])], [gl_cv_func_itold_works=yes], [gl_cv_func_itold_works=no], [case "$host" in sparc*-*-linux*) AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined __LP64__ || defined __arch64__ int ok; #else error fail #endif ]])], [gl_cv_func_itold_works="guessing no"], [gl_cv_func_itold_works="guessing yes"]) ;; # Guess yes on native Windows. mingw*) gl_cv_func_itold_works="guessing yes" ;; *) gl_cv_func_itold_works="guessing yes" ;; esac ]) ]) case "$gl_cv_func_itold_works" in *no) REPLACE_ITOLD=1 dnl We add the workaround to but also to , dnl to increase the chances that the fix function gets pulled in. FLOAT_H=float.h ;; esac if test -n "$FLOAT_H"; then gl_NEXT_HEADERS([float.h]) fi AC_SUBST([FLOAT_H]) AM_CONDITIONAL([GL_GENERATE_FLOAT_H], [test -n "$FLOAT_H"]) AC_SUBST([REPLACE_ITOLD]) ]) # fopen.m4 serial 11 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_FOPEN], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in mingw* | pw*) dnl Replace fopen, for handling of "/dev/null". REPLACE_FOPEN=1 dnl fopen on mingw also has the trailing slash bug. gl_cv_func_fopen_slash="guessing no" ;; *) dnl fopen("foo/", "w") should not create a file when the file name has a dnl trailing slash. AC_CACHE_CHECK([whether fopen recognizes a trailing slash], [gl_cv_func_fopen_slash], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include int main () { FILE *fp = fopen ("conftest.sl/", "w"); int result = (fp != NULL); if (fp != NULL) fclose (fp); return result; }]])], [gl_cv_func_fopen_slash=yes], [gl_cv_func_fopen_slash=no], [ changequote(,)dnl case "$host_os" in aix* | hpux* | solaris2.[0-9] | solaris2.[0-9].*) gl_cv_func_fopen_slash="guessing no" ;; *) gl_cv_func_fopen_slash="guessing yes" ;; esac changequote([,])dnl ]) rm -f conftest.sl ]) ;; esac case "$gl_cv_func_fopen_slash" in *no) AC_DEFINE([FOPEN_TRAILING_SLASH_BUG], [1], [Define to 1 if fopen() fails to recognize a trailing slash.]) REPLACE_FOPEN=1 ;; esac ]) AC_DEFUN([gl_FUNC_FOPEN_GNU], [ AC_REQUIRE([gl_FUNC_FOPEN]) AC_CACHE_CHECK([whether fopen supports the mode character 'x'], [gl_cv_func_fopen_mode_x], [rm -f conftest.x AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include int main () { FILE *fp; fp = fopen ("conftest.x", "w"); fclose (fp); fp = fopen ("conftest.x", "wx"); if (fp != NULL) /* 'x' ignored */ return 1; else if (errno == EEXIST) return 0; else /* 'x' rejected */ return 2; }]])], [gl_cv_func_fopen_mode_x=yes], [gl_cv_func_fopen_mode_x=no], [case "$host_os" in # Guess yes on glibc and musl systems. linux*-gnu* | gnu* | kfreebsd*-gnu | *-musl*) gl_cv_func_fopen_mode_x="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_fopen_mode_x="$gl_cross_guess_normal" ;; esac ]) rm -f conftest.x ]) AC_CACHE_CHECK([whether fopen supports the mode character 'e'], [gl_cv_func_fopen_mode_e], [echo foo > conftest.x AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include int main () { FILE *fp = fopen ("conftest.x", "re"); if (fp != NULL) { if (fcntl (fileno (fp), F_GETFD) & FD_CLOEXEC) return 0; else /* 'e' ignored */ return 1; } else /* 'e' rejected */ return 2; }]])], [gl_cv_func_fopen_mode_e=yes], [gl_cv_func_fopen_mode_e=no], [case "$host_os" in # Guess yes on glibc and musl systems. linux*-gnu* | gnu* | kfreebsd*-gnu | *-musl*) gl_cv_func_fopen_mode_e="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_func_fopen_mode_e="guessing no" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_fopen_mode_e="$gl_cross_guess_normal" ;; esac ]) rm -f conftest.x ]) case "$gl_cv_func_fopen_mode_x" in *no) REPLACE_FOPEN=1 ;; esac case "$gl_cv_func_fopen_mode_e" in *no) REPLACE_FOPEN=1 ;; esac ]) # Prerequisites of lib/fopen.c. AC_DEFUN([gl_PREREQ_FOPEN], [:]) # fpieee.m4 serial 2 -*- coding: utf-8 -*- dnl Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl IEEE 754 standardized three items: dnl - The formats of single-float and double-float - nowadays commonly dnl available as 'float' and 'double' in C and C++. dnl No autoconf test needed. dnl - The overflow and division by zero behaviour: The result are values dnl '±Inf' and 'NaN', rather than exceptions as it was before. dnl This file provides an autoconf macro for ensuring this behaviour of dnl floating-point operations. dnl - A set of conditions (overflow, underflow, inexact, etc.) which can dnl be configured to trigger an exception. dnl This cannot be done in a portable way: it depends on the compiler, dnl libc, kernel, and CPU. No autoconf macro is provided for this. dnl Ensure non-trapping behaviour of floating-point overflow and dnl floating-point division by zero. dnl (For integer overflow, see gcc's -ftrapv option; for integer division by dnl zero, see the autoconf macro in intdiv0.m4.) AC_DEFUN([gl_FP_IEEE], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) # IEEE behaviour is the default on all CPUs except Alpha and SH # (according to the test results of Bruno Haible's ieeefp/fenv_default.m4 # and the GCC 4.1.2 manual). case "$host_cpu" in alpha*) # On Alpha systems, a compiler option provides the behaviour. # See the ieee(3) manual page, also available at # if test -n "$GCC"; then # GCC has the option -mieee. # For full IEEE compliance (rarely needed), use option -mieee-with-inexact. CPPFLAGS="$CPPFLAGS -mieee" else # Compaq (ex-DEC) C has the option -ieee, equivalent to -ieee_with_no_inexact. # For full IEEE compliance (rarely needed), use option -ieee_with_inexact. CPPFLAGS="$CPPFLAGS -ieee" fi ;; sh*) if test -n "$GCC"; then # GCC has the option -mieee. CPPFLAGS="$CPPFLAGS -mieee" fi ;; esac ]) # fseeko.m4 serial 19 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_FSEEKO], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([gl_STDIN_LARGE_OFFSET]) AC_REQUIRE([gl_SYS_TYPES_H]) AC_REQUIRE([AC_PROG_CC]) dnl Persuade glibc to declare fseeko(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CACHE_CHECK([for fseeko], [gl_cv_func_fseeko], [ AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], [fseeko (stdin, 0, 0);])], [gl_cv_func_fseeko=yes], [gl_cv_func_fseeko=no]) ]) AC_CHECK_DECLS_ONCE([fseeko]) if test $ac_cv_have_decl_fseeko = no; then HAVE_DECL_FSEEKO=0 fi if test $gl_cv_func_fseeko = no; then HAVE_FSEEKO=0 else if test $WINDOWS_64_BIT_OFF_T = 1; then REPLACE_FSEEKO=1 fi if test $gl_cv_var_stdin_large_offset = no; then REPLACE_FSEEKO=1 fi m4_ifdef([gl_FUNC_FFLUSH_STDIN], [ gl_FUNC_FFLUSH_STDIN case "$gl_cv_func_fflush_stdin" in *yes) ;; *) REPLACE_FSEEKO=1 ;; esac ]) fi ]) dnl Code shared by fseeko and ftello. Determine if large files are supported, dnl but stdin does not start as a large file by default. AC_DEFUN([gl_STDIN_LARGE_OFFSET], [ AC_CACHE_CHECK([whether stdin defaults to large file offsets], [gl_cv_var_stdin_large_offset], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include ]], [[#if defined __SL64 && defined __SCLE /* cygwin */ /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making fseeko/ftello needlessly fail. This bug was fixed in 1.5.25, and it is easier to do a version check than building a runtime test. */ # include # if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25) choke me # endif #endif]])], [gl_cv_var_stdin_large_offset=yes], [gl_cv_var_stdin_large_offset=no])]) ]) # Prerequisites of lib/fseeko.c. AC_DEFUN([gl_PREREQ_FSEEKO], [ dnl Native Windows has the function _fseeki64. mingw hides it in some dnl circumstances, but mingw64 makes it usable again. AC_CHECK_FUNCS([_fseeki64]) if test $ac_cv_func__fseeki64 = yes; then AC_CHECK_DECLS([_fseeki64]) fi ]) # fstat.m4 serial 6 dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_FSTAT], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) case "$host_os" in mingw* | solaris*) dnl On MinGW, the original stat() returns st_atime, st_mtime, dnl st_ctime values that are affected by the time zone. dnl Solaris stat can return a negative tv_nsec. REPLACE_FSTAT=1 ;; esac dnl Replace fstat() for supporting the gnulib-defined open() on directories. m4_ifdef([gl_FUNC_FCHDIR], [ gl_TEST_FCHDIR if test $HAVE_FCHDIR = 0; then case "$gl_cv_func_open_directory_works" in *yes) ;; *) REPLACE_FSTAT=1 ;; esac fi ]) ]) # Prerequisites of lib/fstat.c and lib/stat-w32.c. AC_DEFUN([gl_PREREQ_FSTAT], [ AC_REQUIRE([gl_HEADER_SYS_STAT_H]) : ]) # ftell.m4 serial 3 dnl Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_FTELL], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_FTELLO]) dnl When ftello needs fixes, ftell needs them too. if test $HAVE_FTELLO = 0 || test $REPLACE_FTELLO = 1; then REPLACE_FTELL=1 fi ]) # ftello.m4 serial 13 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_FTELLO], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gl_STDIN_LARGE_OFFSET]) AC_REQUIRE([gl_SYS_TYPES_H]) dnl Persuade glibc to declare ftello(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CHECK_DECLS_ONCE([ftello]) if test $ac_cv_have_decl_ftello = no; then HAVE_DECL_FTELLO=0 fi AC_CACHE_CHECK([for ftello], [gl_cv_func_ftello], [ AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[ftello (stdin);]])], [gl_cv_func_ftello=yes], [gl_cv_func_ftello=no]) ]) if test $gl_cv_func_ftello = no; then HAVE_FTELLO=0 else if test $WINDOWS_64_BIT_OFF_T = 1; then REPLACE_FTELLO=1 fi if test $gl_cv_var_stdin_large_offset = no; then REPLACE_FTELLO=1 fi if test $REPLACE_FTELLO = 0; then dnl Detect bug on Solaris. dnl ftell and ftello produce incorrect results after putc that followed a dnl getc call that reached EOF on Solaris. This is because the _IOREAD dnl flag does not get cleared in this case, even though _IOWRT gets set, dnl and ftell and ftello look whether the _IOREAD flag is set. AC_REQUIRE([AC_CANONICAL_HOST]) AC_CACHE_CHECK([whether ftello works], [gl_cv_func_ftello_works], [ dnl Initial guess, used when cross-compiling or when /dev/tty cannot dnl be opened. changequote(,)dnl case "$host_os" in # Guess no on Solaris. solaris*) gl_cv_func_ftello_works="guessing no" ;; # Guess yes on native Windows. mingw*) gl_cv_func_ftello_works="guessing yes" ;; # Guess yes otherwise. *) gl_cv_func_ftello_works="guessing yes" ;; esac changequote([,])dnl AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include #define TESTFILE "conftest.tmp" int main (void) { FILE *fp; /* Create a file with some contents. */ fp = fopen (TESTFILE, "w"); if (fp == NULL) return 70; if (fwrite ("foogarsh", 1, 8, fp) < 8) { fclose (fp); return 71; } if (fclose (fp)) return 72; /* The file's contents is now "foogarsh". */ /* Try writing after reading to EOF. */ fp = fopen (TESTFILE, "r+"); if (fp == NULL) return 73; if (fseek (fp, -1, SEEK_END)) { fclose (fp); return 74; } if (!(getc (fp) == 'h')) { fclose (fp); return 1; } if (!(getc (fp) == EOF)) { fclose (fp); return 2; } if (!(ftell (fp) == 8)) { fclose (fp); return 3; } if (!(ftell (fp) == 8)) { fclose (fp); return 4; } if (!(putc ('!', fp) == '!')) { fclose (fp); return 5; } if (!(ftell (fp) == 9)) { fclose (fp); return 6; } if (!(fclose (fp) == 0)) return 7; fp = fopen (TESTFILE, "r"); if (fp == NULL) return 75; { char buf[10]; if (!(fread (buf, 1, 10, fp) == 9)) { fclose (fp); return 10; } if (!(memcmp (buf, "foogarsh!", 9) == 0)) { fclose (fp); return 11; } } if (!(fclose (fp) == 0)) return 12; /* The file's contents is now "foogarsh!". */ return 0; }]])], [gl_cv_func_ftello_works=yes], [gl_cv_func_ftello_works=no], [:]) ]) case "$gl_cv_func_ftello_works" in *yes) ;; *) REPLACE_FTELLO=1 AC_DEFINE([FTELLO_BROKEN_AFTER_SWITCHING_FROM_READ_TO_WRITE], [1], [Define to 1 if the system's ftello function has the Solaris bug.]) ;; esac fi fi ]) # Prerequisites of lib/ftello.c. AC_DEFUN([gl_PREREQ_FTELLO], [ dnl Native Windows has the function _ftelli64. mingw hides it, but mingw64 dnl makes it usable again. AC_CHECK_FUNCS([_ftelli64]) ]) # serial 20 # See if we need to emulate a missing ftruncate function using chsize. # Copyright (C) 2000-2001, 2003-2007, 2009-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_FTRUNCATE], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([ftruncate]) if test $ac_cv_func_ftruncate = yes; then m4_ifdef([gl_LARGEFILE], [ AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in mingw*) dnl Native Windows, and Large File Support is requested. dnl The MSVCRT _chsize() function only accepts a 32-bit file size, dnl and the mingw64 ftruncate64() function is unreliable (it may dnl delete the file, see dnl ). dnl Use gnulib's ftruncate() implementation instead. REPLACE_FTRUNCATE=1 ;; esac ], [ : ]) else HAVE_FTRUNCATE=0 fi ]) # Prerequisites of lib/ftruncate.c. AC_DEFUN([gl_PREREQ_FTRUNCATE], [ AC_CHECK_FUNCS([chsize]) ]) # func.m4 serial 2 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Written by Simon Josefsson AC_DEFUN([gl_FUNC], [ AC_CACHE_CHECK([whether __func__ is available], [gl_cv_var_func], AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[]], [[const char *str = __func__;]])], [gl_cv_var_func=yes], [gl_cv_var_func=no])) if test "$gl_cv_var_func" != yes; then AC_DEFINE([__func__], [""], [Define as a replacement for the ISO C99 __func__ variable.]) fi ]) # getcwd.m4 - check for working getcwd that is compatible with glibc # Copyright (C) 2001, 2003-2007, 2009-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # Written by Paul Eggert. # serial 18 AC_DEFUN([gl_FUNC_GETCWD_NULL], [ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_HEADERS_ONCE([unistd.h]) AC_CACHE_CHECK([whether getcwd (NULL, 0) allocates memory for result], [gl_cv_func_getcwd_null], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ # include # if HAVE_UNISTD_H # include # else /* on Windows with MSVC */ # include # endif # ifndef getcwd char *getcwd (); # endif ]], [[ #if defined _WIN32 && ! defined __CYGWIN__ /* mingw cwd does not start with '/', but getcwd does allocate. However, mingw fails to honor non-zero size. */ #else if (chdir ("/") != 0) return 1; else { char *f = getcwd (NULL, 0); if (! f) return 2; if (f[0] != '/') { free (f); return 3; } if (f[1] != '\0') { free (f); return 4; } free (f); return 0; } #endif ]])], [gl_cv_func_getcwd_null=yes], [gl_cv_func_getcwd_null=no], [[case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_getcwd_null="guessing yes";; # Guess yes on musl systems. *-musl*) gl_cv_func_getcwd_null="guessing yes";; # Guess yes on Cygwin. cygwin*) gl_cv_func_getcwd_null="guessing yes";; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_getcwd_null="$gl_cross_guess_normal";; esac ]])]) ]) AC_DEFUN([gl_FUNC_GETCWD_SIGNATURE], [ AC_CACHE_CHECK([for getcwd with POSIX signature], [gl_cv_func_getcwd_posix_signature], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[extern #ifdef __cplusplus "C" #endif char *getcwd (char *, size_t); ]]) ], [gl_cv_func_getcwd_posix_signature=yes], [gl_cv_func_getcwd_posix_signature=no]) ]) ]) dnl Guarantee that getcwd will malloc with a NULL first argument. Assumes dnl that either the system getcwd is robust, or that calling code is okay dnl with spurious failures when run from a directory with an absolute name dnl larger than 4k bytes. dnl dnl Assumes that getcwd exists; if you are worried about obsolete dnl platforms that lacked getcwd(), then you need to use the GPL module. AC_DEFUN([gl_FUNC_GETCWD_LGPL], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_GETCWD_NULL]) AC_REQUIRE([gl_FUNC_GETCWD_SIGNATURE]) case $gl_cv_func_getcwd_null,$gl_cv_func_getcwd_posix_signature in *yes,yes) ;; *) dnl Minimal replacement lib/getcwd-lgpl.c. REPLACE_GETCWD=1 ;; esac ]) dnl Check for all known getcwd bugs; useful for a program likely to be dnl executed from an arbitrary location. AC_DEFUN([gl_FUNC_GETCWD], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_GETCWD_NULL]) AC_REQUIRE([gl_FUNC_GETCWD_SIGNATURE]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles gl_abort_bug=no case "$host_os" in mingw*) gl_cv_func_getcwd_path_max=yes ;; *) gl_FUNC_GETCWD_PATH_MAX case "$gl_cv_func_getcwd_null" in *yes) gl_FUNC_GETCWD_ABORT_BUG([gl_abort_bug=yes]) ;; esac ;; esac dnl Define HAVE_MINIMALLY_WORKING_GETCWD and HAVE_PARTLY_WORKING_GETCWD dnl if appropriate. case "$gl_cv_func_getcwd_path_max" in *"no" | *"no, it has the AIX bug") ;; *) AC_DEFINE([HAVE_MINIMALLY_WORKING_GETCWD], [1], [Define to 1 if getcwd minimally works, that is, its result can be trusted when it succeeds.]) ;; esac case "$gl_cv_func_getcwd_path_max" in *"no, but it is partly working") AC_DEFINE([HAVE_PARTLY_WORKING_GETCWD], [1], [Define to 1 if getcwd works, except it sometimes fails when it shouldn't, setting errno to ERANGE, ENAMETOOLONG, or ENOENT.]) ;; *"yes, but with shorter paths") AC_DEFINE([HAVE_GETCWD_SHORTER], [1], [Define to 1 if getcwd works, but with shorter paths than is generally tested with the replacement.]) ;; esac if { case "$gl_cv_func_getcwd_null" in *yes) false;; *) true;; esac; } \ || test $gl_cv_func_getcwd_posix_signature != yes \ || { case "$gl_cv_func_getcwd_path_max" in *yes*) false;; *) true;; esac; } \ || test $gl_abort_bug = yes; then REPLACE_GETCWD=1 fi ]) # Prerequisites of lib/getcwd.c, when full replacement is in effect. AC_DEFUN([gl_PREREQ_GETCWD], [ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_INO]) : ]) # getdelim.m4 serial 15 dnl Copyright (C) 2005-2007, 2009-2020 Free Software Foundation, Inc. dnl dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_PREREQ([2.59]) AC_DEFUN([gl_FUNC_GETDELIM], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl Persuade glibc to declare getdelim(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CHECK_DECLS_ONCE([getdelim]) AC_CHECK_FUNCS_ONCE([getdelim]) if test $ac_cv_func_getdelim = yes; then HAVE_GETDELIM=1 dnl Found it in some library. Verify that it works. AC_CACHE_CHECK([for working getdelim function], [gl_cv_func_working_getdelim], [echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data AC_RUN_IFELSE([AC_LANG_SOURCE([[ # include # include # include int main () { FILE *in = fopen ("./conftest.data", "r"); if (!in) return 1; { /* Test result for a NULL buffer and a zero size. Based on a test program from Karl Heuer. */ char *line = NULL; size_t siz = 0; int len = getdelim (&line, &siz, '\n', in); if (!(len == 4 && line && strcmp (line, "foo\n") == 0)) { free (line); fclose (in); return 2; } free (line); } { /* Test result for a NULL buffer and a non-zero size. This crashes on FreeBSD 8.0. */ char *line = NULL; size_t siz = (size_t)(~0) / 4; if (getdelim (&line, &siz, '\n', in) == -1) { fclose (in); return 3; } free (line); } fclose (in); return 0; } ]])], [gl_cv_func_working_getdelim=yes], [gl_cv_func_working_getdelim=no], [dnl We're cross compiling. dnl Guess it works on glibc2 systems and musl systems. AC_EGREP_CPP([Lucky GNU user], [ #include #ifdef __GNU_LIBRARY__ #if (__GLIBC__ >= 2) && !defined __UCLIBC__ Lucky GNU user #endif #endif ], [gl_cv_func_working_getdelim="guessing yes"], [case "$host_os" in *-musl*) gl_cv_func_working_getdelim="guessing yes" ;; *) gl_cv_func_working_getdelim="$gl_cross_guess_normal" ;; esac ]) ]) ]) case "$gl_cv_func_working_getdelim" in *yes) ;; *) REPLACE_GETDELIM=1 ;; esac else HAVE_GETDELIM=0 fi if test $ac_cv_have_decl_getdelim = no; then HAVE_DECL_GETDELIM=0 fi ]) # Prerequisites of lib/getdelim.c. AC_DEFUN([gl_PREREQ_GETDELIM], [ AC_CHECK_FUNCS([flockfile funlockfile]) AC_CHECK_DECLS([getc_unlocked]) ]) # getdtablesize.m4 serial 7 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_GETDTABLESIZE], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_FUNCS_ONCE([getdtablesize]) AC_CHECK_DECLS_ONCE([getdtablesize]) if test $ac_cv_func_getdtablesize = yes && test $ac_cv_have_decl_getdtablesize = yes; then AC_CACHE_CHECK([whether getdtablesize works], [gl_cv_func_getdtablesize_works], [dnl There are two concepts: the "maximum possible file descriptor value + 1" dnl and the "maximum number of open file descriptors in a process". dnl Per SUSv2 and POSIX, getdtablesize() should return the first one. dnl On most platforms, the first and the second concept are the same. dnl On OpenVMS, however, they are different and getdtablesize() returns dnl the second one; thus the test below fails. But we don't care dnl because there's no good way to write a replacement getdtablesize(). case "$host_os" in vms*) gl_cv_func_getdtablesize_works="no (limitation)" ;; *) dnl Cygwin 1.7.25 automatically increases the RLIMIT_NOFILE soft dnl limit up to an unchangeable hard limit; all other platforms dnl correctly require setrlimit before getdtablesize() can report dnl a larger value. AC_RUN_IFELSE([ AC_LANG_PROGRAM([[#include ]], [int size = getdtablesize(); if (dup2 (0, getdtablesize()) != -1) return 1; if (size != getdtablesize()) return 2; ])], [gl_cv_func_getdtablesize_works=yes], [gl_cv_func_getdtablesize_works=no], [case "$host_os" in cygwin*) # on cygwin 1.5.25, getdtablesize() automatically grows gl_cv_func_getdtablesize_works="guessing no" ;; *) gl_cv_func_getdtablesize_works="guessing yes" ;; esac ]) ;; esac ]) case "$gl_cv_func_getdtablesize_works" in *yes | "no (limitation)") ;; *) REPLACE_GETDTABLESIZE=1 ;; esac else HAVE_GETDTABLESIZE=0 fi ]) # Prerequisites of lib/getdtablesize.c. AC_DEFUN([gl_PREREQ_GETDTABLESIZE], [:]) # getline.m4 serial 30 dnl Copyright (C) 1998-2003, 2005-2007, 2009-2020 Free Software Foundation, dnl Inc. dnl dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_PREREQ([2.59]) dnl See if there's a working, system-supplied version of the getline function. dnl We can't just do AC_REPLACE_FUNCS([getline]) because some systems dnl have a function by that name in -linet that doesn't have anything dnl to do with the function we need. AC_DEFUN([gl_FUNC_GETLINE], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl Persuade glibc to declare getline(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CHECK_DECLS_ONCE([getline]) gl_getline_needs_run_time_check=no AC_CHECK_FUNC([getline], [dnl Found it in some library. Verify that it works. gl_getline_needs_run_time_check=yes], [am_cv_func_working_getline=no]) if test $gl_getline_needs_run_time_check = yes; then AC_CACHE_CHECK([for working getline function], [am_cv_func_working_getline], [echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data AC_RUN_IFELSE([AC_LANG_SOURCE([[ # include # include # include int main () { FILE *in = fopen ("./conftest.data", "r"); if (!in) return 1; { /* Test result for a NULL buffer and a zero size. Based on a test program from Karl Heuer. */ char *line = NULL; size_t siz = 0; int len = getline (&line, &siz, in); if (!(len == 4 && line && strcmp (line, "foo\n") == 0)) { free (line); fclose (in); return 2; } free (line); } { /* Test result for a NULL buffer and a non-zero size. This crashes on FreeBSD 8.0. */ char *line = NULL; size_t siz = (size_t)(~0) / 4; if (getline (&line, &siz, in) == -1) { fclose (in); return 3; } free (line); } fclose (in); return 0; } ]])], [am_cv_func_working_getline=yes], [am_cv_func_working_getline=no], [dnl We're cross compiling. dnl Guess it works on glibc2 systems and musl systems. AC_EGREP_CPP([Lucky GNU user], [ #include #ifdef __GNU_LIBRARY__ #if (__GLIBC__ >= 2) && !defined __UCLIBC__ Lucky GNU user #endif #endif ], [am_cv_func_working_getline="guessing yes"], [case "$host_os" in *-musl*) am_cv_func_working_getline="guessing yes" ;; *) am_cv_func_working_getline="$gl_cross_guess_normal" ;; esac ]) ]) ]) fi if test $ac_cv_have_decl_getline = no; then HAVE_DECL_GETLINE=0 fi case "$am_cv_func_working_getline" in *yes) ;; *) dnl Set REPLACE_GETLINE always: Even if we have not found the broken dnl getline function among $LIBS, it may exist in libinet and the dnl executable may be linked with -linet. REPLACE_GETLINE=1 ;; esac ]) # Prerequisites of lib/getline.c. AC_DEFUN([gl_PREREQ_GETLINE], [ : ]) # getpagesize.m4 serial 10 dnl Copyright (C) 2002, 2004-2005, 2007, 2009-2020 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_GETPAGESIZE], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) gl_CHECK_FUNC_GETPAGESIZE if test $gl_cv_func_getpagesize = no; then HAVE_GETPAGESIZE=0 AC_CHECK_HEADERS([OS.h]) if test $ac_cv_header_OS_h = yes; then HAVE_OS_H=1 fi AC_CHECK_HEADERS([sys/param.h]) if test $ac_cv_header_sys_param_h = yes; then HAVE_SYS_PARAM_H=1 fi fi case "$host_os" in mingw*) REPLACE_GETPAGESIZE=1 ;; esac dnl Also check whether it's declared. dnl mingw has getpagesize() in libgcc.a but doesn't declare it. AC_CHECK_DECL([getpagesize], , [HAVE_DECL_GETPAGESIZE=0]) ]) dnl Tests whether the function getpagesize() exists. dnl Sets gl_cv_func_getpagesize. AC_DEFUN([gl_CHECK_FUNC_GETPAGESIZE], [ dnl We can't use AC_CHECK_FUNC here, because getpagesize() is defined as a dnl static inline function when compiling for Android 4.4 or older. AC_CACHE_CHECK([for getpagesize], [gl_cv_func_getpagesize], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[return getpagesize();]]) ], [gl_cv_func_getpagesize=yes], [gl_cv_func_getpagesize=no]) ]) ]) # serial 27 # Copyright (C) 2001-2003, 2005, 2007, 2009-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. dnl From Jim Meyering. AC_DEFUN([gl_FUNC_GETTIMEOFDAY], [ AC_REQUIRE([gl_HEADER_SYS_TIME_H_DEFAULTS]) AC_REQUIRE([AC_C_RESTRICT]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_HEADER_SYS_TIME_H]) AC_CHECK_FUNCS_ONCE([gettimeofday]) gl_gettimeofday_timezone=void if test $ac_cv_func_gettimeofday != yes; then HAVE_GETTIMEOFDAY=0 else gl_FUNC_GETTIMEOFDAY_CLOBBER AC_CACHE_CHECK([for gettimeofday with POSIX signature], [gl_cv_func_gettimeofday_posix_signature], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include struct timeval c; int gettimeofday (struct timeval *restrict, void *restrict); ]], [[/* glibc uses struct timezone * rather than the POSIX void * if _GNU_SOURCE is defined. However, since the only portable use of gettimeofday uses NULL as the second parameter, and since the glibc definition is actually more typesafe, it is not worth wrapping this to get a compliant signature. */ int (*f) (struct timeval *restrict, void *restrict) = gettimeofday; int x = f (&c, 0); return !(x | c.tv_sec | c.tv_usec); ]])], [gl_cv_func_gettimeofday_posix_signature=yes], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include int gettimeofday (struct timeval *restrict, struct timezone *restrict); ]])], [gl_cv_func_gettimeofday_posix_signature=almost], [gl_cv_func_gettimeofday_posix_signature=no])])]) if test $gl_cv_func_gettimeofday_posix_signature = almost; then gl_gettimeofday_timezone='struct timezone' elif test $gl_cv_func_gettimeofday_posix_signature != yes; then REPLACE_GETTIMEOFDAY=1 fi dnl If we override 'struct timeval', we also have to override gettimeofday. if test $REPLACE_STRUCT_TIMEVAL = 1; then REPLACE_GETTIMEOFDAY=1 fi dnl On mingw, the original gettimeofday has only a precision of 15.6 dnl milliseconds. So override it. case "$host_os" in mingw*) REPLACE_GETTIMEOFDAY=1 ;; esac fi AC_DEFINE_UNQUOTED([GETTIMEOFDAY_TIMEZONE], [$gl_gettimeofday_timezone], [Define this to 'void' or 'struct timezone' to match the system's declaration of the second argument to gettimeofday.]) ]) dnl See if gettimeofday clobbers the static buffer that localtime uses dnl for its return value. The gettimeofday function from Mac OS X 10.0.4 dnl (i.e., Darwin 1.3.7) has this problem. dnl dnl If it does, then arrange to use gettimeofday and localtime only via dnl the wrapper functions that work around the problem. AC_DEFUN([gl_FUNC_GETTIMEOFDAY_CLOBBER], [ AC_REQUIRE([gl_HEADER_SYS_TIME_H]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_LOCALTIME_BUFFER_DEFAULTS]) AC_CACHE_CHECK([whether gettimeofday clobbers localtime buffer], [gl_cv_func_gettimeofday_clobber], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include #include #include ]], [[ time_t t = 0; struct tm *lt; struct tm saved_lt; struct timeval tv; lt = localtime (&t); saved_lt = *lt; gettimeofday (&tv, NULL); return memcmp (lt, &saved_lt, sizeof (struct tm)) != 0; ]])], [gl_cv_func_gettimeofday_clobber=no], [gl_cv_func_gettimeofday_clobber=yes], [# When cross-compiling: case "$host_os" in # Guess all is fine on glibc systems. *-gnu* | gnu*) gl_cv_func_gettimeofday_clobber="guessing no" ;; # Guess all is fine on musl systems. *-musl*) gl_cv_func_gettimeofday_clobber="guessing no" ;; # Guess no on native Windows. mingw*) gl_cv_func_gettimeofday_clobber="guessing no" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_gettimeofday_clobber="$gl_cross_guess_inverted" ;; esac ])]) case "$gl_cv_func_gettimeofday_clobber" in *yes) REPLACE_GETTIMEOFDAY=1 AC_DEFINE([GETTIMEOFDAY_CLOBBERS_LOCALTIME], [1], [Define if gettimeofday clobbers the localtime buffer.]) gl_LOCALTIME_BUFFER_NEEDED ;; esac ]) # Prerequisites of lib/gettimeofday.c. AC_DEFUN([gl_PREREQ_GETTIMEOFDAY], [:]) # gnulib-common.m4 serial 50 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_PREREQ([2.62]) # gl_COMMON # is expanded unconditionally through gnulib-tool magic. AC_DEFUN([gl_COMMON], [ dnl Use AC_REQUIRE here, so that the code is expanded once only. AC_REQUIRE([gl_00GNULIB]) AC_REQUIRE([gl_COMMON_BODY]) AC_REQUIRE([gl_ZZGNULIB]) ]) AC_DEFUN([gl_COMMON_BODY], [ AH_VERBATIM([_GL_GNUC_PREREQ], [/* True if the compiler says it groks GNU C version MAJOR.MINOR. */ #if defined __GNUC__ && defined __GNUC_MINOR__ # define _GL_GNUC_PREREQ(major, minor) \ ((major) < __GNUC__ + ((minor) <= __GNUC_MINOR__)) #else # define _GL_GNUC_PREREQ(major, minor) 0 #endif ]) AH_VERBATIM([_Noreturn], [/* The _Noreturn keyword of C11. */ #ifndef _Noreturn # if (defined __cplusplus \ && ((201103 <= __cplusplus && !(__GNUC__ == 4 && __GNUC_MINOR__ == 7)) \ || (defined _MSC_VER && 1900 <= _MSC_VER)) \ && 0) /* [[noreturn]] is not practically usable, because with it the syntax extern _Noreturn void func (...); would not be valid; such a declaration would only be valid with 'extern' and '_Noreturn' swapped, or without the 'extern' keyword. However, some AIX system header files and several gnulib header files use precisely this syntax with 'extern'. */ # define _Noreturn [[noreturn]] # elif ((!defined __cplusplus || defined __clang__) \ && (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \ || _GL_GNUC_PREREQ (4, 7) \ || (defined __apple_build_version__ \ ? 6000000 <= __apple_build_version__ \ : 3 < __clang_major__ + (5 <= __clang_minor__)))) /* _Noreturn works as-is. */ # elif _GL_GNUC_PREREQ (2, 8) || 0x5110 <= __SUNPRO_C # define _Noreturn __attribute__ ((__noreturn__)) # elif 1200 <= (defined _MSC_VER ? _MSC_VER : 0) # define _Noreturn __declspec (noreturn) # else # define _Noreturn # endif #endif ]) AH_VERBATIM([isoc99_inline], [/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of earlier versions), but does not display it by setting __GNUC_STDC_INLINE__. __APPLE__ && __MACH__ test for Mac OS X. __APPLE_CC__ tests for the Apple compiler and its version. __STDC_VERSION__ tests for the C99 mode. */ #if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__ # define __GNUC_STDC_INLINE__ 1 #endif]) AH_VERBATIM([attribute], [/* Attributes. */ #ifdef __has_attribute # define _GL_HAS_ATTRIBUTE(attr) __has_attribute (__##attr##__) #else # define _GL_HAS_ATTRIBUTE(attr) _GL_ATTR_##attr # define _GL_ATTR_alloc_size _GL_GNUC_PREREQ (4, 3) # define _GL_ATTR_always_inline _GL_GNUC_PREREQ (3, 2) # define _GL_ATTR_artificial _GL_GNUC_PREREQ (4, 3) # define _GL_ATTR_cold _GL_GNUC_PREREQ (4, 3) # define _GL_ATTR_const _GL_GNUC_PREREQ (2, 95) # define _GL_ATTR_deprecated _GL_GNUC_PREREQ (3, 1) # define _GL_ATTR_error _GL_GNUC_PREREQ (4, 3) # define _GL_ATTR_externally_visible _GL_GNUC_PREREQ (4, 1) # define _GL_ATTR_fallthrough _GL_GNUC_PREREQ (7, 0) # define _GL_ATTR_format _GL_GNUC_PREREQ (2, 7) # define _GL_ATTR_leaf _GL_GNUC_PREREQ (4, 6) # ifdef _ICC # define _GL_ATTR_may_alias 0 # else # define _GL_ATTR_may_alias _GL_GNUC_PREREQ (3, 3) # endif # define _GL_ATTR_malloc _GL_GNUC_PREREQ (3, 0) # define _GL_ATTR_noinline _GL_GNUC_PREREQ (3, 1) # define _GL_ATTR_nonnull _GL_GNUC_PREREQ (3, 3) # define _GL_ATTR_nonstring _GL_GNUC_PREREQ (8, 0) # define _GL_ATTR_nothrow _GL_GNUC_PREREQ (3, 3) # define _GL_ATTR_packed _GL_GNUC_PREREQ (2, 7) # define _GL_ATTR_pure _GL_GNUC_PREREQ (2, 96) # define _GL_ATTR_returns_nonnull _GL_GNUC_PREREQ (4, 9) # define _GL_ATTR_sentinel _GL_GNUC_PREREQ (4, 0) # define _GL_ATTR_unused _GL_GNUC_PREREQ (2, 7) # define _GL_ATTR_warn_unused_result _GL_GNUC_PREREQ (3, 4) #endif ]dnl There is no _GL_ATTRIBUTE_ALIGNED; use stdalign's _Alignas instead. [ #if _GL_HAS_ATTRIBUTE (alloc_size) # define _GL_ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args)) #else # define _GL_ATTRIBUTE_ALLOC_SIZE(args) #endif #if _GL_HAS_ATTRIBUTE (always_inline) # define _GL_ATTRIBUTE_ALWAYS_INLINE __attribute__ ((__always_inline__)) #else # define _GL_ATTRIBUTE_ALWAYS_INLINE #endif #if _GL_HAS_ATTRIBUTE (artificial) # define _GL_ATTRIBUTE_ARTIFICIAL __attribute__ ((__artificial__)) #else # define _GL_ATTRIBUTE_ARTIFICIAL #endif /* Avoid __attribute__ ((cold)) on MinGW; see thread starting at . */ #if _GL_HAS_ATTRIBUTE (cold) && !defined __MINGW32__ # define _GL_ATTRIBUTE_COLD __attribute__ ((__cold__)) #else # define _GL_ATTRIBUTE_COLD #endif #if _GL_HAS_ATTRIBUTE (const) # define _GL_ATTRIBUTE_CONST __attribute__ ((__const__)) #else # define _GL_ATTRIBUTE_CONST #endif #if 201710L < __STDC_VERSION__ # define _GL_ATTRIBUTE_DEPRECATED [[__deprecated__]] #elif _GL_HAS_ATTRIBUTE (deprecated) # define _GL_ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__)) #else # define _GL_ATTRIBUTE_DEPRECATED #endif #if _GL_HAS_ATTRIBUTE (error) # define _GL_ATTRIBUTE_ERROR(msg) __attribute__ ((__error__ (msg))) # define _GL_ATTRIBUTE_WARNING(msg) __attribute__ ((__warning__ (msg))) #else # define _GL_ATTRIBUTE_ERROR(msg) # define _GL_ATTRIBUTE_WARNING(msg) #endif #if _GL_HAS_ATTRIBUTE (externally_visible) # define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE __attribute__ ((externally_visible)) #else # define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE #endif /* FALLTHROUGH is special, because it always expands to something. */ #if 201710L < __STDC_VERSION__ # define _GL_ATTRIBUTE_FALLTHROUGH [[__fallthrough__]] #elif _GL_HAS_ATTRIBUTE (fallthrough) # define _GL_ATTRIBUTE_FALLTHROUGH __attribute__ ((__fallthrough__)) #else # define _GL_ATTRIBUTE_FALLTHROUGH ((void) 0) #endif #if _GL_HAS_ATTRIBUTE (format) # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) #else # define _GL_ATTRIBUTE_FORMAT(spec) #endif #if _GL_HAS_ATTRIBUTE (leaf) # define _GL_ATTRIBUTE_LEAF __attribute__ ((__leaf__)) #else # define _GL_ATTRIBUTE_LEAF #endif #if _GL_HAS_ATTRIBUTE (may_alias) # define _GL_ATTRIBUTE_MAY_ALIAS __attribute__ ((__may_alias__)) #else # define _GL_ATTRIBUTE_MAY_ALIAS #endif #if 201710L < __STDC_VERSION__ # define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]] #elif _GL_HAS_ATTRIBUTE (unused) # define _GL_ATTRIBUTE_MAYBE_UNUSED __attribute__ ((__unused__)) #else # define _GL_ATTRIBUTE_MAYBE_UNUSED #endif /* Earlier spellings of this macro. */ #define _GL_UNUSED _GL_ATTRIBUTE_MAYBE_UNUSED #define _UNUSED_PARAMETER_ _GL_ATTRIBUTE_MAYBE_UNUSED #if _GL_HAS_ATTRIBUTE (malloc) # define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__)) #else # define _GL_ATTRIBUTE_MALLOC #endif #if 201710L < __STDC_VERSION__ # define _GL_ATTRIBUTE_NODISCARD [[__nodiscard__]] #elif _GL_HAS_ATTRIBUTE (warn_unused_result) # define _GL_ATTRIBUTE_NODISCARD __attribute__ ((__warn_unused_result__)) #else # define _GL_ATTRIBUTE_NODISCARD #endif #if _GL_HAS_ATTRIBUTE (noinline) # define _GL_ATTRIBUTE_NOINLINE __attribute__ ((__noinline__)) #else # define _GL_ATTRIBUTE_NOINLINE #endif #if _GL_HAS_ATTRIBUTE (nonnull) # define _GL_ATTRIBUTE_NONNULL(args) __attribute__ ((__nonnull__ args)) #else # define _GL_ATTRIBUTE_NONNULL(args) #endif #if _GL_HAS_ATTRIBUTE (nonstring) # define _GL_ATTRIBUTE_NONSTRING __attribute__ ((__nonstring__)) #else # define _GL_ATTRIBUTE_NONSTRING #endif /* There is no _GL_ATTRIBUTE_NORETURN; use _Noreturn instead. */ #if _GL_HAS_ATTRIBUTE (nothrow) && !defined __cplusplus # define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) #else # define _GL_ATTRIBUTE_NOTHROW #endif #if _GL_HAS_ATTRIBUTE (packed) # define _GL_ATTRIBUTE_PACKED __attribute__ ((__packed__)) #else # define _GL_ATTRIBUTE_PACKED #endif #if _GL_HAS_ATTRIBUTE (pure) # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) #else # define _GL_ATTRIBUTE_PURE #endif #if _GL_HAS_ATTRIBUTE (returns_nonnull) # define _GL_ATTRIBUTE_RETURNS_NONNULL __attribute__ ((__returns_nonnull__)) #else # define _GL_ATTRIBUTE_RETURNS_NONNULL #endif #if _GL_HAS_ATTRIBUTE (sentinel) # define _GL_ATTRIBUTE_SENTINEL(pos) __attribute__ ((__sentinel__ pos)) #else # define _GL_ATTRIBUTE_SENTINEL(pos) #endif ]dnl There is no _GL_ATTRIBUTE_VISIBILITY; see m4/visibility.m4 instead. [ /* To support C++ as well as C, use _GL_UNUSED_LABEL with trailing ';'. */ #if !defined __cplusplus || _GL_GNUC_PREREQ (4, 5) # define _GL_UNUSED_LABEL _GL_ATTRIBUTE_MAYBE_UNUSED #else # define _GL_UNUSED_LABEL #endif ]) AH_VERBATIM([async_safe], [/* The _GL_ASYNC_SAFE marker should be attached to functions that are signal handlers (for signals other than SIGABRT, SIGPIPE) or can be invoked from such signal handlers. Such functions have some restrictions: * All functions that it calls should be marked _GL_ASYNC_SAFE as well, or should be listed as async-signal-safe in POSIX section 2.4.3. Note that malloc(), sprintf(), and fwrite(), in particular, are NOT async-signal-safe. * All memory locations (variables and struct fields) that these functions access must be marked 'volatile'. This holds for both read and write accesses. Otherwise the compiler might optimize away stores to and reads from such locations that occur in the program, depending on its data flow analysis. For example, when the program contains a loop that is intended to inspect a variable set from within a signal handler while (!signal_occurred) ; the compiler is allowed to transform this into an endless loop if the variable 'signal_occurred' is not declared 'volatile'. Additionally, recall that: * A signal handler should not modify errno (except if it is a handler for a fatal signal and ends by raising the same signal again, thus provoking the termination of the process). If it invokes a function that may clobber errno, it needs to save and restore the value of errno. */ #define _GL_ASYNC_SAFE ]) dnl Hint which direction to take regarding cross-compilation guesses: dnl When a user installs a program on a platform they are not intimately dnl familiar with, --enable-cross-guesses=conservative is the appropriate dnl choice. It implements the "If we don't know, assume the worst" principle. dnl However, when an operating system developer (on a platform which is not dnl yet known to gnulib) builds packages for their platform, they want to dnl expose, not hide, possible platform bugs; in this case, dnl --enable-cross-guesses=risky is the appropriate choice. dnl Sets the variables dnl gl_cross_guess_normal (to be used when 'yes' is good and 'no' is bad), dnl gl_cross_guess_inverted (to be used when 'no' is good and 'yes' is bad). AC_ARG_ENABLE([cross-guesses], [AS_HELP_STRING([--enable-cross-guesses={conservative|risky}], [specify policy for cross-compilation guesses])], [if test "x$enableval" != xconservative && test "x$enableval" != xrisky; then AC_MSG_WARN([invalid argument supplied to --enable-cross-guesses]) enableval=conservative fi gl_cross_guesses="$enableval"], [gl_cross_guesses=conservative]) if test $gl_cross_guesses = risky; then gl_cross_guess_normal="guessing yes" gl_cross_guess_inverted="guessing no" else gl_cross_guess_normal="guessing no" gl_cross_guess_inverted="guessing yes" fi dnl Preparation for running test programs: dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not dnl to /dev/tty, so they can be redirected to log files. Such diagnostics dnl arise e.g., in the macros gl_PRINTF_DIRECTIVE_N, gl_SNPRINTF_DIRECTIVE_N. LIBC_FATAL_STDERR_=1 export LIBC_FATAL_STDERR_ ]) # gl_MODULE_INDICATOR_CONDITION # expands to a C preprocessor expression that evaluates to 1 or 0, depending # whether a gnulib module that has been requested shall be considered present # or not. m4_define([gl_MODULE_INDICATOR_CONDITION], [1]) # gl_MODULE_INDICATOR_SET_VARIABLE([modulename]) # sets the shell variable that indicates the presence of the given module to # a C preprocessor expression that will evaluate to 1. AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE], [ gl_MODULE_INDICATOR_SET_VARIABLE_AUX( [GNULIB_[]m4_translit([[$1]], [abcdefghijklmnopqrstuvwxyz./-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])], [gl_MODULE_INDICATOR_CONDITION]) ]) # gl_MODULE_INDICATOR_SET_VARIABLE_AUX([variable]) # modifies the shell variable to include the gl_MODULE_INDICATOR_CONDITION. # The shell variable's value is a C preprocessor expression that evaluates # to 0 or 1. AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE_AUX], [ m4_if(m4_defn([gl_MODULE_INDICATOR_CONDITION]), [1], [ dnl Simplify the expression VALUE || 1 to 1. $1=1 ], [gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR([$1], [gl_MODULE_INDICATOR_CONDITION])]) ]) # gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR([variable], [condition]) # modifies the shell variable to include the given condition. The shell # variable's value is a C preprocessor expression that evaluates to 0 or 1. AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR], [ dnl Simplify the expression 1 || CONDITION to 1. if test "$[]$1" != 1; then dnl Simplify the expression 0 || CONDITION to CONDITION. if test "$[]$1" = 0; then $1=$2 else $1="($[]$1 || $2)" fi fi ]) # gl_MODULE_INDICATOR([modulename]) # defines a C macro indicating the presence of the given module # in a location where it can be used. # | Value | Value | # | in lib/ | in tests/ | # --------------------------------------------+---------+-----------+ # Module present among main modules: | 1 | 1 | # --------------------------------------------+---------+-----------+ # Module present among tests-related modules: | 0 | 1 | # --------------------------------------------+---------+-----------+ # Module not present at all: | 0 | 0 | # --------------------------------------------+---------+-----------+ AC_DEFUN([gl_MODULE_INDICATOR], [ AC_DEFINE_UNQUOTED([GNULIB_]m4_translit([[$1]], [abcdefghijklmnopqrstuvwxyz./-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), [gl_MODULE_INDICATOR_CONDITION], [Define to a C preprocessor expression that evaluates to 1 or 0, depending whether the gnulib module $1 shall be considered present.]) ]) # gl_MODULE_INDICATOR_FOR_TESTS([modulename]) # defines a C macro indicating the presence of the given module # in lib or tests. This is useful to determine whether the module # should be tested. # | Value | Value | # | in lib/ | in tests/ | # --------------------------------------------+---------+-----------+ # Module present among main modules: | 1 | 1 | # --------------------------------------------+---------+-----------+ # Module present among tests-related modules: | 1 | 1 | # --------------------------------------------+---------+-----------+ # Module not present at all: | 0 | 0 | # --------------------------------------------+---------+-----------+ AC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS], [ AC_DEFINE([GNULIB_TEST_]m4_translit([[$1]], [abcdefghijklmnopqrstuvwxyz./-], [ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), [1], [Define to 1 when the gnulib module $1 should be tested.]) ]) # gl_ASSERT_NO_GNULIB_POSIXCHECK # asserts that there will never be a need to #define GNULIB_POSIXCHECK. # and thereby enables an optimization of configure and config.h. # Used by Emacs. AC_DEFUN([gl_ASSERT_NO_GNULIB_POSIXCHECK], [ dnl Override gl_WARN_ON_USE_PREPARE. dnl But hide this definition from 'aclocal'. AC_DEFUN([gl_W][ARN_ON_USE_PREPARE], []) ]) # gl_ASSERT_NO_GNULIB_TESTS # asserts that there will be no gnulib tests in the scope of the configure.ac # and thereby enables an optimization of config.h. # Used by Emacs. AC_DEFUN([gl_ASSERT_NO_GNULIB_TESTS], [ dnl Override gl_MODULE_INDICATOR_FOR_TESTS. AC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS], []) ]) # Test whether exists. # Set HAVE_FEATURES_H. AC_DEFUN([gl_FEATURES_H], [ AC_CHECK_HEADERS_ONCE([features.h]) if test $ac_cv_header_features_h = yes; then HAVE_FEATURES_H=1 else HAVE_FEATURES_H=0 fi AC_SUBST([HAVE_FEATURES_H]) ]) # AS_VAR_IF(VAR, VALUE, [IF-MATCH], [IF-NOT-MATCH]) # ---------------------------------------------------- # Backport of autoconf-2.63b's macro. # Remove this macro when we can assume autoconf >= 2.64. m4_ifndef([AS_VAR_IF], [m4_define([AS_VAR_IF], [AS_IF([test x"AS_VAR_GET([$1])" = x""$2], [$3], [$4])])]) # gl_PROG_CC_C99 # Modifies the value of the shell variable CC in an attempt to make $CC # understand ISO C99 source code. # This is like AC_PROG_CC_C99, except that # - AC_PROG_CC_C99 does not mix well with AC_PROG_CC_STDC # , # but many more packages use AC_PROG_CC_STDC than AC_PROG_CC_C99 # . # Remaining problems: # - When AC_PROG_CC_STDC is invoked twice, it adds the C99 enabling options # to CC twice # . # - AC_PROG_CC_STDC is likely to change now that C11 is an ISO standard. AC_DEFUN([gl_PROG_CC_C99], [ dnl Change that version number to the minimum Autoconf version that supports dnl mixing AC_PROG_CC_C99 calls with AC_PROG_CC_STDC calls. m4_version_prereq([9.0], [AC_REQUIRE([AC_PROG_CC_C99])], [AC_REQUIRE([AC_PROG_CC_STDC])]) ]) # gl_PROG_AR_RANLIB # Determines the values for AR, ARFLAGS, RANLIB that fit with the compiler. # The user can set the variables AR, ARFLAGS, RANLIB if he wants to override # the values. AC_DEFUN([gl_PROG_AR_RANLIB], [ dnl Minix 3 comes with two toolchains: The Amsterdam Compiler Kit compiler dnl as "cc", and GCC as "gcc". They have different object file formats and dnl library formats. In particular, the GNU binutils programs ar and ranlib dnl produce libraries that work only with gcc, not with cc. AC_REQUIRE([AC_PROG_CC]) dnl The '][' hides this use from 'aclocal'. AC_BEFORE([$0], [A][M_PROG_AR]) AC_CACHE_CHECK([for Minix Amsterdam compiler], [gl_cv_c_amsterdam_compiler], [ AC_EGREP_CPP([Amsterdam], [ #ifdef __ACK__ Amsterdam #endif ], [gl_cv_c_amsterdam_compiler=yes], [gl_cv_c_amsterdam_compiler=no]) ]) dnl Don't compete with AM_PROG_AR's decision about AR/ARFLAGS if we are not dnl building with __ACK__. if test $gl_cv_c_amsterdam_compiler = yes; then if test -z "$AR"; then AR='cc -c.a' fi if test -z "$ARFLAGS"; then ARFLAGS='-o' fi else dnl AM_PROG_AR was added in automake v1.11.2. AM_PROG_AR does not AC_SUBST dnl ARFLAGS variable (it is filed into Makefile.in directly by automake dnl script on-demand, if not specified by ./configure of course). dnl Don't AC_REQUIRE the AM_PROG_AR otherwise the code for __ACK__ above dnl will be ignored. Also, pay attention to call AM_PROG_AR in else block dnl because AM_PROG_AR is written so it could re-set AR variable even for dnl __ACK__. It may seem like its easier to avoid calling the macro here, dnl but we need to AC_SUBST both AR/ARFLAGS (thus those must have some good dnl default value and automake should usually know them). dnl dnl The '][' hides this use from 'aclocal'. m4_ifdef([A][M_PROG_AR], [A][M_PROG_AR], [:]) fi dnl In case the code above has not helped with setting AR/ARFLAGS, use dnl Automake-documented default values for AR and ARFLAGS, but prefer dnl ${host}-ar over ar (useful for cross-compiling). AC_CHECK_TOOL([AR], [ar], [ar]) if test -z "$ARFLAGS"; then ARFLAGS='cr' fi AC_SUBST([AR]) AC_SUBST([ARFLAGS]) if test -z "$RANLIB"; then if test $gl_cv_c_amsterdam_compiler = yes; then RANLIB=':' else dnl Use the ranlib program if it is available. AC_PROG_RANLIB fi fi AC_SUBST([RANLIB]) ]) # AC_C_RESTRICT # This definition is copied from post-2.69 Autoconf and overrides the # AC_C_RESTRICT macro from autoconf 2.60..2.69. It can be removed # once autoconf >= 2.70 can be assumed. 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AC_DEFUN([gl_BIGENDIAN], [ AC_C_BIGENDIAN ]) # gl_CACHE_VAL_SILENT(cache-id, command-to-set-it) # is like AC_CACHE_VAL(cache-id, command-to-set-it), except that it does not # output a spurious "(cached)" mark in the midst of other configure output. # This macro should be used instead of AC_CACHE_VAL when it is not surrounded # by an AC_MSG_CHECKING/AC_MSG_RESULT pair. AC_DEFUN([gl_CACHE_VAL_SILENT], [ saved_as_echo_n="$as_echo_n" as_echo_n=':' AC_CACHE_VAL([$1], [$2]) as_echo_n="$saved_as_echo_n" ]) # AS_VAR_COPY was added in autoconf 2.63b m4_define_default([AS_VAR_COPY], [AS_LITERAL_IF([$1[]$2], [$1=$$2], [eval $1=\$$2])]) # DO NOT EDIT! GENERATED AUTOMATICALLY! # Copyright (C) 2002-2020 Free Software Foundation, Inc. # # This file is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This file is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this file. If not, see . # # As a special exception to the GNU General Public License, # this file may be distributed as part of a program that # contains a configuration script generated by Autoconf, under # the same distribution terms as the rest of that program. # # Generated by gnulib-tool. # # This file represents the compiled summary of the specification in # gnulib-cache.m4. It lists the computed macro invocations that need # to be invoked from configure.ac. # In projects that use version control, this file can be treated like # other built files. # This macro should be invoked from ./configure.ac, in the section # "Checks for programs", right after AC_PROG_CC, and certainly before # any checks for libraries, header files, types and library functions. 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then AC_LIBOBJ([malloc]) fi gl_STDLIB_MODULE_INDICATOR([malloc-posix]) gl_MALLOCA gl_FUNC_MEMCHR if test $HAVE_MEMCHR = 0 || test $REPLACE_MEMCHR = 1; then AC_LIBOBJ([memchr]) gl_PREREQ_MEMCHR fi gl_STRING_MODULE_INDICATOR([memchr]) gl_FUNC_MEMMEM_SIMPLE if test $HAVE_MEMMEM = 0 || test $REPLACE_MEMMEM = 1; then AC_LIBOBJ([memmem]) fi gl_STRING_MODULE_INDICATOR([memmem]) gl_MINMAX AC_REQUIRE([gl_MSVC_INVAL]) if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then AC_LIBOBJ([msvc-inval]) fi AC_REQUIRE([gl_MSVC_NOTHROW]) if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then AC_LIBOBJ([msvc-nothrow]) fi gl_MODULE_INDICATOR([msvc-nothrow]) gl_MULTIARCH gl_HEADER_NETDB gl_HEADER_NETINET_IN AC_PROG_MKDIR_P gl_FUNC_OPEN if test $REPLACE_OPEN = 1; then AC_LIBOBJ([open]) gl_PREREQ_OPEN fi gl_FCNTL_MODULE_INDICATOR([open]) gl_PATHMAX AC_PATH_PROG([PMCCABE], [pmccabe], [false]) gl_PREREQ_READ_FILE gl_FUNC_REALLOC_POSIX if test $REPLACE_REALLOC = 1; then AC_LIBOBJ([realloc]) fi gl_STDLIB_MODULE_INDICATOR([realloc-posix]) gl_FUNC_SECURE_GETENV if test $HAVE_SECURE_GETENV = 0; then AC_LIBOBJ([secure_getenv]) gl_PREREQ_SECURE_GETENV fi gl_STDLIB_MODULE_INDICATOR([secure_getenv]) AC_REQUIRE([gl_HEADER_SYS_SOCKET]) if test "$ac_cv_header_winsock2_h" = yes; then AC_LIBOBJ([setsockopt]) fi gl_SYS_SOCKET_MODULE_INDICATOR([setsockopt]) gl_SIZE_MAX gl_FUNC_SNPRINTF gl_STDIO_MODULE_INDICATOR([snprintf]) gl_MODULE_INDICATOR([snprintf]) AC_REQUIRE([gl_SOCKETLIB]) gl_TYPE_SOCKLEN_T gt_TYPE_SSIZE_T gl_FUNC_STAT if test $REPLACE_STAT = 1; then AC_LIBOBJ([stat]) case "$host_os" in mingw*) AC_LIBOBJ([stat-w32]) ;; esac gl_PREREQ_STAT fi gl_SYS_STAT_MODULE_INDICATOR([stat]) gl_STAT_TIME gl_STAT_BIRTHTIME gl_STDALIGN_H AM_STDBOOL_H gl_STDDEF_H gl_STDINT_H gl_STDIO_H gl_STDLIB_H gl_STRCASE if test $HAVE_STRCASECMP = 0; then AC_LIBOBJ([strcasecmp]) gl_PREREQ_STRCASECMP fi if test $HAVE_STRNCASECMP = 0; then AC_LIBOBJ([strncasecmp]) gl_PREREQ_STRNCASECMP fi gl_FUNC_STRDUP_POSIX if test $ac_cv_func_strdup = no || test $REPLACE_STRDUP = 1; then AC_LIBOBJ([strdup]) gl_PREREQ_STRDUP fi gl_STRING_MODULE_INDICATOR([strdup]) gl_HEADER_STRING_H gl_HEADER_STRINGS_H gl_FUNC_STRNDUP if test $HAVE_STRNDUP = 0 || test $REPLACE_STRNDUP = 1; then AC_LIBOBJ([strndup]) fi gl_STRING_MODULE_INDICATOR([strndup]) gl_FUNC_STRNLEN if test $HAVE_DECL_STRNLEN = 0 || test $REPLACE_STRNLEN = 1; then AC_LIBOBJ([strnlen]) gl_PREREQ_STRNLEN fi gl_STRING_MODULE_INDICATOR([strnlen]) gl_FUNC_STRTOK_R if test $HAVE_STRTOK_R = 0 || test $REPLACE_STRTOK_R = 1; then AC_LIBOBJ([strtok_r]) gl_PREREQ_STRTOK_R fi gl_STRING_MODULE_INDICATOR([strtok_r]) gl_FUNC_STRVERSCMP if test $HAVE_STRVERSCMP = 0; then AC_LIBOBJ([strverscmp]) gl_PREREQ_STRVERSCMP fi gl_STRING_MODULE_INDICATOR([strverscmp]) AC_REQUIRE([gl_HEADER_SYS_SOCKET]) AC_PROG_MKDIR_P gl_HEADER_SYS_STAT_H AC_PROG_MKDIR_P gl_HEADER_SYS_TIME_H AC_PROG_MKDIR_P gl_SYS_TYPES_H AC_PROG_MKDIR_P gl_HEADER_SYS_UIO AC_PROG_MKDIR_P gl_HEADER_TIME_H gl_TIME_R if test $HAVE_LOCALTIME_R = 0 || test $REPLACE_LOCALTIME_R = 1; then AC_LIBOBJ([time_r]) gl_PREREQ_TIME_R fi gl_TIME_MODULE_INDICATOR([time_r]) gl_UNISTD_H gl_VALGRIND_TESTS AC_REQUIRE([AC_C_RESTRICT]) gl_FUNC_VASNPRINTF gl_FUNC_VASPRINTF gl_STDIO_MODULE_INDICATOR([vasprintf]) m4_ifdef([AM_XGETTEXT_OPTION], [AM_][XGETTEXT_OPTION([--flag=asprintf:2:c-format]) AM_][XGETTEXT_OPTION([--flag=vasprintf:2:c-format])]) gl_FUNC_VSNPRINTF gl_STDIO_MODULE_INDICATOR([vsnprintf]) gl_WCHAR_H gl_XSIZE # End of code from modules m4_ifval(gl_LIBSOURCES_LIST, [ m4_syscmd([test ! -d ]m4_defn([gl_LIBSOURCES_DIR])[ || for gl_file in ]gl_LIBSOURCES_LIST[ ; do if test ! -r ]m4_defn([gl_LIBSOURCES_DIR])[/$gl_file ; then echo "missing file ]m4_defn([gl_LIBSOURCES_DIR])[/$gl_file" >&2 exit 1 fi done])dnl m4_if(m4_sysval, [0], [], [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])]) ]) m4_popdef([gl_LIBSOURCES_DIR]) m4_popdef([gl_LIBSOURCES_LIST]) m4_popdef([AC_LIBSOURCES]) m4_popdef([AC_REPLACE_FUNCS]) m4_popdef([AC_LIBOBJ]) AC_CONFIG_COMMANDS_PRE([ gl_libobjs= gl_ltlibobjs= if test -n "$gl_LIBOBJS"; then # Remove the extension. sed_drop_objext='s/\.o$//;s/\.obj$//' for i in `for i in $gl_LIBOBJS; do echo "$i"; done | sed -e "$sed_drop_objext" | sort | uniq`; do gl_libobjs="$gl_libobjs $i.$ac_objext" gl_ltlibobjs="$gl_ltlibobjs $i.lo" done fi AC_SUBST([gl_LIBOBJS], [$gl_libobjs]) AC_SUBST([gl_LTLIBOBJS], [$gl_ltlibobjs]) ]) gltests_libdeps= gltests_ltlibdeps= m4_pushdef([AC_LIBOBJ], m4_defn([gltests_LIBOBJ])) m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gltests_REPLACE_FUNCS])) m4_pushdef([AC_LIBSOURCES], m4_defn([gltests_LIBSOURCES])) m4_pushdef([gltests_LIBSOURCES_LIST], []) m4_pushdef([gltests_LIBSOURCES_DIR], []) gl_COMMON gl_source_base='gl/tests' changequote(,)dnl gltests_WITNESS=IN_`echo "${PACKAGE-$PACKAGE_TARNAME}" | LC_ALL=C tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ | LC_ALL=C sed -e 's/[^A-Z0-9_]/_/g'`_GNULIB_TESTS changequote([, ])dnl AC_SUBST([gltests_WITNESS]) gl_module_indicator_condition=$gltests_WITNESS m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [$gl_module_indicator_condition]) AC_REQUIRE([gl_HEADER_SYS_SOCKET]) if test "$ac_cv_header_winsock2_h" = yes; then AC_LIBOBJ([accept]) fi gl_SYS_SOCKET_MODULE_INDICATOR([accept]) AC_REQUIRE([gl_HEADER_SYS_SOCKET]) if test "$ac_cv_header_winsock2_h" = yes; then AC_LIBOBJ([bind]) fi gl_SYS_SOCKET_MODULE_INDICATOR([bind]) gt_LOCALE_FR gt_LOCALE_TR_UTF8 AC_REQUIRE([gl_HEADER_SYS_SOCKET]) if test "$ac_cv_header_winsock2_h" = yes; then AC_LIBOBJ([connect]) fi gl_SYS_SOCKET_MODULE_INDICATOR([connect]) gl_CTYPE_H gl_ENVIRON gl_UNISTD_MODULE_INDICATOR([environ]) gl_FUNC_FDOPEN if test $REPLACE_FDOPEN = 1; then AC_LIBOBJ([fdopen]) gl_PREREQ_FDOPEN fi gl_STDIO_MODULE_INDICATOR([fdopen]) AC_C_FLEXIBLE_ARRAY_MEMBER gl_FUNC_UNGETC_WORKS gl_FUNC_UNGETC_WORKS gl_FUNC_FTRUNCATE if test $HAVE_FTRUNCATE = 0 || test $REPLACE_FTRUNCATE = 1; then AC_LIBOBJ([ftruncate]) gl_PREREQ_FTRUNCATE fi gl_UNISTD_MODULE_INDICATOR([ftruncate]) gl_FUNC_GETCWD_LGPL if test $REPLACE_GETCWD = 1; then AC_LIBOBJ([getcwd-lgpl]) fi gl_UNISTD_MODULE_INDICATOR([getcwd]) gl_FUNC_GETPAGESIZE if test $REPLACE_GETPAGESIZE = 1; then AC_LIBOBJ([getpagesize]) fi gl_UNISTD_MODULE_INDICATOR([getpagesize]) AC_C_BIGENDIAN AC_C_BIGENDIAN gl_INTTOSTR gl_INTTYPES_H gl_FUNC_IOCTL if test $HAVE_IOCTL = 0 || test $REPLACE_IOCTL = 1; then AC_LIBOBJ([ioctl]) fi gl_SYS_IOCTL_MODULE_INDICATOR([ioctl]) gl_FUNC_ISBLANK if test $HAVE_ISBLANK = 0; then AC_LIBOBJ([isblank]) fi gl_MODULE_INDICATOR([isblank]) gl_CTYPE_MODULE_INDICATOR([isblank]) gl_LANGINFO_H AC_REQUIRE([gl_HEADER_SYS_SOCKET]) if test "$ac_cv_header_winsock2_h" = yes; then AC_LIBOBJ([listen]) fi gl_SYS_SOCKET_MODULE_INDICATOR([listen]) gl_LOCALE_H AC_CHECK_FUNCS_ONCE([newlocale]) gl_LOCALENAME gl_LOCALE_MODULE_INDICATOR([localename]) AC_CHECK_FUNCS_ONCE([newlocale]) gl_LOCK gl_MODULE_INDICATOR([lock]) gl_FUNC_LSTAT if test $REPLACE_LSTAT = 1; then AC_LIBOBJ([lstat]) gl_PREREQ_LSTAT fi gl_SYS_STAT_MODULE_INDICATOR([lstat]) dnl Check for prerequisites for memory fence checks. gl_FUNC_MMAP_ANON AC_CHECK_HEADERS_ONCE([sys/mman.h]) AC_CHECK_FUNCS_ONCE([mprotect]) gl_FUNC_NANOSLEEP if test $HAVE_NANOSLEEP = 0 || test $REPLACE_NANOSLEEP = 1; then AC_LIBOBJ([nanosleep]) gl_PREREQ_NANOSLEEP fi gl_TIME_MODULE_INDICATOR([nanosleep]) AC_CHECK_DECLS_ONCE([alarm]) gl_FUNC_PERROR if test $REPLACE_PERROR = 1; then AC_LIBOBJ([perror]) fi gl_STRING_MODULE_INDICATOR([perror]) gl_FUNC_PIPE if test $HAVE_PIPE = 0; then AC_LIBOBJ([pipe]) fi gl_UNISTD_MODULE_INDICATOR([pipe]) gl_PTHREAD_H gl_PTHREAD_THREAD if test $HAVE_PTHREAD_CREATE = 0 || test $REPLACE_PTHREAD_CREATE = 1; then AC_LIBOBJ([pthread-thread]) fi gl_PTHREAD_MODULE_INDICATOR([pthread-thread]) gl_FUNC_PTHREAD_SIGMASK if test $HAVE_PTHREAD_SIGMASK = 0 || test $REPLACE_PTHREAD_SIGMASK = 1; then AC_LIBOBJ([pthread_sigmask]) gl_PREREQ_PTHREAD_SIGMASK fi gl_SIGNAL_MODULE_INDICATOR([pthread_sigmask]) gl_FUNC_PUTENV if test $REPLACE_PUTENV = 1; then AC_LIBOBJ([putenv]) gl_PREREQ_PUTENV fi gl_STDLIB_MODULE_INDICATOR([putenv]) gl_FUNC_RAISE if test $HAVE_RAISE = 0 || test $REPLACE_RAISE = 1; then AC_LIBOBJ([raise]) gl_PREREQ_RAISE fi gl_SIGNAL_MODULE_INDICATOR([raise]) gl_SCHED_H gl_FUNC_SELECT if test $REPLACE_SELECT = 1; then AC_LIBOBJ([select]) fi gl_SYS_SELECT_MODULE_INDICATOR([select]) AC_CHECK_HEADERS_ONCE([sys/wait.h]) gl_FUNC_SETENV if test $HAVE_SETENV = 0 || test $REPLACE_SETENV = 1; then AC_LIBOBJ([setenv]) fi gl_STDLIB_MODULE_INDICATOR([setenv]) gl_FUNC_SETLOCALE if test $REPLACE_SETLOCALE = 1; then AC_LIBOBJ([setlocale]) gl_PREREQ_SETLOCALE fi gl_LOCALE_MODULE_INDICATOR([setlocale]) gl_FUNC_SETLOCALE_NULL if test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0; then AC_LIBOBJ([setlocale-lock]) gl_PREREQ_SETLOCALE_LOCK fi gl_LOCALE_MODULE_INDICATOR([setlocale_null]) gt_LOCALE_FR gt_LOCALE_FR_UTF8 gt_LOCALE_JA gt_LOCALE_ZH_CN gl_SIGACTION if test $HAVE_SIGACTION = 0; then AC_LIBOBJ([sigaction]) gl_PREREQ_SIGACTION fi gl_SIGNAL_MODULE_INDICATOR([sigaction]) gl_SIGNAL_H gl_SIGNALBLOCKING if test $HAVE_POSIX_SIGNALBLOCKING = 0; then AC_LIBOBJ([sigprocmask]) gl_PREREQ_SIGPROCMASK fi gl_SIGNAL_MODULE_INDICATOR([sigprocmask]) gl_FUNC_SLEEP if test $HAVE_SLEEP = 0 || test $REPLACE_SLEEP = 1; then AC_LIBOBJ([sleep]) fi gl_UNISTD_MODULE_INDICATOR([sleep]) AC_CHECK_DECLS_ONCE([alarm]) AC_REQUIRE([gl_HEADER_SYS_SOCKET]) if test "$ac_cv_header_winsock2_h" = yes; then AC_LIBOBJ([socket]) fi # When this module is used, sockets may actually occur as file descriptors, # hence it is worth warning if the modules 'close' and 'ioctl' are not used. m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])]) m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])]) AC_REQUIRE([gl_PREREQ_SYS_H_WINSOCK2]) if test "$ac_cv_header_winsock2_h" = yes; then UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=1 SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=1 fi gl_SYS_SOCKET_MODULE_INDICATOR([socket]) AC_REQUIRE([gl_SOCKETS]) AC_REQUIRE([gt_TYPE_WCHAR_T]) AC_REQUIRE([gt_TYPE_WINT_T]) gl_FUNC_STRERROR if test $REPLACE_STRERROR = 1; then AC_LIBOBJ([strerror]) fi gl_MODULE_INDICATOR([strerror]) gl_STRING_MODULE_INDICATOR([strerror]) AC_REQUIRE([gl_HEADER_ERRNO_H]) AC_REQUIRE([gl_FUNC_STRERROR_0]) if test -n "$ERRNO_H" || test $REPLACE_STRERROR_0 = 1; then AC_LIBOBJ([strerror-override]) gl_PREREQ_SYS_H_WINSOCK2 fi gl_FUNC_STRERROR_R if test $HAVE_DECL_STRERROR_R = 0 || test $REPLACE_STRERROR_R = 1; then AC_LIBOBJ([strerror_r]) gl_PREREQ_STRERROR_R fi gl_STRING_MODULE_INDICATOR([strerror_r]) dnl For the modules argp, error. gl_MODULE_INDICATOR([strerror_r-posix]) dnl Check for prerequisites for memory fence checks. gl_FUNC_MMAP_ANON AC_CHECK_HEADERS_ONCE([sys/mman.h]) AC_CHECK_FUNCS_ONCE([mprotect]) gl_FUNC_SYMLINK if test $HAVE_SYMLINK = 0 || test $REPLACE_SYMLINK = 1; then AC_LIBOBJ([symlink]) fi gl_UNISTD_MODULE_INDICATOR([symlink]) gl_SYS_IOCTL_H AC_PROG_MKDIR_P AC_REQUIRE([gl_HEADER_SYS_SELECT]) AC_PROG_MKDIR_P AC_CHECK_FUNCS_ONCE([shutdown]) gl_THREAD AC_REQUIRE([gl_THREADLIB]) gl_FUNC_UNSETENV if test $HAVE_UNSETENV = 0 || test $REPLACE_UNSETENV = 1; then AC_LIBOBJ([unsetenv]) gl_PREREQ_UNSETENV fi gl_STDLIB_MODULE_INDICATOR([unsetenv]) gl_VALGRIND_TESTS abs_aux_dir=`cd "$ac_aux_dir"; pwd` AC_SUBST([abs_aux_dir]) gl_FUNC_MMAP_ANON AC_REQUIRE([AC_C_INLINE]) AC_CHECK_FUNCS_ONCE([mquery pstat_getprocvm]) AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in mingw*) AC_LIBOBJ([windows-mutex]) ;; esac AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in mingw*) AC_LIBOBJ([windows-once]) ;; esac AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in mingw*) AC_LIBOBJ([windows-recmutex]) ;; esac AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in mingw*) AC_LIBOBJ([windows-rwlock]) ;; esac AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in mingw*) AC_LIBOBJ([windows-thread]) ;; esac AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in mingw*) AC_LIBOBJ([windows-tls]) ;; esac m4_popdef([gl_MODULE_INDICATOR_CONDITION]) m4_ifval(gltests_LIBSOURCES_LIST, [ m4_syscmd([test ! -d ]m4_defn([gltests_LIBSOURCES_DIR])[ || for gl_file in ]gltests_LIBSOURCES_LIST[ ; do if test ! -r ]m4_defn([gltests_LIBSOURCES_DIR])[/$gl_file ; then echo "missing file ]m4_defn([gltests_LIBSOURCES_DIR])[/$gl_file" >&2 exit 1 fi done])dnl m4_if(m4_sysval, [0], [], [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])]) ]) m4_popdef([gltests_LIBSOURCES_DIR]) m4_popdef([gltests_LIBSOURCES_LIST]) m4_popdef([AC_LIBSOURCES]) m4_popdef([AC_REPLACE_FUNCS]) m4_popdef([AC_LIBOBJ]) AC_CONFIG_COMMANDS_PRE([ gltests_libobjs= gltests_ltlibobjs= if test -n "$gltests_LIBOBJS"; then # Remove the extension. sed_drop_objext='s/\.o$//;s/\.obj$//' for i in `for i in $gltests_LIBOBJS; do echo "$i"; done | sed -e "$sed_drop_objext" | sort | uniq`; do gltests_libobjs="$gltests_libobjs $i.$ac_objext" gltests_ltlibobjs="$gltests_ltlibobjs $i.lo" done fi AC_SUBST([gltests_LIBOBJS], [$gltests_libobjs]) AC_SUBST([gltests_LTLIBOBJS], [$gltests_ltlibobjs]) ]) LIBTESTS_LIBDEPS="$gltests_libdeps" AC_SUBST([LIBTESTS_LIBDEPS]) ]) # Like AC_LIBOBJ, except that the module name goes # into gl_LIBOBJS instead of into LIBOBJS. AC_DEFUN([gl_LIBOBJ], [ AS_LITERAL_IF([$1], [gl_LIBSOURCES([$1.c])])dnl gl_LIBOBJS="$gl_LIBOBJS $1.$ac_objext" ]) # Like AC_REPLACE_FUNCS, except that the module name goes # into gl_LIBOBJS instead of into LIBOBJS. AC_DEFUN([gl_REPLACE_FUNCS], [ m4_foreach_w([gl_NAME], [$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl AC_CHECK_FUNCS([$1], , [gl_LIBOBJ($ac_func)]) ]) # Like AC_LIBSOURCES, except the directory where the source file is # expected is derived from the gnulib-tool parameterization, # and alloca is special cased (for the alloca-opt module). # We could also entirely rely on EXTRA_lib..._SOURCES. AC_DEFUN([gl_LIBSOURCES], [ m4_foreach([_gl_NAME], [$1], [ m4_if(_gl_NAME, [alloca.c], [], [ m4_define([gl_LIBSOURCES_DIR], [gl]) m4_append([gl_LIBSOURCES_LIST], _gl_NAME, [ ]) ]) ]) ]) # Like AC_LIBOBJ, except that the module name goes # into gltests_LIBOBJS instead of into LIBOBJS. AC_DEFUN([gltests_LIBOBJ], [ AS_LITERAL_IF([$1], [gltests_LIBSOURCES([$1.c])])dnl gltests_LIBOBJS="$gltests_LIBOBJS $1.$ac_objext" ]) # Like AC_REPLACE_FUNCS, except that the module name goes # into gltests_LIBOBJS instead of into LIBOBJS. AC_DEFUN([gltests_REPLACE_FUNCS], [ m4_foreach_w([gl_NAME], [$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl AC_CHECK_FUNCS([$1], , [gltests_LIBOBJ($ac_func)]) ]) # Like AC_LIBSOURCES, except the directory where the source file is # expected is derived from the gnulib-tool parameterization, # and alloca is special cased (for the alloca-opt module). # We could also entirely rely on EXTRA_lib..._SOURCES. AC_DEFUN([gltests_LIBSOURCES], [ m4_foreach([_gl_NAME], [$1], [ m4_if(_gl_NAME, [alloca.c], [], [ m4_define([gltests_LIBSOURCES_DIR], [gl/tests]) m4_append([gltests_LIBSOURCES_LIST], _gl_NAME, [ ]) ]) ]) ]) # This macro records the list of files which have been installed by # gnulib-tool and may be removed by future gnulib-tool invocations. AC_DEFUN([gl_FILE_LIST], [ build-aux/config.rpath build-aux/gendocs.sh build-aux/ldd.sh.in build-aux/pmccabe.css build-aux/pmccabe2html build-aux/useless-if-before-free build-aux/vc-list-files doc/gendocs_template doc/gendocs_template_min lib/_Noreturn.h lib/alloca.c lib/alloca.in.h lib/arg-nonnull.h lib/arpa_inet.in.h lib/asnprintf.c lib/asprintf.c lib/attribute.h lib/bitrotate.c lib/bitrotate.h lib/byteswap.in.h lib/c++defs.h lib/c-ctype.c lib/c-ctype.h lib/c-strcase.h lib/c-strcasecmp.c lib/c-strncasecmp.c lib/cdefs.h lib/cloexec.c lib/cloexec.h lib/close.c lib/dup2.c lib/errno.in.h lib/explicit_bzero.c lib/fcntl.c lib/fcntl.in.h lib/fd-hook.c lib/fd-hook.h lib/filename.h lib/float+.h lib/float.c lib/float.in.h lib/fopen.c lib/fstat.c lib/ftell.c lib/ftello.c lib/getdelim.c lib/getdtablesize.c lib/getline.c lib/gettext.h lib/gettimeofday.c lib/hash-pjw-bare.c lib/hash-pjw-bare.h lib/hash.c lib/hash.h lib/inet_ntop.c lib/inet_pton.c lib/intprops.h lib/inttypes.in.h lib/itold.c lib/libc-config.h lib/limits.in.h lib/localtime-buffer.c lib/localtime-buffer.h lib/lseek.c lib/malloc.c lib/malloca.c lib/malloca.h lib/memchr.c lib/memchr.valgrind lib/memmem.c lib/minmax.h lib/msvc-inval.c lib/msvc-inval.h lib/msvc-nothrow.c lib/msvc-nothrow.h lib/netdb.in.h lib/netinet_in.in.h lib/open.c lib/pathmax.h lib/printf-args.c lib/printf-args.h lib/printf-parse.c lib/printf-parse.h lib/read-file.c lib/read-file.h lib/realloc.c lib/secure_getenv.c lib/setsockopt.c lib/size_max.h lib/snprintf.c lib/stat-time.c lib/stat-time.h lib/stat-w32.c lib/stat-w32.h lib/stat.c lib/stdalign.in.h lib/stdbool.in.h lib/stddef.in.h lib/stdint.in.h lib/stdio-impl.h lib/stdio.in.h lib/stdlib.in.h lib/str-two-way.h lib/strcasecmp.c lib/strdup.c lib/string.in.h lib/strings.in.h lib/strncasecmp.c lib/strndup.c lib/strnlen.c lib/strtok_r.c lib/strverscmp.c lib/sys_socket.c lib/sys_socket.in.h lib/sys_stat.in.h lib/sys_time.in.h lib/sys_types.in.h lib/sys_uio.in.h lib/time.in.h lib/time_r.c lib/unistd.c lib/unistd.in.h lib/vasnprintf.c lib/vasnprintf.h lib/vasprintf.c lib/verify.h lib/vsnprintf.c lib/w32sock.h lib/warn-on-use.h lib/wchar.in.h lib/xalloc-oversized.h lib/xsize.c lib/xsize.h m4/00gnulib.m4 m4/__inline.m4 m4/absolute-header.m4 m4/alloca.m4 m4/arpa_inet_h.m4 m4/builtin-expect.m4 m4/byteswap.m4 m4/close.m4 m4/codeset.m4 m4/ctype.m4 m4/dup2.m4 m4/eealloc.m4 m4/environ.m4 m4/errno_h.m4 m4/explicit_bzero.m4 m4/exponentd.m4 m4/extensions.m4 m4/extern-inline.m4 m4/fcntl-o.m4 m4/fcntl.m4 m4/fcntl_h.m4 m4/fdopen.m4 m4/flexmember.m4 m4/float_h.m4 m4/fopen.m4 m4/fpieee.m4 m4/fseeko.m4 m4/fstat.m4 m4/ftell.m4 m4/ftello.m4 m4/ftruncate.m4 m4/func.m4 m4/getcwd.m4 m4/getdelim.m4 m4/getdtablesize.m4 m4/getline.m4 m4/getpagesize.m4 m4/gettimeofday.m4 m4/gnulib-common.m4 m4/host-cpu-c-abi.m4 m4/include_next.m4 m4/inet_ntop.m4 m4/inet_pton.m4 m4/intl-thread-locale.m4 m4/intlmacosx.m4 m4/intmax_t.m4 m4/inttostr.m4 m4/inttypes-pri.m4 m4/inttypes.m4 m4/inttypes_h.m4 m4/ioctl.m4 m4/isblank.m4 m4/langinfo_h.m4 m4/largefile.m4 m4/lcmessage.m4 m4/ld-output-def.m4 m4/ld-version-script.m4 m4/ldd.m4 m4/lib-ld.m4 m4/lib-link.m4 m4/lib-prefix.m4 m4/limits-h.m4 m4/locale-fr.m4 m4/locale-ja.m4 m4/locale-tr.m4 m4/locale-zh.m4 m4/locale_h.m4 m4/localename.m4 m4/localtime-buffer.m4 m4/lock.m4 m4/lseek.m4 m4/lstat.m4 m4/malloc.m4 m4/malloca.m4 m4/manywarnings-c++.m4 m4/manywarnings.m4 m4/math_h.m4 m4/memchr.m4 m4/memmem.m4 m4/minmax.m4 m4/mmap-anon.m4 m4/mode_t.m4 m4/msvc-inval.m4 m4/msvc-nothrow.m4 m4/multiarch.m4 m4/nanosleep.m4 m4/netdb_h.m4 m4/netinet_in_h.m4 m4/off_t.m4 m4/open-cloexec.m4 m4/open-slash.m4 m4/open.m4 m4/pathmax.m4 m4/perror.m4 m4/pipe.m4 m4/printf.m4 m4/pthread-thread.m4 m4/pthread_h.m4 m4/pthread_rwlock_rdlock.m4 m4/pthread_sigmask.m4 m4/putenv.m4 m4/raise.m4 m4/read-file.m4 m4/realloc.m4 m4/sched_h.m4 m4/secure_getenv.m4 m4/select.m4 m4/setenv.m4 m4/setlocale.m4 m4/setlocale_null.m4 m4/sigaction.m4 m4/signal_h.m4 m4/signalblocking.m4 m4/size_max.m4 m4/sleep.m4 m4/snprintf.m4 m4/socketlib.m4 m4/sockets.m4 m4/socklen.m4 m4/sockpfaf.m4 m4/ssize_t.m4 m4/stat-time.m4 m4/stat.m4 m4/std-gnu11.m4 m4/stdalign.m4 m4/stdbool.m4 m4/stddef_h.m4 m4/stdint.m4 m4/stdint_h.m4 m4/stdio_h.m4 m4/stdlib_h.m4 m4/strcase.m4 m4/strdup.m4 m4/strerror.m4 m4/strerror_r.m4 m4/string_h.m4 m4/strings_h.m4 m4/strndup.m4 m4/strnlen.m4 m4/strtok_r.m4 m4/strverscmp.m4 m4/symlink.m4 m4/sys_ioctl_h.m4 m4/sys_select_h.m4 m4/sys_socket_h.m4 m4/sys_stat_h.m4 m4/sys_time_h.m4 m4/sys_types_h.m4 m4/sys_uio_h.m4 m4/thread.m4 m4/threadlib.m4 m4/time_h.m4 m4/time_r.m4 m4/ungetc.m4 m4/unistd_h.m4 m4/valgrind-tests.m4 m4/vasnprintf.m4 m4/vasprintf.m4 m4/visibility.m4 m4/vsnprintf.m4 m4/warn-on-use.m4 m4/warnings.m4 m4/wchar_h.m4 m4/wchar_t.m4 m4/wint_t.m4 m4/xsize.m4 m4/zzgnulib.m4 tests/init.sh tests/macros.h tests/nap.h tests/signature.h tests/test-accept.c tests/test-alloca-opt.c tests/test-arpa_inet.c tests/test-binary-io.c tests/test-binary-io.sh tests/test-bind.c tests/test-bitrotate.c tests/test-byteswap.c tests/test-c-ctype.c tests/test-c-strcase.sh tests/test-c-strcasecmp.c tests/test-c-strncasecmp.c tests/test-cloexec.c tests/test-close.c tests/test-connect.c tests/test-ctype.c tests/test-dup2.c tests/test-environ.c tests/test-errno.c tests/test-explicit_bzero.c tests/test-fcntl-h.c tests/test-fcntl.c tests/test-fdopen.c tests/test-fgetc.c tests/test-float.c tests/test-fopen-gnu.c tests/test-fopen.c tests/test-fopen.h tests/test-fputc.c tests/test-fread.c tests/test-fstat.c tests/test-ftell.c tests/test-ftell.sh tests/test-ftell2.sh tests/test-ftell3.c tests/test-ftello.c tests/test-ftello.sh tests/test-ftello2.sh tests/test-ftello3.c tests/test-ftello4.c tests/test-ftello4.sh tests/test-ftruncate.c tests/test-ftruncate.sh tests/test-func.c tests/test-fwrite.c tests/test-getcwd-lgpl.c tests/test-getdelim.c tests/test-getdtablesize.c tests/test-getline.c tests/test-gettimeofday.c tests/test-hash.c tests/test-ignore-value.c tests/test-inet_ntop.c tests/test-inet_pton.c tests/test-init.sh tests/test-intprops.c tests/test-inttostr.c tests/test-inttypes.c tests/test-ioctl.c tests/test-isblank.c tests/test-langinfo.c tests/test-limits-h.c tests/test-listen.c tests/test-locale.c tests/test-localename.c tests/test-lstat.c tests/test-lstat.h tests/test-malloca.c tests/test-memchr.c tests/test-nanosleep.c tests/test-netdb.c tests/test-netinet_in.c tests/test-open.c tests/test-open.h tests/test-pathmax.c tests/test-perror.c tests/test-perror.sh tests/test-perror2.c tests/test-pipe.c tests/test-pthread-thread.c tests/test-pthread.c tests/test-pthread_sigmask1.c tests/test-pthread_sigmask2.c tests/test-raise.c tests/test-read-file.c tests/test-sched.c tests/test-select-fd.c tests/test-select-in.sh tests/test-select-out.sh tests/test-select-stdin.c tests/test-select.c tests/test-select.h tests/test-setenv.c tests/test-setlocale1.c tests/test-setlocale1.sh tests/test-setlocale2.c tests/test-setlocale2.sh tests/test-setlocale_null-mt-all.c tests/test-setlocale_null-mt-one.c tests/test-setlocale_null.c tests/test-setsockopt.c tests/test-sigaction.c tests/test-signal-h.c tests/test-sigprocmask.c tests/test-sleep.c tests/test-snprintf.c tests/test-sockets.c tests/test-stat-time.c tests/test-stat.c tests/test-stat.h tests/test-stdalign.c tests/test-stdbool.c tests/test-stddef.c tests/test-stdint.c tests/test-stdio.c tests/test-stdlib.c tests/test-strerror.c tests/test-strerror_r.c tests/test-string.c tests/test-strings.c tests/test-strnlen.c tests/test-strverscmp.c tests/test-symlink.c tests/test-symlink.h tests/test-sys_ioctl.c tests/test-sys_select.c tests/test-sys_socket.c tests/test-sys_stat.c tests/test-sys_time.c tests/test-sys_types.c tests/test-sys_uio.c tests/test-sys_wait.h tests/test-thread_create.c tests/test-thread_self.c tests/test-time.c tests/test-unistd.c tests/test-unsetenv.c tests/test-vasnprintf.c tests/test-vasprintf.c tests/test-vc-list-files-cvs.sh tests/test-vc-list-files-git.sh tests/test-verify-try.c tests/test-verify.c tests/test-verify.sh tests/test-vsnprintf.c tests/test-wchar.c tests/zerosize-ptr.h tests=lib/_Noreturn.h tests=lib/accept.c tests=lib/anytostr.c tests=lib/arg-nonnull.h tests=lib/binary-io.c tests=lib/binary-io.h tests=lib/bind.c tests=lib/c++defs.h tests=lib/connect.c tests=lib/ctype.in.h tests=lib/fdopen.c tests=lib/flexmember.h tests=lib/fpucw.h tests=lib/ftruncate.c tests=lib/getcwd-lgpl.c tests=lib/getpagesize.c tests=lib/glthread/lock.c tests=lib/glthread/lock.h tests=lib/glthread/thread.c tests=lib/glthread/thread.h tests=lib/glthread/threadlib.c tests=lib/hash-pjw.c tests=lib/hash-pjw.h tests=lib/ignore-value.h tests=lib/imaxtostr.c tests=lib/inttostr.c tests=lib/inttostr.h tests=lib/ioctl.c tests=lib/isblank.c tests=lib/langinfo.in.h tests=lib/listen.c tests=lib/locale.in.h tests=lib/localename-table.c tests=lib/localename-table.h tests=lib/localename.c tests=lib/localename.h tests=lib/lstat.c tests=lib/nanosleep.c tests=lib/offtostr.c tests=lib/perror.c tests=lib/pipe.c tests=lib/pthread-thread.c tests=lib/pthread.in.h tests=lib/pthread_sigmask.c tests=lib/putenv.c tests=lib/raise.c tests=lib/same-inode.h tests=lib/sched.in.h tests=lib/select.c tests=lib/setenv.c tests=lib/setlocale-lock.c tests=lib/setlocale.c tests=lib/setlocale_null.c tests=lib/setlocale_null.h tests=lib/sig-handler.c tests=lib/sig-handler.h tests=lib/sigaction.c tests=lib/signal.in.h tests=lib/sigprocmask.c tests=lib/sleep.c tests=lib/socket.c tests=lib/sockets.c tests=lib/sockets.h tests=lib/strerror-override.c tests=lib/strerror-override.h tests=lib/strerror.c tests=lib/strerror_r.c tests=lib/symlink.c tests=lib/sys_ioctl.in.h tests=lib/sys_select.in.h tests=lib/uinttostr.c tests=lib/umaxtostr.c tests=lib/unsetenv.c tests=lib/vma-iter.c tests=lib/vma-iter.h tests=lib/w32sock.h tests=lib/warn-on-use.h tests=lib/windows-initguard.h tests=lib/windows-mutex.c tests=lib/windows-mutex.h tests=lib/windows-once.c tests=lib/windows-once.h tests=lib/windows-recmutex.c tests=lib/windows-recmutex.h tests=lib/windows-rwlock.c tests=lib/windows-rwlock.h tests=lib/windows-thread.c tests=lib/windows-thread.h tests=lib/windows-tls.c tests=lib/windows-tls.h top/GNUmakefile top/maint.mk ]) # serial 10 # GUILE_PKG -- find Guile development files # # Usage: GUILE_PKG([VERSIONS]) # # This macro runs the @code{pkg-config} tool to find development files # for an available version of Guile. # # By default, this macro will search for the latest stable version of # Guile (e.g. 2.2), falling back to the previous stable version # (e.g. 2.0) if it is available. If no guile-@var{VERSION}.pc file is # found, an error is signalled. The found version is stored in # @var{GUILE_EFFECTIVE_VERSION}. # # If @code{GUILE_PROGS} was already invoked, this macro ensures that the # development files have the same effective version as the Guile # program. # # @var{GUILE_EFFECTIVE_VERSION} is marked for substitution, as by # @code{AC_SUBST}. # AC_DEFUN([GUILE_PKG], [PKG_PROG_PKG_CONFIG _guile_versions_to_search="m4_default([$1], [2.2 2.0 1.8])" if test -n "$GUILE_EFFECTIVE_VERSION"; then _guile_tmp="" for v in $_guile_versions_to_search; do if test "$v" = "$GUILE_EFFECTIVE_VERSION"; then _guile_tmp=$v fi done if test -z "$_guile_tmp"; then AC_MSG_FAILURE([searching for guile development files for versions $_guile_versions_to_search, but previously found $GUILE version $GUILE_EFFECTIVE_VERSION]) fi _guile_versions_to_search=$GUILE_EFFECTIVE_VERSION fi GUILE_EFFECTIVE_VERSION="" _guile_errors="" for v in $_guile_versions_to_search; do if test -z "$GUILE_EFFECTIVE_VERSION"; then AC_MSG_NOTICE([checking for guile $v]) PKG_CHECK_EXISTS([guile-$v], [GUILE_EFFECTIVE_VERSION=$v], []) fi done if test -z "$GUILE_EFFECTIVE_VERSION"; then AC_MSG_ERROR([ No Guile development packages were found. Please verify that you have Guile installed. If you installed Guile from a binary distribution, please verify that you have also installed the development packages. If you installed it yourself, you might need to adjust your PKG_CONFIG_PATH; see the pkg-config man page for more. ]) fi AC_MSG_NOTICE([found guile $GUILE_EFFECTIVE_VERSION]) AC_SUBST([GUILE_EFFECTIVE_VERSION]) ]) # GUILE_FLAGS -- set flags for compiling and linking with Guile # # Usage: GUILE_FLAGS # # This macro runs the @code{pkg-config} tool to find out how to compile # and link programs against Guile. It sets four variables: # @var{GUILE_CFLAGS}, @var{GUILE_LDFLAGS}, @var{GUILE_LIBS}, and # @var{GUILE_LTLIBS}. # # @var{GUILE_CFLAGS}: flags to pass to a C or C++ compiler to build code that # uses Guile header files. This is almost always just one or more @code{-I} # flags. # # @var{GUILE_LDFLAGS}: flags to pass to the compiler to link a program # against Guile. This includes @code{-lguile-@var{VERSION}} for the # Guile library itself, and may also include one or more @code{-L} flag # to tell the compiler where to find the libraries. But it does not # include flags that influence the program's runtime search path for # libraries, and will therefore lead to a program that fails to start, # unless all necessary libraries are installed in a standard location # such as @file{/usr/lib}. # # @var{GUILE_LIBS} and @var{GUILE_LTLIBS}: flags to pass to the compiler or to # libtool, respectively, to link a program against Guile. It includes flags # that augment the program's runtime search path for libraries, so that shared # libraries will be found at the location where they were during linking, even # in non-standard locations. @var{GUILE_LIBS} is to be used when linking the # program directly with the compiler, whereas @var{GUILE_LTLIBS} is to be used # when linking the program is done through libtool. # # The variables are marked for substitution, as by @code{AC_SUBST}. # AC_DEFUN([GUILE_FLAGS], [AC_REQUIRE([GUILE_PKG]) PKG_CHECK_MODULES(GUILE, [guile-$GUILE_EFFECTIVE_VERSION]) dnl GUILE_CFLAGS and GUILE_LIBS are already defined and AC_SUBST'd by dnl PKG_CHECK_MODULES. But GUILE_LIBS to pkg-config is GUILE_LDFLAGS dnl to us. GUILE_LDFLAGS=$GUILE_LIBS dnl Determine the platform dependent parameters needed to use rpath. dnl AC_LIB_LINKFLAGS_FROM_LIBS is defined in gnulib/m4/lib-link.m4 and needs dnl the file gnulib/build-aux/config.rpath. AC_LIB_LINKFLAGS_FROM_LIBS([GUILE_LIBS], [$GUILE_LDFLAGS], []) GUILE_LIBS="$GUILE_LDFLAGS $GUILE_LIBS" AC_LIB_LINKFLAGS_FROM_LIBS([GUILE_LTLIBS], [$GUILE_LDFLAGS], [yes]) GUILE_LTLIBS="$GUILE_LDFLAGS $GUILE_LTLIBS" AC_SUBST([GUILE_EFFECTIVE_VERSION]) AC_SUBST([GUILE_CFLAGS]) AC_SUBST([GUILE_LDFLAGS]) AC_SUBST([GUILE_LIBS]) AC_SUBST([GUILE_LTLIBS]) ]) # GUILE_SITE_DIR -- find path to Guile site directories # # Usage: GUILE_SITE_DIR # # This looks for Guile's "site" directories. The variable @var{GUILE_SITE} will # be set to Guile's "site" directory for Scheme source files (usually something # like PREFIX/share/guile/site). @var{GUILE_SITE_CCACHE} will be set to the # directory for compiled Scheme files also known as @code{.go} files # (usually something like # PREFIX/lib/guile/@var{GUILE_EFFECTIVE_VERSION}/site-ccache). # @var{GUILE_EXTENSION} will be set to the directory for compiled C extensions # (usually something like # PREFIX/lib/guile/@var{GUILE_EFFECTIVE_VERSION}/extensions). The latter two # are set to blank if the particular version of Guile does not support # them. Note that this macro will run the macros @code{GUILE_PKG} and # @code{GUILE_PROGS} if they have not already been run. # # The variables are marked for substitution, as by @code{AC_SUBST}. # AC_DEFUN([GUILE_SITE_DIR], [AC_REQUIRE([GUILE_PKG]) AC_REQUIRE([GUILE_PROGS]) AC_MSG_CHECKING(for Guile site directory) GUILE_SITE=`$PKG_CONFIG --print-errors --variable=sitedir guile-$GUILE_EFFECTIVE_VERSION` AC_MSG_RESULT($GUILE_SITE) if test "$GUILE_SITE" = ""; then AC_MSG_FAILURE(sitedir not found) fi AC_SUBST(GUILE_SITE) AC_MSG_CHECKING([for Guile site-ccache directory using pkgconfig]) GUILE_SITE_CCACHE=`$PKG_CONFIG --variable=siteccachedir guile-$GUILE_EFFECTIVE_VERSION` if test "$GUILE_SITE_CCACHE" = ""; then AC_MSG_RESULT(no) AC_MSG_CHECKING([for Guile site-ccache directory using interpreter]) GUILE_SITE_CCACHE=`$GUILE -c "(display (if (defined? '%site-ccache-dir) (%site-ccache-dir) \"\"))"` if test $? != "0" -o "$GUILE_SITE_CCACHE" = ""; then AC_MSG_RESULT(no) GUILE_SITE_CCACHE="" AC_MSG_WARN([siteccachedir not found]) fi fi AC_MSG_RESULT($GUILE_SITE_CCACHE) AC_SUBST([GUILE_SITE_CCACHE]) AC_MSG_CHECKING(for Guile extensions directory) GUILE_EXTENSION=`$PKG_CONFIG --print-errors --variable=extensiondir guile-$GUILE_EFFECTIVE_VERSION` AC_MSG_RESULT($GUILE_EXTENSION) if test "$GUILE_EXTENSION" = ""; then GUILE_EXTENSION="" AC_MSG_WARN(extensiondir not found) fi AC_SUBST(GUILE_EXTENSION) ]) # GUILE_PROGS -- set paths to Guile interpreter, config and tool programs # # Usage: GUILE_PROGS([VERSION]) # # This macro looks for programs @code{guile} and @code{guild}, setting # variables @var{GUILE} and @var{GUILD} to their paths, respectively. # The macro will attempt to find @code{guile} with the suffix of # @code{-X.Y}, followed by looking for it with the suffix @code{X.Y}, and # then fall back to looking for @code{guile} with no suffix. If # @code{guile} is still not found, signal an error. The suffix, if any, # that was required to find @code{guile} will be used for @code{guild} # as well. # # By default, this macro will search for the latest stable version of # Guile (e.g. 2.2). x.y or x.y.z versions can be specified. If an older # version is found, the macro will signal an error. # # The effective version of the found @code{guile} is set to # @var{GUILE_EFFECTIVE_VERSION}. This macro ensures that the effective # version is compatible with the result of a previous invocation of # @code{GUILE_FLAGS}, if any. # # As a legacy interface, it also looks for @code{guile-config} and # @code{guile-tools}, setting @var{GUILE_CONFIG} and @var{GUILE_TOOLS}. # # The variables are marked for substitution, as by @code{AC_SUBST}. # AC_DEFUN([GUILE_PROGS], [_guile_required_version="m4_default([$1], [$GUILE_EFFECTIVE_VERSION])" if test -z "$_guile_required_version"; then _guile_required_version=2.2 fi _guile_candidates=guile _tmp= for v in `echo "$_guile_required_version" | tr . ' '`; do if test -n "$_tmp"; then _tmp=$_tmp.; fi _tmp=$_tmp$v _guile_candidates="guile-$_tmp guile$_tmp $_guile_candidates" done AC_PATH_PROGS(GUILE,[$_guile_candidates]) if test -z "$GUILE"; then AC_MSG_ERROR([guile required but not found]) fi _guile_suffix=`echo "$GUILE" | sed -e 's,^.*/guile\(.*\)$,\1,'` _guile_effective_version=`$GUILE -c "(display (effective-version))"` if test -z "$GUILE_EFFECTIVE_VERSION"; then GUILE_EFFECTIVE_VERSION=$_guile_effective_version elif test "$GUILE_EFFECTIVE_VERSION" != "$_guile_effective_version"; then AC_MSG_ERROR([found development files for Guile $GUILE_EFFECTIVE_VERSION, but $GUILE has effective version $_guile_effective_version]) fi _guile_major_version=`$GUILE -c "(display (major-version))"` _guile_minor_version=`$GUILE -c "(display (minor-version))"` _guile_micro_version=`$GUILE -c "(display (micro-version))"` _guile_prog_version="$_guile_major_version.$_guile_minor_version.$_guile_micro_version" AC_MSG_CHECKING([for Guile version >= $_guile_required_version]) _major_version=`echo $_guile_required_version | cut -d . -f 1` _minor_version=`echo $_guile_required_version | cut -d . -f 2` _micro_version=`echo $_guile_required_version | cut -d . -f 3` if test "$_guile_major_version" -gt "$_major_version"; then true elif test "$_guile_major_version" -eq "$_major_version"; then if test "$_guile_minor_version" -gt "$_minor_version"; then true elif test "$_guile_minor_version" -eq "$_minor_version"; then if test -n "$_micro_version"; then if test "$_guile_micro_version" -lt "$_micro_version"; then AC_MSG_ERROR([Guile $_guile_required_version required, but $_guile_prog_version found]) fi fi elif test "$GUILE_EFFECTIVE_VERSION" = "$_major_version.$_minor_version" -a -z "$_micro_version"; then # Allow prereleases that have the right effective version. true else as_fn_error $? "Guile $_guile_required_version required, but $_guile_prog_version found" "$LINENO" 5 fi elif test "$GUILE_EFFECTIVE_VERSION" = "$_major_version.$_minor_version" -a -z "$_micro_version"; then # Allow prereleases that have the right effective version. true else AC_MSG_ERROR([Guile $_guile_required_version required, but $_guile_prog_version found]) fi AC_MSG_RESULT([$_guile_prog_version]) AC_PATH_PROG(GUILD,[guild$_guile_suffix]) AC_SUBST(GUILD) AC_PATH_PROG(GUILE_CONFIG,[guile-config$_guile_suffix]) AC_SUBST(GUILE_CONFIG) if test -n "$GUILD"; then GUILE_TOOLS=$GUILD else AC_PATH_PROG(GUILE_TOOLS,[guile-tools$_guile_suffix]) fi AC_SUBST(GUILE_TOOLS) ]) # GUILE_CHECK -- evaluate Guile Scheme code and capture the return value # # Usage: GUILE_CHECK_RETVAL(var,check) # # @var{var} is a shell variable name to be set to the return value. # @var{check} is a Guile Scheme expression, evaluated with "$GUILE -c", and # returning either 0 or non-#f to indicate the check passed. # Non-0 number or #f indicates failure. # Avoid using the character "#" since that confuses autoconf. # AC_DEFUN([GUILE_CHECK], [AC_REQUIRE([GUILE_PROGS]) $GUILE -c "$2" > /dev/null 2>&1 $1=$? ]) # GUILE_MODULE_CHECK -- check feature of a Guile Scheme module # # Usage: GUILE_MODULE_CHECK(var,module,featuretest,description) # # @var{var} is a shell variable name to be set to "yes" or "no". # @var{module} is a list of symbols, like: (ice-9 common-list). # @var{featuretest} is an expression acceptable to GUILE_CHECK, q.v. # @var{description} is a present-tense verb phrase (passed to AC_MSG_CHECKING). # AC_DEFUN([GUILE_MODULE_CHECK], [AC_MSG_CHECKING([if $2 $4]) GUILE_CHECK($1,(use-modules $2) (exit ((lambda () $3)))) if test "$$1" = "0" ; then $1=yes ; else $1=no ; fi AC_MSG_RESULT($$1) ]) # GUILE_MODULE_AVAILABLE -- check availability of a Guile Scheme module # # Usage: GUILE_MODULE_AVAILABLE(var,module) # # @var{var} is a shell variable name to be set to "yes" or "no". # @var{module} is a list of symbols, like: (ice-9 common-list). # AC_DEFUN([GUILE_MODULE_AVAILABLE], [GUILE_MODULE_CHECK($1,$2,0,is available) ]) # GUILE_MODULE_REQUIRED -- fail if a Guile Scheme module is unavailable # # Usage: GUILE_MODULE_REQUIRED(symlist) # # @var{symlist} is a list of symbols, WITHOUT surrounding parens, # like: ice-9 common-list. # AC_DEFUN([GUILE_MODULE_REQUIRED], [GUILE_MODULE_AVAILABLE(ac_guile_module_required, ($1)) if test "$ac_guile_module_required" = "no" ; then AC_MSG_ERROR([required guile module not found: ($1)]) fi ]) # GUILE_MODULE_EXPORTS -- check if a module exports a variable # # Usage: GUILE_MODULE_EXPORTS(var,module,modvar) # # @var{var} is a shell variable to be set to "yes" or "no". # @var{module} is a list of symbols, like: (ice-9 common-list). # @var{modvar} is the Guile Scheme variable to check. # AC_DEFUN([GUILE_MODULE_EXPORTS], [GUILE_MODULE_CHECK($1,$2,$3,exports `$3') ]) # GUILE_MODULE_REQUIRED_EXPORT -- fail if a module doesn't export a variable # # Usage: GUILE_MODULE_REQUIRED_EXPORT(module,modvar) # # @var{module} is a list of symbols, like: (ice-9 common-list). # @var{modvar} is the Guile Scheme variable to check. # AC_DEFUN([GUILE_MODULE_REQUIRED_EXPORT], [GUILE_MODULE_EXPORTS(guile_module_required_export,$1,$2) if test "$guile_module_required_export" = "no" ; then AC_MSG_ERROR([module $1 does not export $2; required]) fi ]) # Copyright (C) 2000-2012 Free Software Foundation, Inc. # # Author: Nikos Mavrogiannopoulos, Simon Josefsson # # This file is part of GnuTLS. # # The GnuTLS is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public License # as published by the Free Software Foundation; either version 2.1 of # the License, or (at your option) any later version. # # The GnuTLS is distributed in the hope that it will be # useful, but WITHOUT ANY WARRANTY; without even the implied warranty # of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public License # along with this program. If not, see AC_DEFUN([LIBGNUTLS_EXTRA_HOOKS], [ AC_MSG_CHECKING([whether to build OpenSSL compatibility layer]) AC_ARG_ENABLE(openssl-compatibility, AS_HELP_STRING([--enable-openssl-compatibility], [enable the OpenSSL compatibility library]), enable_openssl=$enableval, enable_openssl=no) AC_MSG_RESULT($enable_openssl) AM_CONDITIONAL(ENABLE_OPENSSL, test "$enable_openssl" = "yes") # We link to ../lib's gnulib, which needs -lws2_32 via LIBSOCKET in Makefile.am. gl_SOCKETS ]) AC_DEFUN([LIBGNUTLS_HOOKS], [ # Library code modified: REVISION++ # Interfaces changed/added/removed: CURRENT++ REVISION=0 # Interfaces added: AGE++ # + add new version symbol in libgnutls.map, see Symbol and library versioning # in CONTRIBUTION.md for more info. # # Interfaces removed: AGE=0 (+bump all symbol versions in .map) AC_SUBST(LT_CURRENT, 58) AC_SUBST(LT_REVISION, 0) AC_SUBST(LT_AGE, 28) AC_SUBST(LT_SSL_CURRENT, 27) AC_SUBST(LT_SSL_REVISION, 2) AC_SUBST(LT_SSL_AGE, 0) AC_SUBST(LT_DANE_CURRENT, 4) AC_SUBST(LT_DANE_REVISION, 1) AC_SUBST(LT_DANE_AGE, 4) AC_SUBST(LT_XSSL_CURRENT, 0) AC_SUBST(LT_XSSL_REVISION, 0) AC_SUBST(LT_XSSL_AGE, 0) AC_SUBST(CXX_LT_CURRENT, 29) AC_SUBST(CXX_LT_REVISION, 0) AC_SUBST(CXX_LT_AGE, 1) AC_SUBST(CRYWRAP_PATCHLEVEL, 3) # Used when creating the Windows libgnutls-XX.def files. DLL_VERSION=`expr ${LT_CURRENT} - ${LT_AGE}` AC_SUBST(DLL_VERSION) DLL_SSL_VERSION=`expr ${LT_SSL_CURRENT} - ${LT_SSL_AGE}` AC_SUBST(DLL_SSL_VERSION) NETTLE_MINIMUM=3.4.1 PKG_CHECK_MODULES(NETTLE, [nettle >= $NETTLE_MINIMUM], [cryptolib="nettle"], [ AC_MSG_ERROR([[ *** *** Libnettle $NETTLE_MINIMUM was not found. ]]) ]) PKG_CHECK_MODULES(HOGWEED, [hogweed >= $NETTLE_MINIMUM ], [], [ AC_MSG_ERROR([[ *** *** Libhogweed (nettle's companion library) $NETTLE_MINIMUM was not found. Note that you must compile nettle with gmp support. ]]) ]) AM_CONDITIONAL(ENABLE_NETTLE, test "$cryptolib" = "nettle") AC_DEFINE([HAVE_LIBNETTLE], 1, [nettle is enabled]) GNUTLS_REQUIRES_PRIVATE="Requires.private: nettle, hogweed" AC_ARG_WITH(nettle-mini, AS_HELP_STRING([--with-nettle-mini], [Link against a mini-nettle (that includes mini-gmp)]), mini_nettle=$withval, mini_nettle=no) AC_ARG_VAR(GMP_CFLAGS, [C compiler flags for gmp]) AC_ARG_VAR(GMP_LIBS, [linker flags for gmp]) if test "$mini_nettle" != no;then GMP_CFLAGS="" GMP_LIBS="" else if test x$GMP_LIBS = x; then AC_CHECK_LIB(gmp, __gmpz_cmp, [GMP_LIBS="-lgmp"], [AC_MSG_ERROR([[ *** *** gmp was not found. ]])]) fi fi AC_SUBST(GMP_CFLAGS) AC_SUBST(GMP_LIBS) LIBTASN1_MINIMUM=4.9 AC_ARG_WITH(included-libtasn1, AS_HELP_STRING([--with-included-libtasn1], [use the included libtasn1]), included_libtasn1=$withval, included_libtasn1=no) if test "$included_libtasn1" = "no"; then PKG_CHECK_MODULES(LIBTASN1, [libtasn1 >= $LIBTASN1_MINIMUM], [], [included_libtasn1=yes]) if test "$included_libtasn1" = yes; then AC_MSG_ERROR([[ *** *** Libtasn1 $LIBTASN1_MINIMUM was not found. To use the included one, use --with-included-libtasn1 ]]) fi fi AC_MSG_CHECKING([whether to use the included minitasn1]) AC_MSG_RESULT($included_libtasn1) AM_CONDITIONAL(ENABLE_MINITASN1, test "$included_libtasn1" = "yes") if test "$included_libtasn1" = "no"; then GNUTLS_REQUIRES_PRIVATE="${GNUTLS_REQUIRES_PRIVATE}, libtasn1" fi AC_MSG_CHECKING([whether C99 macros are supported]) AC_TRY_COMPILE(, [ #define test_mac(...) int z,y,x; test_mac(x,y,z); return 0; ], [ AC_DEFINE([C99_MACROS], 1, [C99 macros are supported]) AC_MSG_RESULT(yes) ], [ AC_MSG_RESULT(no) AC_MSG_WARN([C99 macros not supported. This may affect compiling.]) ]) ac_strict_der_time=yes AC_MSG_CHECKING([whether to disable strict DER time encodings for backwards compatibility]) AC_ARG_ENABLE(strict-der-time, AS_HELP_STRING([--disable-strict-der-time], [allow non compliant DER time values]), ac_strict_der_time=$enableval) if test x$ac_strict_der_time != xno; then AC_MSG_RESULT(no) AC_DEFINE([STRICT_DER_TIME], 1, [force strict DER time constraints]) else AC_MSG_RESULT(yes) fi AM_CONDITIONAL(STRICT_DER_TIME, test "$ac_strict_der_time" != "no") ac_allow_sha1=no AC_MSG_CHECKING([whether to allow SHA1 as an acceptable hash for cert digital signatures]) AC_ARG_ENABLE(sha1-support, AS_HELP_STRING([--enable-sha1-support], [allow SHA1 as an acceptable hash for cert digital signatures]), ac_allow_sha1=$enableval) if test x$ac_allow_sha1 != xno; then AC_MSG_RESULT(no) AC_DEFINE([ALLOW_SHA1], 1, [allow SHA1 as an acceptable hash for digital signatures]) else AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ALLOW_SHA1, test "$ac_allow_sha1" != "no") ac_enable_ssl3=no AC_MSG_CHECKING([whether to disable the SSL 3.0 protocol]) AC_ARG_ENABLE(ssl3-support, AS_HELP_STRING([--enable-ssl3-support], [enable support for the SSL 3.0 protocol]), ac_enable_ssl3=$enableval) if test x$ac_enable_ssl3 != xno; then AC_MSG_RESULT(no) AC_DEFINE([ENABLE_SSL3], 1, [enable SSL3.0 support]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_SSL3, test "$ac_enable_ssl3" != "no") ac_enable_ssl2=yes AC_MSG_CHECKING([whether to disable the SSL 2.0 client hello]) AC_ARG_ENABLE(ssl2-support, AS_HELP_STRING([--disable-ssl2-support], [disable support for the SSL 2.0 client hello]), ac_enable_ssl2=$enableval) if test x$ac_enable_ssl2 != xno; then AC_MSG_RESULT(no) AC_DEFINE([ENABLE_SSL2], 1, [enable SSL2.0 support for client hello]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_SSL2, test "$ac_enable_ssl2" != "no") ac_enable_srtp=yes AC_MSG_CHECKING([whether to disable DTLS-SRTP extension]) AC_ARG_ENABLE(dtls-srtp-support, AS_HELP_STRING([--disable-dtls-srtp-support], [disable support for the DTLS-SRTP extension]), ac_enable_srtp=$enableval) if test x$ac_enable_srtp != xno; then AC_MSG_RESULT(no) AC_DEFINE([ENABLE_DTLS_SRTP], 1, [enable DTLS-SRTP support]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_DTLS_SRTP, test "$ac_enable_srtp" != "no") AC_MSG_CHECKING([whether to disable ALPN extension]) AC_ARG_ENABLE(alpn-support, AS_HELP_STRING([--disable-alpn-support], [disable support for the Application Layer Protocol Negotiation (ALPN) extension]), ac_enable_alpn=$enableval,ac_enable_alpn=yes) if test x$ac_enable_alpn != xno; then AC_MSG_RESULT(no) AC_DEFINE([ENABLE_ALPN], 1, [enable ALPN support]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_ALPN, test "$ac_enable_alpn" != "no") ac_enable_heartbeat=yes AC_MSG_CHECKING([whether to enable TLS heartbeat support]) AC_ARG_ENABLE(heartbeat-support, AS_HELP_STRING([--disable-heartbeat-support], [disable support for the heartbeat extension]), ac_enable_heartbeat=$enableval) if test x$ac_enable_heartbeat != xno; then AC_MSG_RESULT(yes) AC_DEFINE([ENABLE_HEARTBEAT], 1, [enable heartbeat support]) else AC_MSG_RESULT(no) fi AM_CONDITIONAL(ENABLE_HEARTBEAT, test "$ac_enable_heartbeat" != "no") ac_enable_srp=yes AC_MSG_CHECKING([whether to disable SRP authentication support]) AC_ARG_ENABLE(srp-authentication, AS_HELP_STRING([--disable-srp-authentication], [disable the SRP authentication support]), ac_enable_srp=$enableval) if test x$ac_enable_srp != xno; then AC_MSG_RESULT(no) AC_DEFINE([ENABLE_SRP], 1, [enable SRP authentication]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_SRP, test "$ac_enable_srp" != "no") ac_enable_psk=yes AC_MSG_CHECKING([whether to disable PSK authentication support]) AC_ARG_ENABLE(psk-authentication, AS_HELP_STRING([--disable-psk-authentication], [disable the PSK authentication support]), ac_enable_psk=$enableval) if test x$ac_enable_psk != xno; then AC_MSG_RESULT(no) AC_DEFINE([ENABLE_PSK], 1, [enable PSK authentication]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_PSK, test "$ac_enable_psk" != "no") ac_enable_anon=yes AC_MSG_CHECKING([whether to disable anonymous authentication support]) AC_ARG_ENABLE(anon-authentication, AS_HELP_STRING([--disable-anon-authentication], [disable the anonymous authentication support]), ac_enable_anon=$enableval) if test x$ac_enable_anon != xno; then AC_MSG_RESULT(no) AC_DEFINE([ENABLE_ANON], 1, [enable anonymous authentication]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_ANON, test "$ac_enable_anon" != "no") AC_MSG_CHECKING([whether to disable DHE support]) AC_ARG_ENABLE(dhe, AS_HELP_STRING([--disable-dhe], [disable the DHE support]), ac_enable_dhe=$enableval, ac_enable_dhe=yes) if test x$ac_enable_dhe != xno; then AC_MSG_RESULT(no) AC_DEFINE([ENABLE_DHE], 1, [enable DHE]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_DHE, test "$ac_enable_dhe" != "no") AC_MSG_CHECKING([whether to disable ECDHE support]) AC_ARG_ENABLE(ecdhe, AS_HELP_STRING([--disable-ecdhe], [disable the ECDHE support]), ac_enable_ecdhe=$enableval, ac_enable_ecdhe=yes) if test x$ac_enable_ecdhe != xno; then AC_MSG_RESULT(no) AC_DEFINE([ENABLE_ECDHE], 1, [enable DHE]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_ECDHE, test "$ac_enable_ecdhe" != "no") AC_MSG_CHECKING([whether to disable GOST support]) AC_ARG_ENABLE(gost, AS_HELP_STRING([--disable-gost], [disable the GOST support]), ac_enable_gost=$enableval, ac_enable_gost=yes) if test x$ac_enable_gost != xno; then AC_MSG_RESULT(no) AC_DEFINE([ENABLE_GOST], 1, [enable GOST]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_GOST, test "$ac_enable_gost" != "no") # For cryptodev AC_MSG_CHECKING([whether to add cryptodev support]) AC_ARG_ENABLE(cryptodev, AS_HELP_STRING([--enable-cryptodev], [enable cryptodev support]), enable_cryptodev=$enableval,enable_cryptodev=no) AC_MSG_RESULT($enable_cryptodev) if test "$enable_cryptodev" = "yes"; then AC_DEFINE([ENABLE_CRYPTODEV], 1, [Enable cryptodev support]) fi AC_MSG_CHECKING([whether to disable OCSP support]) AC_ARG_ENABLE(ocsp, AS_HELP_STRING([--disable-ocsp], [disable OCSP support]), ac_enable_ocsp=$enableval,ac_enable_ocsp=yes) if test x$ac_enable_ocsp != xno; then ac_enable_ocsp=yes AC_MSG_RESULT(no) AC_DEFINE([ENABLE_OCSP], 1, [enable OCSP support]) else ac_full=0 AC_MSG_RESULT(yes) fi AM_CONDITIONAL(ENABLE_OCSP, test "$ac_enable_ocsp" != "no") # For storing integers in pointers without warnings # https://developer.gnome.org/doc/API/2.0/glib/glib-Type-Conversion-Macros.html#desc AC_CHECK_SIZEOF(void *) AC_CHECK_SIZEOF(long long) AC_CHECK_SIZEOF(long) AC_CHECK_SIZEOF(int) if test x$ac_cv_sizeof_void_p = x$ac_cv_sizeof_long;then AC_DEFINE([GNUTLS_POINTER_TO_INT_CAST], [(long)], [Additional cast to bring void* to a type castable to int.]) elif test x$ac_cv_sizeof_void_p = x$ac_cv_sizeof_long_long;then AC_DEFINE([GNUTLS_POINTER_TO_INT_CAST], [(long long)], [Additional cast to bring void* to a type castable to int.]) else AC_DEFINE([GNUTLS_POINTER_TO_INT_CAST], []) fi dnl this is called from somewhere else dnl #AM_ICONV dnl m4_ifdef([gl_ICONV_MODULE_INDICATOR], dnl [gl_ICONV_MODULE_INDICATOR([iconv])]) ]) # host-cpu-c-abi.m4 serial 13 dnl Copyright (C) 2002-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible and Sam Steingold. dnl Sets the HOST_CPU variable to the canonical name of the CPU. dnl Sets the HOST_CPU_C_ABI variable to the canonical name of the CPU with its dnl C language ABI (application binary interface). dnl Also defines __${HOST_CPU}__ and __${HOST_CPU_C_ABI}__ as C macros in dnl config.h. dnl dnl This canonical name can be used to select a particular assembly language dnl source file that will interoperate with C code on the given host. dnl dnl For example: dnl * 'i386' and 'sparc' are different canonical names, because code for i386 dnl will not run on SPARC CPUs and vice versa. They have different dnl instruction sets. dnl * 'sparc' and 'sparc64' are different canonical names, because code for dnl 'sparc' and code for 'sparc64' cannot be linked together: 'sparc' code dnl contains 32-bit instructions, whereas 'sparc64' code contains 64-bit dnl instructions. A process on a SPARC CPU can be in 32-bit mode or in 64-bit dnl mode, but not both. dnl * 'mips' and 'mipsn32' are different canonical names, because they use dnl different argument passing and return conventions for C functions, and dnl although the instruction set of 'mips' is a large subset of the dnl instruction set of 'mipsn32'. dnl * 'mipsn32' and 'mips64' are different canonical names, because they use dnl different sizes for the C types like 'int' and 'void *', and although dnl the instruction sets of 'mipsn32' and 'mips64' are the same. dnl * The same canonical name is used for different endiannesses. You can dnl determine the endianness through preprocessor symbols: dnl - 'arm': test __ARMEL__. dnl - 'mips', 'mipsn32', 'mips64': test _MIPSEB vs. _MIPSEL. dnl - 'powerpc64': test _BIG_ENDIAN vs. _LITTLE_ENDIAN. dnl * The same name 'i386' is used for CPUs of type i386, i486, i586 dnl (Pentium), AMD K7, Pentium II, Pentium IV, etc., because dnl - Instructions that do not exist on all of these CPUs (cmpxchg, dnl MMX, SSE, SSE2, 3DNow! etc.) are not frequently used. If your dnl assembly language source files use such instructions, you will dnl need to make the distinction. dnl - Speed of execution of the common instruction set is reasonable across dnl the entire family of CPUs. If you have assembly language source files dnl that are optimized for particular CPU types (like GNU gmp has), you dnl will need to make the distinction. dnl See . AC_DEFUN([gl_HOST_CPU_C_ABI], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_C_ASM]) AC_CACHE_CHECK([host CPU and C ABI], [gl_cv_host_cpu_c_abi], [case "$host_cpu" in changequote(,)dnl i[34567]86 ) changequote([,])dnl gl_cv_host_cpu_c_abi=i386 ;; x86_64 ) # On x86_64 systems, the C compiler may be generating code in one of # these ABIs: # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64. # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64 # with native Windows (mingw, MSVC). # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32. # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if (defined __x86_64__ || defined __amd64__ \ || defined _M_X64 || defined _M_AMD64) int ok; #else error fail #endif ]])], [AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined __ILP32__ || defined _ILP32 int ok; #else error fail #endif ]])], [gl_cv_host_cpu_c_abi=x86_64-x32], [gl_cv_host_cpu_c_abi=x86_64])], [gl_cv_host_cpu_c_abi=i386]) ;; changequote(,)dnl alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] ) changequote([,])dnl gl_cv_host_cpu_c_abi=alpha ;; arm* | aarch64 ) # Assume arm with EABI. # On arm64 systems, the C compiler may be generating code in one of # these ABIs: # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64. # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32. # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#ifdef __aarch64__ int ok; #else error fail #endif ]])], [AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined __ILP32__ || defined _ILP32 int ok; #else error fail #endif ]])], [gl_cv_host_cpu_c_abi=arm64-ilp32], [gl_cv_host_cpu_c_abi=arm64])], [# Don't distinguish little-endian and big-endian arm, since they # don't require different machine code for simple operations and # since the user can distinguish them through the preprocessor # defines __ARMEL__ vs. __ARMEB__. # But distinguish arm which passes floating-point arguments and # return values in integer registers (r0, r1, ...) - this is # gcc -mfloat-abi=soft or gcc -mfloat-abi=softfp - from arm which # passes them in float registers (s0, s1, ...) and double registers # (d0, d1, ...) - this is gcc -mfloat-abi=hard. GCC 4.6 or newer # sets the preprocessor defines __ARM_PCS (for the first case) and # __ARM_PCS_VFP (for the second case), but older GCC does not. echo 'double ddd; void func (double dd) { ddd = dd; }' > conftest.c # Look for a reference to the register d0 in the .s file. AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c) >/dev/null 2>&1 if LC_ALL=C grep 'd0,' conftest.$gl_asmext >/dev/null; then gl_cv_host_cpu_c_abi=armhf else gl_cv_host_cpu_c_abi=arm fi rm -f conftest* ]) ;; hppa1.0 | hppa1.1 | hppa2.0* | hppa64 ) # On hppa, the C compiler may be generating 32-bit code or 64-bit # code. In the latter case, it defines _LP64 and __LP64__. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#ifdef __LP64__ int ok; #else error fail #endif ]])], [gl_cv_host_cpu_c_abi=hppa64], [gl_cv_host_cpu_c_abi=hppa]) ;; ia64* ) # On ia64 on HP-UX, the C compiler may be generating 64-bit code or # 32-bit code. In the latter case, it defines _ILP32. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#ifdef _ILP32 int ok; #else error fail #endif ]])], [gl_cv_host_cpu_c_abi=ia64-ilp32], [gl_cv_host_cpu_c_abi=ia64]) ;; mips* ) # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this # at 32. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64) int ok; #else error fail #endif ]])], [gl_cv_host_cpu_c_abi=mips64], [# In the n32 ABI, _ABIN32 is defined, _ABIO32 is not defined (but # may later get defined by ), and _MIPS_SIM == _ABIN32. # In the 32 ABI, _ABIO32 is defined, _ABIN32 is not defined (but # may later get defined by ), and _MIPS_SIM == _ABIO32. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if (_MIPS_SIM == _ABIN32) int ok; #else error fail #endif ]])], [gl_cv_host_cpu_c_abi=mipsn32], [gl_cv_host_cpu_c_abi=mips])]) ;; powerpc* ) # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD. # No need to distinguish them here; the caller may distinguish # them based on the OS. # On powerpc64 systems, the C compiler may still be generating # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may # be generating 64-bit code. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined __powerpc64__ || defined _ARCH_PPC64 int ok; #else error fail #endif ]])], [# On powerpc64, there are two ABIs on Linux: The AIX compatible # one and the ELFv2 one. The latter defines _CALL_ELF=2. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined _CALL_ELF && _CALL_ELF == 2 int ok; #else error fail #endif ]])], [gl_cv_host_cpu_c_abi=powerpc64-elfv2], [gl_cv_host_cpu_c_abi=powerpc64]) ], [gl_cv_host_cpu_c_abi=powerpc]) ;; rs6000 ) gl_cv_host_cpu_c_abi=powerpc ;; riscv32 | riscv64 ) # There are 2 architectures (with variants): rv32* and rv64*. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if __riscv_xlen == 64 int ok; #else error fail #endif ]])], [cpu=riscv64], [cpu=riscv32]) # There are 6 ABIs: ilp32, ilp32f, ilp32d, lp64, lp64f, lp64d. # Size of 'long' and 'void *': AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined __LP64__ int ok; #else error fail #endif ]])], [main_abi=lp64], [main_abi=ilp32]) # Float ABIs: # __riscv_float_abi_double: # 'float' and 'double' are passed in floating-point registers. # __riscv_float_abi_single: # 'float' are passed in floating-point registers. # __riscv_float_abi_soft: # No values are passed in floating-point registers. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined __riscv_float_abi_double int ok; #else error fail #endif ]])], [float_abi=d], [AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined __riscv_float_abi_single int ok; #else error fail #endif ]])], [float_abi=f], [float_abi='']) ]) gl_cv_host_cpu_c_abi="${cpu}-${main_abi}${float_abi}" ;; s390* ) # On s390x, the C compiler may be generating 64-bit (= s390x) code # or 31-bit (= s390) code. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined __LP64__ || defined __s390x__ int ok; #else error fail #endif ]])], [gl_cv_host_cpu_c_abi=s390x], [gl_cv_host_cpu_c_abi=s390]) ;; sparc | sparc64 ) # UltraSPARCs running Linux have `uname -m` = "sparc64", but the # C compiler still generates 32-bit code. AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if defined __sparcv9 || defined __arch64__ int ok; #else error fail #endif ]])], [gl_cv_host_cpu_c_abi=sparc64], [gl_cv_host_cpu_c_abi=sparc]) ;; *) gl_cv_host_cpu_c_abi="$host_cpu" ;; esac ]) dnl In most cases, $HOST_CPU and $HOST_CPU_C_ABI are the same. HOST_CPU=`echo "$gl_cv_host_cpu_c_abi" | sed -e 's/-.*//'` HOST_CPU_C_ABI="$gl_cv_host_cpu_c_abi" AC_SUBST([HOST_CPU]) AC_SUBST([HOST_CPU_C_ABI]) # This was # AC_DEFINE_UNQUOTED([__${HOST_CPU}__]) # AC_DEFINE_UNQUOTED([__${HOST_CPU_C_ABI}__]) # earlier, but KAI C++ 3.2d doesn't like this. sed -e 's/-/_/g' >> confdefs.h <. dnl Additionally, with this same compiler, include_next is a no-op when dnl used in a header file that was included by specifying its absolute dnl file name. Despite these two bugs, include_next is used in the dnl compiler's . By virtue of the second bug, we need to use dnl include_next as well in this case. cat < conftestd1a/conftest.h #define DEFINED_IN_CONFTESTD1 #include_next #ifdef DEFINED_IN_CONFTESTD2 int foo; #else #error "include_next doesn't work" #endif EOF cat < conftestd1b/conftest.h #define DEFINED_IN_CONFTESTD1 #include #include_next #ifdef DEFINED_IN_CONFTESTD2 int foo; #else #error "include_next doesn't work" #endif EOF cat < conftestd2/conftest.h #ifndef DEFINED_IN_CONFTESTD1 #error "include_next test doesn't work" #endif #define DEFINED_IN_CONFTESTD2 EOF gl_save_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$gl_save_CPPFLAGS -Iconftestd1b -Iconftestd2" dnl We intentionally avoid using AC_LANG_SOURCE here. AC_COMPILE_IFELSE([AC_LANG_DEFINES_PROVIDED[#include ]], [gl_cv_have_include_next=yes], [CPPFLAGS="$gl_save_CPPFLAGS -Iconftestd1a -Iconftestd2" AC_COMPILE_IFELSE([AC_LANG_DEFINES_PROVIDED[#include ]], [gl_cv_have_include_next=buggy], [gl_cv_have_include_next=no]) ]) CPPFLAGS="$gl_save_CPPFLAGS" rm -rf conftestd1a conftestd1b conftestd2 ]) PRAGMA_SYSTEM_HEADER= if test $gl_cv_have_include_next = yes; then INCLUDE_NEXT=include_next INCLUDE_NEXT_AS_FIRST_DIRECTIVE=include_next if test -n "$GCC"; then PRAGMA_SYSTEM_HEADER='#pragma GCC system_header' fi else if test $gl_cv_have_include_next = buggy; then INCLUDE_NEXT=include INCLUDE_NEXT_AS_FIRST_DIRECTIVE=include_next else INCLUDE_NEXT=include INCLUDE_NEXT_AS_FIRST_DIRECTIVE=include fi fi AC_SUBST([INCLUDE_NEXT]) AC_SUBST([INCLUDE_NEXT_AS_FIRST_DIRECTIVE]) AC_SUBST([PRAGMA_SYSTEM_HEADER]) AC_CACHE_CHECK([whether system header files limit the line length], [gl_cv_pragma_columns], [dnl HP NonStop systems, which define __TANDEM, have this misfeature. AC_EGREP_CPP([choke me], [ #ifdef __TANDEM choke me #endif ], [gl_cv_pragma_columns=yes], [gl_cv_pragma_columns=no]) ]) if test $gl_cv_pragma_columns = yes; then PRAGMA_COLUMNS="#pragma COLUMNS 10000" else PRAGMA_COLUMNS= fi AC_SUBST([PRAGMA_COLUMNS]) ]) # gl_CHECK_NEXT_HEADERS(HEADER1 HEADER2 ...) # ------------------------------------------ # For each arg foo.h, if #include_next works, define NEXT_FOO_H to be # ''; otherwise define it to be # '"///usr/include/foo.h"', or whatever other absolute file name is suitable. # Also, if #include_next works as first preprocessing directive in a file, # define NEXT_AS_FIRST_DIRECTIVE_FOO_H to be ''; otherwise define it to # be # '"///usr/include/foo.h"', or whatever other absolute file name is suitable. # That way, a header file with the following line: # #@INCLUDE_NEXT@ @NEXT_FOO_H@ # or # #@INCLUDE_NEXT_AS_FIRST_DIRECTIVE@ @NEXT_AS_FIRST_DIRECTIVE_FOO_H@ # behaves (after sed substitution) as if it contained # #include_next # even if the compiler does not support include_next. # The three "///" are to pacify Sun C 5.8, which otherwise would say # "warning: #include of /usr/include/... may be non-portable". # Use '""', not '<>', so that the /// cannot be confused with a C99 comment. # Note: This macro assumes that the header file is not empty after # preprocessing, i.e. it does not only define preprocessor macros but also # provides some type/enum definitions or function/variable declarations. # # This macro also checks whether each header exists, by invoking # AC_CHECK_HEADERS_ONCE or AC_CHECK_HEADERS on each argument. AC_DEFUN([gl_CHECK_NEXT_HEADERS], [ gl_NEXT_HEADERS_INTERNAL([$1], [check]) ]) # gl_NEXT_HEADERS(HEADER1 HEADER2 ...) # ------------------------------------ # Like gl_CHECK_NEXT_HEADERS, except do not check whether the headers exist. # This is suitable for headers like that are standardized by C89 # and therefore can be assumed to exist. AC_DEFUN([gl_NEXT_HEADERS], [ gl_NEXT_HEADERS_INTERNAL([$1], [assume]) ]) # The guts of gl_CHECK_NEXT_HEADERS and gl_NEXT_HEADERS. AC_DEFUN([gl_NEXT_HEADERS_INTERNAL], [ AC_REQUIRE([gl_INCLUDE_NEXT]) AC_REQUIRE([AC_CANONICAL_HOST]) m4_if([$2], [check], [AC_CHECK_HEADERS_ONCE([$1]) ]) dnl FIXME: gl_next_header and gl_header_exists must be used unquoted dnl until we can assume autoconf 2.64 or newer. m4_foreach_w([gl_HEADER_NAME], [$1], [AS_VAR_PUSHDEF([gl_next_header], [gl_cv_next_]m4_defn([gl_HEADER_NAME])) if test $gl_cv_have_include_next = yes; then AS_VAR_SET(gl_next_header, ['<'gl_HEADER_NAME'>']) else AC_CACHE_CHECK( [absolute name of <]m4_defn([gl_HEADER_NAME])[>], m4_defn([gl_next_header]), [m4_if([$2], [check], [AS_VAR_PUSHDEF([gl_header_exists], [ac_cv_header_]m4_defn([gl_HEADER_NAME])) if test AS_VAR_GET(gl_header_exists) = yes; then AS_VAR_POPDEF([gl_header_exists]) ]) gl_ABSOLUTE_HEADER_ONE(gl_HEADER_NAME) AS_VAR_COPY([gl_header], [gl_cv_absolute_]AS_TR_SH(gl_HEADER_NAME)) AS_VAR_SET(gl_next_header, ['"'$gl_header'"']) m4_if([$2], [check], [else AS_VAR_SET(gl_next_header, ['<'gl_HEADER_NAME'>']) fi ]) ]) fi AC_SUBST( AS_TR_CPP([NEXT_]m4_defn([gl_HEADER_NAME])), [AS_VAR_GET(gl_next_header)]) if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next' gl_next_as_first_directive='<'gl_HEADER_NAME'>' else # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include' gl_next_as_first_directive=AS_VAR_GET(gl_next_header) fi AC_SUBST( AS_TR_CPP([NEXT_AS_FIRST_DIRECTIVE_]m4_defn([gl_HEADER_NAME])), [$gl_next_as_first_directive]) AS_VAR_POPDEF([gl_next_header])]) ]) # Autoconf 2.68 added warnings for our use of AC_COMPILE_IFELSE; # this fallback is safe for all earlier autoconf versions. m4_define_default([AC_LANG_DEFINES_PROVIDED]) # inet_ntop.m4 serial 21 dnl Copyright (C) 2005-2006, 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_INET_NTOP], [ AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS]) dnl Persuade Solaris to declare inet_ntop. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([AC_C_RESTRICT]) dnl Most platforms that provide inet_ntop define it in libc. dnl Solaris 8..10 provide inet_ntop in libnsl instead. dnl Solaris 2.6..7 provide inet_ntop in libresolv instead. dnl Haiku provides it in -lnetwork. dnl Native Windows provides it in -lws2_32 instead, with a declaration in dnl , and it uses stdcall calling convention, not cdecl dnl (hence we cannot use AC_CHECK_FUNCS, AC_SEARCH_LIBS to find it). HAVE_INET_NTOP=1 INET_NTOP_LIB= gl_PREREQ_SYS_H_WINSOCK2 if test $HAVE_WINSOCK2_H = 1; then dnl It needs to be overridden, because the stdcall calling convention dnl is not compliant with POSIX. Set REPLACE_INET_NTOP in order to avoid dnl a name conflict at the linker level, even though the header file dnl declares inet_ntop only if _WIN32_WINNT >= 0x0600. REPLACE_INET_NTOP=1 AC_CHECK_DECLS([inet_ntop],,, [[#include ]]) if test $ac_cv_have_decl_inet_ntop = yes; then INET_NTOP_LIB="-lws2_32" else HAVE_DECL_INET_NTOP=0 fi else gl_save_LIBS=$LIBS AC_SEARCH_LIBS([inet_ntop], [nsl resolv network], [], [AC_CHECK_FUNCS([inet_ntop]) if test $ac_cv_func_inet_ntop = no; then HAVE_INET_NTOP=0 fi ]) LIBS=$gl_save_LIBS if test "$ac_cv_search_inet_ntop" != "no" \ && test "$ac_cv_search_inet_ntop" != "none required"; then INET_NTOP_LIB="$ac_cv_search_inet_ntop" fi AC_CHECK_HEADERS_ONCE([netdb.h]) AC_CHECK_DECLS([inet_ntop],,, [[#include #if HAVE_NETDB_H # include #endif ]]) if test $ac_cv_have_decl_inet_ntop = no; then HAVE_DECL_INET_NTOP=0 fi fi AC_SUBST([INET_NTOP_LIB]) ]) # Prerequisites of lib/inet_ntop.c. AC_DEFUN([gl_PREREQ_INET_NTOP], [ AC_REQUIRE([gl_SOCKET_FAMILIES]) ]) # inet_pton.m4 serial 19 dnl Copyright (C) 2006, 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_INET_PTON], [ AC_REQUIRE([gl_ARPA_INET_H_DEFAULTS]) dnl Persuade Solaris to declare inet_pton. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([AC_C_RESTRICT]) dnl Most platforms that provide inet_pton define it in libc. dnl Solaris 8..10 provide inet_pton in libnsl instead. dnl Solaris 2.6..7 provide inet_pton in libresolv instead. dnl Haiku provides it in -lnetwork. dnl Native Windows provides it in -lws2_32 instead, with a declaration in dnl , and it uses stdcall calling convention, not cdecl dnl (hence we cannot use AC_CHECK_FUNCS, AC_SEARCH_LIBS to find it). HAVE_INET_PTON=1 INET_PTON_LIB= gl_PREREQ_SYS_H_WINSOCK2 if test $HAVE_WINSOCK2_H = 1; then dnl It needs to be overridden, because the stdcall calling convention dnl is not compliant with POSIX. Set REPLACE_INET_PTON in order to avoid dnl a name conflict at the linker level, even though the header file dnl declares inet_pton only if _WIN32_WINNT >= 0x0600. REPLACE_INET_PTON=1 AC_CHECK_DECLS([inet_pton],,, [[#include ]]) if test $ac_cv_have_decl_inet_pton = yes; then INET_PTON_LIB="-lws2_32" else HAVE_DECL_INET_PTON=0 fi else gl_save_LIBS=$LIBS AC_SEARCH_LIBS([inet_pton], [nsl resolv network], [], [AC_CHECK_FUNCS([inet_pton]) if test $ac_cv_func_inet_pton = no; then HAVE_INET_PTON=0 fi ]) LIBS=$gl_save_LIBS if test "$ac_cv_search_inet_pton" != "no" \ && test "$ac_cv_search_inet_pton" != "none required"; then INET_PTON_LIB="$ac_cv_search_inet_pton" fi AC_CHECK_HEADERS_ONCE([netdb.h]) AC_CHECK_DECLS([inet_pton],,, [[#include #if HAVE_NETDB_H # include #endif ]]) if test $ac_cv_have_decl_inet_pton = no; then HAVE_DECL_INET_PTON=0 fi fi AC_SUBST([INET_PTON_LIB]) ]) # Prerequisites of lib/inet_pton.c. AC_DEFUN([gl_PREREQ_INET_PTON], [ AC_REQUIRE([gl_SOCKET_FAMILIES]) ]) # intl-thread-locale.m4 serial 8 dnl Copyright (C) 2015-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl dnl This file can be used in projects which are not available under dnl the GNU General Public License or the GNU Lesser General Public dnl License but which still want to provide support for the GNU gettext dnl functionality. dnl Please note that the actual code of the GNU gettext library is covered dnl by the GNU Lesser General Public License, and the rest of the GNU dnl gettext package is covered by the GNU General Public License. dnl They are *not* in the public domain. dnl Check how to retrieve the name of a per-thread locale (POSIX locale_t). dnl Sets gt_nameless_locales. AC_DEFUN([gt_INTL_THREAD_LOCALE_NAME], [ AC_REQUIRE([AC_CANONICAL_HOST]) dnl Persuade Solaris to define 'locale_t'. AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl Test whether uselocale() exists and works at all. gt_FUNC_USELOCALE dnl On OpenBSD >= 6.2, the locale_t type and the uselocale(), newlocale(), dnl duplocale(), freelocale() functions exist but are effectively useless, dnl because the locale_t value depends only on the LC_CTYPE category of the dnl locale and furthermore contains only one bit of information (it dnl distinguishes the "C" locale from the *.UTF-8 locales). See dnl . dnl In the setlocale() implementation they have thought about the programs dnl that use the API ("Even though only LC_CTYPE has any effect in the dnl OpenBSD base system, store complete information about the global locale, dnl such that third-party software can access it"), but for uselocale() dnl they did not think about the programs. dnl In this situation, even the HAVE_NAMELESS_LOCALES support does not work. dnl So, define HAVE_FAKE_LOCALES and disable all locale_t support. case "$gt_cv_func_uselocale_works" in *yes) AC_CHECK_HEADERS_ONCE([xlocale.h]) AC_CACHE_CHECK([for fake locale system (OpenBSD)], [gt_cv_locale_fake], [AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #if HAVE_XLOCALE_H # include #endif int main () { locale_t loc1, loc2; if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL) return 1; if (setlocale (LC_ALL, "fr_FR.UTF-8") == NULL) return 1; loc1 = newlocale (LC_ALL_MASK, "de_DE.UTF-8", (locale_t)0); loc2 = newlocale (LC_ALL_MASK, "fr_FR.UTF-8", (locale_t)0); return !(loc1 == loc2); }]])], [gt_cv_locale_fake=yes], [gt_cv_locale_fake=no], [dnl Guess the locale system is fake only on OpenBSD. case "$host_os" in openbsd*) gt_cv_locale_fake="guessing yes" ;; *) gt_cv_locale_fake="guessing no" ;; esac ]) ]) ;; *) gt_cv_locale_fake=no ;; esac case "$gt_cv_locale_fake" in *yes) AC_DEFINE([HAVE_FAKE_LOCALES], [1], [Define if the locale_t type contains insufficient information, as on OpenBSD.]) ;; esac case "$gt_cv_func_uselocale_works" in *yes) AC_CACHE_CHECK([for Solaris 11.4 locale system], [gt_cv_locale_solaris114], [case "$host_os" in solaris*) dnl Test whether defines locale_t as a typedef of dnl 'struct _LC_locale_t **' (whereas Illumos defines it as a dnl typedef of 'struct _locale *'). dnl Another possible test would be to include dnl and test whether it defines the _LC_core_data_locale_t type. dnl This type was added in Solaris 11.4. AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ #include struct _LC_locale_t *x; locale_t y; ]], [[*y = x;]])], [gt_cv_locale_solaris114=yes], [gt_cv_locale_solaris114=no]) ;; *) gt_cv_locale_solaris114=no ;; esac ]) ;; *) gt_cv_locale_solaris114=no ;; esac if test $gt_cv_locale_solaris114 = yes; then AC_DEFINE([HAVE_SOLARIS114_LOCALES], [1], [Define if the locale_t type is as on Solaris 11.4.]) fi dnl Solaris 12 will maybe provide getlocalename_l. If it does, it will dnl improve the implementation of gl_locale_name_thread(), by removing dnl the use of undocumented structures. case "$gt_cv_func_uselocale_works" in *yes) AC_CHECK_FUNCS([getlocalename_l]) ;; esac dnl This code is for platforms where the locale_t type does not provide access dnl to the name of each locale category. This code has the drawback that it dnl requires the gnulib overrides of 'newlocale', 'duplocale', 'freelocale', dnl which is a problem for GNU libunistring. Therefore try hard to avoid dnl enabling this code! gt_nameless_locales=no case "$host_os" in dnl It's needed on AIX 7.2. aix*) gt_nameless_locales=yes AC_DEFINE([HAVE_NAMELESS_LOCALES], [1], [Define if the locale_t type does not contain the name of each locale category.]) ;; esac ]) dnl Tests whether uselocale() exists and is usable. dnl Sets gt_cv_func_uselocale_works. Defines HAVE_WORKING_USELOCALE. AC_DEFUN([gt_FUNC_USELOCALE], [ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl Persuade glibc and Solaris to define 'locale_t'. AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([uselocale]) dnl On AIX 7.2, the uselocale() function is not documented and leads to dnl crashes in subsequent setlocale() invocations. dnl In 2019, some versions of z/OS lack the locale_t type and have a broken dnl uselocale function. if test $ac_cv_func_uselocale = yes; then AC_CHECK_HEADERS_ONCE([xlocale.h]) AC_CACHE_CHECK([whether uselocale works], [gt_cv_func_uselocale_works], [AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #if HAVE_XLOCALE_H # include #endif locale_t loc1; int main () { uselocale (NULL); setlocale (LC_ALL, "en_US.UTF-8"); return 0; }]])], [gt_cv_func_uselocale_works=yes], [gt_cv_func_uselocale_works=no], [# Guess no on AIX and z/OS, yes otherwise. case "$host_os" in aix* | openedition*) gt_cv_func_uselocale_works="guessing no" ;; *) gt_cv_func_uselocale_works="guessing yes" ;; esac ]) ]) else gt_cv_func_uselocale_works=no fi case "$gt_cv_func_uselocale_works" in *yes) AC_DEFINE([HAVE_WORKING_USELOCALE], [1], [Define if the uselocale function exists any may safely be called.]) ;; esac ]) # intlmacosx.m4 serial 8 (gettext-0.20.2) dnl Copyright (C) 2004-2014, 2016, 2019-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl dnl This file can be used in projects which are not available under dnl the GNU General Public License or the GNU Lesser General Public dnl License but which still want to provide support for the GNU gettext dnl functionality. dnl Please note that the actual code of the GNU gettext library is covered dnl by the GNU Lesser General Public License, and the rest of the GNU dnl gettext package is covered by the GNU General Public License. dnl They are *not* in the public domain. dnl Checks for special options needed on Mac OS X. dnl Defines INTL_MACOSX_LIBS. AC_DEFUN([gt_INTL_MACOSX], [ dnl Check for API introduced in Mac OS X 10.4. AC_CACHE_CHECK([for CFPreferencesCopyAppValue], [gt_cv_func_CFPreferencesCopyAppValue], [gt_save_LIBS="$LIBS" LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation" AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[CFPreferencesCopyAppValue(NULL, NULL)]])], [gt_cv_func_CFPreferencesCopyAppValue=yes], [gt_cv_func_CFPreferencesCopyAppValue=no]) LIBS="$gt_save_LIBS"]) if test $gt_cv_func_CFPreferencesCopyAppValue = yes; then AC_DEFINE([HAVE_CFPREFERENCESCOPYAPPVALUE], [1], [Define to 1 if you have the Mac OS X function CFPreferencesCopyAppValue in the CoreFoundation framework.]) fi dnl Don't check for the API introduced in Mac OS X 10.5, CFLocaleCopyCurrent, dnl because in macOS 10.13.4 it has the following behaviour: dnl When two or more languages are specified in the dnl "System Preferences > Language & Region > Preferred Languages" panel, dnl it returns en_CC where CC is the territory (even when English is not among dnl the preferred languages!). What we want instead is what dnl CFLocaleCopyCurrent returned in earlier macOS releases and what dnl CFPreferencesCopyAppValue still returns, namely ll_CC where ll is the dnl first among the preferred languages and CC is the territory. AC_CACHE_CHECK([for CFLocaleCopyPreferredLanguages], [gt_cv_func_CFLocaleCopyPreferredLanguages], [gt_save_LIBS="$LIBS" LIBS="$LIBS -Wl,-framework -Wl,CoreFoundation" AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[CFLocaleCopyPreferredLanguages();]])], [gt_cv_func_CFLocaleCopyPreferredLanguages=yes], [gt_cv_func_CFLocaleCopyPreferredLanguages=no]) LIBS="$gt_save_LIBS"]) if test $gt_cv_func_CFLocaleCopyPreferredLanguages = yes; then AC_DEFINE([HAVE_CFLOCALECOPYPREFERREDLANGUAGES], [1], [Define to 1 if you have the Mac OS X function CFLocaleCopyPreferredLanguages in the CoreFoundation framework.]) fi INTL_MACOSX_LIBS= if test $gt_cv_func_CFPreferencesCopyAppValue = yes \ || test $gt_cv_func_CFLocaleCopyPreferredLanguages = yes; then INTL_MACOSX_LIBS="-Wl,-framework -Wl,CoreFoundation" fi AC_SUBST([INTL_MACOSX_LIBS]) ]) # intmax_t.m4 serial 9 dnl Copyright (C) 1997-2004, 2006-2007, 2009-2020 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert. AC_PREREQ([2.53]) # Define intmax_t to 'long' or 'long long' # if it is not already defined in or . AC_DEFUN([gl_AC_TYPE_INTMAX_T], [ dnl For simplicity, we assume that a header file defines 'intmax_t' if and dnl only if it defines 'uintmax_t'. AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) AC_REQUIRE([gl_AC_HEADER_STDINT_H]) if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then AC_DEFINE_UNQUOTED([intmax_t], [long long], [Define to long or long long if and don't define.]) else AC_DEFINE([HAVE_INTMAX_T], [1], [Define if you have the 'intmax_t' type in or .]) fi ]) dnl An alternative would be to explicitly test for 'intmax_t'. AC_DEFUN([gt_AC_TYPE_INTMAX_T], [ AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) AC_REQUIRE([gl_AC_HEADER_STDINT_H]) AC_CACHE_CHECK([for intmax_t], [gt_cv_c_intmax_t], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[ #include #include #if HAVE_STDINT_H_WITH_UINTMAX #include #endif #if HAVE_INTTYPES_H_WITH_UINTMAX #include #endif ]], [[intmax_t x = -1; return !x;]])], [gt_cv_c_intmax_t=yes], [gt_cv_c_intmax_t=no])]) if test $gt_cv_c_intmax_t = yes; then AC_DEFINE([HAVE_INTMAX_T], [1], [Define if you have the 'intmax_t' type in or .]) else AC_DEFINE_UNQUOTED([intmax_t], [long long], [Define to long or long long if and don't define.]) fi ]) #serial 8 dnl Copyright (C) 2004-2006, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_INTTOSTR], [ gl_PREREQ_INTTOSTR gl_PREREQ_IMAXTOSTR gl_PREREQ_OFFTOSTR gl_PREREQ_UMAXTOSTR gl_PREREQ_UINTTOSTR ]) # Prerequisites of lib/inttostr.h. AC_DEFUN([gl_PREREQ_INTTOSTR], [ AC_REQUIRE([AC_TYPE_OFF_T]) : ]) # Prerequisites of lib/imaxtostr.c. AC_DEFUN([gl_PREREQ_IMAXTOSTR], [:]) # Prerequisites of lib/offtostr.c. AC_DEFUN([gl_PREREQ_OFFTOSTR], [:]) # Prerequisites of lib/umaxtostr.c. AC_DEFUN([gl_PREREQ_UMAXTOSTR], [:]) # Prerequisites of lib/uinttostr.c. AC_DEFUN([gl_PREREQ_UINTTOSTR], [:]) # inttypes-pri.m4 serial 7 (gettext-0.18.2) dnl Copyright (C) 1997-2002, 2006, 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. AC_PREREQ([2.53]) # Define PRI_MACROS_BROKEN if exists and defines the PRI* # macros to non-string values. This is the case on AIX 4.3.3. AC_DEFUN([gt_INTTYPES_PRI], [ AC_CHECK_HEADERS([inttypes.h]) if test $ac_cv_header_inttypes_h = yes; then AC_CACHE_CHECK([whether the inttypes.h PRIxNN macros are broken], [gt_cv_inttypes_pri_broken], [ AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[ #include #ifdef PRId32 char *p = PRId32; #endif ]], [[]])], [gt_cv_inttypes_pri_broken=no], [gt_cv_inttypes_pri_broken=yes]) ]) fi if test "$gt_cv_inttypes_pri_broken" = yes; then AC_DEFINE_UNQUOTED([PRI_MACROS_BROKEN], [1], [Define if exists and defines unusable PRI* macros.]) PRI_MACROS_BROKEN=1 else PRI_MACROS_BROKEN=0 fi AC_SUBST([PRI_MACROS_BROKEN]) ]) # inttypes.m4 serial 29 dnl Copyright (C) 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Derek Price, Bruno Haible. dnl Test whether is supported or must be substituted. AC_DEFUN([gl_INTTYPES_H], [ AC_REQUIRE([gl_INTTYPES_INCOMPLETE]) gl_INTTYPES_PRI_SCN ]) AC_DEFUN_ONCE([gl_INTTYPES_INCOMPLETE], [ AC_REQUIRE([gl_STDINT_H]) AC_CHECK_HEADERS_ONCE([inttypes.h]) dnl Override always, so that the portability warnings work. AC_REQUIRE([gl_INTTYPES_H_DEFAULTS]) gl_CHECK_NEXT_HEADERS([inttypes.h]) AC_REQUIRE([gl_MULTIARCH]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include ]], [imaxabs imaxdiv strtoimax strtoumax]) AC_REQUIRE([AC_C_RESTRICT]) ]) # Ensure that the PRI* and SCN* macros are defined appropriately. AC_DEFUN([gl_INTTYPES_PRI_SCN], [ AC_REQUIRE([gt_INTTYPES_PRI]) PRIPTR_PREFIX= if test -n "$STDINT_H"; then dnl Using the gnulib . It always defines intptr_t to 'long'. PRIPTR_PREFIX='"l"' else dnl Using the system's . for glpfx in '' l ll I64; do case $glpfx in '') gltype1='int';; l) gltype1='long int';; ll) gltype1='long long int';; I64) gltype1='__int64';; esac AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#include extern intptr_t foo; extern $gltype1 foo;]])], [PRIPTR_PREFIX='"'$glpfx'"']) test -n "$PRIPTR_PREFIX" && break done fi AC_SUBST([PRIPTR_PREFIX]) gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION( [INT32_MAX_LT_INTMAX_MAX], [defined INT32_MAX && defined INTMAX_MAX], [INT32_MAX < INTMAX_MAX], [sizeof (int) < sizeof (long long int)]) if test $APPLE_UNIVERSAL_BUILD = 0; then gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION( [INT64_MAX_EQ_LONG_MAX], [defined INT64_MAX], [INT64_MAX == LONG_MAX], [sizeof (long long int) == sizeof (long int)]) else INT64_MAX_EQ_LONG_MAX=-1 fi gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION( [UINT32_MAX_LT_UINTMAX_MAX], [defined UINT32_MAX && defined UINTMAX_MAX], [UINT32_MAX < UINTMAX_MAX], [sizeof (unsigned int) < sizeof (unsigned long long int)]) if test $APPLE_UNIVERSAL_BUILD = 0; then gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION( [UINT64_MAX_EQ_ULONG_MAX], [defined UINT64_MAX], [UINT64_MAX == ULONG_MAX], [sizeof (unsigned long long int) == sizeof (unsigned long int)]) else UINT64_MAX_EQ_ULONG_MAX=-1 fi ]) # Define the symbol $1 to be 1 if the condition is true, 0 otherwise. # If $2 is true, the condition is $3; otherwise if long long int is supported # approximate the condition with $4; otherwise, assume the condition is false. # The condition should work on all C99 platforms; the approximations should be # good enough to work on all practical pre-C99 platforms. # $2 is evaluated by the C preprocessor, $3 and $4 as compile-time constants. AC_DEFUN([gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION], [ AC_CACHE_CHECK([whether $3], [gl_cv_test_$1], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[/* Work also in C++ mode. */ #define __STDC_LIMIT_MACROS 1 /* Work if build is not clean. */ #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H #include #if HAVE_STDINT_H #include #endif #if $2 #define CONDITION ($3) #else #define CONDITION ($4) #endif int test[CONDITION ? 1 : -1];]])], [gl_cv_test_$1=yes], [gl_cv_test_$1=no])]) if test $gl_cv_test_$1 = yes; then $1=1; else $1=0; fi AC_SUBST([$1]) ]) AC_DEFUN([gl_INTTYPES_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_INTTYPES_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) ]) AC_DEFUN([gl_INTTYPES_H_DEFAULTS], [ GNULIB_IMAXABS=0; AC_SUBST([GNULIB_IMAXABS]) GNULIB_IMAXDIV=0; AC_SUBST([GNULIB_IMAXDIV]) GNULIB_STRTOIMAX=0; AC_SUBST([GNULIB_STRTOIMAX]) GNULIB_STRTOUMAX=0; AC_SUBST([GNULIB_STRTOUMAX]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_DECL_IMAXABS=1; AC_SUBST([HAVE_DECL_IMAXABS]) HAVE_DECL_IMAXDIV=1; AC_SUBST([HAVE_DECL_IMAXDIV]) HAVE_DECL_STRTOIMAX=1; AC_SUBST([HAVE_DECL_STRTOIMAX]) HAVE_DECL_STRTOUMAX=1; AC_SUBST([HAVE_DECL_STRTOUMAX]) HAVE_IMAXDIV_T=1; AC_SUBST([HAVE_IMAXDIV_T]) REPLACE_STRTOIMAX=0; AC_SUBST([REPLACE_STRTOIMAX]) REPLACE_STRTOUMAX=0; AC_SUBST([REPLACE_STRTOUMAX]) INT32_MAX_LT_INTMAX_MAX=1; AC_SUBST([INT32_MAX_LT_INTMAX_MAX]) INT64_MAX_EQ_LONG_MAX='defined _LP64'; AC_SUBST([INT64_MAX_EQ_LONG_MAX]) PRI_MACROS_BROKEN=0; AC_SUBST([PRI_MACROS_BROKEN]) PRIPTR_PREFIX=__PRIPTR_PREFIX; AC_SUBST([PRIPTR_PREFIX]) UINT32_MAX_LT_UINTMAX_MAX=1; AC_SUBST([UINT32_MAX_LT_UINTMAX_MAX]) UINT64_MAX_EQ_ULONG_MAX='defined _LP64'; AC_SUBST([UINT64_MAX_EQ_ULONG_MAX]) ]) # inttypes_h.m4 serial 10 dnl Copyright (C) 1997-2004, 2006, 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert. # Define HAVE_INTTYPES_H_WITH_UINTMAX if exists, # doesn't clash with , and declares uintmax_t. AC_DEFUN([gl_AC_HEADER_INTTYPES_H], [ AC_CACHE_CHECK([for inttypes.h], [gl_cv_header_inttypes_h], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[ #include #include ]], [[uintmax_t i = (uintmax_t) -1; return !i;]])], [gl_cv_header_inttypes_h=yes], [gl_cv_header_inttypes_h=no])]) if test $gl_cv_header_inttypes_h = yes; then AC_DEFINE_UNQUOTED([HAVE_INTTYPES_H_WITH_UINTMAX], [1], [Define if exists, doesn't clash with , and declares uintmax_t. ]) fi ]) # ioctl.m4 serial 5 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_IOCTL], [ AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS]) AC_REQUIRE([gl_HEADER_SYS_SOCKET]) HAVE_IOCTL=1 if test "$ac_cv_header_winsock2_h" = yes; then dnl Even if the 'socket' module is not used here, another part of the dnl application may use it and pass file descriptors that refer to dnl sockets to the ioctl() function. So enable the support for sockets. HAVE_IOCTL=0 else AC_CHECK_FUNCS([ioctl]) dnl On glibc systems, the second parameter is 'unsigned long int request', dnl not 'int request'. We cannot simply cast the function pointer, but dnl instead need a wrapper. AC_CACHE_CHECK([for ioctl with POSIX signature], [gl_cv_func_ioctl_posix_signature], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include /* On some platforms, ioctl() is declared in . */ #include ]], [[extern #ifdef __cplusplus "C" #endif int ioctl (int, int, ...); ]]) ], [gl_cv_func_ioctl_posix_signature=yes], [gl_cv_func_ioctl_posix_signature=no]) ]) if test $gl_cv_func_ioctl_posix_signature != yes; then REPLACE_IOCTL=1 fi fi ]) # isblank.m4 serial 3 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_ISBLANK], [ dnl Persuade glibc to declare isblank(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_CTYPE_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([isblank]) if test $ac_cv_func_isblank = no; then HAVE_ISBLANK=0 fi ]) # langinfo_h.m4 serial 8 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_LANGINFO_H], [ AC_REQUIRE([gl_LANGINFO_H_DEFAULTS]) dnl Persuade glibc-2.0.6 to define CODESET. AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl is always overridden, because of GNULIB_POSIXCHECK. gl_CHECK_NEXT_HEADERS([langinfo.h]) dnl Determine whether exists. It is missing on mingw and BeOS. HAVE_LANGINFO_CODESET=0 HAVE_LANGINFO_T_FMT_AMPM=0 HAVE_LANGINFO_ALTMON=0 HAVE_LANGINFO_ERA=0 HAVE_LANGINFO_YESEXPR=0 AC_CHECK_HEADERS_ONCE([langinfo.h]) if test $ac_cv_header_langinfo_h = yes; then HAVE_LANGINFO_H=1 dnl Determine what defines. CODESET and ERA etc. are missing dnl on OpenBSD 3.8. T_FMT_AMPM and YESEXPR, NOEXPR are missing on IRIX 5.3. dnl ALTMON_* are missing on glibc 2.26 and many other systems. AC_CACHE_CHECK([whether langinfo.h defines CODESET], [gl_cv_header_langinfo_codeset], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#include int a = CODESET; ]])], [gl_cv_header_langinfo_codeset=yes], [gl_cv_header_langinfo_codeset=no]) ]) if test $gl_cv_header_langinfo_codeset = yes; then HAVE_LANGINFO_CODESET=1 fi AC_CACHE_CHECK([whether langinfo.h defines T_FMT_AMPM], [gl_cv_header_langinfo_t_fmt_ampm], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#include int a = T_FMT_AMPM; ]])], [gl_cv_header_langinfo_t_fmt_ampm=yes], [gl_cv_header_langinfo_t_fmt_ampm=no]) ]) if test $gl_cv_header_langinfo_t_fmt_ampm = yes; then HAVE_LANGINFO_T_FMT_AMPM=1 fi AC_CACHE_CHECK([whether langinfo.h defines ALTMON_1], [gl_cv_header_langinfo_altmon], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#include int a = ALTMON_1; ]])], [gl_cv_header_langinfo_altmon=yes], [gl_cv_header_langinfo_altmon=no]) ]) if test $gl_cv_header_langinfo_altmon = yes; then HAVE_LANGINFO_ALTMON=1 fi AC_CACHE_CHECK([whether langinfo.h defines ERA], [gl_cv_header_langinfo_era], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#include int a = ERA; ]])], [gl_cv_header_langinfo_era=yes], [gl_cv_header_langinfo_era=no]) ]) if test $gl_cv_header_langinfo_era = yes; then HAVE_LANGINFO_ERA=1 fi AC_CACHE_CHECK([whether langinfo.h defines YESEXPR], [gl_cv_header_langinfo_yesexpr], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#include int a = YESEXPR; ]])], [gl_cv_header_langinfo_yesexpr=yes], [gl_cv_header_langinfo_yesexpr=no]) ]) if test $gl_cv_header_langinfo_yesexpr = yes; then HAVE_LANGINFO_YESEXPR=1 fi else HAVE_LANGINFO_H=0 fi AC_SUBST([HAVE_LANGINFO_H]) AC_SUBST([HAVE_LANGINFO_CODESET]) AC_SUBST([HAVE_LANGINFO_T_FMT_AMPM]) AC_SUBST([HAVE_LANGINFO_ALTMON]) AC_SUBST([HAVE_LANGINFO_ERA]) AC_SUBST([HAVE_LANGINFO_YESEXPR]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include ]], [nl_langinfo]) ]) AC_DEFUN([gl_LANGINFO_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_LANGINFO_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_LANGINFO_H_DEFAULTS], [ GNULIB_NL_LANGINFO=0; AC_SUBST([GNULIB_NL_LANGINFO]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_NL_LANGINFO=1; AC_SUBST([HAVE_NL_LANGINFO]) REPLACE_NL_LANGINFO=0; AC_SUBST([REPLACE_NL_LANGINFO]) ]) # Enable large files on systems where this is not the default. # Enable support for files on Linux file systems with 64-bit inode numbers. # Copyright 1992-1996, 1998-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # The following macro works around a problem in Autoconf's AC_FUNC_FSEEKO: # It does not set _LARGEFILE_SOURCE=1 on HP-UX/ia64 32-bit, although this # setting of _LARGEFILE_SOURCE is needed so that declares fseeko # and ftello in C++ mode as well. AC_DEFUN([gl_SET_LARGEFILE_SOURCE], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_FUNC_FSEEKO case "$host_os" in hpux*) AC_DEFINE([_LARGEFILE_SOURCE], [1], [Define to 1 to make fseeko visible on some hosts (e.g. glibc 2.2).]) ;; esac ]) # The following implementation works around a problem in autoconf <= 2.69; # AC_SYS_LARGEFILE does not configure for large inodes on Mac OS X 10.5, # or configures them incorrectly in some cases. m4_version_prereq([2.70], [] ,[ # _AC_SYS_LARGEFILE_TEST_INCLUDES # ------------------------------- m4_define([_AC_SYS_LARGEFILE_TEST_INCLUDES], [@%:@include /* Check that off_t can represent 2**63 - 1 correctly. We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ @%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]];[]dnl ]) # _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, # CACHE-VAR, # DESCRIPTION, # PROLOGUE, [FUNCTION-BODY]) # -------------------------------------------------------- m4_define([_AC_SYS_LARGEFILE_MACRO_VALUE], [AC_CACHE_CHECK([for $1 value needed for large files], [$3], [while :; do m4_ifval([$6], [AC_LINK_IFELSE], [AC_COMPILE_IFELSE])( [AC_LANG_PROGRAM([$5], [$6])], [$3=no; break]) m4_ifval([$6], [AC_LINK_IFELSE], [AC_COMPILE_IFELSE])( [AC_LANG_PROGRAM([@%:@define $1 $2 $5], [$6])], [$3=$2; break]) $3=unknown break done]) case $$3 in #( no | unknown) ;; *) AC_DEFINE_UNQUOTED([$1], [$$3], [$4]);; esac rm -rf conftest*[]dnl ])# _AC_SYS_LARGEFILE_MACRO_VALUE # AC_SYS_LARGEFILE # ---------------- # By default, many hosts won't let programs access large files; # one must use special compiler options to get large-file access to work. # For more details about this brain damage please see: # http://www.unix.org/version2/whatsnew/lfs20mar.html # Additionally, on Linux file systems with 64-bit inodes a file that happens # to have a 64-bit inode number cannot be accessed by 32-bit applications on # Linux x86/x86_64. This can occur with file systems such as XFS and NFS. AC_DEFUN([AC_SYS_LARGEFILE], [AC_ARG_ENABLE(largefile, [ --disable-largefile omit support for large files]) if test "$enable_largefile" != no; then AC_CACHE_CHECK([for special C compiler options needed for large files], ac_cv_sys_largefile_CC, [ac_cv_sys_largefile_CC=no if test "$GCC" != yes; then ac_save_CC=$CC while :; do # IRIX 6.2 and later do not support large files by default, # so use the C compiler's -n32 option if that helps. AC_LANG_CONFTEST([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_INCLUDES])]) AC_COMPILE_IFELSE([], [break]) CC="$CC -n32" AC_COMPILE_IFELSE([], [ac_cv_sys_largefile_CC=' -n32'; break]) break done CC=$ac_save_CC rm -f conftest.$ac_ext fi]) if test "$ac_cv_sys_largefile_CC" != no; then CC=$CC$ac_cv_sys_largefile_CC fi _AC_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64, ac_cv_sys_file_offset_bits, [Number of bits in a file offset, on hosts where this is settable.], [_AC_SYS_LARGEFILE_TEST_INCLUDES]) if test $ac_cv_sys_file_offset_bits = unknown; then _AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1, ac_cv_sys_large_files, [Define for large files, on AIX-style hosts.], [_AC_SYS_LARGEFILE_TEST_INCLUDES]) fi fi ])# AC_SYS_LARGEFILE ])# m4_version_prereq 2.70 # Enable large files on systems where this is implemented by Gnulib, not by the # system headers. # Set the variables WINDOWS_64_BIT_OFF_T, WINDOWS_64_BIT_ST_SIZE if Gnulib # overrides ensure that off_t or 'struct size.st_size' are 64-bit, respectively. AC_DEFUN([gl_LARGEFILE], [ AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in mingw*) dnl Native Windows. dnl mingw64 defines off_t to a 64-bit type already, if dnl _FILE_OFFSET_BITS=64, which is ensured by AC_SYS_LARGEFILE. AC_CACHE_CHECK([for 64-bit off_t], [gl_cv_type_off_t_64], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include int verify_off_t_size[sizeof (off_t) >= 8 ? 1 : -1]; ]], [[]])], [gl_cv_type_off_t_64=yes], [gl_cv_type_off_t_64=no]) ]) if test $gl_cv_type_off_t_64 = no; then WINDOWS_64_BIT_OFF_T=1 else WINDOWS_64_BIT_OFF_T=0 fi dnl Some mingw versions define, if _FILE_OFFSET_BITS=64, 'struct stat' dnl to 'struct _stat32i64' or 'struct _stat64' (depending on dnl _USE_32BIT_TIME_T), which has a 32-bit st_size member. AC_CACHE_CHECK([for 64-bit st_size], [gl_cv_member_st_size_64], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include struct stat buf; int verify_st_size_size[sizeof (buf.st_size) >= 8 ? 1 : -1]; ]], [[]])], [gl_cv_member_st_size_64=yes], [gl_cv_member_st_size_64=no]) ]) if test $gl_cv_member_st_size_64 = no; then WINDOWS_64_BIT_ST_SIZE=1 else WINDOWS_64_BIT_ST_SIZE=0 fi ;; *) dnl Nothing to do on gnulib's side. dnl A 64-bit off_t is dnl - already the default on Mac OS X, FreeBSD, NetBSD, OpenBSD, IRIX, dnl OSF/1, Cygwin, dnl - enabled by _FILE_OFFSET_BITS=64 (ensured by AC_SYS_LARGEFILE) on dnl glibc, HP-UX, Solaris, dnl - enabled by _LARGE_FILES=1 (ensured by AC_SYS_LARGEFILE) on AIX, dnl - impossible to achieve on Minix 3.1.8. WINDOWS_64_BIT_OFF_T=0 WINDOWS_64_BIT_ST_SIZE=0 ;; esac ]) # lcmessage.m4 serial 8 dnl Copyright (C) 1995-2002, 2004-2005, 2008-2014, 2016, 2019-2020 Free dnl Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl dnl This file can be used in projects which are not available under dnl the GNU General Public License or the GNU Lesser General Public dnl License but which still want to provide support for the GNU gettext dnl functionality. dnl Please note that the actual code of the GNU gettext library is covered dnl by the GNU Lesser General Public License, and the rest of the GNU dnl gettext package is covered by the GNU General Public License. dnl They are *not* in the public domain. dnl Authors: dnl Ulrich Drepper , 1995. # Check whether LC_MESSAGES is available in . AC_DEFUN([gt_LC_MESSAGES], [ AC_CACHE_CHECK([for LC_MESSAGES], [gt_cv_val_LC_MESSAGES], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[return LC_MESSAGES]])], [gt_cv_val_LC_MESSAGES=yes], [gt_cv_val_LC_MESSAGES=no])]) if test $gt_cv_val_LC_MESSAGES = yes; then AC_DEFINE([HAVE_LC_MESSAGES], [1], [Define if your file defines LC_MESSAGES.]) fi ]) # ld-output-def.m4 serial 2 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Simon Josefsson # gl_LD_OUTPUT_DEF() # ------------- # Check if linker supports -Wl,--output-def and define automake # conditional HAVE_LD_OUTPUT_DEF if it is. AC_DEFUN([gl_LD_OUTPUT_DEF], [ AC_CACHE_CHECK([if gcc/ld supports -Wl,--output-def], [gl_cv_ld_output_def], [if test "$enable_shared" = no; then gl_cv_ld_output_def="not needed, shared libraries are disabled" else gl_ldflags_save=$LDFLAGS LDFLAGS="-Wl,--output-def,conftest.def" AC_LINK_IFELSE([AC_LANG_PROGRAM([])], [gl_cv_ld_output_def=yes], [gl_cv_ld_output_def=no]) rm -f conftest.def LDFLAGS="$gl_ldflags_save" fi]) AM_CONDITIONAL([HAVE_LD_OUTPUT_DEF], test "x$gl_cv_ld_output_def" = "xyes") ]) # ld-version-script.m4 serial 4 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Simon Josefsson # FIXME: The test below returns a false positive for mingw # cross-compiles, 'local:' statements does not reduce number of # exported symbols in a DLL. Use --disable-ld-version-script to work # around the problem. # gl_LD_VERSION_SCRIPT # -------------------- # Check if LD supports linker scripts, and define automake conditional # HAVE_LD_VERSION_SCRIPT if so. AC_DEFUN([gl_LD_VERSION_SCRIPT], [ AC_ARG_ENABLE([ld-version-script], [AS_HELP_STRING([--enable-ld-version-script], [enable linker version script (default is enabled when possible)])], [have_ld_version_script=$enableval], [AC_CACHE_CHECK([if LD -Wl,--version-script works], [gl_cv_sys_ld_version_script], [gl_cv_sys_ld_version_script=no save_LDFLAGS=$LDFLAGS LDFLAGS="$LDFLAGS -Wl,--version-script=conftest.map" echo foo >conftest.map AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])], [], [cat > conftest.map < /lib/libc.so.6 (0x4002d000) dnl /lib/ld-linux.so.2 (0x40000000) LDDPOSTPROC="2>/dev/null | sed -n -e 's,^ \\([^ ][^ ]*\\).*\$,\\1,p' | sed -e 's,^.*/,,'" ;; osf*) LDDPROG="odump -Dl" dnl The output of "odump -Dl program" looks like this: dnl dnl ***LIBRARY LIST SECTION*** dnl Name Time-Stamp CheckSum Flags Version dnl program: dnl libc.so Dec 30 00:09:30 1997 0x5e955f9b 0 osf.1 dnl LDDPOSTPROC="2>/dev/null | sed -n -e 's,^ \\([^ ][^ ]*\\).*,\\1,p' | sed -e '/^Name\$/d' | sed -e 's,^.*/,,'" ;; solaris*) LDDPROG="ldd" dnl The output of "ldd program" looks like this: dnl libc.so.1 => /usr/lib/libc.so.1 dnl libdl.so.1 => /usr/lib/libdl.so.1 dnl /usr/platform/SUNW,Ultra-5_10/lib/libc_psr.so.1 dnl The first sed collects the indented lines. dnl The second sed extracts the left-hand part. dnl The third sed removes directory specifications. LDDPOSTPROC="2>/dev/null | sed -n -e 's,^ \\([^ ].*\\)\$,\\1,p' | sed -e 's, =>.*\$,,' | sed -e 's,^.*/,,'" ;; esac fi fi dnl Avoid locale dependencies. if test "$LDDPROG" != ":"; then LDDPROG="LC_ALL=C $LDDPROG" fi changequote([,])dnl AC_SUBST([LDDPROG]) AC_SUBST([LDDPOSTPROC]) ]) # libtool.m4 - Configure libtool for the host system. -*-Autoconf-*- # # Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc. # Written by Gordon Matzigkeit, 1996 # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. m4_define([_LT_COPYING], [dnl # Copyright (C) 2014 Free Software Foundation, Inc. # This is free software; see the source for copying conditions. There is NO # warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # GNU Libtool is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of of the License, or # (at your option) any later version. # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program or library that is built # using GNU Libtool, you may include this file under the same # distribution terms that you use for the rest of that program. # # GNU Libtool is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . ]) # serial 58 LT_INIT # LT_PREREQ(VERSION) # ------------------ # Complain and exit if this libtool version is less that VERSION. m4_defun([LT_PREREQ], [m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1, [m4_default([$3], [m4_fatal([Libtool version $1 or higher is required], 63)])], [$2])]) # _LT_CHECK_BUILDDIR # ------------------ # Complain if the absolute build directory name contains unusual characters m4_defun([_LT_CHECK_BUILDDIR], [case `pwd` in *\ * | *\ *) AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;; esac ]) # LT_INIT([OPTIONS]) # ------------------ AC_DEFUN([LT_INIT], [AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl AC_BEFORE([$0], [LT_LANG])dnl AC_BEFORE([$0], [LT_OUTPUT])dnl AC_BEFORE([$0], [LTDL_INIT])dnl m4_require([_LT_CHECK_BUILDDIR])dnl dnl Autoconf doesn't catch unexpanded LT_ macros by default: m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4 dnl unless we require an AC_DEFUNed macro: AC_REQUIRE([LTOPTIONS_VERSION])dnl AC_REQUIRE([LTSUGAR_VERSION])dnl AC_REQUIRE([LTVERSION_VERSION])dnl AC_REQUIRE([LTOBSOLETE_VERSION])dnl m4_require([_LT_PROG_LTMAIN])dnl _LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}]) dnl Parse OPTIONS _LT_SET_OPTIONS([$0], [$1]) # This can be used to rebuild libtool when needed LIBTOOL_DEPS=$ltmain # Always use our own libtool. LIBTOOL='$(top_builddir)' LIBTOOL="$LIBTOOL/${host_alias}-libtool" AC_SUBST(LIBTOOL)dnl _LT_SETUP # Only expand once: m4_define([LT_INIT]) ])# LT_INIT # Old names: AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT]) AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_PROG_LIBTOOL], []) dnl AC_DEFUN([AM_PROG_LIBTOOL], []) # _LT_PREPARE_CC_BASENAME # ----------------------- m4_defun([_LT_PREPARE_CC_BASENAME], [ # Calculate cc_basename. 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For some # reason, if we set the COLLECT_NAMES environment variable, the problems # vanish in a puff of smoke. if test set != "${COLLECT_NAMES+set}"; then COLLECT_NAMES= export COLLECT_NAMES fi ;; esac # Global variables: ofile=${host_alias}-libtool can_build_shared=yes # All known linkers require a '.a' archive for static linking (except MSVC, # which needs '.lib'). libext=a with_gnu_ld=$lt_cv_prog_gnu_ld old_CC=$CC old_CFLAGS=$CFLAGS # Set sane defaults for various variables test -z "$CC" && CC=cc test -z "$LTCC" && LTCC=$CC test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS test -z "$LD" && LD=ld test -z "$ac_objext" && ac_objext=o _LT_CC_BASENAME([$compiler]) # Only perform the check for file, if the check method requires it test -z "$MAGIC_CMD" && MAGIC_CMD=file case $deplibs_check_method in file_magic*) if test "$file_magic_cmd" = '$MAGIC_CMD'; then _LT_PATH_MAGIC fi ;; esac # Use C for the default configuration in the libtool script LT_SUPPORTED_TAG([CC]) _LT_LANG_C_CONFIG _LT_LANG_DEFAULT_CONFIG _LT_CONFIG_COMMANDS ])# _LT_SETUP # _LT_PREPARE_SED_QUOTE_VARS # -------------------------- # Define a few sed substitution that help us do robust quoting. m4_defun([_LT_PREPARE_SED_QUOTE_VARS], [# Backslashify metacharacters that are still active within # double-quoted strings. sed_quote_subst='s/\([["`$\\]]\)/\\\1/g' # Same as above, but do not quote variable references. double_quote_subst='s/\([["`\\]]\)/\\\1/g' # Sed substitution to delay expansion of an escaped shell variable in a # double_quote_subst'ed string. delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g' # Sed substitution to delay expansion of an escaped single quote. delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g' # Sed substitution to avoid accidental globbing in evaled expressions no_glob_subst='s/\*/\\\*/g' ]) # _LT_PROG_LTMAIN # --------------- # Note that this code is called both from 'configure', and 'config.status' # now that we use AC_CONFIG_COMMANDS to generate libtool. Notably, # 'config.status' has no value for ac_aux_dir unless we are using Automake, # so we pass a copy along to make sure it has a sensible value anyway. m4_defun([_LT_PROG_LTMAIN], [m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl _LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir']) ltmain=$ac_aux_dir/ltmain.sh ])# _LT_PROG_LTMAIN # So that we can recreate a full libtool script including additional # tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS # in macros and then make a single call at the end using the 'libtool' # label. # _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS]) # ---------------------------------------- # Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later. m4_define([_LT_CONFIG_LIBTOOL_INIT], [m4_ifval([$1], [m4_append([_LT_OUTPUT_LIBTOOL_INIT], [$1 ])])]) # Initialize. m4_define([_LT_OUTPUT_LIBTOOL_INIT]) # _LT_CONFIG_LIBTOOL([COMMANDS]) # ------------------------------ # Register COMMANDS to be passed to AC_CONFIG_COMMANDS later. m4_define([_LT_CONFIG_LIBTOOL], [m4_ifval([$1], [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS], [$1 ])])]) # Initialize. m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS]) # _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS]) # ----------------------------------------------------- m4_defun([_LT_CONFIG_SAVE_COMMANDS], [_LT_CONFIG_LIBTOOL([$1]) _LT_CONFIG_LIBTOOL_INIT([$2]) ]) # _LT_FORMAT_COMMENT([COMMENT]) # ----------------------------- # Add leading comment marks to the start of each line, and a trailing # full-stop to the whole comment if one is not present already. m4_define([_LT_FORMAT_COMMENT], [m4_ifval([$1], [ m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])], [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.]) )]) # _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?]) # ------------------------------------------------------------------- # CONFIGNAME is the name given to the value in the libtool script. # VARNAME is the (base) name used in the configure script. # VALUE may be 0, 1 or 2 for a computed quote escaped value based on # VARNAME. Any other value will be used directly. m4_define([_LT_DECL], [lt_if_append_uniq([lt_decl_varnames], [$2], [, ], [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name], [m4_ifval([$1], [$1], [$2])]) lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3]) m4_ifval([$4], [lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])]) lt_dict_add_subkey([lt_decl_dict], [$2], [tagged?], [m4_ifval([$5], [yes], [no])])]) ]) # _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION]) # -------------------------------------------------------- m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])]) # lt_decl_tag_varnames([SEPARATOR], [VARNAME1...]) # ------------------------------------------------ m4_define([lt_decl_tag_varnames], [_lt_decl_filter([tagged?], [yes], $@)]) # _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..]) # --------------------------------------------------------- m4_define([_lt_decl_filter], [m4_case([$#], [0], [m4_fatal([$0: too few arguments: $#])], [1], [m4_fatal([$0: too few arguments: $#: $1])], [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)], [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)], [lt_dict_filter([lt_decl_dict], $@)])[]dnl ]) # lt_decl_quote_varnames([SEPARATOR], [VARNAME1...]) # -------------------------------------------------- m4_define([lt_decl_quote_varnames], [_lt_decl_filter([value], [1], $@)]) # lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...]) # --------------------------------------------------- m4_define([lt_decl_dquote_varnames], [_lt_decl_filter([value], [2], $@)]) # lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...]) # --------------------------------------------------- m4_define([lt_decl_varnames_tagged], [m4_assert([$# <= 2])dnl _$0(m4_quote(m4_default([$1], [[, ]])), m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]), m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))]) m4_define([_lt_decl_varnames_tagged], [m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])]) # lt_decl_all_varnames([SEPARATOR], [VARNAME1...]) # ------------------------------------------------ m4_define([lt_decl_all_varnames], [_$0(m4_quote(m4_default([$1], [[, ]])), m4_if([$2], [], m4_quote(lt_decl_varnames), m4_quote(m4_shift($@))))[]dnl ]) m4_define([_lt_decl_all_varnames], [lt_join($@, lt_decl_varnames_tagged([$1], lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl ]) # _LT_CONFIG_STATUS_DECLARE([VARNAME]) # ------------------------------------ # Quote a variable value, and forward it to 'config.status' so that its # declaration there will have the same value as in 'configure'. VARNAME # must have a single quote delimited value for this to work. m4_define([_LT_CONFIG_STATUS_DECLARE], [$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`']) # _LT_CONFIG_STATUS_DECLARATIONS # ------------------------------ # We delimit libtool config variables with single quotes, so when # we write them to config.status, we have to be sure to quote all # embedded single quotes properly. In configure, this macro expands # each variable declared with _LT_DECL (and _LT_TAGDECL) into: # # ='`$ECHO "$" | $SED "$delay_single_quote_subst"`' m4_defun([_LT_CONFIG_STATUS_DECLARATIONS], [m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames), [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])]) # _LT_LIBTOOL_TAGS # ---------------- # Output comment and list of tags supported by the script m4_defun([_LT_LIBTOOL_TAGS], [_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl available_tags='_LT_TAGS'dnl ]) # _LT_LIBTOOL_DECLARE(VARNAME, [TAG]) # ----------------------------------- # Extract the dictionary values for VARNAME (optionally with TAG) and # expand to a commented shell variable setting: # # # Some comment about what VAR is for. # visible_name=$lt_internal_name m4_define([_LT_LIBTOOL_DECLARE], [_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [description])))[]dnl m4_pushdef([_libtool_name], m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])), [0], [_libtool_name=[$]$1], [1], [_libtool_name=$lt_[]$1], [2], [_libtool_name=$lt_[]$1], [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl ]) # _LT_LIBTOOL_CONFIG_VARS # ----------------------- # Produce commented declarations of non-tagged libtool config variables # suitable for insertion in the LIBTOOL CONFIG section of the 'libtool' # script. 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Likely further. if test -x /sbin/sysctl; then lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax` elif test -x /usr/sbin/sysctl; then lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax` else lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs fi # And add a safety zone lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` ;; interix*) # We know the value 262144 and hardcode it with a safety zone (like BSD) lt_cv_sys_max_cmd_len=196608 ;; os2*) # The test takes a long time on OS/2. lt_cv_sys_max_cmd_len=8192 ;; osf*) # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not # nice to cause kernel panics so lets avoid the loop below. # First set a reasonable default. lt_cv_sys_max_cmd_len=16384 # if test -x /sbin/sysconfig; then case `/sbin/sysconfig -q proc exec_disable_arg_limit` in *1*) lt_cv_sys_max_cmd_len=-1 ;; esac fi ;; sco3.2v5*) lt_cv_sys_max_cmd_len=102400 ;; sysv5* | sco5v6* | sysv4.2uw2*) kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null` if test -n "$kargmax"; then lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'` else lt_cv_sys_max_cmd_len=32768 fi ;; *) lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null` if test -n "$lt_cv_sys_max_cmd_len" && \ test undefined != "$lt_cv_sys_max_cmd_len"; then lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4` lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3` else # Make teststring a little bigger before we do anything with it. # a 1K string should be a reasonable start. for i in 1 2 3 4 5 6 7 8; do teststring=$teststring$teststring done SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}} # If test is not a shell built-in, we'll probably end up computing a # maximum length that is only half of the actual maximum length, but # we can't tell. while { test X`env echo "$teststring$teststring" 2>/dev/null` \ = "X$teststring$teststring"; } >/dev/null 2>&1 && test 17 != "$i" # 1/2 MB should be enough do i=`expr $i + 1` teststring=$teststring$teststring done # Only check the string length outside the loop. lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1` teststring= # Add a significant safety factor because C++ compilers can tack on # massive amounts of additional arguments before passing them to the # linker. It appears as though 1/2 is a usable value. lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2` fi ;; esac ]) if test -n "$lt_cv_sys_max_cmd_len"; then AC_MSG_RESULT($lt_cv_sys_max_cmd_len) else AC_MSG_RESULT(none) fi max_cmd_len=$lt_cv_sys_max_cmd_len _LT_DECL([], [max_cmd_len], [0], [What is the maximum length of a command?]) ])# LT_CMD_MAX_LEN # Old name: AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], []) # _LT_HEADER_DLFCN # ---------------- m4_defun([_LT_HEADER_DLFCN], [AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl ])# _LT_HEADER_DLFCN # _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE, # ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING) # ---------------------------------------------------------------- m4_defun([_LT_TRY_DLOPEN_SELF], [m4_require([_LT_HEADER_DLFCN])dnl if test yes = "$cross_compiling"; then : [$4] else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF [#line $LINENO "configure" #include "confdefs.h" #if HAVE_DLFCN_H #include #endif #include #ifdef RTLD_GLOBAL # define LT_DLGLOBAL RTLD_GLOBAL #else # ifdef DL_GLOBAL # define LT_DLGLOBAL DL_GLOBAL # else # define LT_DLGLOBAL 0 # endif #endif /* We may have to define LT_DLLAZY_OR_NOW in the command line if we find out it does not work in some platform. */ #ifndef LT_DLLAZY_OR_NOW # ifdef RTLD_LAZY # define LT_DLLAZY_OR_NOW RTLD_LAZY # else # ifdef DL_LAZY # define LT_DLLAZY_OR_NOW DL_LAZY # else # ifdef RTLD_NOW # define LT_DLLAZY_OR_NOW RTLD_NOW # else # ifdef DL_NOW # define LT_DLLAZY_OR_NOW DL_NOW # else # define LT_DLLAZY_OR_NOW 0 # endif # endif # endif # endif #endif /* When -fvisibility=hidden is used, assume the code has been annotated correspondingly for the symbols needed. */ #if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)) int fnord () __attribute__((visibility("default"))); #endif int fnord () { return 42; } int main () { void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW); int status = $lt_dlunknown; if (self) { if (dlsym (self,"fnord")) status = $lt_dlno_uscore; else { if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore; else puts (dlerror ()); } /* dlclose (self); */ } else puts (dlerror ()); return status; }] _LT_EOF if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null lt_status=$? case x$lt_status in x$lt_dlno_uscore) $1 ;; x$lt_dlneed_uscore) $2 ;; x$lt_dlunknown|x*) $3 ;; esac else : # compilation failed $3 fi fi rm -fr conftest* ])# _LT_TRY_DLOPEN_SELF # LT_SYS_DLOPEN_SELF # ------------------ AC_DEFUN([LT_SYS_DLOPEN_SELF], [m4_require([_LT_HEADER_DLFCN])dnl if test yes != "$enable_dlopen"; then enable_dlopen=unknown enable_dlopen_self=unknown enable_dlopen_self_static=unknown else lt_cv_dlopen=no lt_cv_dlopen_libs= case $host_os in beos*) lt_cv_dlopen=load_add_on lt_cv_dlopen_libs= lt_cv_dlopen_self=yes ;; mingw* | pw32* | cegcc*) lt_cv_dlopen=LoadLibrary lt_cv_dlopen_libs= ;; cygwin*) lt_cv_dlopen=dlopen lt_cv_dlopen_libs= ;; darwin*) # if libdl is installed we need to link against it AC_CHECK_LIB([dl], [dlopen], [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[ lt_cv_dlopen=dyld lt_cv_dlopen_libs= lt_cv_dlopen_self=yes ]) ;; tpf*) # Don't try to run any link tests for TPF. We know it's impossible # because TPF is a cross-compiler, and we know how we open DSOs. lt_cv_dlopen=dlopen lt_cv_dlopen_libs= lt_cv_dlopen_self=no ;; *) AC_CHECK_FUNC([shl_load], [lt_cv_dlopen=shl_load], [AC_CHECK_LIB([dld], [shl_load], [lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld], [AC_CHECK_FUNC([dlopen], [lt_cv_dlopen=dlopen], [AC_CHECK_LIB([dl], [dlopen], [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl], [AC_CHECK_LIB([svld], [dlopen], [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld], [AC_CHECK_LIB([dld], [dld_link], [lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld]) ]) ]) ]) ]) ]) ;; esac if test no = "$lt_cv_dlopen"; then enable_dlopen=no else enable_dlopen=yes fi case $lt_cv_dlopen in dlopen) save_CPPFLAGS=$CPPFLAGS test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H" save_LDFLAGS=$LDFLAGS wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\" save_LIBS=$LIBS LIBS="$lt_cv_dlopen_libs $LIBS" AC_CACHE_CHECK([whether a program can dlopen itself], lt_cv_dlopen_self, [dnl _LT_TRY_DLOPEN_SELF( lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes, lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross) ]) if test yes = "$lt_cv_dlopen_self"; then wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\" AC_CACHE_CHECK([whether a statically linked program can dlopen itself], lt_cv_dlopen_self_static, [dnl _LT_TRY_DLOPEN_SELF( lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross) ]) fi CPPFLAGS=$save_CPPFLAGS LDFLAGS=$save_LDFLAGS LIBS=$save_LIBS ;; esac case $lt_cv_dlopen_self in yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;; *) enable_dlopen_self=unknown ;; esac case $lt_cv_dlopen_self_static in yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;; *) enable_dlopen_self_static=unknown ;; esac fi _LT_DECL([dlopen_support], [enable_dlopen], [0], [Whether dlopen is supported]) _LT_DECL([dlopen_self], [enable_dlopen_self], [0], [Whether dlopen of programs is supported]) _LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0], [Whether dlopen of statically linked programs is supported]) ])# LT_SYS_DLOPEN_SELF # Old name: AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], []) # _LT_COMPILER_C_O([TAGNAME]) # --------------------------- # Check to see if options -c and -o are simultaneously supported by compiler. # This macro does not hard code the compiler like AC_PROG_CC_C_O. m4_defun([_LT_COMPILER_C_O], [m4_require([_LT_DECL_SED])dnl m4_require([_LT_FILEUTILS_DEFAULTS])dnl m4_require([_LT_TAG_COMPILER])dnl AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext], [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)], [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no $RM -r conftest 2>/dev/null mkdir conftest cd conftest mkdir out echo "$lt_simple_compile_test_code" > conftest.$ac_ext lt_compiler_flag="-o out/conftest2.$ac_objext" # Insert the option either (1) after the last *FLAGS variable, or # (2) before a word containing "conftest.", or (3) at the end. # Note that $ac_compile itself does not contain backslashes and begins # with a dollar sign (not a hyphen), so the echo should work correctly. lt_compile=`echo "$ac_compile" | $SED \ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \ -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \ -e 's:$: $lt_compiler_flag:'` (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD) (eval "$lt_compile" 2>out/conftest.err) ac_status=$? cat out/conftest.err >&AS_MESSAGE_LOG_FD echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD if (exit $ac_status) && test -s out/conftest2.$ac_objext then # The compiler can only warn and ignore the option if not recognized # So say no if there are warnings $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2 if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes fi fi chmod u+w . 2>&AS_MESSAGE_LOG_FD $RM conftest* # SGI C++ compiler will create directory out/ii_files/ for # template instantiation test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files $RM out/* && rmdir out cd .. $RM -r conftest $RM conftest* ]) _LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1], [Does compiler simultaneously support -c and -o options?]) ])# _LT_COMPILER_C_O # _LT_COMPILER_FILE_LOCKS([TAGNAME]) # ---------------------------------- # Check to see if we can do hard links to lock some files if needed m4_defun([_LT_COMPILER_FILE_LOCKS], [m4_require([_LT_ENABLE_LOCK])dnl m4_require([_LT_FILEUTILS_DEFAULTS])dnl _LT_COMPILER_C_O([$1]) hard_links=nottested if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then # do not overwrite the value of need_locks provided by the user AC_MSG_CHECKING([if we can lock with hard links]) hard_links=yes $RM conftest* ln conftest.a conftest.b 2>/dev/null && hard_links=no touch conftest.a ln conftest.a conftest.b 2>&5 || hard_links=no ln conftest.a conftest.b 2>/dev/null && hard_links=no AC_MSG_RESULT([$hard_links]) if test no = "$hard_links"; then AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe]) need_locks=warn fi else need_locks=no fi _LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?]) ])# _LT_COMPILER_FILE_LOCKS # _LT_CHECK_OBJDIR # ---------------- m4_defun([_LT_CHECK_OBJDIR], [AC_CACHE_CHECK([for objdir], [lt_cv_objdir], [rm -f .libs 2>/dev/null mkdir .libs 2>/dev/null if test -d .libs; then lt_cv_objdir=.libs else # MS-DOS does not allow filenames that begin with a dot. lt_cv_objdir=_libs fi rmdir .libs 2>/dev/null]) objdir=$lt_cv_objdir _LT_DECL([], [objdir], [0], [The name of the directory that contains temporary libtool files])dnl m4_pattern_allow([LT_OBJDIR])dnl AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/", [Define to the sub-directory where libtool stores uninstalled libraries.]) ])# _LT_CHECK_OBJDIR # _LT_LINKER_HARDCODE_LIBPATH([TAGNAME]) # -------------------------------------- # Check hardcoding attributes. m4_defun([_LT_LINKER_HARDCODE_LIBPATH], [AC_MSG_CHECKING([how to hardcode library paths into programs]) _LT_TAGVAR(hardcode_action, $1)= if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" || test -n "$_LT_TAGVAR(runpath_var, $1)" || test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then # We can hardcode non-existent directories. if test no != "$_LT_TAGVAR(hardcode_direct, $1)" && # If the only mechanism to avoid hardcoding is shlibpath_var, we # have to relink, otherwise we might link with an installed library # when we should be linking with a yet-to-be-installed one ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" && test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then # Linking always hardcodes the temporary library directory. _LT_TAGVAR(hardcode_action, $1)=relink else # We can link without hardcoding, and we can hardcode nonexisting dirs. _LT_TAGVAR(hardcode_action, $1)=immediate fi else # We cannot hardcode anything, or else we can only hardcode existing # directories. _LT_TAGVAR(hardcode_action, $1)=unsupported fi AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)]) if test relink = "$_LT_TAGVAR(hardcode_action, $1)" || test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then # Fast installation is not supported enable_fast_install=no elif test yes = "$shlibpath_overrides_runpath" || test no = "$enable_shared"; then # Fast installation is not necessary enable_fast_install=needless fi _LT_TAGDECL([], [hardcode_action], [0], [How to hardcode a shared library path into an executable]) ])# _LT_LINKER_HARDCODE_LIBPATH # _LT_CMD_STRIPLIB # ---------------- m4_defun([_LT_CMD_STRIPLIB], [m4_require([_LT_DECL_EGREP]) striplib= old_striplib= AC_MSG_CHECKING([whether stripping libraries is possible]) if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then test -z "$old_striplib" && old_striplib="$STRIP --strip-debug" test -z "$striplib" && striplib="$STRIP --strip-unneeded" AC_MSG_RESULT([yes]) else # FIXME - insert some real tests, host_os isn't really good enough case $host_os in darwin*) if test -n "$STRIP"; then striplib="$STRIP -x" old_striplib="$STRIP -S" AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no]) fi ;; *) AC_MSG_RESULT([no]) ;; esac fi _LT_DECL([], [old_striplib], [1], [Commands to strip libraries]) _LT_DECL([], [striplib], [1]) ])# _LT_CMD_STRIPLIB # _LT_PREPARE_MUNGE_PATH_LIST # --------------------------- # Make sure func_munge_path_list() is defined correctly. m4_defun([_LT_PREPARE_MUNGE_PATH_LIST], [[# func_munge_path_list VARIABLE PATH # ----------------------------------- # VARIABLE is name of variable containing _space_ separated list of # directories to be munged by the contents of PATH, which is string # having a format: # "DIR[:DIR]:" # string "DIR[ DIR]" will be prepended to VARIABLE # ":DIR[:DIR]" # string "DIR[ DIR]" will be appended to VARIABLE # "DIRP[:DIRP]::[DIRA:]DIRA" # string "DIRP[ DIRP]" will be prepended to VARIABLE and string # "DIRA[ DIRA]" will be appended to VARIABLE # "DIR[:DIR]" # VARIABLE will be replaced by "DIR[ DIR]" func_munge_path_list () { case x@S|@2 in x) ;; *:) eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\" ;; x:*) eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\" ;; *::*) eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\" eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\" ;; *) eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\" ;; esac } ]])# _LT_PREPARE_PATH_LIST # _LT_SYS_DYNAMIC_LINKER([TAG]) # ----------------------------- # PORTME Fill in your ld.so characteristics m4_defun([_LT_SYS_DYNAMIC_LINKER], [AC_REQUIRE([AC_CANONICAL_HOST])dnl m4_require([_LT_DECL_EGREP])dnl m4_require([_LT_FILEUTILS_DEFAULTS])dnl m4_require([_LT_DECL_OBJDUMP])dnl m4_require([_LT_DECL_SED])dnl m4_require([_LT_CHECK_SHELL_FEATURES])dnl m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl AC_MSG_CHECKING([dynamic linker characteristics]) m4_if([$1], [], [ if test yes = "$GCC"; then case $host_os in darwin*) lt_awk_arg='/^libraries:/,/LR/' ;; *) lt_awk_arg='/^libraries:/' ;; esac case $host_os in mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;; *) lt_sed_strip_eq='s|=/|/|g' ;; esac lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq` case $lt_search_path_spec in *\;*) # if the path contains ";" then we assume it to be the separator # otherwise default to the standard path separator (i.e. ":") - it is # assumed that no part of a normal pathname contains ";" but that should # okay in the real world where ";" in dirpaths is itself problematic. lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'` ;; *) lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"` ;; esac # Ok, now we have the path, separated by spaces, we can step through it # and add multilib dir if necessary... lt_tmp_lt_search_path_spec= lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null` # ...but if some path component already ends with the multilib dir we assume # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer). case "$lt_multi_os_dir; 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esac ;; haiku*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no dynamic_linker="$host_os runtime_loader" library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LIBRARY_PATH shlibpath_overrides_runpath=no sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib' hardcode_into_libs=yes ;; hpux9* | hpux10* | hpux11*) # Give a soname corresponding to the major version so that dld.sl refuses to # link against other versions. version_type=sunos need_lib_prefix=no need_version=no case $host_cpu in ia64*) shrext_cmds='.so' hardcode_into_libs=yes dynamic_linker="$host_os dld.so" shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' if test 32 = "$HPUX_IA64_MODE"; then sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib" sys_lib_dlsearch_path_spec=/usr/lib/hpux32 else sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64" sys_lib_dlsearch_path_spec=/usr/lib/hpux64 fi ;; hppa*64*) shrext_cmds='.sl' hardcode_into_libs=yes dynamic_linker="$host_os dld.sl" shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH shlibpath_overrides_runpath=yes # Unless +noenvvar is specified. library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64" sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec ;; *) shrext_cmds='.sl' dynamic_linker="$host_os dld.sl" shlibpath_var=SHLIB_PATH shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' ;; esac # HP-UX runs *really* slowly unless shared libraries are mode 555, ... postinstall_cmds='chmod 555 $lib' # or fails outright, so override atomically: install_override_mode=555 ;; interix[[3-9]]*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes ;; irix5* | irix6* | nonstopux*) case $host_os in nonstopux*) version_type=nonstopux ;; *) if test yes = "$lt_cv_prog_gnu_ld"; then version_type=linux # correct to gnu/linux during the next big refactor else version_type=irix fi ;; esac need_lib_prefix=no need_version=no soname_spec='$libname$release$shared_ext$major' library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext' case $host_os in irix5* | nonstopux*) libsuff= shlibsuff= ;; *) case $LD in # libtool.m4 will add one of these switches to LD *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= libmagic=32-bit;; *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 libmagic=N32;; *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 libmagic=64-bit;; *) libsuff= shlibsuff= libmagic=never-match;; esac ;; esac shlibpath_var=LD_LIBRARY${shlibsuff}_PATH shlibpath_overrides_runpath=no sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff" sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff" hardcode_into_libs=yes ;; # No shared lib support for Linux oldld, aout, or coff. linux*oldld* | linux*aout* | linux*coff*) dynamic_linker=no ;; linux*android*) version_type=none # Android doesn't support versioned libraries. need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext' soname_spec='$libname$release$shared_ext' finish_cmds= shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes # This implies no fast_install, which is unacceptable. # Some rework will be needed to allow for fast_install # before this can be enabled. hardcode_into_libs=yes dynamic_linker='Android linker' # Don't embed -rpath directories since the linker doesn't support them. _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' ;; 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*nto* | *qnx*) version_type=qnx need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=no hardcode_into_libs=yes dynamic_linker='ldqnx.so' ;; openbsd* | bitrig*) version_type=sunos sys_lib_dlsearch_path_spec=/usr/lib need_lib_prefix=no if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then need_version=no else need_version=yes fi library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes ;; os2*) libname_spec='$name' version_type=windows shrext_cmds=.dll need_version=no need_lib_prefix=no # OS/2 can only load a DLL with a base name of 8 characters or less. soname_spec='`test -n "$os2dllname" && libname="$os2dllname"; v=$($ECHO $release$versuffix | tr -d .-); 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rdos*) dynamic_linker=no ;; solaris*) version_type=linux # correct to gnu/linux during the next big refactor need_lib_prefix=no need_version=no library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes hardcode_into_libs=yes # ldd complains unless libraries are executable postinstall_cmds='chmod +x $lib' ;; sunos4*) version_type=sunos library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix' finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir' shlibpath_var=LD_LIBRARY_PATH shlibpath_overrides_runpath=yes if test yes = "$with_gnu_ld"; then need_lib_prefix=no fi need_version=yes ;; sysv4 | sysv4.3*) version_type=linux # correct to gnu/linux during the next big refactor library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext' soname_spec='$libname$release$shared_ext$major' shlibpath_var=LD_LIBRARY_PATH case $host_vendor in sni) shlibpath_overrides_runpath=no need_lib_prefix=no runpath_var=LD_RUN_PATH ;; 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*) lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library' lt_cv_file_magic_test_file=/usr/lib/libc.sl ;; esac ;; interix[[3-9]]*) # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$' ;; irix5* | irix6* | nonstopux*) case $LD in *-32|*"-32 ") libmagic=32-bit;; *-n32|*"-n32 ") libmagic=N32;; *-64|*"-64 ") libmagic=64-bit;; *) libmagic=never-match;; esac lt_cv_deplibs_check_method=pass_all ;; # This must be glibc/ELF. linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) lt_cv_deplibs_check_method=pass_all ;; netbsd*) if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$' fi ;; newos6*) lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)' lt_cv_file_magic_cmd=/usr/bin/file lt_cv_file_magic_test_file=/usr/lib/libnls.so ;; *nto* | *qnx*) lt_cv_deplibs_check_method=pass_all ;; openbsd* | bitrig*) if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$' else lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$' fi ;; osf3* | osf4* | osf5*) lt_cv_deplibs_check_method=pass_all ;; rdos*) lt_cv_deplibs_check_method=pass_all ;; solaris*) lt_cv_deplibs_check_method=pass_all ;; sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*) lt_cv_deplibs_check_method=pass_all ;; sysv4 | sysv4.3*) case $host_vendor in motorola) lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]' lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*` ;; ncr) lt_cv_deplibs_check_method=pass_all ;; sequent) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )' ;; sni) lt_cv_file_magic_cmd='/bin/file' lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib" lt_cv_file_magic_test_file=/lib/libc.so ;; siemens) lt_cv_deplibs_check_method=pass_all ;; pc) lt_cv_deplibs_check_method=pass_all ;; esac ;; tpf*) lt_cv_deplibs_check_method=pass_all ;; os2*) lt_cv_deplibs_check_method=pass_all ;; esac ]) file_magic_glob= want_nocaseglob=no if test "$build" = "$host"; then case $host_os in mingw* | pw32*) if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then want_nocaseglob=yes else file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"` fi ;; esac fi file_magic_cmd=$lt_cv_file_magic_cmd deplibs_check_method=$lt_cv_deplibs_check_method test -z "$deplibs_check_method" && deplibs_check_method=unknown _LT_DECL([], [deplibs_check_method], [1], [Method to check whether dependent libraries are shared objects]) _LT_DECL([], [file_magic_cmd], [1], [Command to use when deplibs_check_method = "file_magic"]) _LT_DECL([], [file_magic_glob], [1], [How to find potential files when deplibs_check_method = "file_magic"]) _LT_DECL([], [want_nocaseglob], [1], [Find potential files using nocaseglob when deplibs_check_method = "file_magic"]) ])# _LT_CHECK_MAGIC_METHOD # LT_PATH_NM # ---------- # find the pathname to a BSD- or MS-compatible name lister AC_DEFUN([LT_PATH_NM], [AC_REQUIRE([AC_PROG_CC])dnl AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM, [if test -n "$NM"; then # Let the user override the test. lt_cv_path_NM=$NM else lt_nm_to_check=${ac_tool_prefix}nm if test -n "$ac_tool_prefix" && test "$build" = "$host"; then lt_nm_to_check="$lt_nm_to_check nm" fi for lt_tmp_nm in $lt_nm_to_check; do lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do IFS=$lt_save_ifs test -z "$ac_dir" && ac_dir=. tmp_nm=$ac_dir/$lt_tmp_nm if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then # Check to see if the nm accepts a BSD-compat flag. # Adding the 'sed 1q' prevents false positives on HP-UX, which says: # nm: unknown option "B" ignored # Tru64's nm complains that /dev/null is an invalid object file # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty case $build_os in mingw*) lt_bad_file=conftest.nm/nofile ;; *) lt_bad_file=/dev/null ;; esac case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in *$lt_bad_file* | *'Invalid file or object type'*) lt_cv_path_NM="$tmp_nm -B" break 2 ;; *) case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in */dev/null*) lt_cv_path_NM="$tmp_nm -p" break 2 ;; *) lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but continue # so that we can try to find one that supports BSD flags ;; esac ;; esac fi done IFS=$lt_save_ifs done : ${lt_cv_path_NM=no} fi]) if test no != "$lt_cv_path_NM"; then NM=$lt_cv_path_NM else # Didn't find any BSD compatible name lister, look for dumpbin. if test -n "$DUMPBIN"; then : # Let the user override the test. else AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :) case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in *COFF*) DUMPBIN="$DUMPBIN -symbols -headers" ;; *) DUMPBIN=: ;; esac fi AC_SUBST([DUMPBIN]) if test : != "$DUMPBIN"; then NM=$DUMPBIN fi fi test -z "$NM" && NM=nm AC_SUBST([NM]) _LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface], [lt_cv_nm_interface="BSD nm" echo "int some_variable = 0;" > conftest.$ac_ext (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD) (eval "$ac_compile" 2>conftest.err) cat conftest.err >&AS_MESSAGE_LOG_FD (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD) (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out) cat conftest.err >&AS_MESSAGE_LOG_FD (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD) cat conftest.out >&AS_MESSAGE_LOG_FD if $GREP 'External.*some_variable' conftest.out > /dev/null; then lt_cv_nm_interface="MS dumpbin" fi rm -f conftest*]) ])# LT_PATH_NM # Old names: AU_ALIAS([AM_PROG_NM], [LT_PATH_NM]) AU_ALIAS([AC_PROG_NM], [LT_PATH_NM]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AM_PROG_NM], []) dnl AC_DEFUN([AC_PROG_NM], []) # _LT_CHECK_SHAREDLIB_FROM_LINKLIB # -------------------------------- # how to determine the name of the shared library # associated with a specific link library. # -- PORTME fill in with the dynamic library characteristics m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB], [m4_require([_LT_DECL_EGREP]) m4_require([_LT_DECL_OBJDUMP]) m4_require([_LT_DECL_DLLTOOL]) AC_CACHE_CHECK([how to associate runtime and link libraries], lt_cv_sharedlib_from_linklib_cmd, [lt_cv_sharedlib_from_linklib_cmd='unknown' case $host_os in cygwin* | mingw* | pw32* | cegcc*) # two different shell functions defined in ltmain.sh; # decide which one to use based on capabilities of $DLLTOOL case `$DLLTOOL --help 2>&1` in *--identify-strict*) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib ;; *) lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback ;; esac ;; *) # fallback: assume linklib IS sharedlib lt_cv_sharedlib_from_linklib_cmd=$ECHO ;; esac ]) sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO _LT_DECL([], [sharedlib_from_linklib_cmd], [1], [Command to associate shared and link libraries]) ])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB # _LT_PATH_MANIFEST_TOOL # ---------------------- # locate the manifest tool m4_defun([_LT_PATH_MANIFEST_TOOL], [AC_CHECK_TOOL(MANIFEST_TOOL, mt, :) test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool], [lt_cv_path_mainfest_tool=no echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out cat conftest.err >&AS_MESSAGE_LOG_FD if $GREP 'Manifest Tool' conftest.out > /dev/null; then lt_cv_path_mainfest_tool=yes fi rm -f conftest*]) if test yes != "$lt_cv_path_mainfest_tool"; then MANIFEST_TOOL=: fi _LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl ])# _LT_PATH_MANIFEST_TOOL # _LT_DLL_DEF_P([FILE]) # --------------------- # True iff FILE is a Windows DLL '.def' file. # Keep in sync with func_dll_def_p in the libtool script AC_DEFUN([_LT_DLL_DEF_P], [dnl test DEF = "`$SED -n dnl -e '\''s/^[[ ]]*//'\'' dnl Strip leading whitespace -e '\''/^\(;.*\)*$/d'\'' dnl Delete empty lines and comments -e '\''s/^\(EXPORTS\|LIBRARY\)\([[ ]].*\)*$/DEF/p'\'' dnl -e q dnl Only consider the first "real" line $1`" dnl ])# _LT_DLL_DEF_P # LT_LIB_M # -------- # check for math library AC_DEFUN([LT_LIB_M], [AC_REQUIRE([AC_CANONICAL_HOST])dnl LIBM= case $host in *-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*) # These system don't have libm, or don't need it ;; *-ncr-sysv4.3*) AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw) AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm") ;; *) AC_CHECK_LIB(m, cos, LIBM=-lm) ;; esac AC_SUBST([LIBM]) ])# LT_LIB_M # Old name: AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_CHECK_LIBM], []) # _LT_COMPILER_NO_RTTI([TAGNAME]) # ------------------------------- m4_defun([_LT_COMPILER_NO_RTTI], [m4_require([_LT_TAG_COMPILER])dnl _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)= if test yes = "$GCC"; then case $cc_basename in nvcc*) _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;; *) _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;; esac _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions], lt_cv_prog_compiler_rtti_exceptions, [-fno-rtti -fno-exceptions], [], [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"]) fi _LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1], [Compiler flag to turn off builtin functions]) ])# _LT_COMPILER_NO_RTTI # _LT_CMD_GLOBAL_SYMBOLS # ---------------------- m4_defun([_LT_CMD_GLOBAL_SYMBOLS], [AC_REQUIRE([AC_CANONICAL_HOST])dnl AC_REQUIRE([AC_PROG_CC])dnl AC_REQUIRE([AC_PROG_AWK])dnl AC_REQUIRE([LT_PATH_NM])dnl AC_REQUIRE([LT_PATH_LD])dnl m4_require([_LT_DECL_SED])dnl m4_require([_LT_DECL_EGREP])dnl m4_require([_LT_TAG_COMPILER])dnl # Check for command to grab the raw symbol name followed by C symbol from nm. AC_MSG_CHECKING([command to parse $NM output from $compiler object]) AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe], [ # These are sane defaults that work on at least a few old systems. # [They come from Ultrix. What could be older than Ultrix?!! ;)] # Character class describing NM global symbol codes. symcode='[[BCDEGRST]]' # Regexp to match symbols that can be accessed directly from C. sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)' # Define system-specific variables. case $host_os in aix*) symcode='[[BCDT]]' ;; cygwin* | mingw* | pw32* | cegcc*) symcode='[[ABCDGISTW]]' ;; hpux*) if test ia64 = "$host_cpu"; then symcode='[[ABCDEGRST]]' fi ;; irix* | nonstopux*) symcode='[[BCDEGRST]]' ;; osf*) symcode='[[BCDEGQRST]]' ;; solaris*) symcode='[[BDRT]]' ;; sco3.2v5*) symcode='[[DT]]' ;; sysv4.2uw2*) symcode='[[DT]]' ;; sysv5* | sco5v6* | unixware* | OpenUNIX*) symcode='[[ABDT]]' ;; sysv4) symcode='[[DFNSTU]]' ;; esac # If we're using GNU nm, then use its standard symbol codes. case `$NM -V 2>&1` in *GNU* | *'with BFD'*) symcode='[[ABCDGIRSTW]]' ;; esac if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Gets list of data symbols to import. lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'" # Adjust the below global symbol transforms to fixup imported variables. lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'" lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'" lt_c_name_lib_hook="\ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'" else # Disable hooks by default. lt_cv_sys_global_symbol_to_import= lt_cdecl_hook= lt_c_name_hook= lt_c_name_lib_hook= fi # Transform an extracted symbol line into a proper C declaration. # Some systems (esp. on ia64) link data and code symbols differently, # so use this general approach. lt_cv_sys_global_symbol_to_cdecl="sed -n"\ $lt_cdecl_hook\ " -e 's/^T .* \(.*\)$/extern int \1();/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'" # Transform an extracted symbol line into symbol name and symbol address lt_cv_sys_global_symbol_to_c_name_address="sed -n"\ $lt_c_name_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'" # Transform an extracted symbol line into symbol name with lib prefix and # symbol address. lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\ $lt_c_name_lib_hook\ " -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\ " -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\ " -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'" # Handle CRLF in mingw tool chain opt_cr= case $build_os in mingw*) opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp ;; esac # Try without a prefix underscore, then with it. for ac_symprfx in "" "_"; do # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol. symxfrm="\\1 $ac_symprfx\\2 \\2" # Write the raw and C identifiers. if test "$lt_cv_nm_interface" = "MS dumpbin"; then # Fake it for dumpbin and say T for any non-static function, # D for any global variable and I for any imported variable. # Also find C++ and __fastcall symbols from MSVC++, # which start with @ or ?. lt_cv_sys_global_symbol_pipe="$AWK ['"\ " {last_section=section; section=\$ 3};"\ " /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\ " /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\ " /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\ " /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\ " /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\ " \$ 0!~/External *\|/{next};"\ " / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\ " {if(hide[section]) next};"\ " {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\ " {split(\$ 0,a,/\||\r/); split(a[2],s)};"\ " s[1]~/^[@?]/{print f,s[1],s[1]; next};"\ " s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\ " ' prfx=^$ac_symprfx]" else lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'" fi lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'" # Check to see that the pipe works correctly. pipe_works=no rm -f conftest* cat > conftest.$ac_ext <<_LT_EOF #ifdef __cplusplus extern "C" { #endif char nm_test_var; void nm_test_func(void); void nm_test_func(void){} #ifdef __cplusplus } #endif int main(){nm_test_var='a';nm_test_func();return(0);} _LT_EOF if AC_TRY_EVAL(ac_compile); then # Now try to grab the symbols. nlist=conftest.nm if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then # Try sorting and uniquifying the output. if sort "$nlist" | uniq > "$nlist"T; then mv -f "$nlist"T "$nlist" else rm -f "$nlist"T fi # Make sure that we snagged all the symbols we need. if $GREP ' nm_test_var$' "$nlist" >/dev/null; then if $GREP ' nm_test_func$' "$nlist" >/dev/null; then cat <<_LT_EOF > conftest.$ac_ext /* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */ #if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE /* DATA imports from DLLs on WIN32 can't be const, because runtime relocations are performed -- see ld's documentation on pseudo-relocs. */ # define LT@&t@_DLSYM_CONST #elif defined __osf__ /* This system does not cope well with relocations in const data. */ # define LT@&t@_DLSYM_CONST #else # define LT@&t@_DLSYM_CONST const #endif #ifdef __cplusplus extern "C" { #endif _LT_EOF # Now generate the symbol file. eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext' cat <<_LT_EOF >> conftest.$ac_ext /* The mapping between symbol names and symbols. */ LT@&t@_DLSYM_CONST struct { const char *name; void *address; } lt__PROGRAM__LTX_preloaded_symbols[[]] = { { "@PROGRAM@", (void *) 0 }, _LT_EOF $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext cat <<\_LT_EOF >> conftest.$ac_ext {0, (void *) 0} }; /* This works around a problem in FreeBSD linker */ #ifdef FREEBSD_WORKAROUND static const void *lt_preloaded_setup() { return lt__PROGRAM__LTX_preloaded_symbols; } #endif #ifdef __cplusplus } #endif _LT_EOF # Now try linking the two files. mv conftest.$ac_objext conftstm.$ac_objext lt_globsym_save_LIBS=$LIBS lt_globsym_save_CFLAGS=$CFLAGS LIBS=conftstm.$ac_objext CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)" if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then pipe_works=yes fi LIBS=$lt_globsym_save_LIBS CFLAGS=$lt_globsym_save_CFLAGS else echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD fi else echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD fi else echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD fi else echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD cat conftest.$ac_ext >&5 fi rm -rf conftest* conftst* # Do not use the global_symbol_pipe unless it works. if test yes = "$pipe_works"; then break else lt_cv_sys_global_symbol_pipe= fi done ]) if test -z "$lt_cv_sys_global_symbol_pipe"; then lt_cv_sys_global_symbol_to_cdecl= fi if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then AC_MSG_RESULT(failed) else AC_MSG_RESULT(ok) fi # Response file support. if test "$lt_cv_nm_interface" = "MS dumpbin"; then nm_file_list_spec='@' elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then nm_file_list_spec='@' fi _LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1], [Take the output of nm and produce a listing of raw symbols and C names]) _LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1], [Transform the output of nm in a proper C declaration]) _LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1], [Transform the output of nm into a list of symbols to manually relocate]) _LT_DECL([global_symbol_to_c_name_address], [lt_cv_sys_global_symbol_to_c_name_address], [1], [Transform the output of nm in a C name address pair]) _LT_DECL([global_symbol_to_c_name_address_lib_prefix], [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1], [Transform the output of nm in a C name address pair when lib prefix is needed]) _LT_DECL([nm_interface], [lt_cv_nm_interface], [1], [The name lister interface]) _LT_DECL([], [nm_file_list_spec], [1], [Specify filename containing input files for $NM]) ]) # _LT_CMD_GLOBAL_SYMBOLS # _LT_COMPILER_PIC([TAGNAME]) # --------------------------- m4_defun([_LT_COMPILER_PIC], [m4_require([_LT_TAG_COMPILER])dnl _LT_TAGVAR(lt_prog_compiler_wl, $1)= _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)= m4_if([$1], [CXX], [ # C++ specific cases for pic, static, wl, etc. if test yes = "$GXX"; then _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' case $host_os in aix*) # All AIX code is PIC. if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; m68k) # FIXME: we need at least 68020 code to build shared libraries, but # adding the '-m68020' flag to GCC prevents building anything better, # like '-m68040'. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' ;; esac ;; beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) # PIC is the default for these OSes. ;; mingw* | cygwin* | os2* | pw32* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). # Although the cygwin gcc ignores -fPIC, still need this for old-style # (--disable-auto-import) libraries m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) case $host_os in os2*) _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' ;; esac ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' ;; *djgpp*) # DJGPP does not support shared libraries at all _LT_TAGVAR(lt_prog_compiler_pic, $1)= ;; haiku*) # PIC is the default for Haiku. # The "-static" flag exists, but is broken. _LT_TAGVAR(lt_prog_compiler_static, $1)= ;; interix[[3-9]]*) # Interix 3.x gcc -fpic/-fPIC options generate broken code. # Instead, we relocate shared libraries at runtime. ;; sysv4*MP*) if test -d /usr/nec; then _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic fi ;; hpux*) # PIC is the default for 64-bit PA HP-UX, but not for 32-bit # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag # sets the default TLS model and affects inlining. case $host_cpu in hppa*64*) ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac ;; *qnx* | *nto*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac else case $host_os in aix[[4-9]]*) # All AIX code is PIC. if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' else _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' fi ;; chorus*) case $cc_basename in cxch68*) # Green Hills C++ Compiler # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a" ;; esac ;; mingw* | cygwin* | os2* | pw32* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) ;; dgux*) case $cc_basename in ec++*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' ;; ghcx*) # Green Hills C++ Compiler _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; *) ;; esac ;; freebsd* | dragonfly*) # FreeBSD uses GNU C++ ;; hpux9* | hpux10* | hpux11*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' if test ia64 != "$host_cpu"; then _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' fi ;; aCC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' case $host_cpu in hppa*64*|ia64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' ;; esac ;; *) ;; esac ;; interix*) # This is c89, which is MS Visual C++ (no shared libs) # Anyone wants to do a port? ;; irix5* | irix6* | nonstopux*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' # CC pic flag -KPIC is the default. ;; *) ;; esac ;; linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) case $cc_basename in KCC*) # KAI C++ Compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; ecpc* ) # old Intel C++ for x86_64, which still supported -KPIC. _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; icpc* ) # Intel C++, used to be incompatible with GCC. # ICC 10 doesn't accept -KPIC any more. _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; pgCC* | pgcpp*) # Portland Group C++ compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; cxx*) # Compaq C++ # Make sure the PIC flag is empty. It appears that all Alpha # Linux and Compaq Tru64 Unix objects are PIC. _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL 8.0, 9.0 on PPC and BlueGene _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' ;; *) case `$CC -V 2>&1 | sed 5q` in *Sun\ C*) # Sun C++ 5.9 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; esac ;; esac ;; lynxos*) ;; m88k*) ;; mvs*) case $cc_basename in cxx*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall' ;; *) ;; esac ;; netbsd*) ;; *qnx* | *nto*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; osf3* | osf4* | osf5*) case $cc_basename in KCC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,' ;; RCC*) # Rational C++ 2.4.1 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; cxx*) # Digital/Compaq C++ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # Make sure the PIC flag is empty. It appears that all Alpha # Linux and Compaq Tru64 Unix objects are PIC. _LT_TAGVAR(lt_prog_compiler_pic, $1)= _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; *) ;; esac ;; psos*) ;; solaris*) case $cc_basename in CC* | sunCC*) # Sun C++ 4.2, 5.x and Centerline C++ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; gcx*) # Green Hills C++ Compiler _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' ;; *) ;; esac ;; sunos4*) case $cc_basename in CC*) # Sun C++ 4.x _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; lcc*) # Lucid _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' ;; *) ;; esac ;; sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) case $cc_basename in CC*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; tandem*) case $cc_basename in NCC*) # NonStop-UX NCC 3.20 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' ;; *) ;; esac ;; vxworks*) ;; *) _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; esac fi ], [ if test yes = "$GCC"; then _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' case $host_os in aix*) # All AIX code is PIC. if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; amigaos*) case $host_cpu in powerpc) # see comment about AmigaOS4 .so support _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; m68k) # FIXME: we need at least 68020 code to build shared libraries, but # adding the '-m68020' flag to GCC prevents building anything better, # like '-m68040'. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4' ;; esac ;; beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*) # PIC is the default for these OSes. ;; mingw* | cygwin* | pw32* | os2* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). # Although the cygwin gcc ignores -fPIC, still need this for old-style # (--disable-auto-import) libraries m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) case $host_os in os2*) _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' ;; esac ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' ;; haiku*) # PIC is the default for Haiku. # The "-static" flag exists, but is broken. _LT_TAGVAR(lt_prog_compiler_static, $1)= ;; hpux*) # PIC is the default for 64-bit PA HP-UX, but not for 32-bit # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag # sets the default TLS model and affects inlining. case $host_cpu in hppa*64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac ;; interix[[3-9]]*) # Interix 3.x gcc -fpic/-fPIC options generate broken code. # Instead, we relocate shared libraries at runtime. ;; msdosdjgpp*) # Just because we use GCC doesn't mean we suddenly get shared libraries # on systems that don't support them. _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no enable_shared=no ;; *nto* | *qnx*) # QNX uses GNU C++, but need to define -shared option too, otherwise # it will coredump. _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared' ;; sysv4*MP*) if test -d /usr/nec; then _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic fi ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' ;; esac case $cc_basename in nvcc*) # Cuda Compiler Driver 2.2 _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker ' if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)" fi ;; esac else # PORTME Check for flag to pass linker flags through the system compiler. case $host_os in aix*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' if test ia64 = "$host_cpu"; then # AIX 5 now supports IA64 processor _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' else _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp' fi ;; darwin* | rhapsody*) # PIC is the default on this platform # Common symbols not allowed in MH_DYLIB files _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common' case $cc_basename in nagfor*) # NAG Fortran compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; mingw* | cygwin* | pw32* | os2* | cegcc*) # This hack is so that the source file can tell whether it is being # built for inclusion in a dll (and should export symbols for example). m4_if([$1], [GCJ], [], [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT']) case $host_os in os2*) _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static' ;; esac ;; hpux9* | hpux10* | hpux11*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but # not for PA HP-UX. case $host_cpu in hppa*64*|ia64*) # +Z the default ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z' ;; esac # Is there a better lt_prog_compiler_static that works with the bundled CC? _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive' ;; irix5* | irix6* | nonstopux*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # PIC (with -KPIC) is the default. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*) case $cc_basename in # old Intel for x86_64, which still supported -KPIC. ecc*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; # icc used to be incompatible with GCC. # ICC 10 doesn't accept -KPIC any more. icc* | ifort*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; # Lahey Fortran 8.1. lf95*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared' _LT_TAGVAR(lt_prog_compiler_static, $1)='--static' ;; nagfor*) # NAG Fortran compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; tcc*) # Fabrice Bellard et al's Tiny C Compiler _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*) # Portland Group compilers (*not* the Pentium gcc compiler, # which looks to be a dead project) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; ccc*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' # All Alpha code is PIC. _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared' ;; xl* | bgxl* | bgf* | mpixl*) # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink' ;; *) case `$CC -V 2>&1 | sed 5q` in *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*) # Sun Fortran 8.3 passes all unrecognized flags to the linker _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='' ;; *Sun\ F* | *Sun*Fortran*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ' ;; *Sun\ C*) # Sun C 5.9 _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' ;; *Intel*\ [[CF]]*Compiler*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-static' ;; *Portland\ Group*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; esac ;; esac ;; newsos6) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; 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then _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' fi ;; sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; unicos*) _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,' _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; uts4*) _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic' _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic' ;; *) _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no ;; esac fi ]) case $host_os in # For platforms that do not support PIC, -DPIC is meaningless: *djgpp*) _LT_TAGVAR(lt_prog_compiler_pic, $1)= ;; *) _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])" ;; esac AC_CACHE_CHECK([for $compiler option to produce PIC], [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)], [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)]) _LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1) # # Check to make sure the PIC flag actually works. # if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; 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The following line is correct: shared_flag='-G' else if test yes = "$aix_use_runtimelinking"; then shared_flag='$wl-G' else shared_flag='$wl-bM:SRE' fi shared_flag_aix='$wl-bM:SRE' shared_flag_svr4='$wl-G' fi fi _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall' # It seems that -bexpall does not export symbols beginning with # underscore (_), so it is better to generate a list of symbols to export. _LT_TAGVAR(always_export_symbols, $1)=yes if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then # Warning - without using the other runtime loading flags (-brtl), # -berok will link without error, but may produce a broken library. _LT_TAGVAR(allow_undefined_flag, $1)='-berok' # Determine the default libpath from the value encoded in an # empty executable. _LT_SYS_MODULE_PATH_AIX([$1]) _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag else if test ia64 = "$host_cpu"; then _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib' _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs" _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols" else # Determine the default libpath from the value encoded in an # empty executable. _LT_SYS_MODULE_PATH_AIX([$1]) _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath" # Warning - without using the other run time loading flags, # -berok will link without error, but may produce a broken library. _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok' _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok' if test yes = "$with_gnu_ld"; then # We only use this code for GNU lds that support --whole-archive. _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' else # Exported symbols can be pulled into shared objects from archives _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience' fi _LT_TAGVAR(archive_cmds_need_lc, $1)=yes _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d' # -brtl affects multiple linker settings, -berok does not and is overridden later compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`' if test svr4 != "$with_aix_soname"; then # This is similar to how AIX traditionally builds its shared libraries. _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname' fi if test aix != "$with_aix_soname"; then _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! 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AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol], [lt_cv_irix_exported_symbol], [save_LDFLAGS=$LDFLAGS LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null" AC_LINK_IFELSE( [AC_LANG_SOURCE( [AC_LANG_CASE([C], [[int foo (void) { return 0; }]], [C++], [[int foo (void) { return 0; }]], [Fortran 77], [[ subroutine foo end]], [Fortran], [[ subroutine foo end]])])], [lt_cv_irix_exported_symbol=yes], [lt_cv_irix_exported_symbol=no]) LDFLAGS=$save_LDFLAGS]) if test yes = "$lt_cv_irix_exported_symbol"; then _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib' fi else _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib' fi _LT_TAGVAR(archive_cmds_need_lc, $1)='no' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: _LT_TAGVAR(inherit_rpath, $1)=yes _LT_TAGVAR(link_all_deplibs, $1)=yes ;; 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then _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E' else _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' fi else _LT_TAGVAR(ld_shlibs, $1)=no fi ;; os2*) _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir' _LT_TAGVAR(hardcode_minus_L, $1)=yes _LT_TAGVAR(allow_undefined_flag, $1)=unsupported shrext_cmds=.dll _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ $ECHO EXPORTS >> $output_objdir/$libname.def~ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ emximp -o $lib $output_objdir/$libname.def' _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~ $ECHO EXPORTS >> $output_objdir/$libname.def~ prefix_cmds="$SED"~ if test EXPORTS = "`$SED 1q $export_symbols`"; then prefix_cmds="$prefix_cmds -e 1d"; fi~ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~ emximp -o $lib $output_objdir/$libname.def' _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def' _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes ;; osf3*) if test yes = "$GCC"; then _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' else _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' fi _LT_TAGVAR(archive_cmds_need_lc, $1)='no' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: ;; osf4* | osf5*) # as osf3* with the addition of -msym flag if test yes = "$GCC"; then _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*' _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir' else _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*' _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~ $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp' # Both c and cxx compiler support -rpath directly _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' fi _LT_TAGVAR(archive_cmds_need_lc, $1)='no' _LT_TAGVAR(hardcode_libdir_separator, $1)=: ;; solaris*) _LT_TAGVAR(no_undefined_flag, $1)=' -z defs' if test yes = "$GCC"; then wlarc='$wl' _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' else case `$CC -V 2>&1` in *"Compilers 5.0"*) wlarc='' _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp' ;; *) wlarc='$wl' _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags' _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~ $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp' ;; esac fi _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir' _LT_TAGVAR(hardcode_shlibpath_var, $1)=no case $host_os in solaris2.[[0-5]] | solaris2.[[0-5]].*) ;; *) # The compiler driver will combine and reorder linker options, # but understands '-z linker_flag'. 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(KAI) C++ Compiler # KCC will only create a shared library if the output file # ends with ".so" (or ".sl" for HP-UX), so rename the library # to its proper name (with version) after linking. _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib' # Commands to make compiler produce verbose output that lists # what "hidden" libraries, object files and flags are used when # linking a shared library. # # There doesn't appear to be a way to prevent this compiler from # explicitly linking system object files so we need to strip them # from the output so that they don't get included in the library # dependencies. output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"' _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' # Archives containing C++ object files must be created using # "CC -Bstatic", where "CC" is the KAI C++ compiler. _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;; icpc* | ecpc* ) # Intel C++ with_gnu_ld=yes # version 8.0 and above of icpc choke on multiply defined symbols # if we add $predep_objects and $postdep_objects, however 7.1 and # earlier do not add the objects themselves. case `$CC -V 2>&1` in *"Version 7."*) _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; *) # Version 8.0 or newer tmp_idyn= case $host_cpu in ia64*) tmp_idyn=' -i_dynamic';; esac _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; esac _LT_TAGVAR(archive_cmds_need_lc, $1)=no _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive' ;; pgCC* | pgcpp*) # Portland Group C++ compiler case `$CC -V` in *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*) _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~ compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"' _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~ $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~ $RANLIB $oldlib' _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~ rm -rf $tpldir~ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; *) # Version 6 and above use weak symbols _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib' ;; esac _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir' _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic' _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive' ;; cxx*) # Compaq C++ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib' _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols' runpath_var=LD_RUN_PATH _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir' _LT_TAGVAR(hardcode_libdir_separator, $1)=: # Commands to make compiler produce verbose output that lists # what "hidden" libraries, object files and flags are used when # linking a shared library. # # There doesn't appear to be a way to prevent this compiler from # explicitly linking system object files so we need to strip them # from the output so that they don't get included in the library # dependencies. output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; 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AC_DEFUN_ONCE([gl_LIMITS_H], [ gl_CHECK_NEXT_HEADERS([limits.h]) AC_CACHE_CHECK([whether limits.h has LLONG_MAX, WORD_BIT, ULLONG_WIDTH etc.], [gl_cv_header_limits_width], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__ #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 #endif #include long long llm = LLONG_MAX; int wb = WORD_BIT; int ullw = ULLONG_WIDTH; ]])], [gl_cv_header_limits_width=yes], [gl_cv_header_limits_width=no])]) if test "$gl_cv_header_limits_width" = yes; then LIMITS_H= else LIMITS_H=limits.h fi AC_SUBST([LIMITS_H]) AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"]) ]) dnl Unconditionally enables the replacement of . AC_DEFUN([gl_REPLACE_LIMITS_H], [ AC_REQUIRE([gl_LIMITS_H]) LIMITS_H='limits.h' AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"]) ]) # locale-fr.m4 serial 19 dnl Copyright (C) 2003, 2005-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl Determine the name of a french locale with traditional encoding. AC_DEFUN([gt_LOCALE_FR], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([AM_LANGINFO_CODESET]) AC_CACHE_CHECK([for a traditional french locale], [gt_cv_locale_fr], [ AC_LANG_CONFTEST([AC_LANG_SOURCE([ changequote(,)dnl #include #include #if HAVE_LANGINFO_CODESET # include #endif #include #include struct tm t; char buf[16]; int main () { /* On BeOS and Haiku, locales are not implemented in libc. 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On OpenBSD 4.0, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "646". In this situation, some unit tests fail. On MirBSD 10, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "UTF-8". */ # if HAVE_LANGINFO_CODESET { const char *cs = nl_langinfo (CODESET); if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0 || strcmp (cs, "UTF-8") == 0) return 1; } # endif # ifdef __CYGWIN__ /* On Cygwin, avoid locale names without encoding suffix, because the locale_charset() function relies on the encoding suffix. Note that LC_ALL is set on the command line. */ if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; # endif /* Check whether in the abbreviation of the second month, the second character (should be U+00E9: LATIN SMALL LETTER E WITH ACUTE) is only one byte long. 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On NetBSD 3.0 in the fr_FR.ISO8859-1 locale, localeconv()->decimal_point are nl_langinfo(RADIXCHAR) are both ".". */ if (localeconv () ->decimal_point[0] != ',') return 1; # endif return 0; #endif } changequote([,])dnl ])]) if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then case "$host_os" in # Handle native Windows specially, because there setlocale() interprets # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", # "fr" or "fra" as "French" or "French_France.1252", # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", # "ja" as "Japanese" or "Japanese_Japan.932", # and similar. mingw*) # Test for the native Windows locale name. if (LC_ALL=French_France.1252 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr=French_France.1252 else # None found. gt_cv_locale_fr=none fi ;; *) # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the # configure script would override the LC_ALL setting. 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AC_DEFUN([gt_LOCALE_FR_UTF8], [ AC_REQUIRE([AM_LANGINFO_CODESET]) AC_CACHE_CHECK([for a french Unicode locale], [gt_cv_locale_fr_utf8], [ AC_LANG_CONFTEST([AC_LANG_SOURCE([ changequote(,)dnl #include #include #if HAVE_LANGINFO_CODESET # include #endif #include #include struct tm t; char buf[16]; int main () { /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl imitates locale dependent behaviour by looking at the environment variables, and all locales use the UTF-8 encoding. */ #if !(defined __BEOS__ || defined __HAIKU__) /* Check whether the given locale name is recognized by the system. */ # if defined _WIN32 && !defined __CYGWIN__ /* On native Windows, setlocale(category, "") looks at the system settings, not at the environment variables. Also, when an encoding suffix such as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE category of the locale to "C". */ if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) return 1; # else if (setlocale (LC_ALL, "") == NULL) return 1; # endif /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) is empty, and the behaviour of Tcl 8.4 in this locale is not useful. On OpenBSD 4.0, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "646". In this situation, some unit tests fail. */ # if HAVE_LANGINFO_CODESET { const char *cs = nl_langinfo (CODESET); if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0) return 1; } # endif # ifdef __CYGWIN__ /* On Cygwin, avoid locale names without encoding suffix, because the locale_charset() function relies on the encoding suffix. Note that LC_ALL is set on the command line. */ if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; # endif /* Check whether in the abbreviation of the second month, the second character (should be U+00E9: LATIN SMALL LETTER E WITH ACUTE) is two bytes long, with UTF-8 encoding. */ t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; if (strftime (buf, sizeof (buf), "%b", &t) < 4 || buf[1] != (char) 0xc3 || buf[2] != (char) 0xa9 || buf[3] != 'v') return 1; #endif #if !defined __BIONIC__ /* Bionic libc's 'struct lconv' is just a dummy. */ /* Check whether the decimal separator is a comma. On NetBSD 3.0 in the fr_FR.ISO8859-1 locale, localeconv()->decimal_point are nl_langinfo(RADIXCHAR) are both ".". */ if (localeconv () ->decimal_point[0] != ',') return 1; #endif return 0; } changequote([,])dnl ])]) if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then case "$host_os" in # Handle native Windows specially, because there setlocale() interprets # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", # "fr" or "fra" as "French" or "French_France.1252", # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", # "ja" as "Japanese" or "Japanese_Japan.932", # and similar. mingw*) # Test for the hypothetical native Windows locale name. if (LC_ALL=French_France.65001 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr_utf8=French_France.65001 else # None found. gt_cv_locale_fr_utf8=none fi ;; *) # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the # configure script would override the LC_ALL setting. Likewise for # LC_CTYPE, which is also set at the beginning of the configure script. # Test for the usual locale name. if (LC_ALL=fr_FR LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr_utf8=fr_FR else # Test for the locale name with explicit encoding suffix. if (LC_ALL=fr_FR.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr_utf8=fr_FR.UTF-8 else # Test for the Solaris 7 locale name. if (LC_ALL=fr.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr_utf8=fr.UTF-8 else # None found. gt_cv_locale_fr_utf8=none fi fi fi ;; esac fi rm -fr conftest* ]) LOCALE_FR_UTF8=$gt_cv_locale_fr_utf8 AC_SUBST([LOCALE_FR_UTF8]) ]) # locale-ja.m4 serial 14 dnl Copyright (C) 2003, 2005-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl Determine the name of a japanese locale with EUC-JP encoding. AC_DEFUN([gt_LOCALE_JA], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([AM_LANGINFO_CODESET]) AC_CACHE_CHECK([for a traditional japanese locale], [gt_cv_locale_ja], [ AC_LANG_CONFTEST([AC_LANG_SOURCE([ changequote(,)dnl #include #include #if HAVE_LANGINFO_CODESET # include #endif #include #include struct tm t; char buf[16]; int main () { /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl imitates locale dependent behaviour by looking at the environment variables, and all locales use the UTF-8 encoding. */ #if defined __BEOS__ || defined __HAIKU__ return 1; #else /* Check whether the given locale name is recognized by the system. */ # if defined _WIN32 && !defined __CYGWIN__ /* On native Windows, setlocale(category, "") looks at the system settings, not at the environment variables. Also, when an encoding suffix such as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE category of the locale to "C". */ if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) return 1; # else if (setlocale (LC_ALL, "") == NULL) return 1; # endif /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) is empty, and the behaviour of Tcl 8.4 in this locale is not useful. On OpenBSD 4.0, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "646". In this situation, some unit tests fail. On MirBSD 10, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "UTF-8". */ # if HAVE_LANGINFO_CODESET { const char *cs = nl_langinfo (CODESET); if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0 || strcmp (cs, "UTF-8") == 0) return 1; } # endif # ifdef __CYGWIN__ /* On Cygwin, avoid locale names without encoding suffix, because the locale_charset() function relies on the encoding suffix. Note that LC_ALL is set on the command line. */ if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; # endif /* Check whether MB_CUR_MAX is > 1. This excludes the dysfunctional locales on Cygwin 1.5.x. */ if (MB_CUR_MAX == 1) return 1; /* Check whether in a month name, no byte in the range 0x80..0x9F occurs. This excludes the UTF-8 encoding (except on MirBSD). */ { const char *p; t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1; for (p = buf; *p != '\0'; p++) if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0) return 1; } return 0; #endif } changequote([,])dnl ])]) if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then case "$host_os" in # Handle native Windows specially, because there setlocale() interprets # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", # "fr" or "fra" as "French" or "French_France.1252", # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", # "ja" as "Japanese" or "Japanese_Japan.932", # and similar. mingw*) # Note that on native Windows, the Japanese locale is # Japanese_Japan.932, and CP932 is very different from EUC-JP, so we # cannot use it here. gt_cv_locale_ja=none ;; *) # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the # configure script would override the LC_ALL setting. Likewise for # LC_CTYPE, which is also set at the beginning of the configure script. # Test for the AIX locale name. if (LC_ALL=ja_JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_ja=ja_JP else # Test for the locale name with explicit encoding suffix. if (LC_ALL=ja_JP.EUC-JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_ja=ja_JP.EUC-JP else # Test for the HP-UX, OSF/1, NetBSD locale name. if (LC_ALL=ja_JP.eucJP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_ja=ja_JP.eucJP else # Test for the IRIX, FreeBSD locale name. if (LC_ALL=ja_JP.EUC LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_ja=ja_JP.EUC else # Test for the Solaris 7 locale name. if (LC_ALL=ja LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_ja=ja else # Special test for NetBSD 1.6. if test -f /usr/share/locale/ja_JP.eucJP/LC_CTYPE; then gt_cv_locale_ja=ja_JP.eucJP else # None found. gt_cv_locale_ja=none fi fi fi fi fi fi ;; esac fi rm -fr conftest* ]) LOCALE_JA=$gt_cv_locale_ja AC_SUBST([LOCALE_JA]) ]) # locale-tr.m4 serial 12 dnl Copyright (C) 2003, 2005-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl Determine the name of a turkish locale with UTF-8 encoding. AC_DEFUN([gt_LOCALE_TR_UTF8], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([AM_LANGINFO_CODESET]) AC_CACHE_CHECK([for a turkish Unicode locale], [gt_cv_locale_tr_utf8], [ AC_LANG_CONFTEST([AC_LANG_SOURCE([ changequote(,)dnl #include #include #if HAVE_LANGINFO_CODESET # include #endif #include #include #include struct tm t; char buf[16]; int main () { /* On BeOS, locales are not implemented in libc. Rather, libintl imitates locale dependent behaviour by looking at the environment variables, and all locales use the UTF-8 encoding. But BeOS does not implement the Turkish upper-/lowercase mappings. Therefore, let this program return 1 on BeOS. */ /* Check whether the given locale name is recognized by the system. */ #if defined _WIN32 && !defined __CYGWIN__ /* On native Windows, setlocale(category, "") looks at the system settings, not at the environment variables. Also, when an encoding suffix such as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE category of the locale to "C". */ if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) return 1; #else if (setlocale (LC_ALL, "") == NULL) return 1; #endif /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". On Mac OS X 10.3.5 (Darwin 7.5) in the tr_TR locale, nl_langinfo(CODESET) is empty, and the behaviour of Tcl 8.4 in this locale is not useful. On OpenBSD 4.0, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "646". In this situation, some unit tests fail. */ #if HAVE_LANGINFO_CODESET { const char *cs = nl_langinfo (CODESET); if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0) return 1; } #endif #ifdef __CYGWIN__ /* On Cygwin, avoid locale names without encoding suffix, because the locale_charset() function relies on the encoding suffix. Note that LC_ALL is set on the command line. */ if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; #endif /* Check whether in the abbreviation of the eighth month, the second character (should be U+011F: LATIN SMALL LETTER G WITH BREVE) is two bytes long, with UTF-8 encoding. */ t.tm_year = 1992 - 1900; t.tm_mon = 8 - 1; t.tm_mday = 19; if (strftime (buf, sizeof (buf), "%b", &t) < 4 || buf[1] != (char) 0xc4 || buf[2] != (char) 0x9f) return 1; /* Check whether the upper-/lowercase mappings are as expected for Turkish. */ if (towupper ('i') != 0x0130 || towlower (0x0130) != 'i' || towupper(0x0131) != 'I' || towlower ('I') != 0x0131) return 1; return 0; } changequote([,])dnl ])]) if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then case "$host_os" in # Handle native Windows specially, because there setlocale() interprets # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", # "fr" or "fra" as "French" or "French_France.1252", # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", # "ja" as "Japanese" or "Japanese_Japan.932", # and similar. mingw*) # Test for the hypothetical native Windows locale name. if (LC_ALL=Turkish_Turkey.65001 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_tr_utf8=Turkish_Turkey.65001 else # None found. gt_cv_locale_tr_utf8=none fi ;; *) # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the # configure script would override the LC_ALL setting. Likewise for # LC_CTYPE, which is also set at the beginning of the configure script. # Test for the usual locale name. if (LC_ALL=tr_TR LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_tr_utf8=tr_TR else # Test for the locale name with explicit encoding suffix. if (LC_ALL=tr_TR.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_tr_utf8=tr_TR.UTF-8 else # Test for the Solaris 7 locale name. if (LC_ALL=tr.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_tr_utf8=tr.UTF-8 else # None found. gt_cv_locale_tr_utf8=none fi fi fi ;; esac else gt_cv_locale_tr_utf8=none fi rm -fr conftest* ]) LOCALE_TR_UTF8=$gt_cv_locale_tr_utf8 AC_SUBST([LOCALE_TR_UTF8]) ]) # locale-zh.m4 serial 14 dnl Copyright (C) 2003, 2005-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl Determine the name of a chinese locale with GB18030 encoding. AC_DEFUN([gt_LOCALE_ZH_CN], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([AM_LANGINFO_CODESET]) AC_CACHE_CHECK([for a transitional chinese locale], [gt_cv_locale_zh_CN], [ AC_LANG_CONFTEST([AC_LANG_SOURCE([ changequote(,)dnl #include #include #include #if HAVE_LANGINFO_CODESET # include #endif #include #include struct tm t; char buf[16]; int main () { /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl imitates locale dependent behaviour by looking at the environment variables, and all locales use the UTF-8 encoding. */ #if defined __BEOS__ || defined __HAIKU__ return 1; #else /* Check whether the given locale name is recognized by the system. */ # if defined _WIN32 && !defined __CYGWIN__ /* On native Windows, setlocale(category, "") looks at the system settings, not at the environment variables. Also, when an encoding suffix such as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE category of the locale to "C". */ if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) return 1; # else if (setlocale (LC_ALL, "") == NULL) return 1; # endif /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) is empty, and the behaviour of Tcl 8.4 in this locale is not useful. On OpenBSD 4.0, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "646". In this situation, some unit tests fail. On MirBSD 10, when an unsupported locale is specified, setlocale() succeeds but then nl_langinfo(CODESET) is "UTF-8". */ # if HAVE_LANGINFO_CODESET { const char *cs = nl_langinfo (CODESET); if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0 || strcmp (cs, "UTF-8") == 0) return 1; } # endif # ifdef __CYGWIN__ /* On Cygwin, avoid locale names without encoding suffix, because the locale_charset() function relies on the encoding suffix. Note that LC_ALL is set on the command line. */ if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; # endif /* Check whether in a month name, no byte in the range 0x80..0x9F occurs. This excludes the UTF-8 encoding (except on MirBSD). */ { const char *p; t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1; for (p = buf; *p != '\0'; p++) if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0) return 1; } /* Check whether a typical GB18030 multibyte sequence is recognized as a single wide character. This excludes the GB2312 and GBK encodings. */ if (mblen ("\203\062\332\066", 5) != 4) return 1; return 0; #endif } changequote([,])dnl ])]) if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then case "$host_os" in # Handle native Windows specially, because there setlocale() interprets # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", # "fr" or "fra" as "French" or "French_France.1252", # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", # "ja" as "Japanese" or "Japanese_Japan.932", # and similar. mingw*) # Test for the hypothetical native Windows locale name. if (LC_ALL=Chinese_China.54936 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_zh_CN=Chinese_China.54936 else # None found. gt_cv_locale_zh_CN=none fi ;; solaris2.8) # On Solaris 8, the locales zh_CN.GB18030, zh_CN.GBK, zh.GBK are # broken. One witness is the test case in gl_MBRTOWC_SANITYCHECK. # Another witness is that "LC_ALL=zh_CN.GB18030 bash -c true" dumps core. gt_cv_locale_zh_CN=none ;; *) # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the # configure script would override the LC_ALL setting. Likewise for # LC_CTYPE, which is also set at the beginning of the configure script. # Test for the locale name without encoding suffix. if (LC_ALL=zh_CN LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_zh_CN=zh_CN else # Test for the locale name with explicit encoding suffix. if (LC_ALL=zh_CN.GB18030 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_zh_CN=zh_CN.GB18030 else # None found. gt_cv_locale_zh_CN=none fi fi ;; esac else # If there was a link error, due to mblen(), the system is so old that # it certainly doesn't have a chinese locale. gt_cv_locale_zh_CN=none fi rm -fr conftest* ]) LOCALE_ZH_CN=$gt_cv_locale_zh_CN AC_SUBST([LOCALE_ZH_CN]) ]) # locale_h.m4 serial 24 dnl Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_LOCALE_H], [ dnl Use AC_REQUIRE here, so that the default behavior below is expanded dnl once only, before all statements that occur in other macros. AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) dnl Persuade glibc to define locale_t and the int_p_*, int_n_* dnl members of 'struct lconv'. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl If is replaced, then must also be replaced. AC_REQUIRE([gl_STDDEF_H]) AC_REQUIRE([gl_LOCALE_T]) dnl Solaris 11.0 defines the int_p_*, int_n_* members of 'struct lconv' dnl only if _LCONV_C99 is defined. AC_REQUIRE([AC_CANONICAL_HOST]) case "$host_os" in solaris*) AC_DEFINE([_LCONV_C99], [1], [Define to 1 on Solaris.]) ;; esac AC_CACHE_CHECK([whether locale.h conforms to POSIX:2001], [gl_cv_header_locale_h_posix2001], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include int x = LC_MESSAGES; int y = sizeof (((struct lconv *) 0)->decimal_point);]], [[]])], [gl_cv_header_locale_h_posix2001=yes], [gl_cv_header_locale_h_posix2001=no])]) dnl Check whether 'struct lconv' is complete. dnl Bionic libc's 'struct lconv' is just a dummy. dnl On OpenBSD 4.9, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.x, dnl mingw, MSVC 9, it lacks the int_p_* and int_n_* members. AC_CACHE_CHECK([whether struct lconv is properly defined], [gl_cv_sys_struct_lconv_ok], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include struct lconv l; int x = sizeof (l.decimal_point); int y = sizeof (l.int_p_cs_precedes);]], [[]])], [gl_cv_sys_struct_lconv_ok=yes], [gl_cv_sys_struct_lconv_ok=no]) ]) if test $gl_cv_sys_struct_lconv_ok = no; then dnl On native Windows with MSVC, merely define these member names as macros. dnl This avoids trouble in C++ mode. case "$host_os" in mingw*) AC_EGREP_CPP([Special], [ #ifdef _MSC_VER Special #endif ], [], [REPLACE_STRUCT_LCONV=1]) ;; *) REPLACE_STRUCT_LCONV=1 ;; esac fi dnl is always overridden, because of GNULIB_POSIXCHECK. gl_NEXT_HEADERS([locale.h]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include /* Some systems provide declarations in a non-standard header. */ #if HAVE_XLOCALE_H # include #endif ]], [setlocale newlocale duplocale freelocale]) ]) dnl Checks to determine whether the system has the locale_t type, dnl and how to obtain it. AC_DEFUN([gl_LOCALE_T], [ dnl Persuade glibc and Solaris to define locale_t. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl Check whether use of locale_t requires inclusion of , dnl e.g. on Mac OS X 10.5. If does not define locale_t by dnl itself, we assume that will do so. AC_CACHE_CHECK([whether locale.h defines locale_t], [gl_cv_header_locale_has_locale_t], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include locale_t x;]], [[]])], [gl_cv_header_locale_has_locale_t=yes], [gl_cv_header_locale_has_locale_t=no]) ]) dnl Check for . AC_CHECK_HEADERS_ONCE([xlocale.h]) if test $ac_cv_header_xlocale_h = yes; then HAVE_XLOCALE_H=1 if test $gl_cv_header_locale_has_locale_t = yes; then gl_cv_header_locale_h_needs_xlocale_h=no else gl_cv_header_locale_h_needs_xlocale_h=yes fi HAVE_LOCALE_T=1 else HAVE_XLOCALE_H=0 gl_cv_header_locale_h_needs_xlocale_h=no if test $gl_cv_header_locale_has_locale_t = yes; then HAVE_LOCALE_T=1 else HAVE_LOCALE_T=0 fi fi AC_SUBST([HAVE_XLOCALE_H]) ]) AC_DEFUN([gl_LOCALE_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_LOCALE_H_DEFAULTS], [ GNULIB_LOCALECONV=0; AC_SUBST([GNULIB_LOCALECONV]) GNULIB_SETLOCALE=0; AC_SUBST([GNULIB_SETLOCALE]) GNULIB_SETLOCALE_NULL=0; AC_SUBST([GNULIB_SETLOCALE_NULL]) GNULIB_DUPLOCALE=0; AC_SUBST([GNULIB_DUPLOCALE]) GNULIB_LOCALENAME=0; AC_SUBST([GNULIB_LOCALENAME]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_NEWLOCALE=1; AC_SUBST([HAVE_NEWLOCALE]) HAVE_DUPLOCALE=1; AC_SUBST([HAVE_DUPLOCALE]) HAVE_FREELOCALE=1; AC_SUBST([HAVE_FREELOCALE]) REPLACE_LOCALECONV=0; AC_SUBST([REPLACE_LOCALECONV]) REPLACE_SETLOCALE=0; AC_SUBST([REPLACE_SETLOCALE]) REPLACE_NEWLOCALE=0; AC_SUBST([REPLACE_NEWLOCALE]) REPLACE_DUPLOCALE=0; AC_SUBST([REPLACE_DUPLOCALE]) REPLACE_FREELOCALE=0; AC_SUBST([REPLACE_FREELOCALE]) REPLACE_STRUCT_LCONV=0; AC_SUBST([REPLACE_STRUCT_LCONV]) ]) # localename.m4 serial 7 dnl Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_LOCALENAME], [ AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) AC_REQUIRE([gl_LOCALE_T]) AC_REQUIRE([gt_LC_MESSAGES]) AC_REQUIRE([gt_INTL_THREAD_LOCALE_NAME]) AC_REQUIRE([gt_INTL_MACOSX]) AC_CHECK_HEADERS_ONCE([langinfo.h]) if test $HAVE_LOCALE_T = 1; then AC_CHECK_FUNCS_ONCE([newlocale duplocale freelocale]) gl_func_newlocale="$ac_cv_func_newlocale" gl_func_duplocale="$ac_cv_func_duplocale" gl_func_freelocale="$ac_cv_func_freelocale" else dnl In 2019, some versions of z/OS lack the locale_t type and have broken dnl newlocale, duplocale, freelocale functions. gl_func_newlocale=no gl_func_duplocale=no gl_func_freelocale=no fi if test $gl_func_newlocale != yes; then HAVE_NEWLOCALE=0 fi if test $gl_func_duplocale != yes; then HAVE_DUPLOCALE=0 fi if test $gl_func_freelocale != yes; then HAVE_FREELOCALE=0 fi if test $gt_nameless_locales = yes; then REPLACE_NEWLOCALE=1 REPLACE_DUPLOCALE=1 REPLACE_FREELOCALE=1 fi ]) # localtime-buffer.m4 serial 1 dnl Copyright (C) 2017-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_LOCALTIME_BUFFER_DEFAULTS], [ NEED_LOCALTIME_BUFFER=0 ]) dnl Macro invoked from other modules, to signal that the compilation of dnl module 'localtime-buffer' is needed. AC_DEFUN([gl_LOCALTIME_BUFFER_NEEDED], [ AC_REQUIRE([gl_LOCALTIME_BUFFER_DEFAULTS]) AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) NEED_LOCALTIME_BUFFER=1 REPLACE_GMTIME=1 REPLACE_LOCALTIME=1 ]) # lock.m4 serial 14 dnl Copyright (C) 2005-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. AC_DEFUN([gl_LOCK], [ AC_REQUIRE([gl_THREADLIB]) if test "$gl_threads_api" = posix; then # OSF/1 4.0 and Mac OS X 10.1 lack the pthread_rwlock_t type and the # pthread_rwlock_* functions. has_rwlock=false AC_CHECK_TYPE([pthread_rwlock_t], [has_rwlock=true AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1], [Define if the POSIX multithreading library has read/write locks.])], [], [#include ]) if $has_rwlock; then gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER fi # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro. AC_COMPILE_IFELSE([ AC_LANG_PROGRAM( [[#include ]], [[ #if __FreeBSD__ == 4 error "No, in FreeBSD 4.0 recursive mutexes actually don't work." #elif (defined __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ \ && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1070) error "No, in Mac OS X < 10.7 recursive mutexes actually don't work." #else int x = (int)PTHREAD_MUTEX_RECURSIVE; return !x; #endif ]])], [AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE], [1], [Define if the defines PTHREAD_MUTEX_RECURSIVE.])]) fi gl_PREREQ_LOCK ]) # Prerequisites of lib/glthread/lock.c. AC_DEFUN([gl_PREREQ_LOCK], [:]) # lseek.m4 serial 10 dnl Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_LSEEK], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([AC_PROG_CC]) AC_CHECK_HEADERS_ONCE([unistd.h]) AC_CACHE_CHECK([whether lseek detects pipes], [gl_cv_func_lseek_pipe], [case "$host_os" in mingw*) dnl Native Windows. dnl The result of lseek (fd, (off_t)0, SEEK_CUR) or dnl SetFilePointer(handle, 0, NULL, FILE_CURRENT) dnl for a pipe depends on the environment: In a Cygwin 1.5 dnl environment it succeeds (wrong); in a Cygwin 1.7 environment dnl it fails with a wrong errno value. gl_cv_func_lseek_pipe=no ;; *) if test $cross_compiling = no; then AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include /* for off_t */ #include /* for SEEK_CUR */ #if HAVE_UNISTD_H # include #else /* on Windows with MSVC */ # include #endif ]], [[ /* Exit with success only if stdin is seekable. */ return lseek (0, (off_t)0, SEEK_CUR) < 0; ]])], [if test -s conftest$ac_exeext \ && ./conftest$ac_exeext < conftest.$ac_ext \ && test 1 = "`echo hi \ | { ./conftest$ac_exeext; echo $?; cat >/dev/null; }`"; then gl_cv_func_lseek_pipe=yes else gl_cv_func_lseek_pipe=no fi ], [gl_cv_func_lseek_pipe=no]) else AC_COMPILE_IFELSE( [AC_LANG_SOURCE([[ #if defined __BEOS__ /* BeOS mistakenly return 0 when trying to seek on pipes. */ Choke me. #endif]])], [gl_cv_func_lseek_pipe=yes], [gl_cv_func_lseek_pipe=no]) fi ;; esac ]) if test $gl_cv_func_lseek_pipe = no; then REPLACE_LSEEK=1 AC_DEFINE([LSEEK_PIPE_BROKEN], [1], [Define to 1 if lseek does not detect pipes.]) fi AC_REQUIRE([gl_SYS_TYPES_H]) if test $WINDOWS_64_BIT_OFF_T = 1; then REPLACE_LSEEK=1 fi ]) # serial 33 # Copyright (C) 1997-2001, 2003-2020 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. dnl From Jim Meyering. AC_DEFUN([gl_FUNC_LSTAT], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) dnl If lstat does not exist, the replacement does dnl "#define lstat stat", and lstat.c is a no-op. AC_CHECK_FUNCS_ONCE([lstat]) if test $ac_cv_func_lstat = yes; then AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) case $host_os,$gl_cv_func_lstat_dereferences_slashed_symlink in solaris* | *no) REPLACE_LSTAT=1 ;; esac else HAVE_LSTAT=0 fi ]) # Prerequisites of lib/lstat.c. AC_DEFUN([gl_PREREQ_LSTAT], [:]) AC_DEFUN([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK], [ dnl We don't use AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK any more, because it dnl is no longer maintained in Autoconf and because it invokes AC_LIBOBJ. AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether lstat correctly handles trailing slash], [gl_cv_func_lstat_dereferences_slashed_symlink], [rm -f conftest.sym conftest.file echo >conftest.file AC_RUN_IFELSE( [AC_LANG_PROGRAM( [AC_INCLUDES_DEFAULT], [[struct stat sbuf; if (symlink ("conftest.file", "conftest.sym") != 0) return 1; /* Linux will dereference the symlink and fail, as required by POSIX. That is better in the sense that it means we will not have to compile and use the lstat wrapper. */ return lstat ("conftest.sym/", &sbuf) == 0; ]])], [gl_cv_func_lstat_dereferences_slashed_symlink=yes], [gl_cv_func_lstat_dereferences_slashed_symlink=no], [case "$host_os" in linux-* | linux) # Guess yes on Linux systems. gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;; *-gnu* | gnu*) # Guess yes on glibc systems. gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;; mingw*) # Guess no on native Windows. gl_cv_func_lstat_dereferences_slashed_symlink="guessing no" ;; *) # If we don't know, obey --enable-cross-guesses. gl_cv_func_lstat_dereferences_slashed_symlink="$gl_cross_guess_normal" ;; esac ]) rm -f conftest.sym conftest.file ]) case "$gl_cv_func_lstat_dereferences_slashed_symlink" in *yes) AC_DEFINE_UNQUOTED([LSTAT_FOLLOWS_SLASHED_SYMLINK], [1], [Define to 1 if 'lstat' dereferences a symlink specified with a trailing slash.]) ;; esac ]) # Helper functions for option handling. -*- Autoconf -*- # # Copyright (C) 2004-2005, 2007-2009, 2011-2015 Free Software # Foundation, Inc. # Written by Gary V. Vaughan, 2004 # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # serial 8 ltoptions.m4 # This is to help aclocal find these macros, as it can't see m4_define. AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])]) # _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME) # ------------------------------------------ m4_define([_LT_MANGLE_OPTION], [[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])]) # _LT_SET_OPTION(MACRO-NAME, OPTION-NAME) # --------------------------------------- # Set option OPTION-NAME for macro MACRO-NAME, and if there is a # matching handler defined, dispatch to it. Other OPTION-NAMEs are # saved as a flag. m4_define([_LT_SET_OPTION], [m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]), _LT_MANGLE_DEFUN([$1], [$2]), [m4_warning([Unknown $1 option '$2'])])[]dnl ]) # _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET]) # ------------------------------------------------------------ # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. m4_define([_LT_IF_OPTION], [m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])]) # _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET) # ------------------------------------------------------- # Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME # are set. m4_define([_LT_UNLESS_OPTIONS], [m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option), [m4_define([$0_found])])])[]dnl m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3 ])[]dnl ]) # _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST) # ---------------------------------------- # OPTION-LIST is a space-separated list of Libtool options associated # with MACRO-NAME. If any OPTION has a matching handler declared with # LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about # the unknown option and exit. m4_defun([_LT_SET_OPTIONS], [# Set options m4_foreach([_LT_Option], m4_split(m4_normalize([$2])), [_LT_SET_OPTION([$1], _LT_Option)]) m4_if([$1],[LT_INIT],[ dnl dnl Simply set some default values (i.e off) if boolean options were not dnl specified: _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no ]) _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no ]) dnl dnl If no reference was made to various pairs of opposing options, then dnl we run the default mode handler for the pair. For example, if neither dnl 'shared' nor 'disable-shared' was passed, we enable building of shared dnl archives by default: _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED]) _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC]) _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC]) _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install], [_LT_ENABLE_FAST_INSTALL]) _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4], [_LT_WITH_AIX_SONAME([aix])]) ]) ])# _LT_SET_OPTIONS # _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME) # ----------------------------------------- m4_define([_LT_MANGLE_DEFUN], [[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])]) # LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE) # ----------------------------------------------- m4_define([LT_OPTION_DEFINE], [m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl ])# LT_OPTION_DEFINE # dlopen # ------ LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes ]) AU_DEFUN([AC_LIBTOOL_DLOPEN], [_LT_SET_OPTION([LT_INIT], [dlopen]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the 'dlopen' option into LT_INIT's first parameter.]) ]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], []) # win32-dll # --------- # Declare package support for building win32 dll's. LT_OPTION_DEFINE([LT_INIT], [win32-dll], [enable_win32_dll=yes case $host in *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*) AC_CHECK_TOOL(AS, as, false) AC_CHECK_TOOL(DLLTOOL, dlltool, false) AC_CHECK_TOOL(OBJDUMP, objdump, false) ;; esac test -z "$AS" && AS=as _LT_DECL([], [AS], [1], [Assembler program])dnl test -z "$DLLTOOL" && DLLTOOL=dlltool _LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl test -z "$OBJDUMP" && OBJDUMP=objdump _LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl ])# win32-dll AU_DEFUN([AC_LIBTOOL_WIN32_DLL], [AC_REQUIRE([AC_CANONICAL_HOST])dnl _LT_SET_OPTION([LT_INIT], [win32-dll]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the 'win32-dll' option into LT_INIT's first parameter.]) ]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], []) # _LT_ENABLE_SHARED([DEFAULT]) # ---------------------------- # implement the --enable-shared flag, and supports the 'shared' and # 'disable-shared' LT_INIT options. # DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. m4_define([_LT_ENABLE_SHARED], [m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl AC_ARG_ENABLE([shared], [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@], [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])], [p=${PACKAGE-default} case $enableval in yes) enable_shared=yes ;; no) enable_shared=no ;; *) enable_shared=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_shared=yes fi done IFS=$lt_save_ifs ;; esac], [enable_shared=]_LT_ENABLE_SHARED_DEFAULT) _LT_DECL([build_libtool_libs], [enable_shared], [0], [Whether or not to build shared libraries]) ])# _LT_ENABLE_SHARED LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])]) LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])]) # Old names: AC_DEFUN([AC_ENABLE_SHARED], [_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared]) ]) AC_DEFUN([AC_DISABLE_SHARED], [_LT_SET_OPTION([LT_INIT], [disable-shared]) ]) AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)]) AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AM_ENABLE_SHARED], []) dnl AC_DEFUN([AM_DISABLE_SHARED], []) # _LT_ENABLE_STATIC([DEFAULT]) # ---------------------------- # implement the --enable-static flag, and support the 'static' and # 'disable-static' LT_INIT options. # DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. m4_define([_LT_ENABLE_STATIC], [m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl AC_ARG_ENABLE([static], [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@], [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])], [p=${PACKAGE-default} case $enableval in yes) enable_static=yes ;; no) enable_static=no ;; *) enable_static=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_static=yes fi done IFS=$lt_save_ifs ;; esac], [enable_static=]_LT_ENABLE_STATIC_DEFAULT) _LT_DECL([build_old_libs], [enable_static], [0], [Whether or not to build static libraries]) ])# _LT_ENABLE_STATIC LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])]) LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])]) # Old names: AC_DEFUN([AC_ENABLE_STATIC], [_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static]) ]) AC_DEFUN([AC_DISABLE_STATIC], [_LT_SET_OPTION([LT_INIT], [disable-static]) ]) AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)]) AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AM_ENABLE_STATIC], []) dnl AC_DEFUN([AM_DISABLE_STATIC], []) # _LT_ENABLE_FAST_INSTALL([DEFAULT]) # ---------------------------------- # implement the --enable-fast-install flag, and support the 'fast-install' # and 'disable-fast-install' LT_INIT options. # DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'. m4_define([_LT_ENABLE_FAST_INSTALL], [m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl AC_ARG_ENABLE([fast-install], [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@], [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])], [p=${PACKAGE-default} case $enableval in yes) enable_fast_install=yes ;; no) enable_fast_install=no ;; *) enable_fast_install=no # Look at the argument we got. We use all the common list separators. lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR, for pkg in $enableval; do IFS=$lt_save_ifs if test "X$pkg" = "X$p"; then enable_fast_install=yes fi done IFS=$lt_save_ifs ;; esac], [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT) _LT_DECL([fast_install], [enable_fast_install], [0], [Whether or not to optimize for fast installation])dnl ])# _LT_ENABLE_FAST_INSTALL LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])]) LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])]) # Old names: AU_DEFUN([AC_ENABLE_FAST_INSTALL], [_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the 'fast-install' option into LT_INIT's first parameter.]) ]) AU_DEFUN([AC_DISABLE_FAST_INSTALL], [_LT_SET_OPTION([LT_INIT], [disable-fast-install]) AC_DIAGNOSE([obsolete], [$0: Remove this warning and the call to _LT_SET_OPTION when you put the 'disable-fast-install' option into LT_INIT's first parameter.]) ]) dnl aclocal-1.4 backwards compatibility: dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], []) dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], []) # _LT_WITH_AIX_SONAME([DEFAULT]) # ---------------------------------- # implement the --with-aix-soname flag, and support the `aix-soname=aix' # and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT # is either `aix', `both' or `svr4'. If omitted, it defaults to `aix'. m4_define([_LT_WITH_AIX_SONAME], [m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl shared_archive_member_spec= case $host,$enable_shared in power*-*-aix[[5-9]]*,yes) AC_MSG_CHECKING([which variant of shared library versioning to provide]) AC_ARG_WITH([aix-soname], [AS_HELP_STRING([--with-aix-soname=aix|svr4|both], [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])], [case $withval in aix|svr4|both) ;; *) AC_MSG_ERROR([Unknown argument to --with-aix-soname]) ;; esac lt_cv_with_aix_soname=$with_aix_soname], [AC_CACHE_VAL([lt_cv_with_aix_soname], [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT) with_aix_soname=$lt_cv_with_aix_soname]) AC_MSG_RESULT([$with_aix_soname]) if test aix != "$with_aix_soname"; then # For the AIX way of multilib, we name the shared archive member # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o', # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File. # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag, # the AIX toolchain works better with OBJECT_MODE set (default 32). if test 64 = "${OBJECT_MODE-32}"; then shared_archive_member_spec=shr_64 else shared_archive_member_spec=shr fi fi ;; *) with_aix_soname=aix ;; esac _LT_DECL([], [shared_archive_member_spec], [0], [Shared archive member basename, for filename based shared library versioning on AIX])dnl ])# _LT_WITH_AIX_SONAME LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])]) LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])]) LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])]) # _LT_WITH_PIC([MODE]) # -------------------- # implement the --with-pic flag, and support the 'pic-only' and 'no-pic' # LT_INIT options. # MODE is either 'yes' or 'no'. 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Vaughan, 2004 # # This file is free software; the Free Software Foundation gives # unlimited permission to copy and/or distribute it, with or without # modifications, as long as this notice is preserved. # serial 6 ltsugar.m4 # This is to help aclocal find these macros, as it can't see m4_define. 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AC_DEFUN([gl_MALLOCA], [ dnl Use the autoconf tests for alloca(), but not the AC_SUBSTed variables dnl @ALLOCA@ and @LTALLOCA@. dnl gl_FUNC_ALLOCA dnl Already brought in by the module dependencies. AC_REQUIRE([gl_EEMALLOC]) ]) # manywarnings.m4 serial 19 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Simon Josefsson # gl_MANYWARN_COMPLEMENT(OUTVAR, LISTVAR, REMOVEVAR) # -------------------------------------------------- # Copy LISTVAR to OUTVAR except for the entries in REMOVEVAR. # Elements separated by whitespace. In set logic terms, the function # does OUTVAR = LISTVAR \ REMOVEVAR. 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AC_REQUIRE([AC_PROG_CC]) if test -n "$GCC"; then dnl Check if -W -Werror -Wno-missing-field-initializers is supported dnl with the current $CC $CFLAGS $CPPFLAGS. AC_CACHE_CHECK([whether -Wno-missing-field-initializers is supported], [gl_cv_cc_nomfi_supported], [gl_save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -W -Werror -Wno-missing-field-initializers" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[]], [[]])], [gl_cv_cc_nomfi_supported=yes], [gl_cv_cc_nomfi_supported=no]) CFLAGS="$gl_save_CFLAGS" ]) if test "$gl_cv_cc_nomfi_supported" = yes; then dnl Now check whether -Wno-missing-field-initializers is needed dnl for the { 0, } construct. AC_CACHE_CHECK([whether -Wno-missing-field-initializers is needed], [gl_cv_cc_nomfi_needed], [gl_save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -W -Werror" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[int f (void) { typedef struct { int a; int b; } s_t; s_t s1 = { 0, }; return s1.b; } ]], [[]])], [gl_cv_cc_nomfi_needed=no], [gl_cv_cc_nomfi_needed=yes]) CFLAGS="$gl_save_CFLAGS" ]) fi dnl Next, check if -Werror -Wuninitialized is useful with the dnl user's choice of $CFLAGS; some versions of gcc warn that it dnl has no effect if -O is not also used AC_CACHE_CHECK([whether -Wuninitialized is supported], [gl_cv_cc_uninitialized_supported], [gl_save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Werror -Wuninitialized" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[]], [[]])], [gl_cv_cc_uninitialized_supported=yes], [gl_cv_cc_uninitialized_supported=no]) CFLAGS="$gl_save_CFLAGS" ]) fi # List all gcc warning categories. # To compare this list to your installed GCC's, run this Bash command: # # comm -3 \ # <((sed -n 's/^ *\(-[^ 0-9][^ ]*\) .*/\1/p' manywarnings.m4; \ # awk '/^[^#]/ {print $1}' ../build-aux/gcc-warning.spec) | sort) \ # <(LC_ALL=C gcc --help=warnings | sed -n 's/^ \(-[^ ]*\) .*/\1/p' | sort) gl_manywarn_set= for gl_manywarn_item in -fno-common \ -W \ -Wabsolute-value \ -Waddress \ -Waddress-of-packed-member \ -Waggressive-loop-optimizations \ -Wall \ -Wanalyzer-double-fclose \ -Wanalyzer-double-free \ -Wanalyzer-exposure-through-output-file \ -Wanalyzer-file-leak \ -Wanalyzer-free-of-non-heap \ -Wanalyzer-malloc-leak \ -Wanalyzer-null-argument \ -Wanalyzer-null-dereference \ -Wanalyzer-possible-null-argument \ -Wanalyzer-possible-null-dereference \ -Wanalyzer-stale-setjmp-buffer \ -Wanalyzer-tainted-array-index \ -Wanalyzer-too-complex \ -Wanalyzer-unsafe-call-within-signal-handler \ -Wanalyzer-use-after-free \ -Wanalyzer-use-of-pointer-in-stale-stack-frame \ -Warith-conversion \ -Wattribute-warning \ -Wattributes \ -Wbad-function-cast \ -Wbool-compare \ -Wbool-operation \ -Wbuiltin-declaration-mismatch \ -Wbuiltin-macro-redefined \ -Wcannot-profile \ -Wcast-align \ -Wcast-align=strict \ -Wcast-function-type \ -Wchar-subscripts \ -Wclobbered \ -Wcomment \ -Wcomments \ -Wcoverage-mismatch \ -Wcpp \ -Wdangling-else \ -Wdate-time \ -Wdeprecated \ -Wdeprecated-declarations \ -Wdesignated-init \ -Wdisabled-optimization \ -Wdiscarded-array-qualifiers \ -Wdiscarded-qualifiers \ -Wdiv-by-zero \ -Wdouble-promotion \ -Wduplicated-branches \ -Wduplicated-cond \ -Wduplicate-decl-specifier \ -Wempty-body \ -Wendif-labels \ -Wenum-compare \ -Wenum-conversion \ -Wexpansion-to-defined \ -Wextra \ -Wformat-contains-nul \ -Wformat-diag \ -Wformat-extra-args \ -Wformat-nonliteral \ -Wformat-security \ -Wformat-signedness \ -Wformat-y2k \ -Wformat-zero-length \ -Wframe-address \ -Wfree-nonheap-object \ -Whsa \ -Wif-not-aligned \ -Wignored-attributes \ -Wignored-qualifiers \ -Wimplicit \ -Wimplicit-function-declaration \ -Wimplicit-int \ -Wincompatible-pointer-types \ -Winit-self \ -Winline \ -Wint-conversion \ -Wint-in-bool-context \ -Wint-to-pointer-cast \ -Winvalid-memory-model \ -Winvalid-pch \ -Wlogical-not-parentheses \ -Wlogical-op \ -Wmain \ -Wmaybe-uninitialized \ -Wmemset-elt-size \ -Wmemset-transposed-args \ -Wmisleading-indentation \ -Wmissing-attributes \ -Wmissing-braces \ -Wmissing-declarations \ -Wmissing-field-initializers \ -Wmissing-include-dirs \ -Wmissing-parameter-type \ -Wmissing-profile \ -Wmissing-prototypes \ -Wmultichar \ -Wmultistatement-macros \ -Wnarrowing \ -Wnested-externs \ -Wnonnull \ -Wnonnull-compare \ -Wnull-dereference \ -Wodr \ -Wold-style-declaration \ -Wold-style-definition \ -Wopenmp-simd \ -Woverflow \ -Woverlength-strings \ -Woverride-init \ -Wpacked \ -Wpacked-bitfield-compat \ -Wpacked-not-aligned \ -Wparentheses \ -Wpointer-arith \ -Wpointer-compare \ -Wpointer-sign \ -Wpointer-to-int-cast \ -Wpragmas \ -Wpsabi \ -Wrestrict \ -Wreturn-local-addr \ -Wreturn-type \ -Wscalar-storage-order \ -Wsequence-point \ -Wshadow \ -Wshift-count-negative \ -Wshift-count-overflow \ -Wshift-negative-value \ -Wsizeof-array-argument \ -Wsizeof-pointer-div \ -Wsizeof-pointer-memaccess \ -Wstack-protector \ -Wstrict-aliasing \ -Wstrict-overflow \ -Wstrict-prototypes \ -Wstring-compare \ -Wstringop-truncation \ -Wsuggest-attribute=cold \ -Wsuggest-attribute=const \ -Wsuggest-attribute=format \ -Wsuggest-attribute=malloc \ -Wsuggest-attribute=noreturn \ -Wsuggest-attribute=pure \ -Wsuggest-final-methods \ -Wsuggest-final-types \ -Wswitch \ -Wswitch-bool \ -Wswitch-outside-range \ -Wswitch-unreachable \ -Wsync-nand \ -Wsystem-headers \ -Wtautological-compare \ -Wtrampolines \ -Wtrigraphs \ -Wtype-limits \ -Wuninitialized \ -Wunknown-pragmas \ -Wunsafe-loop-optimizations \ -Wunused \ -Wunused-but-set-parameter \ -Wunused-but-set-variable \ -Wunused-function \ -Wunused-label \ -Wunused-local-typedefs \ -Wunused-macros \ -Wunused-parameter \ -Wunused-result \ -Wunused-value \ -Wunused-variable \ -Wvarargs \ -Wvariadic-macros \ -Wvector-operation-performance \ -Wvla \ -Wvolatile-register-var \ -Wwrite-strings \ -Wzero-length-bounds \ \ ; do gl_manywarn_set="$gl_manywarn_set $gl_manywarn_item" done # gcc --help=warnings outputs an unusual form for these options; list # them here so that the above 'comm' command doesn't report a false match. # Would prefer "min (PTRDIFF_MAX, SIZE_MAX)", but it must be a literal. # Also, AC_COMPUTE_INT requires it to fit in a long; it is 2**63 on # the only platforms where it does not fit in a long, so make that # a special case. AC_MSG_CHECKING([max safe object size]) AC_COMPUTE_INT([gl_alloc_max], [LONG_MAX < (PTRDIFF_MAX < (size_t) -1 ? PTRDIFF_MAX : (size_t) -1) ? -1 : PTRDIFF_MAX < (size_t) -1 ? (long) PTRDIFF_MAX : (long) (size_t) -1], [[#include #include #include ]], [gl_alloc_max=2147483647]) case $gl_alloc_max in -1) gl_alloc_max=9223372036854775807;; esac AC_MSG_RESULT([$gl_alloc_max]) gl_manywarn_set="$gl_manywarn_set -Walloc-size-larger-than=$gl_alloc_max" gl_manywarn_set="$gl_manywarn_set -Warray-bounds=2" gl_manywarn_set="$gl_manywarn_set -Wattribute-alias=2" gl_manywarn_set="$gl_manywarn_set -Wformat-overflow=2" gl_manywarn_set="$gl_manywarn_set -Wformat-truncation=2" gl_manywarn_set="$gl_manywarn_set -Wimplicit-fallthrough=5" gl_manywarn_set="$gl_manywarn_set -Wnormalized=nfc" gl_manywarn_set="$gl_manywarn_set -Wshift-overflow=2" gl_manywarn_set="$gl_manywarn_set -Wstringop-overflow=2" gl_manywarn_set="$gl_manywarn_set -Wunused-const-variable=2" gl_manywarn_set="$gl_manywarn_set -Wvla-larger-than=4031" # These are needed for older GCC versions. if test -n "$GCC"; then case `($CC --version) 2>/dev/null` in 'gcc (GCC) '[[0-3]].* | \ 'gcc (GCC) '4.[[0-7]].*) gl_manywarn_set="$gl_manywarn_set -fdiagnostics-show-option" gl_manywarn_set="$gl_manywarn_set -funit-at-a-time" ;; esac fi # Disable specific options as needed. if test "$gl_cv_cc_nomfi_needed" = yes; then gl_manywarn_set="$gl_manywarn_set -Wno-missing-field-initializers" fi if test "$gl_cv_cc_uninitialized_supported" = no; then gl_manywarn_set="$gl_manywarn_set -Wno-uninitialized" fi $1=$gl_manywarn_set AC_LANG_POP([C]) ]) # Specialization for _AC_LANG = C++. # Use of m4_defun rather than AC_DEFUN works around a bug in autoconf < 2.63b. m4_defun([gl_MANYWARN_ALL_GCC(C++)], [ gl_MANYWARN_ALL_GCC_CXX_IMPL([$1]) ]) # memchr.m4 serial 15 dnl Copyright (C) 2002-2004, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN_ONCE([gl_FUNC_MEMCHR], [ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl Check for prerequisites for memory fence checks. gl_FUNC_MMAP_ANON AC_CHECK_HEADERS_ONCE([sys/mman.h]) AC_CHECK_FUNCS_ONCE([mprotect]) AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) m4_ifdef([gl_FUNC_MEMCHR_OBSOLETE], [ dnl These days, we assume memchr is present. But if support for old dnl platforms is desired: AC_CHECK_FUNCS_ONCE([memchr]) if test $ac_cv_func_memchr = no; then HAVE_MEMCHR=0 fi ]) if test $HAVE_MEMCHR = 1; then # Detect platform-specific bugs in some versions of glibc: # memchr should not dereference anything with length 0 # https://bugzilla.redhat.com/show_bug.cgi?id=499689 # memchr should not dereference overestimated length after a match # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521737 # https://sourceware.org/bugzilla/show_bug.cgi?id=10162 # memchr should cast the second argument to 'unsigned char'. # This bug exists in Android 4.3. # Assume that memchr works on platforms that lack mprotect. AC_CACHE_CHECK([whether memchr works], [gl_cv_func_memchr_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #if HAVE_SYS_MMAN_H # include # include # include # include # ifndef MAP_FILE # define MAP_FILE 0 # endif #endif ]], [[ int result = 0; char *fence = NULL; #if HAVE_SYS_MMAN_H && HAVE_MPROTECT # if HAVE_MAP_ANONYMOUS const int flags = MAP_ANONYMOUS | MAP_PRIVATE; const int fd = -1; # else /* !HAVE_MAP_ANONYMOUS */ const int flags = MAP_FILE | MAP_PRIVATE; int fd = open ("/dev/zero", O_RDONLY, 0666); if (fd >= 0) # endif { int pagesize = getpagesize (); char *two_pages = (char *) mmap (NULL, 2 * pagesize, PROT_READ | PROT_WRITE, flags, fd, 0); if (two_pages != (char *)(-1) && mprotect (two_pages + pagesize, pagesize, PROT_NONE) == 0) fence = two_pages + pagesize; } #endif if (fence) { if (memchr (fence, 0, 0)) result |= 1; strcpy (fence - 9, "12345678"); if (memchr (fence - 9, 0, 79) != fence - 1) result |= 2; if (memchr (fence - 1, 0, 3) != fence - 1) result |= 4; } /* Test against bug on Android 4.3. */ { char input[3]; input[0] = 'a'; input[1] = 'b'; input[2] = 'c'; if (memchr (input, 0x789abc00 | 'b', 3) != input + 1) result |= 8; } return result; ]])], [gl_cv_func_memchr_works=yes], [gl_cv_func_memchr_works=no], [case "$host_os" in # Guess no on Android. linux*-android*) gl_cv_func_memchr_works="guessing no" ;; # Guess yes on native Windows. mingw*) gl_cv_func_memchr_works="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_memchr_works="$gl_cross_guess_normal" ;; esac ]) ]) case "$gl_cv_func_memchr_works" in *yes) ;; *) REPLACE_MEMCHR=1 ;; esac fi ]) # Prerequisites of lib/memchr.c. AC_DEFUN([gl_PREREQ_MEMCHR], [ AC_CHECK_HEADERS([bp-sym.h]) ]) # memmem.m4 serial 27 dnl Copyright (C) 2002-2004, 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Check that memmem is present and functional. AC_DEFUN([gl_FUNC_MEMMEM_SIMPLE], [ dnl Persuade glibc to declare memmem(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_CHECK_FUNCS([memmem]) if test $ac_cv_func_memmem = yes; then HAVE_MEMMEM=1 else HAVE_MEMMEM=0 fi AC_CHECK_DECLS_ONCE([memmem]) if test $ac_cv_have_decl_memmem = no; then HAVE_DECL_MEMMEM=0 else dnl Detect https://sourceware.org/bugzilla/show_bug.cgi?id=12092. dnl Also check that we handle empty needles correctly. AC_CACHE_CHECK([whether memmem works], [gl_cv_func_memmem_works_always], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include /* for memmem */ #define P "_EF_BF_BD" #define HAYSTACK "F_BD_CE_BD" P P P P "_C3_88_20" P P P "_C3_A7_20" P #define NEEDLE P P P P P ]], [[ int result = 0; if (memmem (HAYSTACK, strlen (HAYSTACK), NEEDLE, strlen (NEEDLE))) result |= 1; /* Check for empty needle behavior. */ { const char *haystack = "AAA"; if (memmem (haystack, 3, (const char *) 1, 0) != haystack) result |= 2; } return result; ]])], [gl_cv_func_memmem_works_always=yes], [gl_cv_func_memmem_works_always=no], [dnl glibc 2.9..2.12 and cygwin 1.7.7 have issue #12092 above. dnl Also empty needles work on glibc >= 2.1 and cygwin >= 1.7.0. dnl uClibc is not affected, since it uses different source code. dnl Assume that it works on all other platforms (even if not linear). AC_EGREP_CPP([Lucky user], [ #ifdef __GNU_LIBRARY__ #include #if ((__GLIBC__ == 2 && ((__GLIBC_MINOR > 0 && __GLIBC_MINOR__ < 9) \ || __GLIBC_MINOR__ > 12)) \ || (__GLIBC__ > 2)) \ || defined __UCLIBC__ Lucky user #endif #elif defined __CYGWIN__ #include #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 7) Lucky user #endif #else Lucky user #endif ], [gl_cv_func_memmem_works_always="guessing yes"], [gl_cv_func_memmem_works_always="$gl_cross_guess_normal"]) ]) ]) case "$gl_cv_func_memmem_works_always" in *yes) ;; *) REPLACE_MEMMEM=1 ;; esac fi gl_PREREQ_MEMMEM ]) # gl_FUNC_MEMMEM_SIMPLE dnl Additionally, check that memmem has linear performance characteristics AC_DEFUN([gl_FUNC_MEMMEM], [ AC_REQUIRE([gl_FUNC_MEMMEM_SIMPLE]) if test $HAVE_DECL_MEMMEM = 1 && test $REPLACE_MEMMEM = 0; then AC_CACHE_CHECK([whether memmem works in linear time], [gl_cv_func_memmem_works_fast], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include /* for signal */ #include /* for memmem */ #include /* for malloc */ #include /* for alarm */ static void quit (int sig) { _exit (sig + 128); } ]], [[ int result = 0; size_t m = 1000000; char *haystack = (char *) malloc (2 * m + 1); char *needle = (char *) malloc (m + 1); /* Failure to compile this test due to missing alarm is okay, since all such platforms (mingw) also lack memmem. */ signal (SIGALRM, quit); alarm (5); /* Check for quadratic performance. */ if (haystack && needle) { memset (haystack, 'A', 2 * m); haystack[2 * m] = 'B'; memset (needle, 'A', m); needle[m] = 'B'; if (!memmem (haystack, 2 * m + 1, needle, m + 1)) result |= 1; } /* Free allocated memory, in case some sanitizer is watching. */ free (haystack); free (needle); return result; ]])], [gl_cv_func_memmem_works_fast=yes], [gl_cv_func_memmem_works_fast=no], [dnl Only glibc >= 2.9 and cygwin > 1.7.0 are known to have a dnl memmem that works in linear time. AC_EGREP_CPP([Lucky user], [ #include #ifdef __GNU_LIBRARY__ #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 9) || (__GLIBC__ > 2)) \ && !defined __UCLIBC__ Lucky user #endif #endif #ifdef __CYGWIN__ #include #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 0) Lucky user #endif #endif ], [gl_cv_func_memmem_works_fast="guessing yes"], [gl_cv_func_memmem_works_fast="$gl_cross_guess_normal"]) ]) ]) case "$gl_cv_func_memmem_works_fast" in *yes) ;; *) REPLACE_MEMMEM=1 ;; esac fi ]) # gl_FUNC_MEMMEM # Prerequisites of lib/memmem.c. AC_DEFUN([gl_PREREQ_MEMMEM], [:]) # minmax.m4 serial 4 dnl Copyright (C) 2005, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_PREREQ([2.53]) AC_DEFUN([gl_MINMAX], [ AC_REQUIRE([gl_PREREQ_MINMAX]) ]) # Prerequisites of lib/minmax.h. AC_DEFUN([gl_PREREQ_MINMAX], [ gl_MINMAX_IN_HEADER([limits.h]) gl_MINMAX_IN_HEADER([sys/param.h]) ]) dnl gl_MINMAX_IN_HEADER(HEADER) dnl The parameter has to be a literal header name; it cannot be macro, dnl nor a shell variable. (Because autoheader collects only AC_DEFINE dnl invocations with a literal macro name.) AC_DEFUN([gl_MINMAX_IN_HEADER], [ m4_pushdef([header], AS_TR_SH([$1])) m4_pushdef([HEADER], AS_TR_CPP([$1])) AC_CACHE_CHECK([whether <$1> defines MIN and MAX], [gl_cv_minmax_in_]header, [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include <$1> int x = MIN (42, 17);]], [[]])], [gl_cv_minmax_in_]header[=yes], [gl_cv_minmax_in_]header[=no])]) if test $gl_cv_minmax_in_[]header = yes; then AC_DEFINE([HAVE_MINMAX_IN_]HEADER, 1, [Define to 1 if <$1> defines the MIN and MAX macros.]) fi m4_popdef([HEADER]) m4_popdef([header]) ]) # mmap-anon.m4 serial 10 dnl Copyright (C) 2005, 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Detect how mmap can be used to create anonymous (not file-backed) memory # mappings. # - On Linux, AIX, OSF/1, Solaris, Cygwin, Interix, Haiku, both MAP_ANONYMOUS # and MAP_ANON exist and have the same value. # - On HP-UX, only MAP_ANONYMOUS exists. # - On Mac OS X, FreeBSD, NetBSD, OpenBSD, only MAP_ANON exists. # - On IRIX, neither exists, and a file descriptor opened to /dev/zero must be # used. AC_DEFUN([gl_FUNC_MMAP_ANON], [ dnl Persuade glibc to define MAP_ANONYMOUS. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) # Check for mmap(). Don't use AC_FUNC_MMAP, because it checks too much: it # fails on HP-UX 11, because MAP_FIXED mappings do not work. But this is # irrelevant for anonymous mappings. AC_CHECK_FUNC([mmap], [gl_have_mmap=yes], [gl_have_mmap=no]) # Try to allow MAP_ANONYMOUS. gl_have_mmap_anonymous=no if test $gl_have_mmap = yes; then AC_MSG_CHECKING([for MAP_ANONYMOUS]) AC_EGREP_CPP([I cannot identify this map], [ #include #ifdef MAP_ANONYMOUS I cannot identify this map #endif ], [gl_have_mmap_anonymous=yes]) if test $gl_have_mmap_anonymous != yes; then AC_EGREP_CPP([I cannot identify this map], [ #include #ifdef MAP_ANON I cannot identify this map #endif ], [AC_DEFINE([MAP_ANONYMOUS], [MAP_ANON], [Define to a substitute value for mmap()'s MAP_ANONYMOUS flag.]) gl_have_mmap_anonymous=yes]) fi AC_MSG_RESULT([$gl_have_mmap_anonymous]) if test $gl_have_mmap_anonymous = yes; then AC_DEFINE([HAVE_MAP_ANONYMOUS], [1], [Define to 1 if mmap()'s MAP_ANONYMOUS flag is available after including config.h and .]) fi fi ]) # mode_t.m4 serial 2 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # For using mode_t, it's sufficient to use AC_TYPE_MODE_T and # include . # Define PROMOTED_MODE_T to the type that is the result of "default argument # promotion" (ISO C 6.5.2.2.(6)) of the type mode_t. AC_DEFUN([gl_PROMOTED_TYPE_MODE_T], [ AC_REQUIRE([AC_TYPE_MODE_T]) AC_CACHE_CHECK([for promoted mode_t type], [gl_cv_promoted_mode_t], [ dnl Assume mode_t promotes to 'int' if and only if it is smaller than 'int', dnl and to itself otherwise. This assumption is not guaranteed by the ISO C dnl standard, but we don't know of any real-world counterexamples. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]], [[typedef int array[2 * (sizeof (mode_t) < sizeof (int)) - 1];]])], [gl_cv_promoted_mode_t='int'], [gl_cv_promoted_mode_t='mode_t']) ]) AC_DEFINE_UNQUOTED([PROMOTED_MODE_T], [$gl_cv_promoted_mode_t], [Define to the type that is the result of default argument promotions of type mode_t.]) ]) # msvc-inval.m4 serial 1 dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_MSVC_INVAL], [ AC_CHECK_FUNCS_ONCE([_set_invalid_parameter_handler]) if test $ac_cv_func__set_invalid_parameter_handler = yes; then HAVE_MSVC_INVALID_PARAMETER_HANDLER=1 AC_DEFINE([HAVE_MSVC_INVALID_PARAMETER_HANDLER], [1], [Define to 1 on MSVC platforms that have the "invalid parameter handler" concept.]) else HAVE_MSVC_INVALID_PARAMETER_HANDLER=0 fi AC_SUBST([HAVE_MSVC_INVALID_PARAMETER_HANDLER]) ]) # msvc-nothrow.m4 serial 1 dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_MSVC_NOTHROW], [ AC_REQUIRE([gl_MSVC_INVAL]) ]) # multiarch.m4 serial 7 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Determine whether the compiler is or may be producing universal binaries. # # On Mac OS X 10.5 and later systems, the user can create libraries and # executables that work on multiple system types--known as "fat" or # "universal" binaries--by specifying multiple '-arch' options to the # compiler but only a single '-arch' option to the preprocessor. Like # this: # # ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ # CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ # CPP="gcc -E" CXXCPP="g++ -E" # # Detect this situation and set APPLE_UNIVERSAL_BUILD accordingly. AC_DEFUN_ONCE([gl_MULTIARCH], [ dnl Code similar to autoconf-2.63 AC_C_BIGENDIAN. gl_cv_c_multiarch=no AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#ifndef __APPLE_CC__ not a universal capable compiler #endif typedef int dummy; ]])], [ dnl Check for potential -arch flags. It is not universal unless dnl there are at least two -arch flags with different values. arch= prev= for word in ${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}; do if test -n "$prev"; then case $word in i?86 | x86_64 | ppc | ppc64) if test -z "$arch" || test "$arch" = "$word"; then arch="$word" else gl_cv_c_multiarch=yes fi ;; esac prev= else if test "x$word" = "x-arch"; then prev=arch fi fi done ]) if test $gl_cv_c_multiarch = yes; then APPLE_UNIVERSAL_BUILD=1 else APPLE_UNIVERSAL_BUILD=0 fi AC_SUBST([APPLE_UNIVERSAL_BUILD]) ]) # serial 39 dnl From Jim Meyering. dnl Check for the nanosleep function. dnl If not found, use the supplied replacement. dnl # Copyright (C) 1999-2001, 2003-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_NANOSLEEP], [ AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl Persuade glibc and Solaris to declare nanosleep. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_HEADERS_ONCE([sys/time.h]) AC_REQUIRE([gl_FUNC_SELECT]) AC_CHECK_DECLS_ONCE([alarm]) nanosleep_save_libs=$LIBS # Solaris 2.5.1 needs -lposix4 to get the nanosleep function. # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4. LIB_NANOSLEEP= AC_SUBST([LIB_NANOSLEEP]) AC_SEARCH_LIBS([nanosleep], [rt posix4], [test "$ac_cv_search_nanosleep" = "none required" || LIB_NANOSLEEP=$ac_cv_search_nanosleep]) if test "x$ac_cv_search_nanosleep" != xno; then dnl The system has a nanosleep function. AC_REQUIRE([gl_MULTIARCH]) if test $APPLE_UNIVERSAL_BUILD = 1; then # A universal build on Apple Mac OS X platforms. # The test result would be 'no (mishandles large arguments)' in 64-bit # mode but 'yes' in 32-bit mode. But we need a configuration result that # is valid in both modes. gl_cv_func_nanosleep='no (mishandles large arguments)' fi AC_CACHE_CHECK([for working nanosleep], [gl_cv_func_nanosleep], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include #if HAVE_SYS_TIME_H #include #endif #include #include #define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) #define TYPE_MAXIMUM(t) \ ((t) (! TYPE_SIGNED (t) \ ? (t) -1 \ : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1))) #if HAVE_DECL_ALARM static void check_for_SIGALRM (int sig) { if (sig != SIGALRM) _exit (1); } #endif int main () { static struct timespec ts_sleep; static struct timespec ts_remaining; /* Test for major problems first. */ if (! nanosleep) return 2; ts_sleep.tv_sec = 0; ts_sleep.tv_nsec = 1; #if HAVE_DECL_ALARM { static struct sigaction act; act.sa_handler = check_for_SIGALRM; sigemptyset (&act.sa_mask); sigaction (SIGALRM, &act, NULL); alarm (1); if (nanosleep (&ts_sleep, NULL) != 0) return 3; /* Test for a minor problem: the handling of large arguments. */ ts_sleep.tv_sec = TYPE_MAXIMUM (time_t); ts_sleep.tv_nsec = 999999999; alarm (1); if (nanosleep (&ts_sleep, &ts_remaining) != -1) return 4; if (errno != EINTR) return 5; if (ts_remaining.tv_sec <= TYPE_MAXIMUM (time_t) - 10) return 6; } #else /* A simpler test for native Windows. */ if (nanosleep (&ts_sleep, &ts_remaining) < 0) return 3; #endif return 0; }]])], [gl_cv_func_nanosleep=yes], [case $? in dnl ( 4|5|6) gl_cv_func_nanosleep='no (mishandles large arguments)';; dnl ( *) gl_cv_func_nanosleep=no;; esac], [case "$host_os" in dnl (( linux*) # Guess it halfway works when the kernel is Linux. gl_cv_func_nanosleep='guessing no (mishandles large arguments)' ;; mingw*) # Guess no on native Windows. gl_cv_func_nanosleep='guessing no' ;; *) # If we don't know, obey --enable-cross-guesses. gl_cv_func_nanosleep="$gl_cross_guess_normal" ;; esac ]) ]) case "$gl_cv_func_nanosleep" in *yes) REPLACE_NANOSLEEP=0 ;; *) REPLACE_NANOSLEEP=1 case "$gl_cv_func_nanosleep" in *"mishandles large arguments"*) AC_DEFINE([HAVE_BUG_BIG_NANOSLEEP], [1], [Define to 1 if nanosleep mishandles large arguments.]) ;; *) # The replacement uses select(). Add $LIBSOCKET to $LIB_NANOSLEEP. for ac_lib in $LIBSOCKET; do case " $LIB_NANOSLEEP " in *" $ac_lib "*) ;; *) LIB_NANOSLEEP="$LIB_NANOSLEEP $ac_lib";; esac done ;; esac ;; esac else HAVE_NANOSLEEP=0 fi LIBS=$nanosleep_save_libs ]) # Prerequisites of lib/nanosleep.c. AC_DEFUN([gl_PREREQ_NANOSLEEP], [ AC_CHECK_HEADERS_ONCE([sys/select.h]) gl_PREREQ_SIG_HANDLER_H ]) # netdb_h.m4 serial 12 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_HEADER_NETDB], [ AC_REQUIRE([gl_NETDB_H_DEFAULTS]) gl_CHECK_NEXT_HEADERS([netdb.h]) if test $ac_cv_header_netdb_h = yes; then HAVE_NETDB_H=1 else HAVE_NETDB_H=0 fi AC_SUBST([HAVE_NETDB_H]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include ]], [getaddrinfo freeaddrinfo gai_strerror getnameinfo]) ]) AC_DEFUN([gl_NETDB_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_NETDB_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_NETDB_H_DEFAULTS], [ GNULIB_GETADDRINFO=0; AC_SUBST([GNULIB_GETADDRINFO]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_STRUCT_ADDRINFO=1; AC_SUBST([HAVE_STRUCT_ADDRINFO]) HAVE_DECL_FREEADDRINFO=1; AC_SUBST([HAVE_DECL_FREEADDRINFO]) HAVE_DECL_GAI_STRERROR=1; AC_SUBST([HAVE_DECL_GAI_STRERROR]) HAVE_DECL_GETADDRINFO=1; AC_SUBST([HAVE_DECL_GETADDRINFO]) HAVE_DECL_GETNAMEINFO=1; AC_SUBST([HAVE_DECL_GETNAMEINFO]) REPLACE_GAI_STRERROR=0; AC_SUBST([REPLACE_GAI_STRERROR]) REPLACE_GETADDRINFO=0; AC_SUBST([REPLACE_GETADDRINFO]) ]) # netinet_in_h.m4 serial 5 dnl Copyright (C) 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_HEADER_NETINET_IN], [ AC_CACHE_CHECK([whether is self-contained], [gl_cv_header_netinet_in_h_selfcontained], [ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]], [[]])], [gl_cv_header_netinet_in_h_selfcontained=yes], [gl_cv_header_netinet_in_h_selfcontained=no]) ]) if test $gl_cv_header_netinet_in_h_selfcontained = yes; then NETINET_IN_H='' else NETINET_IN_H='netinet/in.h' AC_CHECK_HEADERS([netinet/in.h]) gl_CHECK_NEXT_HEADERS([netinet/in.h]) if test $ac_cv_header_netinet_in_h = yes; then HAVE_NETINET_IN_H=1 else HAVE_NETINET_IN_H=0 fi AC_SUBST([HAVE_NETINET_IN_H]) fi AC_SUBST([NETINET_IN_H]) AM_CONDITIONAL([GL_GENERATE_NETINET_IN_H], [test -n "$NETINET_IN_H"]) ]) # off_t.m4 serial 1 dnl Copyright (C) 2012-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Check whether to override the 'off_t' type. dnl Set WINDOWS_64_BIT_OFF_T. AC_DEFUN([gl_TYPE_OFF_T], [ m4_ifdef([gl_LARGEFILE], [ AC_REQUIRE([gl_LARGEFILE]) ], [ WINDOWS_64_BIT_OFF_T=0 ]) AC_SUBST([WINDOWS_64_BIT_OFF_T]) ]) # Test whether O_CLOEXEC is defined. dnl Copyright 2017-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_PREPROC_O_CLOEXEC], [ AC_CACHE_CHECK([for O_CLOEXEC], [gl_cv_macro_O_CLOEXEC], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#include #ifndef O_CLOEXEC choke me; #endif ]], [[return O_CLOEXEC;]])], [gl_cv_macro_O_CLOEXEC=yes], [gl_cv_macro_O_CLOEXEC=no])]) ]) # open-slash.m4 serial 1 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Tests whether open() and creat() recognize a trailing slash. dnl Sets gl_cv_func_open_slash. AC_DEFUN([gl_OPEN_TRAILING_SLASH_BUG], [ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl open("foo/") should not create a file when the file name has a dnl trailing slash. FreeBSD only has the problem on symlinks. AC_CHECK_FUNCS_ONCE([lstat]) AC_CACHE_CHECK([whether open recognizes a trailing slash], [gl_cv_func_open_slash], [# Assume that if we have lstat, we can also check symlinks. if test $ac_cv_func_lstat = yes; then touch conftest.tmp ln -s conftest.tmp conftest.lnk fi AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #if HAVE_UNISTD_H # include #endif int main () { int result = 0; #if HAVE_LSTAT if (open ("conftest.lnk/", O_RDONLY) != -1) result |= 1; #endif if (open ("conftest.sl/", O_CREAT, 0600) >= 0) result |= 2; return result; }]])], [gl_cv_func_open_slash=yes], [gl_cv_func_open_slash=no], [ changequote(,)dnl case "$host_os" in freebsd* | aix* | hpux* | solaris2.[0-9] | solaris2.[0-9].*) gl_cv_func_open_slash="guessing no" ;; *) gl_cv_func_open_slash="guessing yes" ;; esac changequote([,])dnl ]) rm -f conftest.sl conftest.tmp conftest.lnk ]) case "$gl_cv_func_open_slash" in *no) AC_DEFINE([OPEN_TRAILING_SLASH_BUG], [1], [Define to 1 if open() fails to recognize a trailing slash.]) ;; esac ]) # open.m4 serial 15 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_OPEN], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_PREPROC_O_CLOEXEC]) case "$host_os" in mingw* | pw*) REPLACE_OPEN=1 ;; *) dnl open("foo/") should not create a file when the file name has a dnl trailing slash. FreeBSD only has the problem on symlinks. AC_CHECK_FUNCS_ONCE([lstat]) if test "$gl_cv_macro_O_CLOEXEC" != yes; then REPLACE_OPEN=1 fi gl_OPEN_TRAILING_SLASH_BUG case "$gl_cv_func_open_slash" in *no) REPLACE_OPEN=1 ;; esac ;; esac dnl Replace open() for supporting the gnulib-defined fchdir() function, dnl to keep fchdir's bookkeeping up-to-date. m4_ifdef([gl_FUNC_FCHDIR], [ if test $REPLACE_OPEN = 0; then gl_TEST_FCHDIR if test $HAVE_FCHDIR = 0; then REPLACE_OPEN=1 fi fi ]) dnl Replace open() for supporting the gnulib-defined O_NONBLOCK flag. m4_ifdef([gl_NONBLOCKING_IO], [ if test $REPLACE_OPEN = 0; then gl_NONBLOCKING_IO if test $gl_cv_have_open_O_NONBLOCK != yes; then REPLACE_OPEN=1 fi fi ]) ]) # Prerequisites of lib/open.c. AC_DEFUN([gl_PREREQ_OPEN], [ AC_REQUIRE([gl_PROMOTED_TYPE_MODE_T]) : ]) # pathmax.m4 serial 11 dnl Copyright (C) 2002-2003, 2005-2006, 2009-2020 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_PATHMAX], [ dnl Prerequisites of lib/pathmax.h. AC_CHECK_HEADERS_ONCE([sys/param.h]) ]) # Expands to a piece of C program that defines PATH_MAX in the same way as # "pathmax.h" will do. AC_DEFUN([gl_PATHMAX_SNIPPET], [[ /* Arrange to define PATH_MAX, like "pathmax.h" does. */ #if HAVE_UNISTD_H # include #endif #include #if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN # include #endif #if !defined PATH_MAX && defined MAXPATHLEN # define PATH_MAX MAXPATHLEN #endif #ifdef __hpux # undef PATH_MAX # define PATH_MAX 1024 #endif #if defined _WIN32 && ! defined __CYGWIN__ # undef PATH_MAX # define PATH_MAX 260 #endif ]]) # Prerequisites of gl_PATHMAX_SNIPPET. AC_DEFUN([gl_PATHMAX_SNIPPET_PREREQ], [ AC_CHECK_HEADERS_ONCE([unistd.h sys/param.h]) ]) # perror.m4 serial 9 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_PERROR], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([gl_HEADER_ERRNO_H]) AC_REQUIRE([gl_FUNC_STRERROR_R]) AC_REQUIRE([gl_FUNC_STRERROR_0]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl We intentionally do not check for the broader REPLACE_STRERROR_R, dnl since on glibc systems, strerror_r is replaced only for signature dnl issues, and perror is just fine. Rather, we only want to dnl replace perror if strerror_r was replaced for a content fix. if test "$ERRNO_H:$REPLACE_STRERROR_0" != :0; then dnl The system's perror() cannot know about the new errno values we add dnl to , or any fix for strerror(0). Replace it. REPLACE_PERROR=1 fi case ${gl_cv_func_strerror_r_works-unset} in unset|*yes) AC_CACHE_CHECK([whether perror matches strerror], [gl_cv_func_perror_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include #include #include ]], [[char *str = strerror (-1); if (!getenv("CONFTEST_OUTPUT")) return 0; if (!str) str = ""; puts (str); errno = -1; perror (""); return 0; ]])], [if CONFTEST_OUTPUT=1 ./conftest$EXEEXT >conftest.txt1 2>conftest.txt2 \ && cmp conftest.txt1 conftest.txt2 >/dev/null; then gl_cv_func_perror_works=yes else gl_cv_func_perror_works=no fi rm -rf conftest.txt1 conftest.txt2], [gl_cv_func_perror_works=no], [case "$host_os" in # Guess yes on musl systems. *-musl*) gl_cv_func_perror_works="guessing yes" ;; # Guess yes on native Windows. mingw*) gl_cv_func_perror_works="guessing yes" ;; # Otherwise obey --enable-cross-guesses. *) gl_cv_func_perror_works="$gl_cross_guess_normal" ;; esac ]) ]) case "$gl_cv_func_perror_works" in *yes) ;; *) REPLACE_PERROR=1 ;; esac ;; *) dnl The system's perror() probably inherits the bugs in the dnl system's strerror_r(). Replace it. REPLACE_PERROR=1 ;; esac ]) # pipe.m4 serial 2 dnl Copyright (C) 2010-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_PIPE], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([pipe]) if test $ac_cv_func_pipe != yes; then HAVE_PIPE=0 fi ]) # printf.m4 serial 64 dnl Copyright (C) 2003, 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Test whether the *printf family of functions supports the 'j', 'z', 't', dnl 'L' size specifiers. (ISO C99, POSIX:2001) dnl Result is gl_cv_func_printf_sizes_c99. AC_DEFUN([gl_PRINTF_SIZES_C99], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gl_AC_HEADER_STDINT_H]) AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports size specifiers as in C99], [gl_cv_func_printf_sizes_c99], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include #include #if HAVE_STDINT_H_WITH_UINTMAX # include #endif #if HAVE_INTTYPES_H_WITH_UINTMAX # include #endif static char buf[100]; int main () { int result = 0; #if HAVE_STDINT_H_WITH_UINTMAX || HAVE_INTTYPES_H_WITH_UINTMAX buf[0] = '\0'; if (sprintf (buf, "%ju %d", (uintmax_t) 12345671, 33, 44, 55) < 0 || strcmp (buf, "12345671 33") != 0) result |= 1; #else result |= 1; #endif buf[0] = '\0'; if (sprintf (buf, "%zu %d", (size_t) 12345672, 33, 44, 55) < 0 || strcmp (buf, "12345672 33") != 0) result |= 2; buf[0] = '\0'; if (sprintf (buf, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55) < 0 || strcmp (buf, "12345673 33") != 0) result |= 4; buf[0] = '\0'; if (sprintf (buf, "%Lg %d", (long double) 1.5, 33, 44, 55) < 0 || strcmp (buf, "1.5 33") != 0) result |= 8; return result; }]])], [gl_cv_func_printf_sizes_c99=yes], [gl_cv_func_printf_sizes_c99=no], [ case "$host_os" in changequote(,)dnl # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_printf_sizes_c99="guessing yes";; # Guess yes on musl systems. *-musl*) gl_cv_func_printf_sizes_c99="guessing yes";; # Guess yes on FreeBSD >= 5. freebsd[1-4].*) gl_cv_func_printf_sizes_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_sizes_c99="guessing yes";; # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_printf_sizes_c99="guessing no";; darwin*) gl_cv_func_printf_sizes_c99="guessing yes";; # Guess yes on OpenBSD >= 3.9. openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) gl_cv_func_printf_sizes_c99="guessing no";; openbsd*) gl_cv_func_printf_sizes_c99="guessing yes";; # Guess yes on Solaris >= 2.10. solaris2.[1-9][0-9]*) gl_cv_func_printf_sizes_c99="guessing yes";; solaris*) gl_cv_func_printf_sizes_c99="guessing no";; # Guess yes on NetBSD >= 3. netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) gl_cv_func_printf_sizes_c99="guessing no";; netbsd*) gl_cv_func_printf_sizes_c99="guessing yes";; # Guess yes on Android. linux*-android*) gl_cv_func_printf_sizes_c99="guessing yes";; changequote([,])dnl # Guess yes on MSVC, no on mingw. mingw*) AC_EGREP_CPP([Known], [ #ifdef _MSC_VER Known #endif ], [gl_cv_func_printf_sizes_c99="guessing yes"], [gl_cv_func_printf_sizes_c99="guessing no"]) ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_printf_sizes_c99="$gl_cross_guess_normal";; esac ]) ]) ]) dnl Test whether the *printf family of functions supports 'long double' dnl arguments together with the 'L' size specifier. (ISO C99, POSIX:2001) dnl Result is gl_cv_func_printf_long_double. AC_DEFUN([gl_PRINTF_LONG_DOUBLE], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports 'long double' arguments], [gl_cv_func_printf_long_double], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static char buf[10000]; int main () { int result = 0; buf[0] = '\0'; if (sprintf (buf, "%Lf %d", 1.75L, 33, 44, 55) < 0 || strcmp (buf, "1.750000 33") != 0) result |= 1; buf[0] = '\0'; if (sprintf (buf, "%Le %d", 1.75L, 33, 44, 55) < 0 || strcmp (buf, "1.750000e+00 33") != 0) result |= 2; buf[0] = '\0'; if (sprintf (buf, "%Lg %d", 1.75L, 33, 44, 55) < 0 || strcmp (buf, "1.75 33") != 0) result |= 4; return result; }]])], [gl_cv_func_printf_long_double=yes], [gl_cv_func_printf_long_double=no], [case "$host_os" in # Guess no on BeOS. beos*) gl_cv_func_printf_long_double="guessing no";; # Guess yes on Android. linux*-android*) gl_cv_func_printf_long_double="guessing yes";; # Guess yes on MSVC, no on mingw. mingw*) AC_EGREP_CPP([Known], [ #ifdef _MSC_VER Known #endif ], [gl_cv_func_printf_long_double="guessing yes"], [gl_cv_func_printf_long_double="guessing no"]) ;; *) gl_cv_func_printf_long_double="guessing yes";; esac ]) ]) ]) dnl Test whether the *printf family of functions supports infinite and NaN dnl 'double' arguments and negative zero arguments in the %f, %e, %g dnl directives. (ISO C99, POSIX:2001) dnl Result is gl_cv_func_printf_infinite. AC_DEFUN([gl_PRINTF_INFINITE], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports infinite 'double' arguments], [gl_cv_func_printf_infinite], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static int strisnan (const char *string, size_t start_index, size_t end_index) { if (start_index < end_index) { if (string[start_index] == '-') start_index++; if (start_index + 3 <= end_index && memcmp (string + start_index, "nan", 3) == 0) { start_index += 3; if (start_index == end_index || (string[start_index] == '(' && string[end_index - 1] == ')')) return 1; } } return 0; } static int have_minus_zero () { static double plus_zero = 0.0; double minus_zero = - plus_zero; return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0; } static char buf[10000]; static double zero = 0.0; int main () { int result = 0; if (sprintf (buf, "%f", 1.0 / zero) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 1; if (sprintf (buf, "%f", -1.0 / zero) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 1; if (sprintf (buf, "%f", zero / zero) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 2; if (sprintf (buf, "%e", 1.0 / zero) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 4; if (sprintf (buf, "%e", -1.0 / zero) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 4; if (sprintf (buf, "%e", zero / zero) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 8; if (sprintf (buf, "%g", 1.0 / zero) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 16; if (sprintf (buf, "%g", -1.0 / zero) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 16; if (sprintf (buf, "%g", zero / zero) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 32; /* This test fails on HP-UX 10.20. */ if (have_minus_zero ()) if (sprintf (buf, "%g", - zero) < 0 || strcmp (buf, "-0") != 0) result |= 64; return result; }]])], [gl_cv_func_printf_infinite=yes], [gl_cv_func_printf_infinite=no], [ case "$host_os" in changequote(,)dnl # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_printf_infinite="guessing yes";; # Guess yes on musl systems. *-musl*) gl_cv_func_printf_infinite="guessing yes";; # Guess yes on FreeBSD >= 6. freebsd[1-5].*) gl_cv_func_printf_infinite="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_infinite="guessing yes";; # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_printf_infinite="guessing no";; darwin*) gl_cv_func_printf_infinite="guessing yes";; # Guess yes on HP-UX >= 11. hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite="guessing no";; hpux*) gl_cv_func_printf_infinite="guessing yes";; # Guess yes on NetBSD >= 3. netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) gl_cv_func_printf_infinite="guessing no";; netbsd*) gl_cv_func_printf_infinite="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_printf_infinite="guessing yes";; # Guess no on Android. linux*-android*) gl_cv_func_printf_infinite="guessing no";; changequote([,])dnl # Guess yes on MSVC, no on mingw. mingw*) AC_EGREP_CPP([Known], [ #ifdef _MSC_VER Known #endif ], [gl_cv_func_printf_infinite="guessing yes"], [gl_cv_func_printf_infinite="guessing no"]) ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_printf_infinite="$gl_cross_guess_normal";; esac ]) ]) ]) dnl Test whether the *printf family of functions supports infinite and NaN dnl 'long double' arguments in the %f, %e, %g directives. (ISO C99, POSIX:2001) dnl Result is gl_cv_func_printf_infinite_long_double. AC_DEFUN([gl_PRINTF_INFINITE_LONG_DOUBLE], [ AC_REQUIRE([gl_PRINTF_LONG_DOUBLE]) AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gl_BIGENDIAN]) AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl The user can set or unset the variable gl_printf_safe to indicate dnl that he wishes a safe handling of non-IEEE-754 'long double' values. if test -n "$gl_printf_safe"; then AC_DEFINE([CHECK_PRINTF_SAFE], [1], [Define if you wish *printf() functions that have a safe handling of non-IEEE-754 'long double' values.]) fi case "$gl_cv_func_printf_long_double" in *yes) AC_CACHE_CHECK([whether printf supports infinite 'long double' arguments], [gl_cv_func_printf_infinite_long_double], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ ]GL_NOCRASH[ #include #include #include static int strisnan (const char *string, size_t start_index, size_t end_index) { if (start_index < end_index) { if (string[start_index] == '-') start_index++; if (start_index + 3 <= end_index && memcmp (string + start_index, "nan", 3) == 0) { start_index += 3; if (start_index == end_index || (string[start_index] == '(' && string[end_index - 1] == ')')) return 1; } } return 0; } static char buf[10000]; static long double zeroL = 0.0L; int main () { int result = 0; nocrash_init(); if (sprintf (buf, "%Lf", 1.0L / zeroL) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 1; if (sprintf (buf, "%Lf", -1.0L / zeroL) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 1; if (sprintf (buf, "%Lf", zeroL / zeroL) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 1; if (sprintf (buf, "%Le", 1.0L / zeroL) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 1; if (sprintf (buf, "%Le", -1.0L / zeroL) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 1; if (sprintf (buf, "%Le", zeroL / zeroL) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 1; if (sprintf (buf, "%Lg", 1.0L / zeroL) < 0 || (strcmp (buf, "inf") != 0 && strcmp (buf, "infinity") != 0)) result |= 1; if (sprintf (buf, "%Lg", -1.0L / zeroL) < 0 || (strcmp (buf, "-inf") != 0 && strcmp (buf, "-infinity") != 0)) result |= 1; if (sprintf (buf, "%Lg", zeroL / zeroL) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 1; #if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE /* Representation of an 80-bit 'long double' as an initializer for a sequence of 'unsigned int' words. */ # ifdef WORDS_BIGENDIAN # define LDBL80_WORDS(exponent,manthi,mantlo) \ { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \ ((unsigned int) (manthi) << 16) | ((unsigned int) (mantlo) >> 16), \ (unsigned int) (mantlo) << 16 \ } # else # define LDBL80_WORDS(exponent,manthi,mantlo) \ { mantlo, manthi, exponent } # endif { /* Quiet NaN. */ static union { unsigned int word[4]; long double value; } x = { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) }; if (sprintf (buf, "%Lf", x.value) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 2; if (sprintf (buf, "%Le", x.value) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 2; if (sprintf (buf, "%Lg", x.value) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 2; } { /* Signalling NaN. */ static union { unsigned int word[4]; long double value; } x = { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) }; if (sprintf (buf, "%Lf", x.value) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 2; if (sprintf (buf, "%Le", x.value) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 2; if (sprintf (buf, "%Lg", x.value) < 0 || !strisnan (buf, 0, strlen (buf))) result |= 2; } { /* Pseudo-NaN. */ static union { unsigned int word[4]; long double value; } x = { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) }; if (sprintf (buf, "%Lf", x.value) <= 0) result |= 4; if (sprintf (buf, "%Le", x.value) <= 0) result |= 4; if (sprintf (buf, "%Lg", x.value) <= 0) result |= 4; } { /* Pseudo-Infinity. */ static union { unsigned int word[4]; long double value; } x = { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) }; if (sprintf (buf, "%Lf", x.value) <= 0) result |= 8; if (sprintf (buf, "%Le", x.value) <= 0) result |= 8; if (sprintf (buf, "%Lg", x.value) <= 0) result |= 8; } { /* Pseudo-Zero. */ static union { unsigned int word[4]; long double value; } x = { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) }; if (sprintf (buf, "%Lf", x.value) <= 0) result |= 16; if (sprintf (buf, "%Le", x.value) <= 0) result |= 16; if (sprintf (buf, "%Lg", x.value) <= 0) result |= 16; } { /* Unnormalized number. */ static union { unsigned int word[4]; long double value; } x = { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) }; if (sprintf (buf, "%Lf", x.value) <= 0) result |= 32; if (sprintf (buf, "%Le", x.value) <= 0) result |= 32; if (sprintf (buf, "%Lg", x.value) <= 0) result |= 32; } { /* Pseudo-Denormal. */ static union { unsigned int word[4]; long double value; } x = { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) }; if (sprintf (buf, "%Lf", x.value) <= 0) result |= 64; if (sprintf (buf, "%Le", x.value) <= 0) result |= 64; if (sprintf (buf, "%Lg", x.value) <= 0) result |= 64; } #endif return result; }]])], [gl_cv_func_printf_infinite_long_double=yes], [gl_cv_func_printf_infinite_long_double=no], [case "$host_cpu" in # Guess no on ia64, x86_64, i386. ia64 | x86_64 | i*86) gl_cv_func_printf_infinite_long_double="guessing no";; *) case "$host_os" in changequote(,)dnl # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_printf_infinite_long_double="guessing yes";; # Guess yes on musl systems. *-musl*) gl_cv_func_printf_infinite_long_double="guessing yes";; # Guess yes on FreeBSD >= 6. freebsd[1-5].*) gl_cv_func_printf_infinite_long_double="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_infinite_long_double="guessing yes";; # Guess yes on HP-UX >= 11. hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite_long_double="guessing no";; hpux*) gl_cv_func_printf_infinite_long_double="guessing yes";; # Guess no on Android. linux*-android*) gl_cv_func_printf_infinite_long_double="guessing no";; changequote([,])dnl # Guess yes on MSVC, no on mingw. mingw*) AC_EGREP_CPP([Known], [ #ifdef _MSC_VER Known #endif ], [gl_cv_func_printf_infinite_long_double="guessing yes"], [gl_cv_func_printf_infinite_long_double="guessing no"]) ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_printf_infinite_long_double="$gl_cross_guess_normal";; esac ;; esac ]) ]) ;; *) gl_cv_func_printf_infinite_long_double="irrelevant" ;; esac ]) dnl Test whether the *printf family of functions supports the 'a' and 'A' dnl conversion specifier for hexadecimal output of floating-point numbers. dnl (ISO C99, POSIX:2001) dnl Result is gl_cv_func_printf_directive_a. AC_DEFUN([gl_PRINTF_DIRECTIVE_A], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports the 'a' and 'A' directives], [gl_cv_func_printf_directive_a], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static char buf[100]; static double zero = 0.0; int main () { int result = 0; if (sprintf (buf, "%a %d", 3.1416015625, 33, 44, 55) < 0 || (strcmp (buf, "0x1.922p+1 33") != 0 && strcmp (buf, "0x3.244p+0 33") != 0 && strcmp (buf, "0x6.488p-1 33") != 0 && strcmp (buf, "0xc.91p-2 33") != 0)) result |= 1; if (sprintf (buf, "%A %d", -3.1416015625, 33, 44, 55) < 0 || (strcmp (buf, "-0X1.922P+1 33") != 0 && strcmp (buf, "-0X3.244P+0 33") != 0 && strcmp (buf, "-0X6.488P-1 33") != 0 && strcmp (buf, "-0XC.91P-2 33") != 0)) result |= 2; /* This catches a FreeBSD 6.1 bug: it doesn't round. */ if (sprintf (buf, "%.2a %d", 1.51, 33, 44, 55) < 0 || (strcmp (buf, "0x1.83p+0 33") != 0 && strcmp (buf, "0x3.05p-1 33") != 0 && strcmp (buf, "0x6.0ap-2 33") != 0 && strcmp (buf, "0xc.14p-3 33") != 0)) result |= 4; /* This catches a Mac OS X 10.12.4 (Darwin 16.5) bug: it doesn't round. */ if (sprintf (buf, "%.0a %d", 1.51, 33, 44, 55) < 0 || (strcmp (buf, "0x2p+0 33") != 0 && strcmp (buf, "0x3p-1 33") != 0 && strcmp (buf, "0x6p-2 33") != 0 && strcmp (buf, "0xcp-3 33") != 0)) result |= 4; /* This catches a FreeBSD 6.1 bug. See */ if (sprintf (buf, "%010a %d", 1.0 / zero, 33, 44, 55) < 0 || buf[0] == '0') result |= 8; /* This catches a Mac OS X 10.3.9 (Darwin 7.9) bug. */ if (sprintf (buf, "%.1a", 1.999) < 0 || (strcmp (buf, "0x1.0p+1") != 0 && strcmp (buf, "0x2.0p+0") != 0 && strcmp (buf, "0x4.0p-1") != 0 && strcmp (buf, "0x8.0p-2") != 0)) result |= 16; /* This catches the same Mac OS X 10.3.9 (Darwin 7.9) bug and also a glibc 2.4 bug . */ if (sprintf (buf, "%.1La", 1.999L) < 0 || (strcmp (buf, "0x1.0p+1") != 0 && strcmp (buf, "0x2.0p+0") != 0 && strcmp (buf, "0x4.0p-1") != 0 && strcmp (buf, "0x8.0p-2") != 0)) result |= 32; return result; }]])], [gl_cv_func_printf_directive_a=yes], [gl_cv_func_printf_directive_a=no], [ case "$host_os" in # Guess yes on glibc >= 2.5 systems. *-gnu* | gnu*) AC_EGREP_CPP([BZ2908], [ #include #ifdef __GNU_LIBRARY__ #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 5) || (__GLIBC__ > 2)) && !defined __UCLIBC__ BZ2908 #endif #endif ], [gl_cv_func_printf_directive_a="guessing yes"], [gl_cv_func_printf_directive_a="guessing no"]) ;; # Guess yes on musl systems. *-musl*) gl_cv_func_printf_directive_a="guessing yes";; # Guess no on Android. linux*-android*) gl_cv_func_printf_directive_a="guessing no";; # Guess no on native Windows. mingw*) gl_cv_func_printf_directive_a="guessing no";; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_printf_directive_a="$gl_cross_guess_normal";; esac ]) ]) ]) dnl Test whether the *printf family of functions supports the %F format dnl directive. (ISO C99, POSIX:2001) dnl Result is gl_cv_func_printf_directive_f. AC_DEFUN([gl_PRINTF_DIRECTIVE_F], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports the 'F' directive], [gl_cv_func_printf_directive_f], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static char buf[100]; static double zero = 0.0; int main () { int result = 0; if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0 || strcmp (buf, "1234567.000000 33") != 0) result |= 1; if (sprintf (buf, "%F", 1.0 / zero) < 0 || (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0)) result |= 2; /* This catches a Cygwin 1.5.x bug. */ if (sprintf (buf, "%.F", 1234.0) < 0 || strcmp (buf, "1234") != 0) result |= 4; return result; }]])], [gl_cv_func_printf_directive_f=yes], [gl_cv_func_printf_directive_f=no], [ case "$host_os" in changequote(,)dnl # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_printf_directive_f="guessing yes";; # Guess yes on musl systems. *-musl*) gl_cv_func_printf_directive_f="guessing yes";; # Guess yes on FreeBSD >= 6. freebsd[1-5].*) gl_cv_func_printf_directive_f="guessing no";; freebsd* | kfreebsd*) gl_cv_func_printf_directive_f="guessing yes";; # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_printf_directive_f="guessing no";; darwin*) gl_cv_func_printf_directive_f="guessing yes";; # Guess yes on Solaris >= 2.10. solaris2.[1-9][0-9]*) gl_cv_func_printf_directive_f="guessing yes";; solaris*) gl_cv_func_printf_directive_f="guessing no";; # Guess no on Android. linux*-android*) gl_cv_func_printf_directive_f="guessing no";; changequote([,])dnl # Guess yes on MSVC, no on mingw. mingw*) AC_EGREP_CPP([Known], [ #ifdef _MSC_VER Known #endif ], [gl_cv_func_printf_directive_f="guessing yes"], [gl_cv_func_printf_directive_f="guessing no"]) ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_printf_directive_f="$gl_cross_guess_normal";; esac ]) ]) ]) dnl Test whether the *printf family of functions supports the %n format dnl directive. (ISO C99, POSIX:2001) dnl Result is gl_cv_func_printf_directive_n. AC_DEFUN([gl_PRINTF_DIRECTIVE_N], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports the 'n' directive], [gl_cv_func_printf_directive_n], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include #ifdef _MSC_VER /* See page about "Parameter Validation" on msdn.microsoft.com. */ static void cdecl invalid_parameter_handler (const wchar_t *expression, const wchar_t *function, const wchar_t *file, unsigned int line, uintptr_t dummy) { exit (1); } #endif static char fmtstring[10]; static char buf[100]; int main () { int count = -1; #ifdef _MSC_VER _set_invalid_parameter_handler (invalid_parameter_handler); #endif /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) support %n in format strings in read-only memory but not in writable memory. */ strcpy (fmtstring, "%d %n"); if (sprintf (buf, fmtstring, 123, &count, 33, 44, 55) < 0 || strcmp (buf, "123 ") != 0 || count != 4) return 1; return 0; }]])], [gl_cv_func_printf_directive_n=yes], [gl_cv_func_printf_directive_n=no], [case "$host_os" in # Guess no on glibc when _FORTIFY_SOURCE >= 2. *-gnu* | gnu*) AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if _FORTIFY_SOURCE >= 2 error fail #endif ]])], [gl_cv_func_printf_directive_n="guessing yes"], [gl_cv_func_printf_directive_n="guessing no"]) ;; # Guess no on Android. linux*-android*) gl_cv_func_printf_directive_n="guessing no";; # Guess no on native Windows. mingw*) gl_cv_func_printf_directive_n="guessing no";; *) gl_cv_func_printf_directive_n="guessing yes";; esac ]) ]) ]) dnl Test whether the *printf family of functions supports the %ls format dnl directive and in particular, when a precision is specified, whether dnl the functions stop converting the wide string argument when the number dnl of bytes that have been produced by this conversion equals or exceeds dnl the precision. dnl Result is gl_cv_func_printf_directive_ls. AC_DEFUN([gl_PRINTF_DIRECTIVE_LS], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports the 'ls' directive], [gl_cv_func_printf_directive_ls], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include #include int main () { int result = 0; char buf[100]; /* Test whether %ls works at all. This test fails on OpenBSD 4.0, IRIX 6.5, Solaris 2.6, Haiku, but not on Cygwin 1.5. */ { static const wchar_t wstring[] = { 'a', 'b', 'c', 0 }; buf[0] = '\0'; if (sprintf (buf, "%ls", wstring) < 0 || strcmp (buf, "abc") != 0) result |= 1; } /* This test fails on IRIX 6.5, Solaris 2.6, Cygwin 1.5, Haiku (with an assertion failure inside libc), but not on OpenBSD 4.0. */ { static const wchar_t wstring[] = { 'a', 0 }; buf[0] = '\0'; if (sprintf (buf, "%ls", wstring) < 0 || strcmp (buf, "a") != 0) result |= 2; } /* Test whether precisions in %ls are supported as specified in ISO C 99 section 7.19.6.1: "If a precision is specified, no more than that many bytes are written (including shift sequences, if any), and the array shall contain a null wide character if, to equal the multibyte character sequence length given by the precision, the function would need to access a wide character one past the end of the array." This test fails on Solaris 10. */ { static const wchar_t wstring[] = { 'a', 'b', (wchar_t) 0xfdfdfdfd, 0 }; buf[0] = '\0'; if (sprintf (buf, "%.2ls", wstring) < 0 || strcmp (buf, "ab") != 0) result |= 8; } return result; }]])], [gl_cv_func_printf_directive_ls=yes], [gl_cv_func_printf_directive_ls=no], [ changequote(,)dnl case "$host_os" in openbsd*) gl_cv_func_printf_directive_ls="guessing no";; irix*) gl_cv_func_printf_directive_ls="guessing no";; solaris*) gl_cv_func_printf_directive_ls="guessing no";; cygwin*) gl_cv_func_printf_directive_ls="guessing no";; beos* | haiku*) gl_cv_func_printf_directive_ls="guessing no";; # Guess no on Android. linux*-android*) gl_cv_func_printf_directive_ls="guessing no";; # Guess yes on native Windows. mingw*) gl_cv_func_printf_directive_ls="guessing yes";; *) gl_cv_func_printf_directive_ls="guessing yes";; esac changequote([,])dnl ]) ]) ]) dnl Test whether the *printf family of functions supports POSIX/XSI format dnl strings with positions. (POSIX:2001) dnl Result is gl_cv_func_printf_positions. AC_DEFUN([gl_PRINTF_POSITIONS], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports POSIX/XSI format strings with positions], [gl_cv_func_printf_positions], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include /* The string "%2$d %1$d", with dollar characters protected from the shell's dollar expansion (possibly an autoconf bug). */ static char format[] = { '%', '2', '$', 'd', ' ', '%', '1', '$', 'd', '\0' }; static char buf[100]; int main () { sprintf (buf, format, 33, 55); return (strcmp (buf, "55 33") != 0); }]])], [gl_cv_func_printf_positions=yes], [gl_cv_func_printf_positions=no], [ changequote(,)dnl case "$host_os" in netbsd[1-3]* | netbsdelf[1-3]* | netbsdaout[1-3]* | netbsdcoff[1-3]*) gl_cv_func_printf_positions="guessing no";; beos*) gl_cv_func_printf_positions="guessing no";; # Guess yes on Android. linux*-android*) gl_cv_func_printf_positions="guessing yes";; # Guess no on native Windows. mingw* | pw*) gl_cv_func_printf_positions="guessing no";; *) gl_cv_func_printf_positions="guessing yes";; esac changequote([,])dnl ]) ]) ]) dnl Test whether the *printf family of functions supports POSIX/XSI format dnl strings with the ' flag for grouping of decimal digits. (POSIX:2001) dnl Result is gl_cv_func_printf_flag_grouping. AC_DEFUN([gl_PRINTF_FLAG_GROUPING], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports the grouping flag], [gl_cv_func_printf_flag_grouping], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static char buf[100]; int main () { if (sprintf (buf, "%'d %d", 1234567, 99) < 0 || buf[strlen (buf) - 1] != '9') return 1; return 0; }]])], [gl_cv_func_printf_flag_grouping=yes], [gl_cv_func_printf_flag_grouping=no], [ changequote(,)dnl case "$host_os" in cygwin*) gl_cv_func_printf_flag_grouping="guessing no";; netbsd*) gl_cv_func_printf_flag_grouping="guessing no";; # Guess no on Android. linux*-android*) gl_cv_func_printf_flag_grouping="guessing no";; # Guess no on native Windows. mingw* | pw*) gl_cv_func_printf_flag_grouping="guessing no";; *) gl_cv_func_printf_flag_grouping="guessing yes";; esac changequote([,])dnl ]) ]) ]) dnl Test whether the *printf family of functions supports the - flag correctly. dnl (ISO C99.) See dnl dnl Result is gl_cv_func_printf_flag_leftadjust. AC_DEFUN([gl_PRINTF_FLAG_LEFTADJUST], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports the left-adjust flag correctly], [gl_cv_func_printf_flag_leftadjust], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static char buf[100]; int main () { /* Check that a '-' flag is not annihilated by a negative width. */ if (sprintf (buf, "a%-*sc", -3, "b") < 0 || strcmp (buf, "ab c") != 0) return 1; return 0; }]])], [gl_cv_func_printf_flag_leftadjust=yes], [gl_cv_func_printf_flag_leftadjust=no], [ changequote(,)dnl case "$host_os" in # Guess yes on HP-UX 11. hpux11*) gl_cv_func_printf_flag_leftadjust="guessing yes";; # Guess no on HP-UX 10 and older. hpux*) gl_cv_func_printf_flag_leftadjust="guessing no";; # Guess yes on Android. linux*-android*) gl_cv_func_printf_flag_leftadjust="guessing yes";; # Guess yes on native Windows. mingw*) gl_cv_func_printf_flag_leftadjust="guessing yes";; # Guess yes otherwise. *) gl_cv_func_printf_flag_leftadjust="guessing yes";; esac changequote([,])dnl ]) ]) ]) dnl Test whether the *printf family of functions supports padding of non-finite dnl values with the 0 flag correctly. (ISO C99 + TC1 + TC2.) See dnl dnl Result is gl_cv_func_printf_flag_zero. AC_DEFUN([gl_PRINTF_FLAG_ZERO], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports the zero flag correctly], [gl_cv_func_printf_flag_zero], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static char buf[100]; static double zero = 0.0; int main () { if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0 || (strcmp (buf, " inf") != 0 && strcmp (buf, " infinity") != 0)) return 1; return 0; }]])], [gl_cv_func_printf_flag_zero=yes], [gl_cv_func_printf_flag_zero=no], [ changequote(,)dnl case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_printf_flag_zero="guessing yes";; # Guess yes on musl systems. *-musl*) gl_cv_func_printf_flag_zero="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_printf_flag_zero="guessing yes";; # Guess no on Android. linux*-android*) gl_cv_func_printf_flag_zero="guessing no";; # Guess no on native Windows. mingw*) gl_cv_func_printf_flag_zero="guessing no";; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_printf_flag_zero="$gl_cross_guess_normal";; esac changequote([,])dnl ]) ]) ]) dnl Test whether the *printf family of functions supports large precisions. dnl On mingw, precisions larger than 512 are treated like 512, in integer, dnl floating-point or pointer output. On Solaris 10/x86, precisions larger dnl than 510 in floating-point output crash the program. On Solaris 10/SPARC, dnl precisions larger than 510 in floating-point output yield wrong results. dnl On AIX 7.1, precisions larger than 998 in floating-point output yield dnl wrong results. On BeOS, precisions larger than 1044 crash the program. dnl Result is gl_cv_func_printf_precision. AC_DEFUN([gl_PRINTF_PRECISION], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports large precisions], [gl_cv_func_printf_precision], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static char buf[5000]; int main () { int result = 0; #ifdef __BEOS__ /* On BeOS, this would crash and show a dialog box. Avoid the crash. */ return 1; #endif if (sprintf (buf, "%.4000d %d", 1, 33, 44) < 4000 + 3) result |= 1; if (sprintf (buf, "%.4000f %d", 1.0, 33, 44) < 4000 + 5) result |= 2; if (sprintf (buf, "%.511f %d", 1.0, 33, 44) < 511 + 5 || buf[0] != '1') result |= 4; if (sprintf (buf, "%.999f %d", 1.0, 33, 44) < 999 + 5 || buf[0] != '1') result |= 4; return result; }]])], [gl_cv_func_printf_precision=yes], [gl_cv_func_printf_precision=no], [ changequote(,)dnl case "$host_os" in # Guess no only on Solaris, native Windows, and BeOS systems. solaris*) gl_cv_func_printf_precision="guessing no" ;; mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;; beos*) gl_cv_func_printf_precision="guessing no" ;; # Guess yes on Android. linux*-android*) gl_cv_func_printf_precision="guessing yes" ;; *) gl_cv_func_printf_precision="guessing yes" ;; esac changequote([,])dnl ]) ]) ]) dnl Test whether the *printf family of functions recovers gracefully in case dnl of an out-of-memory condition, or whether it crashes the entire program. dnl Result is gl_cv_func_printf_enomem. AC_DEFUN([gl_PRINTF_ENOMEM], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gl_MULTIARCH]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf survives out-of-memory conditions], [gl_cv_func_printf_enomem], [ gl_cv_func_printf_enomem="guessing no" if test "$cross_compiling" = no; then if test $APPLE_UNIVERSAL_BUILD = 0; then AC_LANG_CONFTEST([AC_LANG_SOURCE([ ]GL_NOCRASH[ changequote(,)dnl #include #include #include #include #include int main() { struct rlimit limit; int ret; nocrash_init (); /* Some printf implementations allocate temporary space with malloc. */ /* On BSD systems, malloc() is limited by RLIMIT_DATA. */ #ifdef RLIMIT_DATA if (getrlimit (RLIMIT_DATA, &limit) < 0) return 77; if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) limit.rlim_max = 5000000; limit.rlim_cur = limit.rlim_max; if (setrlimit (RLIMIT_DATA, &limit) < 0) return 77; #endif /* On Linux systems, malloc() is limited by RLIMIT_AS. */ #ifdef RLIMIT_AS if (getrlimit (RLIMIT_AS, &limit) < 0) return 77; if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) limit.rlim_max = 5000000; limit.rlim_cur = limit.rlim_max; if (setrlimit (RLIMIT_AS, &limit) < 0) return 77; #endif /* Some printf implementations allocate temporary space on the stack. */ #ifdef RLIMIT_STACK if (getrlimit (RLIMIT_STACK, &limit) < 0) return 77; if (limit.rlim_max == RLIM_INFINITY || limit.rlim_max > 5000000) limit.rlim_max = 5000000; limit.rlim_cur = limit.rlim_max; if (setrlimit (RLIMIT_STACK, &limit) < 0) return 77; #endif ret = printf ("%.5000000f", 1.0); return !(ret == 5000002 || (ret < 0 && errno == ENOMEM)); } changequote([,])dnl ])]) if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then (./conftest 2>&AS_MESSAGE_LOG_FD result=$? _AS_ECHO_LOG([\$? = $result]) if test $result != 0 && test $result != 77; then result=1; fi exit $result ) >/dev/null 2>/dev/null case $? in 0) gl_cv_func_printf_enomem="yes" ;; 77) gl_cv_func_printf_enomem="guessing no" ;; *) gl_cv_func_printf_enomem="no" ;; esac else gl_cv_func_printf_enomem="guessing no" fi rm -fr conftest* else dnl A universal build on Apple Mac OS X platforms. dnl The result would be 'no' in 32-bit mode and 'yes' in 64-bit mode. dnl But we need a configuration result that is valid in both modes. gl_cv_func_printf_enomem="guessing no" fi fi if test "$gl_cv_func_printf_enomem" = "guessing no"; then changequote(,)dnl case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_printf_enomem="guessing yes";; # Guess yes on Solaris. solaris*) gl_cv_func_printf_enomem="guessing yes";; # Guess yes on AIX. aix*) gl_cv_func_printf_enomem="guessing yes";; # Guess yes on HP-UX/hppa. hpux*) case "$host_cpu" in hppa*) gl_cv_func_printf_enomem="guessing yes";; *) gl_cv_func_printf_enomem="guessing no";; esac ;; # Guess yes on IRIX. irix*) gl_cv_func_printf_enomem="guessing yes";; # Guess yes on OSF/1. osf*) gl_cv_func_printf_enomem="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_printf_enomem="guessing yes";; # Guess yes on Haiku. haiku*) gl_cv_func_printf_enomem="guessing yes";; # Guess no on Android. linux*-android*) gl_cv_func_printf_enomem="guessing no";; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_printf_enomem="$gl_cross_guess_normal";; esac changequote([,])dnl fi ]) ]) dnl Test whether the snprintf function exists. (ISO C99, POSIX:2001) dnl Result is ac_cv_func_snprintf. AC_DEFUN([gl_SNPRINTF_PRESENCE], [ AC_CHECK_FUNCS_ONCE([snprintf]) ]) dnl Test whether the string produced by the snprintf function is always NUL dnl terminated. (ISO C99, POSIX:2001) dnl Result is gl_cv_func_snprintf_truncation_c99. AC_DEFUN([gl_SNPRINTF_TRUNCATION_C99], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_SNPRINTF_PRESENCE]) AC_CACHE_CHECK([whether snprintf truncates the result as in C99], [gl_cv_func_snprintf_truncation_c99], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #if HAVE_SNPRINTF # define my_snprintf snprintf #else # include static int my_snprintf (char *buf, int size, const char *format, ...) { va_list args; int ret; va_start (args, format); ret = vsnprintf (buf, size, format, args); va_end (args); return ret; } #endif static char buf[100]; int main () { strcpy (buf, "ABCDEF"); my_snprintf (buf, 3, "%d %d", 4567, 89); if (memcmp (buf, "45\0DEF", 6) != 0) return 1; return 0; }]])], [gl_cv_func_snprintf_truncation_c99=yes], [gl_cv_func_snprintf_truncation_c99=no], [ changequote(,)dnl case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on musl systems. *-musl*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on FreeBSD >= 5. freebsd[1-4].*) gl_cv_func_snprintf_truncation_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_snprintf_truncation_c99="guessing no";; darwin*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on OpenBSD >= 3.9. openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) gl_cv_func_snprintf_truncation_c99="guessing no";; openbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on Solaris >= 2.6. solaris2.[0-5] | solaris2.[0-5].*) gl_cv_func_snprintf_truncation_c99="guessing no";; solaris*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on AIX >= 4. aix[1-3]*) gl_cv_func_snprintf_truncation_c99="guessing no";; aix*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on HP-UX >= 11. hpux[7-9]* | hpux10*) gl_cv_func_snprintf_truncation_c99="guessing no";; hpux*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on IRIX >= 6.5. irix6.5) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on OSF/1 >= 5. osf[3-4]*) gl_cv_func_snprintf_truncation_c99="guessing no";; osf*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on NetBSD >= 3. netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) gl_cv_func_snprintf_truncation_c99="guessing no";; netbsd*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess yes on Android. linux*-android*) gl_cv_func_snprintf_truncation_c99="guessing yes";; # Guess no on native Windows. mingw*) gl_cv_func_snprintf_truncation_c99="guessing no";; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_snprintf_truncation_c99="$gl_cross_guess_normal";; esac changequote([,])dnl ]) ]) ]) dnl Test whether the return value of the snprintf function is the number dnl of bytes (excluding the terminating NUL) that would have been produced dnl if the buffer had been large enough. (ISO C99, POSIX:2001) dnl For example, this test program fails on IRIX 6.5: dnl --------------------------------------------------------------------- dnl #include dnl int main() dnl { dnl static char buf[8]; dnl int retval = snprintf (buf, 3, "%d", 12345); dnl return retval >= 0 && retval < 3; dnl } dnl --------------------------------------------------------------------- dnl Result is gl_cv_func_snprintf_retval_c99. AC_DEFUN_ONCE([gl_SNPRINTF_RETVAL_C99], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_SNPRINTF_PRESENCE]) AC_CACHE_CHECK([whether snprintf returns a byte count as in C99], [gl_cv_func_snprintf_retval_c99], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #if HAVE_SNPRINTF # define my_snprintf snprintf #else # include static int my_snprintf (char *buf, int size, const char *format, ...) { va_list args; int ret; va_start (args, format); ret = vsnprintf (buf, size, format, args); va_end (args); return ret; } #endif static char buf[100]; int main () { strcpy (buf, "ABCDEF"); if (my_snprintf (buf, 3, "%d %d", 4567, 89) != 7) return 1; if (my_snprintf (buf, 0, "%d %d", 4567, 89) != 7) return 2; if (my_snprintf (NULL, 0, "%d %d", 4567, 89) != 7) return 3; return 0; }]])], [gl_cv_func_snprintf_retval_c99=yes], [gl_cv_func_snprintf_retval_c99=no], [case "$host_os" in changequote(,)dnl # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_snprintf_retval_c99="guessing yes";; # Guess yes on musl systems. *-musl*) gl_cv_func_snprintf_retval_c99="guessing yes";; # Guess yes on FreeBSD >= 5. freebsd[1-4].*) gl_cv_func_snprintf_retval_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_snprintf_retval_c99="guessing no";; darwin*) gl_cv_func_snprintf_retval_c99="guessing yes";; # Guess yes on OpenBSD >= 3.9. openbsd[1-2].* | openbsd3.[0-8] | openbsd3.[0-8].*) gl_cv_func_snprintf_retval_c99="guessing no";; openbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; # Guess yes on Solaris >= 2.10. solaris2.[1-9][0-9]*) gl_cv_func_printf_sizes_c99="guessing yes";; solaris*) gl_cv_func_printf_sizes_c99="guessing no";; # Guess yes on AIX >= 4. aix[1-3]*) gl_cv_func_snprintf_retval_c99="guessing no";; aix*) gl_cv_func_snprintf_retval_c99="guessing yes";; # Guess yes on NetBSD >= 3. netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) gl_cv_func_snprintf_retval_c99="guessing no";; netbsd*) gl_cv_func_snprintf_retval_c99="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_snprintf_retval_c99="guessing yes";; # Guess yes on Android. linux*-android*) gl_cv_func_snprintf_retval_c99="guessing yes";; changequote([,])dnl # Guess yes on MSVC, no on mingw. mingw*) AC_EGREP_CPP([Known], [ #ifdef _MSC_VER Known #endif ], [gl_cv_func_snprintf_retval_c99="guessing yes"], [gl_cv_func_snprintf_retval_c99="guessing no"]) ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_snprintf_retval_c99="$gl_cross_guess_normal";; esac ]) ]) ]) dnl Test whether the snprintf function supports the %n format directive dnl also in truncated portions of the format string. (ISO C99, POSIX:2001) dnl Result is gl_cv_func_snprintf_directive_n. AC_DEFUN([gl_SNPRINTF_DIRECTIVE_N], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_SNPRINTF_PRESENCE]) AC_CACHE_CHECK([whether snprintf fully supports the 'n' directive], [gl_cv_func_snprintf_directive_n], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #if HAVE_SNPRINTF # define my_snprintf snprintf #else # include static int my_snprintf (char *buf, int size, const char *format, ...) { va_list args; int ret; va_start (args, format); ret = vsnprintf (buf, size, format, args); va_end (args); return ret; } #endif static char fmtstring[10]; static char buf[100]; int main () { int count = -1; /* Copy the format string. Some systems (glibc with _FORTIFY_SOURCE=2) support %n in format strings in read-only memory but not in writable memory. */ strcpy (fmtstring, "%d %n"); my_snprintf (buf, 4, fmtstring, 12345, &count, 33, 44, 55); if (count != 6) return 1; return 0; }]])], [gl_cv_func_snprintf_directive_n=yes], [gl_cv_func_snprintf_directive_n=no], [ case "$host_os" in # Guess no on glibc when _FORTIFY_SOURCE >= 2. *-gnu* | gnu*) AC_COMPILE_IFELSE( [AC_LANG_SOURCE( [[#if _FORTIFY_SOURCE >= 2 error fail #endif ]])], [gl_cv_func_snprintf_directive_n="guessing yes"], [gl_cv_func_snprintf_directive_n="guessing no"]) ;; changequote(,)dnl # Guess yes on musl systems. *-musl*) gl_cv_func_snprintf_directive_n="guessing yes";; # Guess yes on FreeBSD >= 5. freebsd[1-4].*) gl_cv_func_snprintf_directive_n="guessing no";; freebsd* | kfreebsd*) gl_cv_func_snprintf_directive_n="guessing yes";; # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_snprintf_directive_n="guessing no";; darwin*) gl_cv_func_snprintf_directive_n="guessing yes";; # Guess yes on Solaris >= 2.6. solaris2.[0-5] | solaris2.[0-5].*) gl_cv_func_snprintf_directive_n="guessing no";; solaris*) gl_cv_func_snprintf_directive_n="guessing yes";; # Guess yes on AIX >= 4. aix[1-3]*) gl_cv_func_snprintf_directive_n="guessing no";; aix*) gl_cv_func_snprintf_directive_n="guessing yes";; # Guess yes on IRIX >= 6.5. irix6.5) gl_cv_func_snprintf_directive_n="guessing yes";; # Guess yes on OSF/1 >= 5. osf[3-4]*) gl_cv_func_snprintf_directive_n="guessing no";; osf*) gl_cv_func_snprintf_directive_n="guessing yes";; # Guess yes on NetBSD >= 3. netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) gl_cv_func_snprintf_directive_n="guessing no";; netbsd*) gl_cv_func_snprintf_directive_n="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_snprintf_directive_n="guessing yes";; # Guess no on Android. linux*-android*) gl_cv_func_snprintf_directive_n="guessing no";; # Guess no on native Windows. mingw*) gl_cv_func_snprintf_directive_n="guessing no";; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_snprintf_directive_n="$gl_cross_guess_normal";; changequote([,])dnl esac ]) ]) ]) dnl Test whether the snprintf function, when passed a size = 1, writes any dnl output without bounds in this case, behaving like sprintf. This is the dnl case on Linux libc5. dnl Result is gl_cv_func_snprintf_size1. AC_DEFUN([gl_SNPRINTF_SIZE1], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_SNPRINTF_PRESENCE]) AC_CACHE_CHECK([whether snprintf respects a size of 1], [gl_cv_func_snprintf_size1], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #if HAVE_SNPRINTF # define my_snprintf snprintf #else # include static int my_snprintf (char *buf, int size, const char *format, ...) { va_list args; int ret; va_start (args, format); ret = vsnprintf (buf, size, format, args); va_end (args); return ret; } #endif int main() { static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; my_snprintf (buf, 1, "%d", 12345); return buf[1] != 'E'; }]])], [gl_cv_func_snprintf_size1=yes], [gl_cv_func_snprintf_size1=no], [case "$host_os" in # Guess yes on Android. linux*-android*) gl_cv_func_snprintf_size1="guessing yes" ;; # Guess yes on native Windows. mingw*) gl_cv_func_snprintf_size1="guessing yes" ;; *) gl_cv_func_snprintf_size1="guessing yes" ;; esac ]) ]) ]) dnl Test whether the vsnprintf function, when passed a zero size, produces no dnl output. (ISO C99, POSIX:2001) dnl For example, snprintf nevertheless writes a NUL byte in this case dnl on OSF/1 5.1: dnl --------------------------------------------------------------------- dnl #include dnl int main() dnl { dnl static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; dnl snprintf (buf, 0, "%d", 12345); dnl return buf[0] != 'D'; dnl } dnl --------------------------------------------------------------------- dnl And vsnprintf writes any output without bounds in this case, behaving like dnl vsprintf, on HP-UX 11 and OSF/1 5.1: dnl --------------------------------------------------------------------- dnl #include dnl #include dnl static int my_snprintf (char *buf, int size, const char *format, ...) dnl { dnl va_list args; dnl int ret; dnl va_start (args, format); dnl ret = vsnprintf (buf, size, format, args); dnl va_end (args); dnl return ret; dnl } dnl int main() dnl { dnl static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; dnl my_snprintf (buf, 0, "%d", 12345); dnl return buf[0] != 'D'; dnl } dnl --------------------------------------------------------------------- dnl Result is gl_cv_func_vsnprintf_zerosize_c99. AC_DEFUN([gl_VSNPRINTF_ZEROSIZE_C99], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether vsnprintf respects a zero size as in C99], [gl_cv_func_vsnprintf_zerosize_c99], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static int my_snprintf (char *buf, int size, const char *format, ...) { va_list args; int ret; va_start (args, format); ret = vsnprintf (buf, size, format, args); va_end (args); return ret; } int main() { static char buf[8] = { 'D', 'E', 'A', 'D', 'B', 'E', 'E', 'F' }; my_snprintf (buf, 0, "%d", 12345); return buf[0] != 'D'; }]])], [gl_cv_func_vsnprintf_zerosize_c99=yes], [gl_cv_func_vsnprintf_zerosize_c99=no], [ changequote(,)dnl case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on musl systems. *-musl*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on FreeBSD >= 5. freebsd[1-4].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; freebsd* | kfreebsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on Mac OS X >= 10.3. darwin[1-6].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; darwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on Cygwin. cygwin*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on Solaris >= 2.6. solaris2.[0-5] | solaris2.[0-5].*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; solaris*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on AIX >= 4. aix[1-3]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; aix*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on IRIX >= 6.5. irix6.5) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on NetBSD >= 3. netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; netbsd*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on Android. linux*-android*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # Guess yes on native Windows. mingw* | pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_vsnprintf_zerosize_c99="$gl_cross_guess_normal";; esac changequote([,])dnl ]) ]) ]) dnl The results of these tests on various platforms are: dnl dnl 1 = gl_PRINTF_SIZES_C99 dnl 2 = gl_PRINTF_LONG_DOUBLE dnl 3 = gl_PRINTF_INFINITE dnl 4 = gl_PRINTF_INFINITE_LONG_DOUBLE dnl 5 = gl_PRINTF_DIRECTIVE_A dnl 6 = gl_PRINTF_DIRECTIVE_F dnl 7 = gl_PRINTF_DIRECTIVE_N dnl 8 = gl_PRINTF_DIRECTIVE_LS dnl 9 = gl_PRINTF_POSITIONS dnl 10 = gl_PRINTF_FLAG_GROUPING dnl 11 = gl_PRINTF_FLAG_LEFTADJUST dnl 12 = gl_PRINTF_FLAG_ZERO dnl 13 = gl_PRINTF_PRECISION dnl 14 = gl_PRINTF_ENOMEM dnl 15 = gl_SNPRINTF_PRESENCE dnl 16 = gl_SNPRINTF_TRUNCATION_C99 dnl 17 = gl_SNPRINTF_RETVAL_C99 dnl 18 = gl_SNPRINTF_DIRECTIVE_N dnl 19 = gl_SNPRINTF_SIZE1 dnl 20 = gl_VSNPRINTF_ZEROSIZE_C99 dnl dnl 1 = checking whether printf supports size specifiers as in C99... dnl 2 = checking whether printf supports 'long double' arguments... dnl 3 = checking whether printf supports infinite 'double' arguments... dnl 4 = checking whether printf supports infinite 'long double' arguments... dnl 5 = checking whether printf supports the 'a' and 'A' directives... dnl 6 = checking whether printf supports the 'F' directive... dnl 7 = checking whether printf supports the 'n' directive... dnl 8 = checking whether printf supports the 'ls' directive... dnl 9 = checking whether printf supports POSIX/XSI format strings with positions... dnl 10 = checking whether printf supports the grouping flag... dnl 11 = checking whether printf supports the left-adjust flag correctly... dnl 12 = checking whether printf supports the zero flag correctly... dnl 13 = checking whether printf supports large precisions... dnl 14 = checking whether printf survives out-of-memory conditions... dnl 15 = checking for snprintf... dnl 16 = checking whether snprintf truncates the result as in C99... dnl 17 = checking whether snprintf returns a byte count as in C99... dnl 18 = checking whether snprintf fully supports the 'n' directive... dnl 19 = checking whether snprintf respects a size of 1... dnl 20 = checking whether vsnprintf respects a zero size as in C99... dnl dnl . = yes, # = no. dnl dnl 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 dnl glibc 2.5 . . . . . . . . . . . . . . . . . . . . dnl glibc 2.3.6 . . . . # . . . . . . . . . . . . . . . dnl FreeBSD 5.4, 6.1 . . . . # . . . . . . # . # . . . . . . dnl Mac OS X 10.5.8 . . . # # . . . . . . # . . . . . . . . dnl Mac OS X 10.3.9 . . . . # . . . . . . # . # . . . . . . dnl OpenBSD 3.9, 4.0 . . # # # # . # . # . # . # . . . . . . dnl Cygwin 1.7.0 (2009) . . . # . . . ? . . . . . ? . . . . . . dnl Cygwin 1.5.25 (2008) . . . # # . . # . . . . . # . . . . . . dnl Cygwin 1.5.19 (2006) # . . # # # . # . # . # # # . . . . . . dnl Solaris 11.4 . . # # # . . # . . . # . . . . . . . . dnl Solaris 11.3 . . . . # . . # . . . . . . . . . . . . dnl Solaris 11.0 . . # # # . . # . . . # . . . . . . . . dnl Solaris 10 . . # # # . . # . . . # # . . . . . . . dnl Solaris 2.6 ... 9 # . # # # # . # . . . # # . . . # . . . dnl Solaris 2.5.1 # . # # # # . # . . . # . . # # # # # # dnl AIX 7.1 . . # # # . . . . . . # # . . . . . . . dnl AIX 5.2 . . # # # . . . . . . # . . . . . . . . dnl AIX 4.3.2, 5.1 # . # # # # . . . . . # . . . . # . . . dnl HP-UX 11.31 . . . . # . . . . . . # . . . . # # . . dnl HP-UX 11.{00,11,23} # . . . # # . . . . . # . . . . # # . # dnl HP-UX 10.20 # . # . # # . ? . . # # . . . . # # ? # dnl IRIX 6.5 # . # # # # . # . . . # . . . . # . . . dnl OSF/1 5.1 # . # # # # . . . . . # . . . . # . . # dnl OSF/1 4.0d # . # # # # . . . . . # . . # # # # # # dnl NetBSD 5.0 . . . # # . . . . . . # . # . . . . . . dnl NetBSD 4.0 . ? ? ? ? ? . ? . ? ? ? ? ? . . . ? ? ? dnl NetBSD 3.0 . . . . # # . ? # # ? # . # . . . . . . dnl Haiku . . . # # # . # . . . . . ? . . ? . . . dnl BeOS # # . # # # . ? # . ? . # ? . . ? . . . dnl Android 4.3 . . # # # # # # . # . # . # . . . # . . dnl old mingw / msvcrt # # # # # # . . # # . # # ? . # # # . . dnl MSVC 9 # # # # # # # . # # . # # ? # # # # . . dnl mingw 2009-2011 . # . # . . . . # # . . . ? . . . . . . dnl mingw-w64 2011 # # # # # # . . # # . # # ? . # # # . . # pthread-thread.m4 serial 2 dnl Copyright (C) 2019-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_PTHREAD_THREAD], [ AC_REQUIRE([gl_PTHREAD_H]) AC_REQUIRE([AC_CANONICAL_HOST]) if { case "$host_os" in mingw*) true;; *) false;; esac; } \ && test $gl_threads_api = windows; then dnl Choose function names that don't conflict with the mingw-w64 winpthreads dnl library. REPLACE_PTHREAD_CREATE=1 REPLACE_PTHREAD_ATTR_INIT=1 REPLACE_PTHREAD_ATTR_GETDETACHSTATE=1 REPLACE_PTHREAD_ATTR_SETDETACHSTATE=1 REPLACE_PTHREAD_ATTR_DESTROY=1 REPLACE_PTHREAD_SELF=1 REPLACE_PTHREAD_EQUAL=1 REPLACE_PTHREAD_DETACH=1 REPLACE_PTHREAD_JOIN=1 REPLACE_PTHREAD_EXIT=1 else if test $HAVE_PTHREAD_H = 0; then HAVE_PTHREAD_CREATE=0 HAVE_PTHREAD_ATTR_INIT=0 HAVE_PTHREAD_ATTR_GETDETACHSTATE=0 HAVE_PTHREAD_ATTR_SETDETACHSTATE=0 HAVE_PTHREAD_ATTR_DESTROY=0 HAVE_PTHREAD_SELF=0 HAVE_PTHREAD_EQUAL=0 HAVE_PTHREAD_DETACH=0 HAVE_PTHREAD_JOIN=0 HAVE_PTHREAD_EXIT=0 else dnl On HP-UX 11.11, pthread_create() and pthread_attr_init() are only dnl defined as inline functions. AC_CACHE_CHECK([whether pthread_create exists as a global function], [gl_cv_func_pthread_create], [saved_LIBS="$LIBS" LIBS="$LIBS $LIBPMULTITHREAD" AC_LINK_IFELSE( [AC_LANG_SOURCE( [[extern #ifdef __cplusplus "C" #endif int pthread_create (void); int main () { return pthread_create (); } ]])], [gl_cv_func_pthread_create=yes], [gl_cv_func_pthread_create=no]) LIBS="$saved_LIBS" ]) if test $gl_cv_func_pthread_create = no; then REPLACE_PTHREAD_CREATE=1 REPLACE_PTHREAD_ATTR_INIT=1 AC_DEFINE([PTHREAD_CREATE_IS_INLINE], [1], [Define if pthread_create is an inline function.]) fi fi fi ]) # pthread_h.m4 serial 5 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_PTHREAD_H], [ dnl Use AC_REQUIRE here, so that the default behavior below is expanded dnl once only, before all statements that occur in other macros. AC_REQUIRE([gl_PTHREAD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_PTHREADLIB]) gl_CHECK_NEXT_HEADERS([pthread.h]) if test $ac_cv_header_pthread_h = yes; then HAVE_PTHREAD_H=1 dnl On mingw, if --enable-threads=windows or gl_AVOID_WINPTHREAD is used, dnl ignore the from the mingw-w64 winpthreads library. m4_ifdef([gl_][THREADLIB], [ AC_REQUIRE([gl_][THREADLIB]) if { case "$host_os" in mingw*) true;; *) false;; esac; } \ && test $gl_threads_api = windows; then HAVE_PTHREAD_H=0 fi ]) else HAVE_PTHREAD_H=0 fi AC_SUBST([HAVE_PTHREAD_H]) AC_CHECK_TYPES([pthread_t, pthread_spinlock_t], [], [], [AC_INCLUDES_DEFAULT[ #if HAVE_PTHREAD_H #include #endif]]) if test $ac_cv_type_pthread_t != yes; then HAVE_PTHREAD_T=0 fi if test $ac_cv_type_pthread_spinlock_t != yes; then HAVE_PTHREAD_SPINLOCK_T=0 fi dnl Constants may be defined as C preprocessor macros or as enum items. AC_CACHE_CHECK([for PTHREAD_CREATE_DETACHED], [gl_cv_const_PTHREAD_CREATE_DETACHED], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include int x = PTHREAD_CREATE_DETACHED; ]], [[]])], [gl_cv_const_PTHREAD_CREATE_DETACHED=yes], [gl_cv_const_PTHREAD_CREATE_DETACHED=no]) ]) if test $gl_cv_const_PTHREAD_CREATE_DETACHED != yes; then HAVE_PTHREAD_CREATE_DETACHED=0 fi AC_CACHE_CHECK([for PTHREAD_MUTEX_RECURSIVE], [gl_cv_const_PTHREAD_MUTEX_RECURSIVE], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include int x = PTHREAD_MUTEX_RECURSIVE; ]], [[]])], [gl_cv_const_PTHREAD_MUTEX_RECURSIVE=yes], [gl_cv_const_PTHREAD_MUTEX_RECURSIVE=no]) ]) if test $gl_cv_const_PTHREAD_MUTEX_RECURSIVE != yes; then HAVE_PTHREAD_MUTEX_RECURSIVE=0 fi AC_CACHE_CHECK([for PTHREAD_MUTEX_ROBUST], [gl_cv_const_PTHREAD_MUTEX_ROBUST], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include int x = PTHREAD_MUTEX_ROBUST; ]], [[]])], [gl_cv_const_PTHREAD_MUTEX_ROBUST=yes], [gl_cv_const_PTHREAD_MUTEX_ROBUST=no]) ]) if test $gl_cv_const_PTHREAD_MUTEX_ROBUST != yes; then HAVE_PTHREAD_MUTEX_ROBUST=0 fi AC_CACHE_CHECK([for PTHREAD_PROCESS_SHARED], [gl_cv_const_PTHREAD_PROCESS_SHARED], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include int x = PTHREAD_PROCESS_SHARED; ]], [[]])], [gl_cv_const_PTHREAD_PROCESS_SHARED=yes], [gl_cv_const_PTHREAD_PROCESS_SHARED=no]) ]) if test $gl_cv_const_PTHREAD_PROCESS_SHARED != yes; then HAVE_PTHREAD_PROCESS_SHARED=0 fi dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use, if it is not common dnl enough to be declared everywhere. gl_WARN_ON_USE_PREPARE([[#include ]], [ pthread_create pthread_attr_init pthread_attr_getdetachstate pthread_attr_setdetachstate pthread_attr_destroy pthread_self pthread_equal pthread_detach pthread_join pthread_exit pthread_once pthread_mutex_init pthread_mutexattr_init pthread_mutexattr_gettype pthread_mutexattr_settype pthread_mutexattr_getrobust pthread_mutexattr_setrobust pthread_mutexattr_destroy pthread_mutex_lock pthread_mutex_trylock pthread_mutex_timedlock pthread_mutex_unlock pthread_mutex_destroy pthread_rwlock_init pthread_rwlockattr_init pthread_rwlockattr_destroy pthread_rwlock_rdlock pthread_rwlock_wrlock pthread_rwlock_tryrdlock pthread_rwlock_trywrlock pthread_rwlock_timedrdlock pthread_rwlock_timedwrlock pthread_rwlock_unlock pthread_rwlock_destroy pthread_cond_init pthread_condattr_init pthread_condattr_destroy pthread_cond_wait pthread_cond_timedwait pthread_cond_signal pthread_cond_broadcast pthread_cond_destroy pthread_key_create pthread_setspecific pthread_getspecific pthread_key_delete pthread_spin_init pthread_spin_lock pthread_spin_trylock pthread_spin_unlock pthread_spin_destroy]) AC_REQUIRE([AC_C_RESTRICT]) dnl For backward compatibility with gnulib versions <= 2019-07. LIB_PTHREAD="$LIBPMULTITHREAD" AC_SUBST([LIB_PTHREAD]) ]) AC_DEFUN([gl_PTHREAD_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_PTHREAD_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_PTHREAD_H_DEFAULTS], [ GNULIB_PTHREAD_THREAD=0; AC_SUBST([GNULIB_PTHREAD_THREAD]) GNULIB_PTHREAD_ONCE=0; AC_SUBST([GNULIB_PTHREAD_ONCE]) GNULIB_PTHREAD_MUTEX=0; AC_SUBST([GNULIB_PTHREAD_MUTEX]) GNULIB_PTHREAD_RWLOCK=0; AC_SUBST([GNULIB_PTHREAD_RWLOCK]) GNULIB_PTHREAD_COND=0; AC_SUBST([GNULIB_PTHREAD_COND]) GNULIB_PTHREAD_TSS=0; AC_SUBST([GNULIB_PTHREAD_TSS]) GNULIB_PTHREAD_SPIN=0; AC_SUBST([GNULIB_PTHREAD_SPIN]) GNULIB_PTHREAD_MUTEX_TIMEDLOCK=0; AC_SUBST([GNULIB_PTHREAD_MUTEX_TIMEDLOCK]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_PTHREAD_T=1; AC_SUBST([HAVE_PTHREAD_T]) HAVE_PTHREAD_SPINLOCK_T=1; AC_SUBST([HAVE_PTHREAD_SPINLOCK_T]) HAVE_PTHREAD_CREATE_DETACHED=1; AC_SUBST([HAVE_PTHREAD_CREATE_DETACHED]) HAVE_PTHREAD_MUTEX_RECURSIVE=1; AC_SUBST([HAVE_PTHREAD_MUTEX_RECURSIVE]) HAVE_PTHREAD_MUTEX_ROBUST=1; AC_SUBST([HAVE_PTHREAD_MUTEX_ROBUST]) HAVE_PTHREAD_PROCESS_SHARED=1; AC_SUBST([HAVE_PTHREAD_PROCESS_SHARED]) HAVE_PTHREAD_CREATE=1; AC_SUBST([HAVE_PTHREAD_CREATE]) HAVE_PTHREAD_ATTR_INIT=1; AC_SUBST([HAVE_PTHREAD_ATTR_INIT]) HAVE_PTHREAD_ATTR_GETDETACHSTATE=1; AC_SUBST([HAVE_PTHREAD_ATTR_GETDETACHSTATE]) HAVE_PTHREAD_ATTR_SETDETACHSTATE=1; AC_SUBST([HAVE_PTHREAD_ATTR_SETDETACHSTATE]) HAVE_PTHREAD_ATTR_DESTROY=1; AC_SUBST([HAVE_PTHREAD_ATTR_DESTROY]) HAVE_PTHREAD_SELF=1; AC_SUBST([HAVE_PTHREAD_SELF]) HAVE_PTHREAD_EQUAL=1; AC_SUBST([HAVE_PTHREAD_EQUAL]) HAVE_PTHREAD_DETACH=1; AC_SUBST([HAVE_PTHREAD_DETACH]) HAVE_PTHREAD_JOIN=1; AC_SUBST([HAVE_PTHREAD_JOIN]) HAVE_PTHREAD_EXIT=1; AC_SUBST([HAVE_PTHREAD_EXIT]) HAVE_PTHREAD_ONCE=1; AC_SUBST([HAVE_PTHREAD_ONCE]) HAVE_PTHREAD_MUTEX_INIT=1; AC_SUBST([HAVE_PTHREAD_MUTEX_INIT]) HAVE_PTHREAD_MUTEXATTR_INIT=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_INIT]) HAVE_PTHREAD_MUTEXATTR_GETTYPE=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_GETTYPE]) HAVE_PTHREAD_MUTEXATTR_SETTYPE=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_SETTYPE]) HAVE_PTHREAD_MUTEXATTR_GETROBUST=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_GETROBUST]) HAVE_PTHREAD_MUTEXATTR_SETROBUST=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_SETROBUST]) HAVE_PTHREAD_MUTEXATTR_DESTROY=1; AC_SUBST([HAVE_PTHREAD_MUTEXATTR_DESTROY]) HAVE_PTHREAD_MUTEX_LOCK=1; AC_SUBST([HAVE_PTHREAD_MUTEX_LOCK]) HAVE_PTHREAD_MUTEX_TRYLOCK=1; AC_SUBST([HAVE_PTHREAD_MUTEX_TRYLOCK]) HAVE_PTHREAD_MUTEX_TIMEDLOCK=1; AC_SUBST([HAVE_PTHREAD_MUTEX_TIMEDLOCK]) HAVE_PTHREAD_MUTEX_UNLOCK=1; AC_SUBST([HAVE_PTHREAD_MUTEX_UNLOCK]) HAVE_PTHREAD_MUTEX_DESTROY=1; AC_SUBST([HAVE_PTHREAD_MUTEX_DESTROY]) HAVE_PTHREAD_RWLOCK_INIT=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_INIT]) HAVE_PTHREAD_RWLOCKATTR_INIT=1; AC_SUBST([HAVE_PTHREAD_RWLOCKATTR_INIT]) HAVE_PTHREAD_RWLOCKATTR_DESTROY=1; AC_SUBST([HAVE_PTHREAD_RWLOCKATTR_DESTROY]) HAVE_PTHREAD_RWLOCK_RDLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_RDLOCK]) HAVE_PTHREAD_RWLOCK_WRLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_WRLOCK]) HAVE_PTHREAD_RWLOCK_TRYRDLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_TRYRDLOCK]) HAVE_PTHREAD_RWLOCK_TRYWRLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_TRYWRLOCK]) HAVE_PTHREAD_RWLOCK_TIMEDRDLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_TIMEDRDLOCK]) HAVE_PTHREAD_RWLOCK_TIMEDWRLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_TIMEDWRLOCK]) HAVE_PTHREAD_RWLOCK_UNLOCK=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_UNLOCK]) HAVE_PTHREAD_RWLOCK_DESTROY=1; AC_SUBST([HAVE_PTHREAD_RWLOCK_DESTROY]) HAVE_PTHREAD_COND_INIT=1; AC_SUBST([HAVE_PTHREAD_COND_INIT]) HAVE_PTHREAD_CONDATTR_INIT=1; AC_SUBST([HAVE_PTHREAD_CONDATTR_INIT]) HAVE_PTHREAD_CONDATTR_DESTROY=1; AC_SUBST([HAVE_PTHREAD_CONDATTR_DESTROY]) HAVE_PTHREAD_COND_WAIT=1; AC_SUBST([HAVE_PTHREAD_COND_WAIT]) HAVE_PTHREAD_COND_TIMEDWAIT=1; AC_SUBST([HAVE_PTHREAD_COND_TIMEDWAIT]) HAVE_PTHREAD_COND_SIGNAL=1; AC_SUBST([HAVE_PTHREAD_COND_SIGNAL]) HAVE_PTHREAD_COND_BROADCAST=1; AC_SUBST([HAVE_PTHREAD_COND_BROADCAST]) HAVE_PTHREAD_COND_DESTROY=1; AC_SUBST([HAVE_PTHREAD_COND_DESTROY]) HAVE_PTHREAD_KEY_CREATE=1; AC_SUBST([HAVE_PTHREAD_KEY_CREATE]) HAVE_PTHREAD_SETSPECIFIC=1; AC_SUBST([HAVE_PTHREAD_SETSPECIFIC]) HAVE_PTHREAD_GETSPECIFIC=1; AC_SUBST([HAVE_PTHREAD_GETSPECIFIC]) HAVE_PTHREAD_KEY_DELETE=1; AC_SUBST([HAVE_PTHREAD_KEY_DELETE]) HAVE_PTHREAD_SPIN_INIT=1; AC_SUBST([HAVE_PTHREAD_SPIN_INIT]) HAVE_PTHREAD_SPIN_LOCK=1; AC_SUBST([HAVE_PTHREAD_SPIN_LOCK]) HAVE_PTHREAD_SPIN_TRYLOCK=1; AC_SUBST([HAVE_PTHREAD_SPIN_TRYLOCK]) HAVE_PTHREAD_SPIN_UNLOCK=1; AC_SUBST([HAVE_PTHREAD_SPIN_UNLOCK]) HAVE_PTHREAD_SPIN_DESTROY=1; AC_SUBST([HAVE_PTHREAD_SPIN_DESTROY]) REPLACE_PTHREAD_CREATE=0; AC_SUBST([REPLACE_PTHREAD_CREATE]) REPLACE_PTHREAD_ATTR_INIT=0; AC_SUBST([REPLACE_PTHREAD_ATTR_INIT]) REPLACE_PTHREAD_ATTR_GETDETACHSTATE=0; AC_SUBST([REPLACE_PTHREAD_ATTR_GETDETACHSTATE]) REPLACE_PTHREAD_ATTR_SETDETACHSTATE=0; AC_SUBST([REPLACE_PTHREAD_ATTR_SETDETACHSTATE]) REPLACE_PTHREAD_ATTR_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_ATTR_DESTROY]) REPLACE_PTHREAD_SELF=0; AC_SUBST([REPLACE_PTHREAD_SELF]) REPLACE_PTHREAD_EQUAL=0; AC_SUBST([REPLACE_PTHREAD_EQUAL]) REPLACE_PTHREAD_DETACH=0; AC_SUBST([REPLACE_PTHREAD_DETACH]) REPLACE_PTHREAD_JOIN=0; AC_SUBST([REPLACE_PTHREAD_JOIN]) REPLACE_PTHREAD_EXIT=0; AC_SUBST([REPLACE_PTHREAD_EXIT]) REPLACE_PTHREAD_ONCE=0; AC_SUBST([REPLACE_PTHREAD_ONCE]) REPLACE_PTHREAD_MUTEX_INIT=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_INIT]) REPLACE_PTHREAD_MUTEXATTR_INIT=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_INIT]) REPLACE_PTHREAD_MUTEXATTR_GETTYPE=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_GETTYPE]) REPLACE_PTHREAD_MUTEXATTR_SETTYPE=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_SETTYPE]) REPLACE_PTHREAD_MUTEXATTR_GETROBUST=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_GETROBUST]) REPLACE_PTHREAD_MUTEXATTR_SETROBUST=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_SETROBUST]) REPLACE_PTHREAD_MUTEXATTR_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_MUTEXATTR_DESTROY]) REPLACE_PTHREAD_MUTEX_LOCK=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_LOCK]) REPLACE_PTHREAD_MUTEX_TRYLOCK=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_TRYLOCK]) REPLACE_PTHREAD_MUTEX_TIMEDLOCK=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_TIMEDLOCK]) REPLACE_PTHREAD_MUTEX_UNLOCK=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_UNLOCK]) REPLACE_PTHREAD_MUTEX_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_MUTEX_DESTROY]) REPLACE_PTHREAD_RWLOCK_INIT=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_INIT]) REPLACE_PTHREAD_RWLOCKATTR_INIT=0; AC_SUBST([REPLACE_PTHREAD_RWLOCKATTR_INIT]) REPLACE_PTHREAD_RWLOCKATTR_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_RWLOCKATTR_DESTROY]) REPLACE_PTHREAD_RWLOCK_RDLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_RDLOCK]) REPLACE_PTHREAD_RWLOCK_WRLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_WRLOCK]) REPLACE_PTHREAD_RWLOCK_TRYRDLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_TRYRDLOCK]) REPLACE_PTHREAD_RWLOCK_TRYWRLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_TRYWRLOCK]) REPLACE_PTHREAD_RWLOCK_TIMEDRDLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_TIMEDRDLOCK]) REPLACE_PTHREAD_RWLOCK_TIMEDWRLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_TIMEDWRLOCK]) REPLACE_PTHREAD_RWLOCK_UNLOCK=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_UNLOCK]) REPLACE_PTHREAD_RWLOCK_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_RWLOCK_DESTROY]) REPLACE_PTHREAD_COND_INIT=0; AC_SUBST([REPLACE_PTHREAD_COND_INIT]) REPLACE_PTHREAD_CONDATTR_INIT=0; AC_SUBST([REPLACE_PTHREAD_CONDATTR_INIT]) REPLACE_PTHREAD_CONDATTR_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_CONDATTR_DESTROY]) REPLACE_PTHREAD_COND_WAIT=0; AC_SUBST([REPLACE_PTHREAD_COND_WAIT]) REPLACE_PTHREAD_COND_TIMEDWAIT=0; AC_SUBST([REPLACE_PTHREAD_COND_TIMEDWAIT]) REPLACE_PTHREAD_COND_SIGNAL=0; AC_SUBST([REPLACE_PTHREAD_COND_SIGNAL]) REPLACE_PTHREAD_COND_BROADCAST=0; AC_SUBST([REPLACE_PTHREAD_COND_BROADCAST]) REPLACE_PTHREAD_COND_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_COND_DESTROY]) REPLACE_PTHREAD_KEY_CREATE=0; AC_SUBST([REPLACE_PTHREAD_KEY_CREATE]) REPLACE_PTHREAD_SETSPECIFIC=0; AC_SUBST([REPLACE_PTHREAD_SETSPECIFIC]) REPLACE_PTHREAD_GETSPECIFIC=0; AC_SUBST([REPLACE_PTHREAD_GETSPECIFIC]) REPLACE_PTHREAD_KEY_DELETE=0; AC_SUBST([REPLACE_PTHREAD_KEY_DELETE]) REPLACE_PTHREAD_SPIN_INIT=0; AC_SUBST([REPLACE_PTHREAD_SPIN_INIT]) REPLACE_PTHREAD_SPIN_LOCK=0; AC_SUBST([REPLACE_PTHREAD_SPIN_LOCK]) REPLACE_PTHREAD_SPIN_TRYLOCK=0; AC_SUBST([REPLACE_PTHREAD_SPIN_TRYLOCK]) REPLACE_PTHREAD_SPIN_UNLOCK=0; AC_SUBST([REPLACE_PTHREAD_SPIN_UNLOCK]) REPLACE_PTHREAD_SPIN_DESTROY=0; AC_SUBST([REPLACE_PTHREAD_SPIN_DESTROY]) ]) # pthread_rwlock_rdlock.m4 serial 4 dnl Copyright (C) 2017-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl Inspired by dnl https://github.com/linux-test-project/ltp/blob/master/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_rdlock/2-2.c dnl by Intel Corporation. dnl Test whether in a situation where dnl - an rwlock is taken by a reader and has a writer waiting, dnl - an additional reader requests the lock, dnl - the waiting writer and the requesting reader threads have the same dnl priority, dnl the requesting reader thread gets blocked, so that at some point the dnl waiting writer can acquire the lock. dnl Without such a guarantee, when there a N readers and each of the readers dnl spends more than 1/Nth of the time with the lock held, there is a high dnl probability that the waiting writer will not get the lock in a given finite dnl time, a phenomenon called "writer starvation". dnl Without such a guarantee, applications have a hard time avoiding writer dnl starvation. dnl dnl POSIX:2017 makes this requirement only for implementations that support TPS dnl (Thread Priority Scheduling) and only for the scheduling policies SCHED_FIFO dnl and SCHED_RR, see dnl https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_rwlock_rdlock.html dnl but this test verifies the guarantee regardless of TPS and regardless of dnl scheduling policy. dnl Glibc does not provide this guarantee (and never will on Linux), see dnl https://sourceware.org/bugzilla/show_bug.cgi?id=13701 dnl https://bugzilla.redhat.com/show_bug.cgi?id=1410052 AC_DEFUN([gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER], [ AC_REQUIRE([gl_THREADLIB_EARLY]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether pthread_rwlock_rdlock prefers a writer to a reader], [gl_cv_pthread_rwlock_rdlock_prefer_writer], [save_LIBS="$LIBS" LIBS="$LIBS $LIBMULTITHREAD" AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include #include #define SUCCEED() exit (0) #define FAILURE() exit (1) #define UNEXPECTED(n) (exit (10 + (n))) /* The main thread creates the waiting writer and the requesting reader threads in the default way; this guarantees that they have the same priority. We can reuse the main thread as first reader thread. */ static pthread_rwlock_t lock; static pthread_t reader1; static pthread_t writer; static pthread_t reader2; static pthread_t timer; /* Used to pass control from writer to reader2 and from reader2 to timer, as in a relay race. Passing control from one running thread to another running thread is most likely faster than to create the second thread. */ static pthread_mutex_t baton; static void * timer_func (void *ignored) { /* Step 13 (can be before or after step 12): The timer thread takes the baton, then waits a moment to make sure it can tell whether the second reader thread is blocked at step 12. */ if (pthread_mutex_lock (&baton)) UNEXPECTED (13); usleep (100000); /* By the time we get here, it's clear that the second reader thread is blocked at step 12. This is the desired behaviour. */ SUCCEED (); } static void * reader2_func (void *ignored) { int err; /* Step 8 (can be before or after step 7): The second reader thread takes the baton, then waits a moment to make sure the writer thread has reached step 7. */ if (pthread_mutex_lock (&baton)) UNEXPECTED (8); usleep (100000); /* Step 9: The second reader thread requests the lock. */ err = pthread_rwlock_tryrdlock (&lock); if (err == 0) FAILURE (); else if (err != EBUSY) UNEXPECTED (9); /* Step 10: Launch a timer, to test whether the next call blocks. */ if (pthread_create (&timer, NULL, timer_func, NULL)) UNEXPECTED (10); /* Step 11: Release the baton. */ if (pthread_mutex_unlock (&baton)) UNEXPECTED (11); /* Step 12: The second reader thread requests the lock. */ err = pthread_rwlock_rdlock (&lock); if (err == 0) FAILURE (); else UNEXPECTED (12); } static void * writer_func (void *ignored) { /* Step 4: Take the baton, so that the second reader thread does not go ahead too early. */ if (pthread_mutex_lock (&baton)) UNEXPECTED (4); /* Step 5: Create the second reader thread. */ if (pthread_create (&reader2, NULL, reader2_func, NULL)) UNEXPECTED (5); /* Step 6: Release the baton. */ if (pthread_mutex_unlock (&baton)) UNEXPECTED (6); /* Step 7: The writer thread requests the lock. */ if (pthread_rwlock_wrlock (&lock)) UNEXPECTED (7); return NULL; } int main () { reader1 = pthread_self (); /* Step 1: The main thread initializes the lock and the baton. */ if (pthread_rwlock_init (&lock, NULL)) UNEXPECTED (1); if (pthread_mutex_init (&baton, NULL)) UNEXPECTED (1); /* Step 2: The main thread acquires the lock as a reader. */ if (pthread_rwlock_rdlock (&lock)) UNEXPECTED (2); /* Step 3: Create the writer thread. */ if (pthread_create (&writer, NULL, writer_func, NULL)) UNEXPECTED (3); /* Job done. Go to sleep. */ for (;;) { sleep (1); } } ]])], [gl_cv_pthread_rwlock_rdlock_prefer_writer=yes], [gl_cv_pthread_rwlock_rdlock_prefer_writer=no], [case "$host_os" in # Guess no on glibc systems. *-gnu* | gnu*) gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" ;; # Guess no on musl systems. *-musl*) gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" ;; # Guess no on bionic systems. *-android*) gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" ;; # Guess yes on native Windows with the mingw-w64 winpthreads library. # Guess no on native Windows with the gnulib windows-rwlock module. mingw*) if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing yes" else gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing no" fi ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_pthread_rwlock_rdlock_prefer_writer="$gl_cross_guess_normal" ;; esac ]) LIBS="$save_LIBS" ]) case "$gl_cv_pthread_rwlock_rdlock_prefer_writer" in *yes) AC_DEFINE([HAVE_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER], [1], [Define if the 'pthread_rwlock_rdlock' function prefers a writer to a reader.]) ;; esac ]) # pthread_sigmask.m4 serial 18 dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK], [ AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([pthread_sigmask]) dnl On MinGW pthread_sigmask is just a macro which always returns 0. dnl It does not exist as a real function, which is required by POSIX. AC_CACHE_CHECK([whether pthread_sigmask is a macro], [gl_cv_func_pthread_sigmask_macro], [AC_EGREP_CPP([headers_define_pthread_sigmask], [ #include #include #ifdef pthread_sigmask headers_define_pthread_sigmask #endif], [gl_cv_func_pthread_sigmask_macro=yes], [gl_cv_func_pthread_sigmask_macro=no]) ]) LIB_PTHREAD_SIGMASK= if test $gl_cv_func_pthread_sigmask_macro = yes; then dnl pthread_sigmask is a dummy macro. HAVE_PTHREAD_SIGMASK=0 dnl Make sure to '#undef pthread_sigmask' before defining it. REPLACE_PTHREAD_SIGMASK=1 else dnl Test whether the gnulib module 'threadlib' is in use. dnl Some packages like Emacs use --avoid=threadlib. dnl Write the symbol in such a way that it does not cause 'aclocal' to pick dnl the threadlib.m4 file that is installed in $PREFIX/share/aclocal/. m4_ifdef([gl_][THREADLIB], [ AC_REQUIRE([gl_][THREADLIB]) if test "$gl_threads_api" = posix; then if test $ac_cv_func_pthread_sigmask = yes; then dnl pthread_sigmask is available without -lpthread. : else if test -n "$LIBMULTITHREAD"; then AC_CACHE_CHECK([for pthread_sigmask in $LIBMULTITHREAD], [gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD], [gl_save_LIBS="$LIBS" LIBS="$LIBS $LIBMULTITHREAD" AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include #include ]], [[return pthread_sigmask (0, (sigset_t *) 0, (sigset_t *) 0);]]) ], [gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD=yes], [gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD=no]) LIBS="$gl_save_LIBS" ]) if test $gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD = yes; then dnl pthread_sigmask is available with -pthread or -lpthread. LIB_PTHREAD_SIGMASK="$LIBMULTITHREAD" else dnl pthread_sigmask is not available at all. HAVE_PTHREAD_SIGMASK=0 fi else dnl pthread_sigmask is not available at all. HAVE_PTHREAD_SIGMASK=0 fi fi else dnl pthread_sigmask may exist but does not interoperate with the chosen dnl multithreading facility. if test $ac_cv_func_pthread_sigmask = yes; then REPLACE_PTHREAD_SIGMASK=1 else HAVE_PTHREAD_SIGMASK=0 fi fi ], [ dnl The module 'threadlib' is not in use, due to --avoid=threadlib being dnl specified. dnl The package either has prepared CPPFLAGS and LIBS for use of dnl POSIX:2008 threads, or wants to build single-threaded programs. if test $ac_cv_func_pthread_sigmask = yes; then dnl pthread_sigmask exists and does not require extra libraries. dnl Assume that it is declared. : else dnl pthread_sigmask either does not exist or needs extra libraries. HAVE_PTHREAD_SIGMASK=0 dnl Define the symbol rpl_pthread_sigmask, not pthread_sigmask, dnl so as to not accidentally override the system's pthread_sigmask dnl symbol from libpthread. This is necessary on IRIX 6.5. REPLACE_PTHREAD_SIGMASK=1 fi ]) fi AC_SUBST([LIB_PTHREAD_SIGMASK]) dnl We don't need a variable LTLIB_PTHREAD_SIGMASK, because when dnl "$gl_threads_api" = posix, $LTLIBMULTITHREAD and $LIBMULTITHREAD are the dnl same. dnl Now test for some bugs in the system function. if test $HAVE_PTHREAD_SIGMASK = 1; then AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl On FreeBSD 6.4, HP-UX 11.31, Solaris 9, in programs that are not linked dnl with -lpthread, the pthread_sigmask() function always returns 0 and has dnl no effect. if test -z "$LIB_PTHREAD_SIGMASK"; then case " $LIBS " in *' -pthread '*) ;; *' -lpthread '*) ;; *) AC_CACHE_CHECK([whether pthread_sigmask works without -lpthread], [gl_cv_func_pthread_sigmask_in_libc_works], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include int main () { sigset_t set; sigemptyset (&set); return pthread_sigmask (1729, &set, NULL) != 0; }]])], [gl_cv_func_pthread_sigmask_in_libc_works=no], [gl_cv_func_pthread_sigmask_in_libc_works=yes], [ changequote(,)dnl case "$host_os" in freebsd* | hpux* | solaris | solaris2.[2-9]*) gl_cv_func_pthread_sigmask_in_libc_works="guessing no";; *) gl_cv_func_pthread_sigmask_in_libc_works="guessing yes";; esac changequote([,])dnl ]) ]) case "$gl_cv_func_pthread_sigmask_in_libc_works" in *no) REPLACE_PTHREAD_SIGMASK=1 AC_DEFINE([PTHREAD_SIGMASK_INEFFECTIVE], [1], [Define to 1 if pthread_sigmask may return 0 and have no effect.]) ;; esac;; esac fi dnl On Cygwin 1.7.5, the pthread_sigmask() has a wrong return value dnl convention: Upon failure, it returns -1 and sets errno. AC_CACHE_CHECK([whether pthread_sigmask returns error numbers], [gl_cv_func_pthread_sigmask_return_works], [ gl_save_LIBS="$LIBS" LIBS="$LIBS $LIB_PTHREAD_SIGMASK" AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include int main () { sigset_t set; sigemptyset (&set); if (pthread_sigmask (1729, &set, NULL) == -1) return 1; return 0; }]])], [gl_cv_func_pthread_sigmask_return_works=yes], [gl_cv_func_pthread_sigmask_return_works=no], [case "$host_os" in cygwin*) gl_cv_func_pthread_sigmask_return_works="guessing no";; *) gl_cv_func_pthread_sigmask_return_works="guessing yes";; esac ]) LIBS="$gl_save_LIBS" ]) case "$gl_cv_func_pthread_sigmask_return_works" in *no) REPLACE_PTHREAD_SIGMASK=1 AC_DEFINE([PTHREAD_SIGMASK_FAILS_WITH_ERRNO], [1], [Define to 1 if pthread_sigmask(), when it fails, returns -1 and sets errno.]) ;; esac dnl On IRIX 6.5, in a single-threaded program, pending signals are not dnl immediately delivered when they are unblocked through pthread_sigmask, dnl only a little while later. AC_CACHE_CHECK([whether pthread_sigmask unblocks signals correctly], [gl_cv_func_pthread_sigmask_unblock_works], [ case "$host_os" in irix*) gl_cv_func_pthread_sigmask_unblock_works="guessing no";; *) gl_cv_func_pthread_sigmask_unblock_works="guessing yes";; esac m4_ifdef([gl_][THREADLIB], [dnl Link against $LIBMULTITHREAD, not only $LIB_PTHREAD_SIGMASK. dnl Otherwise we get a false positive on those platforms where dnl $gl_cv_func_pthread_sigmask_in_libc_works is "no". gl_save_LIBS=$LIBS LIBS="$LIBS $LIBMULTITHREAD"]) AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include #include #include static volatile int sigint_occurred; static void sigint_handler (int sig) { sigint_occurred++; } int main () { sigset_t set; int pid = getpid (); char command[80]; signal (SIGINT, sigint_handler); sigemptyset (&set); sigaddset (&set, SIGINT); if (!(pthread_sigmask (SIG_BLOCK, &set, NULL) == 0)) return 1; sprintf (command, "sh -c 'sleep 1; kill -%d %d' &", SIGINT, pid); if (!(system (command) == 0)) return 2; sleep (2); if (!(sigint_occurred == 0)) return 3; if (!(pthread_sigmask (SIG_UNBLOCK, &set, NULL) == 0)) return 4; if (!(sigint_occurred == 1)) /* This fails on IRIX. */ return 5; return 0; }]])], [:], [gl_cv_func_pthread_sigmask_unblock_works=no], [:]) m4_ifdef([gl_][THREADLIB], [LIBS=$gl_save_LIBS]) ]) case "$gl_cv_func_pthread_sigmask_unblock_works" in *no) REPLACE_PTHREAD_SIGMASK=1 AC_DEFINE([PTHREAD_SIGMASK_UNBLOCK_BUG], [1], [Define to 1 if pthread_sigmask() unblocks signals incorrectly.]) ;; esac fi ]) # Prerequisite of lib/pthread_sigmask.c. AC_DEFUN([gl_PREREQ_PTHREAD_SIGMASK], [ if test $HAVE_PTHREAD_SIGMASK = 1; then AC_DEFINE([HAVE_PTHREAD_SIGMASK], [1], [Define to 1 if the pthread_sigmask function can be used (despite bugs).]) fi ]) # putenv.m4 serial 24 dnl Copyright (C) 2002-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Jim Meyering. dnl dnl Check whether putenv ("FOO") removes FOO from the environment. dnl The putenv in libc on at least SunOS 4.1.4 does *not* do that. AC_DEFUN([gl_FUNC_PUTENV], [ AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([for putenv compatible with GNU and SVID], [gl_cv_func_svid_putenv], [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],[[ /* Put it in env. */ if (putenv ("CONFTEST_putenv=val")) return 1; /* Try to remove it. */ if (putenv ("CONFTEST_putenv")) return 2; /* Make sure it was deleted. */ if (getenv ("CONFTEST_putenv") != 0) return 3; return 0; ]])], gl_cv_func_svid_putenv=yes, gl_cv_func_svid_putenv=no, dnl When crosscompiling, assume putenv is broken. [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_svid_putenv="guessing yes" ;; # Guess yes on musl systems. *-musl*) gl_cv_func_svid_putenv="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_func_svid_putenv="guessing no" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_svid_putenv="$gl_cross_guess_normal" ;; esac ]) ]) case "$gl_cv_func_svid_putenv" in *yes) ;; *) REPLACE_PUTENV=1 ;; esac ]) # Prerequisites of lib/putenv.c. AC_DEFUN([gl_PREREQ_PUTENV], [ AC_CHECK_DECLS([_putenv]) ]) # raise.m4 serial 4 dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_RAISE], [ AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_FUNCS([raise]) if test $ac_cv_func_raise = no; then HAVE_RAISE=0 else m4_ifdef([gl_MSVC_INVAL], [ AC_REQUIRE([gl_MSVC_INVAL]) if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then REPLACE_RAISE=1 fi ]) m4_ifdef([gl_SIGNALBLOCKING], [ gl_SIGNALBLOCKING if test $HAVE_POSIX_SIGNALBLOCKING = 0; then m4_ifdef([gl_SIGNAL_SIGPIPE], [ gl_SIGNAL_SIGPIPE if test $gl_cv_header_signal_h_SIGPIPE != yes; then REPLACE_RAISE=1 fi ], [:]) fi ]) fi ]) # Prerequisites of lib/raise.c. AC_DEFUN([gl_PREREQ_RAISE], [:]) # read-file.m4 serial 3 dnl Copyright (C) 2002-2006, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Prerequisites of lib/read-file.c. AC_DEFUN([gl_PREREQ_READ_FILE], [:]) # realloc.m4 serial 18 dnl Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # This is adapted with modifications from upstream Autoconf here: # https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c AC_DEFUN([_AC_FUNC_REALLOC_IF], [ AC_REQUIRE([AC_HEADER_STDC])dnl AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles AC_CHECK_HEADERS([stdlib.h]) AC_CACHE_CHECK([for GNU libc compatible realloc], [ac_cv_func_realloc_0_nonnull], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#if defined STDC_HEADERS || defined HAVE_STDLIB_H # include #else char *realloc (); #endif ]], [[char *p = realloc (0, 0); int result = !p; free (p); return result;]]) ], [ac_cv_func_realloc_0_nonnull=yes], [ac_cv_func_realloc_0_nonnull=no], [case "$host_os" in # Guess yes on platforms where we know the result. *-gnu* | gnu* | *-musl* | freebsd* | netbsd* | openbsd* \ | hpux* | solaris* | cygwin* | mingw*) ac_cv_func_realloc_0_nonnull="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) ac_cv_func_realloc_0_nonnull="$gl_cross_guess_normal" ;; esac ]) ]) case "$ac_cv_func_realloc_0_nonnull" in *yes) $1 ;; *) $2 ;; esac ])# AC_FUNC_REALLOC # gl_FUNC_REALLOC_GNU # ------------------- # Test whether 'realloc (0, 0)' is handled like in GNU libc, and replace # realloc if it is not. AC_DEFUN([gl_FUNC_REALLOC_GNU], [ AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) dnl _AC_FUNC_REALLOC_IF is defined in Autoconf. _AC_FUNC_REALLOC_IF( [AC_DEFINE([HAVE_REALLOC_GNU], [1], [Define to 1 if your system has a GNU libc compatible 'realloc' function, and to 0 otherwise.])], [AC_DEFINE([HAVE_REALLOC_GNU], [0]) REPLACE_REALLOC=1 ]) ])# gl_FUNC_REALLOC_GNU # gl_FUNC_REALLOC_POSIX # --------------------- # Test whether 'realloc' is POSIX compliant (sets errno to ENOMEM when it # fails), and replace realloc if it is not. AC_DEFUN([gl_FUNC_REALLOC_POSIX], [ AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) AC_REQUIRE([gl_CHECK_MALLOC_POSIX]) if test $gl_cv_func_malloc_posix = yes; then AC_DEFINE([HAVE_REALLOC_POSIX], [1], [Define if the 'realloc' function is POSIX compliant.]) else REPLACE_REALLOC=1 fi ]) # sched_h.m4 serial 12 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Bruno Haible. AC_DEFUN([gl_SCHED_H], [ dnl Use AC_REQUIRE here, so that the default behavior below is expanded dnl once only, before all statements that occur in other macros. AC_REQUIRE([gl_SCHED_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_HEADERS_ONCE([sys/cdefs.h]) AC_CHECK_HEADERS([sched.h], [], [], [[#if HAVE_SYS_CDEFS_H #include #endif ]]) gl_NEXT_HEADERS([sched.h]) if test "$ac_cv_header_sched_h" = yes; then HAVE_SCHED_H=1 else HAVE_SCHED_H=0 fi AC_SUBST([HAVE_SCHED_H]) if test "$HAVE_SCHED_H" = 1; then AC_CHECK_TYPE([struct sched_param], [HAVE_STRUCT_SCHED_PARAM=1], [HAVE_STRUCT_SCHED_PARAM=0], [[#if HAVE_SYS_CDEFS_H #include #endif #include ]]) else HAVE_STRUCT_SCHED_PARAM=0 case "$host_os" in os2*) dnl On OS/2 kLIBC, struct sched_param is in spawn.h. AC_CHECK_TYPE([struct sched_param], [HAVE_STRUCT_SCHED_PARAM=1], [], [#include ]) ;; vms) dnl On OpenVMS 7.2 or newer, struct sched_param is in pthread.h. AC_CHECK_TYPE([struct sched_param], [HAVE_STRUCT_SCHED_PARAM=1], [], [#include ]) ;; esac fi AC_SUBST([HAVE_STRUCT_SCHED_PARAM]) if test "$ac_cv_header_sys_cdefs_h" = yes; then HAVE_SYS_CDEFS_H=1 else HAVE_SYS_CDEFS_H=0 fi AC_SUBST([HAVE_SYS_CDEFS_H]) dnl Ensure the type pid_t gets defined. AC_REQUIRE([AC_TYPE_PID_T]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use, if it is not common dnl enough to be declared everywhere. gl_WARN_ON_USE_PREPARE([[#include ]], [sched_yield]) ]) AC_DEFUN([gl_SCHED_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_SCHED_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_SCHED_H_DEFAULTS], [ GNULIB_SCHED_YIELD=0; AC_SUBST([GNULIB_SCHED_YIELD]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_SCHED_YIELD=1; AC_SUBST([HAVE_SCHED_YIELD]) REPLACE_SCHED_YIELD=0; AC_SUBST([REPLACE_SCHED_YIELD]) ]) # Look up an environment variable more securely. dnl Copyright 2013-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_SECURE_GETENV], [ dnl Persuade glibc to declare secure_getenv(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([secure_getenv]) if test $ac_cv_func_secure_getenv = no; then HAVE_SECURE_GETENV=0 fi ]) # Prerequisites of lib/secure_getenv.c. AC_DEFUN([gl_PREREQ_SECURE_GETENV], [ AC_CHECK_FUNCS([__secure_getenv]) if test $ac_cv_func___secure_getenv = no; then AC_CHECK_FUNCS([issetugid]) fi AC_CHECK_FUNCS_ONCE([getuid geteuid getgid getegid]) ]) # select.m4 serial 11 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_SELECT], [ AC_REQUIRE([gl_HEADER_SYS_SELECT]) AC_REQUIRE([AC_C_RESTRICT]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_SOCKETS]) if test "$ac_cv_header_winsock2_h" = yes; then REPLACE_SELECT=1 else dnl On Interix 3.5, select(0, NULL, NULL, NULL, timeout) fails with error dnl EFAULT. AC_CHECK_HEADERS_ONCE([sys/select.h]) AC_CACHE_CHECK([whether select supports a 0 argument], [gl_cv_func_select_supports0], [ AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include #include #if HAVE_SYS_SELECT_H #include #endif int main () { struct timeval timeout; timeout.tv_sec = 0; timeout.tv_usec = 5; return select (0, (fd_set *)0, (fd_set *)0, (fd_set *)0, &timeout) < 0; }]])], [gl_cv_func_select_supports0=yes], [gl_cv_func_select_supports0=no], [ changequote(,)dnl case "$host_os" in # Guess no on Interix. interix*) gl_cv_func_select_supports0="guessing no";; # Guess yes otherwise. *) gl_cv_func_select_supports0="guessing yes";; esac changequote([,])dnl ]) ]) case "$gl_cv_func_select_supports0" in *yes) ;; *) REPLACE_SELECT=1 ;; esac dnl On FreeBSD 8.2, select() doesn't always reject bad fds. AC_CACHE_CHECK([whether select detects invalid fds], [gl_cv_func_select_detects_ebadf], [ AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #include #if HAVE_SYS_SELECT_H # include #endif #include #include ]],[[ fd_set set; dup2(0, 16); FD_ZERO(&set); FD_SET(16, &set); close(16); struct timeval timeout; timeout.tv_sec = 0; timeout.tv_usec = 5; return select (17, &set, NULL, NULL, &timeout) != -1 || errno != EBADF; ]])], [gl_cv_func_select_detects_ebadf=yes], [gl_cv_func_select_detects_ebadf=no], [ case "$host_os" in # Guess yes on Linux systems. linux-* | linux) gl_cv_func_select_detects_ebadf="guessing yes" ;; # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_select_detects_ebadf="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_select_detects_ebadf="$gl_cross_guess_normal" ;; esac ]) ]) case $gl_cv_func_select_detects_ebadf in *yes) ;; *) REPLACE_SELECT=1 ;; esac fi dnl Determine the needed libraries. LIB_SELECT="$LIBSOCKET" if test $REPLACE_SELECT = 1; then case "$host_os" in mingw*) dnl On the MSVC platform, the function MsgWaitForMultipleObjects dnl (used in lib/select.c) requires linking with -luser32. On mingw, dnl it is implicit. AC_LINK_IFELSE( [AC_LANG_SOURCE([[ #define WIN32_LEAN_AND_MEAN #include int main () { MsgWaitForMultipleObjects (0, NULL, 0, 0, 0); return 0; }]])], [], [LIB_SELECT="$LIB_SELECT -luser32"]) ;; esac fi AC_SUBST([LIB_SELECT]) ]) # setenv.m4 serial 29 dnl Copyright (C) 2001-2004, 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_SETENV], [ AC_REQUIRE([gl_FUNC_SETENV_SEPARATE]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles if test $ac_cv_func_setenv = no; then HAVE_SETENV=0 else AC_CACHE_CHECK([whether setenv validates arguments], [gl_cv_func_setenv_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #include #include ]], [[ int result = 0; { if (setenv ("", "", 0) != -1) result |= 1; else if (errno != EINVAL) result |= 2; } { if (setenv ("a", "=", 1) != 0) result |= 4; else if (strcmp (getenv ("a"), "=") != 0) result |= 8; } return result; ]])], [gl_cv_func_setenv_works=yes], [gl_cv_func_setenv_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_setenv_works="guessing yes" ;; # Guess yes on musl systems. *-musl*) gl_cv_func_setenv_works="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_setenv_works="$gl_cross_guess_normal" ;; esac ])]) case "$gl_cv_func_setenv_works" in *yes) ;; *) REPLACE_SETENV=1 ;; esac fi ]) # Like gl_FUNC_SETENV, except prepare for separate compilation # (no REPLACE_SETENV, no AC_LIBOBJ). AC_DEFUN([gl_FUNC_SETENV_SEPARATE], [ AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) AC_CHECK_DECLS_ONCE([setenv]) if test $ac_cv_have_decl_setenv = no; then HAVE_DECL_SETENV=0 fi AC_CHECK_FUNCS_ONCE([setenv]) gl_PREREQ_SETENV ]) AC_DEFUN([gl_FUNC_UNSETENV], [ AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_DECLS_ONCE([unsetenv]) if test $ac_cv_have_decl_unsetenv = no; then HAVE_DECL_UNSETENV=0 fi AC_CHECK_FUNCS([unsetenv]) if test $ac_cv_func_unsetenv = no; then HAVE_UNSETENV=0 else HAVE_UNSETENV=1 dnl Some BSDs return void, failing to do error checking. AC_CACHE_CHECK([for unsetenv() return type], [gt_cv_func_unsetenv_ret], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[ #undef _BSD #define _BSD 1 /* unhide unsetenv declaration in OSF/1 5.1 */ #include extern #ifdef __cplusplus "C" #endif int unsetenv (const char *name); ]], [[]])], [gt_cv_func_unsetenv_ret='int'], [gt_cv_func_unsetenv_ret='void'])]) if test $gt_cv_func_unsetenv_ret = 'void'; then AC_DEFINE([VOID_UNSETENV], [1], [Define to 1 if unsetenv returns void instead of int.]) REPLACE_UNSETENV=1 fi dnl Solaris 10 unsetenv does not remove all copies of a name. dnl Haiku alpha 2 unsetenv gets confused by assignment to environ. dnl OpenBSD 4.7 unsetenv("") does not fail. AC_CACHE_CHECK([whether unsetenv obeys POSIX], [gl_cv_func_unsetenv_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #include extern char **environ; ]], [[ char entry1[] = "a=1"; char entry2[] = "b=2"; char *env[] = { entry1, entry2, NULL }; if (putenv ((char *) "a=1")) return 1; if (putenv (entry2)) return 2; entry2[0] = 'a'; unsetenv ("a"); if (getenv ("a")) return 3; if (!unsetenv ("") || errno != EINVAL) return 4; entry2[0] = 'b'; environ = env; if (!getenv ("a")) return 5; entry2[0] = 'a'; unsetenv ("a"); if (getenv ("a")) return 6; ]])], [gl_cv_func_unsetenv_works=yes], [gl_cv_func_unsetenv_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu*) gl_cv_func_unsetenv_works="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_unsetenv_works="$gl_cross_guess_normal" ;; esac ])]) case "$gl_cv_func_unsetenv_works" in *yes) ;; *) REPLACE_UNSETENV=1 ;; esac fi ]) # Prerequisites of lib/setenv.c. AC_DEFUN([gl_PREREQ_SETENV], [ AC_REQUIRE([AC_FUNC_ALLOCA]) AC_REQUIRE([gl_ENVIRON]) AC_CHECK_HEADERS_ONCE([unistd.h]) AC_CHECK_HEADERS([search.h]) AC_CHECK_FUNCS([tsearch]) ]) # Prerequisites of lib/unsetenv.c. AC_DEFUN([gl_PREREQ_UNSETENV], [ AC_REQUIRE([gl_ENVIRON]) AC_CHECK_HEADERS_ONCE([unistd.h]) ]) # setlocale.m4 serial 7 dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_SETLOCALE], [ AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_SETLOCALE_NULL]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl Test whether we need to improve on the general working of setlocale. NEED_SETLOCALE_IMPROVED=0 case "$host_os" in dnl On native Windows systems, setlocale(category,NULL) does not look at dnl the environment variables LC_ALL, category, and LANG. mingw*) NEED_SETLOCALE_IMPROVED=1 ;; dnl On Cygwin 1.5.x, setlocale always succeeds but setlocale(LC_CTYPE,NULL) dnl is then still "C". cygwin*) case `uname -r` in 1.5.*) NEED_SETLOCALE_IMPROVED=1 ;; esac ;; dnl On Android 4.3, setlocale(category,"C") always fails. *) AC_CACHE_CHECK([whether setlocale supports the C locale], [gl_cv_func_setlocale_works], [AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include int main () { return setlocale (LC_ALL, "C") == NULL; }]])], [gl_cv_func_setlocale_works=yes], [gl_cv_func_setlocale_works=no], [case "$host_os" in # Guess no on Android. linux*-android*) gl_cv_func_setlocale_works="guessing no";; # Guess yes otherwise. *) gl_cv_func_setlocale_works="guessing yes";; esac ]) ]) case "$gl_cv_func_setlocale_works" in *yes) ;; *) NEED_SETLOCALE_IMPROVED=1 ;; esac ;; esac AC_DEFINE_UNQUOTED([NEED_SETLOCALE_IMPROVED], [$NEED_SETLOCALE_IMPROVED], [Define to 1 to enable general improvements of setlocale.]) dnl Test whether we need a multithread-safe setlocale(category,NULL). NEED_SETLOCALE_MTSAFE=0 if test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0; then NEED_SETLOCALE_MTSAFE=1 fi AC_DEFINE_UNQUOTED([NEED_SETLOCALE_MTSAFE], [$NEED_SETLOCALE_MTSAFE], [Define to 1 to enable a multithread-safety fix of setlocale.]) if test $NEED_SETLOCALE_IMPROVED = 1 || test $NEED_SETLOCALE_MTSAFE = 1; then REPLACE_SETLOCALE=1 fi if test $NEED_SETLOCALE_MTSAFE = 1; then LIB_SETLOCALE="$LIB_SETLOCALE_NULL" else LIB_SETLOCALE= fi dnl LIB_SETLOCALE is expected to be '-pthread' or '-lpthread' on AIX with gcc dnl or xlc, and empty otherwise. AC_SUBST([LIB_SETLOCALE]) ]) # Prerequisites of lib/setlocale.c. AC_DEFUN([gl_PREREQ_SETLOCALE], [ dnl No need to check for CFLocaleCopyPreferredLanguages and dnl CFPreferencesCopyAppValue because lib/setlocale.c is not used on Mac OS X. dnl (The Mac OS X specific code is only used in libintl.) : ]) # setlocale_null.m4 serial 2 dnl Copyright (C) 2019-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_SETLOCALE_NULL], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_PTHREADLIB]) AC_CHECK_HEADERS_ONCE([threads.h]) AC_CACHE_CHECK([whether setlocale (LC_ALL, NULL) is multithread-safe], [gl_cv_func_setlocale_null_all_mtsafe], [case "$host_os" in # Guess no on musl libc, macOS, FreeBSD, NetBSD, OpenBSD, AIX, Haiku, Cygwin. *-musl* | darwin* | freebsd* | netbsd* | openbsd* | aix* | haiku* | cygwin*) gl_cv_func_setlocale_null_all_mtsafe=no ;; # Guess yes on glibc, HP-UX, IRIX, Solaris, native Windows. *-gnu* | gnu* | hpux* | irix* | solaris* | mingw*) gl_cv_func_setlocale_null_all_mtsafe=yes ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_setlocale_null_all_mtsafe="$gl_cross_guess_normal" ;; esac ]) dnl On platforms without multithreading, there is no issue. case "$host_os" in mingw*) ;; *) if test $gl_pthread_api = no && test $ac_cv_header_threads_h = no; then gl_cv_func_setlocale_null_all_mtsafe="trivially yes" fi ;; esac case "$gl_cv_func_setlocale_null_all_mtsafe" in *yes) SETLOCALE_NULL_ALL_MTSAFE=1 ;; *) SETLOCALE_NULL_ALL_MTSAFE=0 ;; esac AC_DEFINE_UNQUOTED([SETLOCALE_NULL_ALL_MTSAFE], [$SETLOCALE_NULL_ALL_MTSAFE], [Define to 1 if setlocale (LC_ALL, NULL) is multithread-safe.]) dnl This is about a single category (not LC_ALL). AC_CACHE_CHECK([whether setlocale (category, NULL) is multithread-safe], [gl_cv_func_setlocale_null_one_mtsafe], [case "$host_os" in # Guess no on OpenBSD, AIX. openbsd* | aix*) gl_cv_func_setlocale_null_one_mtsafe=no ;; # Guess yes on glibc, musl libc, macOS, FreeBSD, NetBSD, HP-UX, IRIX, Solaris, Haiku, Cygwin, native Windows. *-gnu* | gnu* | *-musl* | darwin* | freebsd* | netbsd* | hpux* | irix* | solaris* | haiku* | cygwin* | mingw*) gl_cv_func_setlocale_null_one_mtsafe=yes ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_setlocale_null_one_mtsafe="$gl_cross_guess_normal" ;; esac ]) dnl On platforms without multithreading, there is no issue. case "$host_os" in mingw*) ;; *) if test $gl_pthread_api = no && test $ac_cv_header_threads_h = no; then gl_cv_func_setlocale_null_one_mtsafe="trivially yes" fi ;; esac case "$gl_cv_func_setlocale_null_one_mtsafe" in *yes) SETLOCALE_NULL_ONE_MTSAFE=1 ;; *) SETLOCALE_NULL_ONE_MTSAFE=0 ;; esac AC_DEFINE_UNQUOTED([SETLOCALE_NULL_ONE_MTSAFE], [$SETLOCALE_NULL_ONE_MTSAFE], [Define to 1 if setlocale (category, NULL) is multithread-safe.]) dnl Determine link dependencies of lib/setlocale_null.c and lib/setlocale-lock.c. if test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0; then case "$host_os" in mingw*) LIB_SETLOCALE_NULL= ;; *) gl_WEAK_SYMBOLS case "$gl_cv_have_weak" in *yes) LIB_SETLOCALE_NULL= ;; *) LIB_SETLOCALE_NULL="$LIBPTHREAD" ;; esac ;; esac else LIB_SETLOCALE_NULL= fi dnl LIB_SETLOCALE_NULL is expected to be '-pthread' or '-lpthread' on AIX dnl with gcc or xlc, and empty otherwise. AC_SUBST([LIB_SETLOCALE_NULL]) ]) # Prerequisites of lib/setlocale-lock.c. AC_DEFUN([gl_PREREQ_SETLOCALE_LOCK], [ gl_VISIBILITY ]) # sigaction.m4 serial 7 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Determine if sigaction interface is present. AC_DEFUN([gl_SIGACTION], [ AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([sigaction]) if test $ac_cv_func_sigaction = yes; then AC_CHECK_MEMBERS([struct sigaction.sa_sigaction], , , [[#include ]]) if test $ac_cv_member_struct_sigaction_sa_sigaction = no; then HAVE_STRUCT_SIGACTION_SA_SIGACTION=0 fi else HAVE_SIGACTION=0 fi ]) # Prerequisites of the part of lib/signal.in.h and of lib/sigaction.c. AC_DEFUN([gl_PREREQ_SIGACTION], [ AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) AC_REQUIRE([AC_C_RESTRICT]) AC_REQUIRE([AC_TYPE_UID_T]) AC_REQUIRE([gl_PREREQ_SIG_HANDLER_H]) AC_CHECK_FUNCS_ONCE([sigaltstack siginterrupt]) AC_CHECK_TYPES([siginfo_t], [], [], [[ #include ]]) if test $ac_cv_type_siginfo_t = no; then HAVE_SIGINFO_T=0 fi ]) # Prerequisites of lib/sig-handler.h. AC_DEFUN([gl_PREREQ_SIG_HANDLER_H], [:]) # signal_h.m4 serial 19 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_SIGNAL_H], [ AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T]) gl_NEXT_HEADERS([signal.h]) # AIX declares sig_atomic_t to already include volatile, and C89 compilers # then choke on 'volatile sig_atomic_t'. C99 requires that it compile. AC_CHECK_TYPE([volatile sig_atomic_t], [], [HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=0], [[ #include ]]) dnl Ensure the type pid_t gets defined. AC_REQUIRE([AC_TYPE_PID_T]) AC_REQUIRE([AC_TYPE_UID_T]) dnl Persuade glibc to define sighandler_t. AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CHECK_TYPE([sighandler_t], [], [HAVE_SIGHANDLER_T=0], [[ #include ]]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include ]], [pthread_sigmask sigaction sigaddset sigdelset sigemptyset sigfillset sigismember sigpending sigprocmask]) AC_REQUIRE([AC_C_RESTRICT]) ]) AC_DEFUN([gl_CHECK_TYPE_SIGSET_T], [ AC_CHECK_TYPES([sigset_t], [gl_cv_type_sigset_t=yes], [gl_cv_type_sigset_t=no], [[ #include /* Mingw defines sigset_t not in , but in . */ #include ]]) if test $gl_cv_type_sigset_t != yes; then HAVE_SIGSET_T=0 fi ]) AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_SIGNAL_H_DEFAULTS], [ GNULIB_PTHREAD_SIGMASK=0; AC_SUBST([GNULIB_PTHREAD_SIGMASK]) GNULIB_RAISE=0; AC_SUBST([GNULIB_RAISE]) GNULIB_SIGNAL_H_SIGPIPE=0; AC_SUBST([GNULIB_SIGNAL_H_SIGPIPE]) GNULIB_SIGPROCMASK=0; AC_SUBST([GNULIB_SIGPROCMASK]) GNULIB_SIGACTION=0; AC_SUBST([GNULIB_SIGACTION]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_POSIX_SIGNALBLOCKING=1; AC_SUBST([HAVE_POSIX_SIGNALBLOCKING]) HAVE_PTHREAD_SIGMASK=1; AC_SUBST([HAVE_PTHREAD_SIGMASK]) HAVE_RAISE=1; AC_SUBST([HAVE_RAISE]) HAVE_SIGSET_T=1; AC_SUBST([HAVE_SIGSET_T]) HAVE_SIGINFO_T=1; AC_SUBST([HAVE_SIGINFO_T]) HAVE_SIGACTION=1; AC_SUBST([HAVE_SIGACTION]) HAVE_STRUCT_SIGACTION_SA_SIGACTION=1; AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION]) HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1; AC_SUBST([HAVE_TYPE_VOLATILE_SIG_ATOMIC_T]) HAVE_SIGHANDLER_T=1; AC_SUBST([HAVE_SIGHANDLER_T]) REPLACE_PTHREAD_SIGMASK=0; AC_SUBST([REPLACE_PTHREAD_SIGMASK]) REPLACE_RAISE=0; AC_SUBST([REPLACE_RAISE]) ]) # signalblocking.m4 serial 14 dnl Copyright (C) 2001-2002, 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Determine available signal blocking primitives. Three different APIs exist: # 1) POSIX: sigemptyset, sigaddset, sigprocmask # 2) SYSV: sighold, sigrelse # 3) BSD: sigblock, sigsetmask # For simplicity, here we check only for the POSIX signal blocking. AC_DEFUN([gl_SIGNALBLOCKING], [ AC_REQUIRE([gl_SIGNAL_H_DEFAULTS]) AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T]) if test $gl_cv_type_sigset_t = yes; then AC_CHECK_FUNC([sigprocmask], [gl_cv_func_sigprocmask=1]) fi if test -z "$gl_cv_func_sigprocmask"; then HAVE_POSIX_SIGNALBLOCKING=0 fi ]) # Prerequisites of lib/sigprocmask.c. AC_DEFUN([gl_PREREQ_SIGPROCMASK], [:]) # size_max.m4 serial 11 dnl Copyright (C) 2003, 2005-2006, 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. AC_PREREQ([2.61]) AC_DEFUN([gl_SIZE_MAX], [ AC_CHECK_HEADERS([stdint.h]) dnl First test whether the system already has SIZE_MAX. AC_CACHE_CHECK([for SIZE_MAX], [gl_cv_size_max], [ gl_cv_size_max= AC_EGREP_CPP([Found it], [ #include #if HAVE_STDINT_H #include #endif #ifdef SIZE_MAX Found it #endif ], [gl_cv_size_max=yes]) if test -z "$gl_cv_size_max"; then dnl Define it ourselves. Here we assume that the type 'size_t' is not wider dnl than the type 'unsigned long'. Try hard to find a definition that can dnl be used in a preprocessor #if, i.e. doesn't contain a cast. AC_COMPUTE_INT([size_t_bits_minus_1], [sizeof (size_t) * CHAR_BIT - 1], [#include #include ], [size_t_bits_minus_1=]) AC_COMPUTE_INT([fits_in_uint], [sizeof (size_t) <= sizeof (unsigned int)], [#include ], [fits_in_uint=]) if test -n "$size_t_bits_minus_1" && test -n "$fits_in_uint"; then if test $fits_in_uint = 1; then dnl Even though SIZE_MAX fits in an unsigned int, it must be of type dnl 'unsigned long' if the type 'size_t' is the same as 'unsigned long'. AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include extern size_t foo; extern unsigned long foo; ]], [[]])], [fits_in_uint=0]) fi dnl We cannot use 'expr' to simplify this expression, because 'expr' dnl works only with 'long' integers in the host environment, while we dnl might be cross-compiling from a 32-bit platform to a 64-bit platform. if test $fits_in_uint = 1; then gl_cv_size_max="(((1U << $size_t_bits_minus_1) - 1) * 2 + 1)" else gl_cv_size_max="(((1UL << $size_t_bits_minus_1) - 1) * 2 + 1)" fi else dnl Shouldn't happen, but who knows... gl_cv_size_max='((size_t)~(size_t)0)' fi fi ]) if test "$gl_cv_size_max" != yes; then AC_DEFINE_UNQUOTED([SIZE_MAX], [$gl_cv_size_max], [Define as the maximum value of type 'size_t', if the system doesn't define it.]) fi dnl Don't redefine SIZE_MAX in config.h if config.h is re-included after dnl . Remember that the #undef in AH_VERBATIM gets replaced with dnl #define by AC_DEFINE_UNQUOTED. AH_VERBATIM([SIZE_MAX], [/* Define as the maximum value of type 'size_t', if the system doesn't define it. */ #ifndef SIZE_MAX # undef SIZE_MAX #endif]) ]) # sleep.m4 serial 11 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_SLEEP], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl We expect to see the declaration of sleep() in a header file. dnl Older versions of mingw have a sleep() function that is an alias to dnl _sleep() in MSVCRT. It has a different signature than POSIX sleep(): dnl it takes the number of milliseconds as argument and returns void. dnl mingw does not declare this function. AC_CHECK_DECLS([sleep], , , [[#include ]]) AC_CHECK_FUNCS_ONCE([sleep]) if test $ac_cv_have_decl_sleep != yes; then HAVE_SLEEP=0 else dnl Cygwin 1.5.x has a bug where sleep can't exceed 49.7 days. AC_CACHE_CHECK([for working sleep], [gl_cv_func_sleep_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #include #include static void handle_alarm (int sig) { if (sig != SIGALRM) _exit (2); } ]], [[ /* Failure to compile this test due to missing alarm is okay, since all such platforms (mingw) also lack sleep. */ unsigned int pentecost = 50 * 24 * 60 * 60; /* 50 days. */ unsigned int remaining; signal (SIGALRM, handle_alarm); alarm (1); remaining = sleep (pentecost); if (remaining > pentecost) return 3; if (remaining <= pentecost - 10) return 4; return 0; ]])], [gl_cv_func_sleep_works=yes], [gl_cv_func_sleep_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_sleep_works="guessing yes" ;; # Guess yes on musl systems. *-musl*) gl_cv_func_sleep_works="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_func_sleep_works="guessing no" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_sleep_works="$gl_cross_guess_normal" ;; esac ])]) case "$gl_cv_func_sleep_works" in *yes) ;; *) REPLACE_SLEEP=1 ;; esac fi ]) # snprintf.m4 serial 7 dnl Copyright (C) 2002-2004, 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Libintl 0.17 will replace snprintf only if it does not support %1$s, dnl but defers to any gnulib snprintf replacements. Therefore, gnulib dnl must guarantee that the decision for replacing snprintf is a superset dnl of the reasons checked by libintl. AC_DEFUN([gl_FUNC_SNPRINTF], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) gl_cv_func_snprintf_usable=no AC_CHECK_FUNCS([snprintf]) if test $ac_cv_func_snprintf = yes; then gl_SNPRINTF_SIZE1 case "$gl_cv_func_snprintf_size1" in *yes) gl_SNPRINTF_RETVAL_C99 case "$gl_cv_func_snprintf_retval_c99" in *yes) gl_PRINTF_POSITIONS case "$gl_cv_func_printf_positions" in *yes) gl_cv_func_snprintf_usable=yes ;; esac ;; esac ;; esac fi if test $gl_cv_func_snprintf_usable = no; then gl_REPLACE_SNPRINTF fi AC_CHECK_DECLS_ONCE([snprintf]) if test $ac_cv_have_decl_snprintf = no; then HAVE_DECL_SNPRINTF=0 fi ]) AC_DEFUN([gl_REPLACE_SNPRINTF], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_LIBOBJ([snprintf]) if test $ac_cv_func_snprintf = yes; then REPLACE_SNPRINTF=1 else AC_CHECK_DECLS_ONCE([snprintf]) if test $ac_cv_have_decl_snprintf = yes; then dnl If the function is declared but does not appear to exist, it may be dnl defined as an inline function. In order to avoid a conflict, we have dnl to define rpl_snprintf, not snprintf. REPLACE_SNPRINTF=1 fi fi gl_PREREQ_SNPRINTF ]) # Prerequisites of lib/snprintf.c. AC_DEFUN([gl_PREREQ_SNPRINTF], [:]) # socketlib.m4 serial 2 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl gl_SOCKETLIB dnl Determines the library to use for socket functions. dnl Sets and AC_SUBSTs LIBSOCKET. AC_DEFUN([gl_SOCKETLIB], [ gl_PREREQ_SYS_H_WINSOCK2 dnl for HAVE_WINSOCK2_H LIBSOCKET= if test $HAVE_WINSOCK2_H = 1; then dnl Native Windows API (not Cygwin). AC_CACHE_CHECK([if we need to call WSAStartup in winsock2.h and -lws2_32], [gl_cv_func_wsastartup], [ gl_save_LIBS="$LIBS" LIBS="$LIBS -lws2_32" AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #ifdef HAVE_WINSOCK2_H # include #endif]], [[ WORD wVersionRequested = MAKEWORD(1, 1); WSADATA wsaData; int err = WSAStartup(wVersionRequested, &wsaData); WSACleanup ();]])], gl_cv_func_wsastartup=yes, gl_cv_func_wsastartup=no) LIBS="$gl_save_LIBS" ]) if test "$gl_cv_func_wsastartup" = "yes"; then AC_DEFINE([WINDOWS_SOCKETS], [1], [Define if WSAStartup is needed.]) LIBSOCKET='-lws2_32' fi else dnl Unix API. dnl Solaris has most socket functions in libsocket. dnl Haiku has most socket functions in libnetwork. dnl BeOS has most socket functions in libnet. dnl On HP-UX, do NOT link with libxnet, because in 64-bit mode this would dnl break code (e.g. in libraries) that invokes accept(), getpeername(), dnl getsockname(), getsockopt(), or recvfrom() with a 32-bit addrlen. See dnl "man xopen_networking" for details. AC_CACHE_CHECK([for library containing setsockopt], [gl_cv_lib_socket], [ gl_cv_lib_socket= AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern #ifdef __cplusplus "C" #endif char setsockopt();]], [[setsockopt();]])], [], [gl_save_LIBS="$LIBS" LIBS="$gl_save_LIBS -lsocket" AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern #ifdef __cplusplus "C" #endif char setsockopt();]], [[setsockopt();]])], [gl_cv_lib_socket="-lsocket"]) if test -z "$gl_cv_lib_socket"; then LIBS="$gl_save_LIBS -lnetwork" AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern #ifdef __cplusplus "C" #endif char setsockopt();]], [[setsockopt();]])], [gl_cv_lib_socket="-lnetwork"]) if test -z "$gl_cv_lib_socket"; then LIBS="$gl_save_LIBS -lnet" AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern #ifdef __cplusplus "C" #endif char setsockopt();]], [[setsockopt();]])], [gl_cv_lib_socket="-lnet"]) fi fi LIBS="$gl_save_LIBS" ]) if test -z "$gl_cv_lib_socket"; then gl_cv_lib_socket="none needed" fi ]) if test "$gl_cv_lib_socket" != "none needed"; then LIBSOCKET="$gl_cv_lib_socket" fi fi AC_SUBST([LIBSOCKET]) ]) # sockets.m4 serial 7 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_SOCKETS], [ AC_REQUIRE([AC_C_INLINE]) AC_REQUIRE([gl_SOCKETLIB]) gl_PREREQ_SOCKETS ]) # Prerequisites of lib/sockets.c. AC_DEFUN([gl_PREREQ_SOCKETS], [ : ]) # socklen.m4 serial 11 dnl Copyright (C) 2005-2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Albert Chin, Windows fixes from Simon Josefsson. dnl Check for socklen_t: historically on BSD it is an int, and in dnl POSIX 1g it is a type of its own, but some platforms use different dnl types for the argument to getsockopt, getpeername, etc.: dnl HP-UX 10.20, IRIX 6.5, OSF/1 4.0, Interix 3.5, BeOS. dnl So we have to test to find something that will work. AC_DEFUN([gl_TYPE_SOCKLEN_T], [AC_REQUIRE([gl_CHECK_SOCKET_HEADERS])dnl AC_CHECK_TYPE([socklen_t], , [AC_CACHE_CHECK([for socklen_t equivalent], [gl_cv_socklen_t_equiv], [# Systems have either "struct sockaddr *" or # "void *" as the second argument to getpeername gl_cv_socklen_t_equiv= for arg2 in "struct sockaddr" void; do for t in int size_t "unsigned int" "long int" "unsigned long int"; do AC_COMPILE_IFELSE([AC_LANG_PROGRAM( [[#include #include int getpeername (int, $arg2 *, $t *);]], [[$t len; getpeername (0, 0, &len);]])], [gl_cv_socklen_t_equiv="$t"]) test "$gl_cv_socklen_t_equiv" != "" && break done test "$gl_cv_socklen_t_equiv" != "" && break done if test "$gl_cv_socklen_t_equiv" = ""; then AC_MSG_ERROR([Cannot find a type to use in place of socklen_t]) fi ]) AC_DEFINE_UNQUOTED([socklen_t], [$gl_cv_socklen_t_equiv], [type to use in place of socklen_t if not defined])], [gl_SOCKET_HEADERS])]) dnl On mingw32, socklen_t is in ws2tcpip.h ('int'), so we try to find dnl it there too. But on Cygwin, wc2tcpip.h must not be included. Users dnl of this module should use the same include pattern as gl_SOCKET_HEADERS. dnl When you change this macro, keep also in sync: dnl - gl_CHECK_SOCKET_HEADERS, dnl - the Include section of modules/socklen. AC_DEFUN([gl_SOCKET_HEADERS], [ /* is not needed according to POSIX, but the in i386-unknown-freebsd4.10 and powerpc-apple-darwin5.5 required it. */ #include #if HAVE_SYS_SOCKET_H # include #elif HAVE_WS2TCPIP_H # include #endif ]) dnl Tests for the existence of the header for socket facilities. dnl Defines the C macros HAVE_SYS_SOCKET_H, HAVE_WS2TCPIP_H. dnl This macro must match gl_SOCKET_HEADERS. AC_DEFUN([gl_CHECK_SOCKET_HEADERS], [AC_CHECK_HEADERS_ONCE([sys/socket.h]) if test $ac_cv_header_sys_socket_h = no; then dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make dnl the check for those headers unconditional; yet cygwin reports dnl that the headers are present but cannot be compiled (since on dnl cygwin, all socket information should come from sys/socket.h). AC_CHECK_HEADERS([ws2tcpip.h]) fi ]) # sockpfaf.m4 serial 9 dnl Copyright (C) 2004, 2006, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Test for some common socket protocol families (PF_INET, PF_INET6, ...) dnl and some common address families (AF_INET, AF_INET6, ...). dnl This test assumes that a system supports an address family if and only if dnl it supports the corresponding protocol family. dnl From Bruno Haible. AC_DEFUN([gl_SOCKET_FAMILIES], [ AC_REQUIRE([gl_HEADER_SYS_SOCKET]) AC_CHECK_HEADERS_ONCE([netinet/in.h]) AC_CACHE_CHECK([for IPv4 sockets], [gl_cv_socket_ipv4], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_WINSOCK2_H #include #endif]], [[int x = AF_INET; struct in_addr y; struct sockaddr_in z; if (&x && &y && &z) return 0;]])], gl_cv_socket_ipv4=yes, gl_cv_socket_ipv4=no)]) if test $gl_cv_socket_ipv4 = yes; then AC_DEFINE([HAVE_IPV4], [1], [Define to 1 if defines AF_INET.]) fi AC_CACHE_CHECK([for IPv6 sockets], [gl_cv_socket_ipv6], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_WINSOCK2_H #include #endif #ifdef HAVE_WS2TCPIP_H #include #endif]], [[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z; if (&x && &y && &z) return 0;]])], gl_cv_socket_ipv6=yes, gl_cv_socket_ipv6=no)]) if test $gl_cv_socket_ipv6 = yes; then AC_DEFINE([HAVE_IPV6], [1], [Define to 1 if defines AF_INET6.]) fi ]) AC_DEFUN([gl_SOCKET_FAMILY_UNIX], [ AC_REQUIRE([gl_HEADER_SYS_SOCKET]) AC_CHECK_HEADERS_ONCE([sys/un.h]) AC_CACHE_CHECK([for UNIX domain sockets], [gl_cv_socket_unix], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_SYS_UN_H #include #endif #ifdef HAVE_WINSOCK2_H #include #endif]], [[int x = AF_UNIX; struct sockaddr_un y; if (&x && &y) return 0;]])], gl_cv_socket_unix=yes, gl_cv_socket_unix=no)]) if test $gl_cv_socket_unix = yes; then AC_DEFINE([HAVE_UNIXSOCKET], [1], [Define to 1 if defines AF_UNIX.]) fi ]) # ssize_t.m4 serial 5 (gettext-0.18.2) dnl Copyright (C) 2001-2003, 2006, 2010-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl Test whether ssize_t is defined. AC_DEFUN([gt_TYPE_SSIZE_T], [ AC_CACHE_CHECK([for ssize_t], [gt_cv_ssize_t], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[int x = sizeof (ssize_t *) + sizeof (ssize_t); return !x;]])], [gt_cv_ssize_t=yes], [gt_cv_ssize_t=no])]) if test $gt_cv_ssize_t = no; then AC_DEFINE([ssize_t], [int], [Define as a signed type of the same size as size_t.]) fi ]) # Checks for stat-related time functions. # Copyright (C) 1998-1999, 2001, 2003, 2005-2007, 2009-2020 Free Software # Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. dnl From Paul Eggert. # st_atim.tv_nsec - Linux, Solaris, Cygwin # st_atimespec.tv_nsec - FreeBSD, NetBSD, if ! defined _POSIX_SOURCE # st_atimensec - FreeBSD, NetBSD, if defined _POSIX_SOURCE # st_atim.st__tim.tv_nsec - UnixWare (at least 2.1.2 through 7.1) # st_birthtimespec - FreeBSD, NetBSD (hidden on OpenBSD 3.9, anyway) # st_birthtim - Cygwin 1.7.0+ AC_DEFUN([gl_STAT_TIME], [ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_HEADERS_ONCE([sys/time.h]) AC_CHECK_MEMBERS([struct stat.st_atim.tv_nsec], [AC_CACHE_CHECK([whether struct stat.st_atim is of type struct timespec], [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( [[ #include #include #if HAVE_SYS_TIME_H # include #endif #include struct timespec ts; struct stat st; ]], [[ st.st_atim = ts; ]])], [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=yes], [ac_cv_typeof_struct_stat_st_atim_is_struct_timespec=no])]) if test $ac_cv_typeof_struct_stat_st_atim_is_struct_timespec = yes; then AC_DEFINE([TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC], [1], [Define to 1 if the type of the st_atim member of a struct stat is struct timespec.]) fi], [AC_CHECK_MEMBERS([struct stat.st_atimespec.tv_nsec], [], [AC_CHECK_MEMBERS([struct stat.st_atimensec], [], [AC_CHECK_MEMBERS([struct stat.st_atim.st__tim.tv_nsec], [], [], [#include #include ])], [#include #include ])], [#include #include ])], [#include #include ]) ]) # Check for st_birthtime, a feature from UFS2 (FreeBSD, NetBSD, OpenBSD, etc.) # and NTFS (Cygwin). # There was a time when this field was named st_createtime (21 June # 2002 to 16 July 2002) But that window is very small and applied only # to development code, so systems still using that configuration are # not supported. See revisions 1.10 and 1.11 of FreeBSD's # src/sys/ufs/ufs/dinode.h. # AC_DEFUN([gl_STAT_BIRTHTIME], [ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_HEADERS_ONCE([sys/time.h]) AC_CHECK_MEMBERS([struct stat.st_birthtimespec.tv_nsec], [], [AC_CHECK_MEMBERS([struct stat.st_birthtimensec], [], [AC_CHECK_MEMBERS([struct stat.st_birthtim.tv_nsec], [], [], [#include #include ])], [#include #include ])], [#include #include ]) ]) # serial 16 # Copyright (C) 2009-2020 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STAT], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([lstat]) case "$host_os" in mingw*) dnl On this platform, the original stat() returns st_atime, st_mtime, dnl st_ctime values that are affected by the time zone. REPLACE_STAT=1 ;; *) dnl AIX 7.1, Solaris 9, mingw64 mistakenly succeed on stat("file/"). dnl (For mingw, this is due to a broken stat() override in libmingwex.a.) dnl FreeBSD 7.2 mistakenly succeeds on stat("link-to-file/"). AC_CACHE_CHECK([whether stat handles trailing slashes on files], [gl_cv_func_stat_file_slash], [touch conftest.tmp # Assume that if we have lstat, we can also check symlinks. if test $ac_cv_func_lstat = yes; then ln -s conftest.tmp conftest.lnk fi AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[int result = 0; struct stat st; if (!stat ("conftest.tmp/", &st)) result |= 1; #if HAVE_LSTAT if (!stat ("conftest.lnk/", &st)) result |= 2; #endif return result; ]])], [gl_cv_func_stat_file_slash=yes], [gl_cv_func_stat_file_slash=no], [case "$host_os" in # Guess yes on Linux systems. linux-* | linux) gl_cv_func_stat_file_slash="guessing yes" ;; # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_stat_file_slash="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_stat_file_slash="$gl_cross_guess_normal" ;; esac ]) rm -f conftest.tmp conftest.lnk]) case $gl_cv_func_stat_file_slash in *no) REPLACE_STAT=1 AC_DEFINE([REPLACE_FUNC_STAT_FILE], [1], [Define to 1 if stat needs help when passed a file name with a trailing slash]);; esac case $host_os in dnl Solaris stat can return a negative tv_nsec. solaris*) REPLACE_FSTAT=1 ;; esac ;; esac ]) # Prerequisites of lib/stat.c and lib/stat-w32.c. AC_DEFUN([gl_PREREQ_STAT], [ AC_REQUIRE([gl_HEADER_SYS_STAT_H]) : ]) # Prefer GNU C11 and C++11 to earlier versions. -*- coding: utf-8 -*- # This implementation is taken from GNU Autoconf lib/autoconf/c.m4 # commit 017d5ddd82854911f0119691d91ea8a1438824d6 # dated Sun Apr 3 13:57:17 2016 -0700 # This implementation will be obsolete once we can assume Autoconf 2.70 # or later is installed everywhere a Gnulib program might be developed. # Copyright (C) 2001-2020 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # Written by David MacKenzie, with help from # Akim Demaille, Paul Eggert, # François Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, # Roland McGrath, Noah Friedman, david d zuhn, and many others. # AC_PROG_CC([COMPILER ...]) # -------------------------- # COMPILER ... is a space separated list of C compilers to search for. # This just gives the user an opportunity to specify an alternative # search list for the C compiler. AC_DEFUN_ONCE([AC_PROG_CC], [AC_LANG_PUSH(C)dnl AC_ARG_VAR([CC], [C compiler command])dnl AC_ARG_VAR([CFLAGS], [C compiler flags])dnl _AC_ARG_VAR_LDFLAGS()dnl _AC_ARG_VAR_LIBS()dnl _AC_ARG_VAR_CPPFLAGS()dnl m4_ifval([$1], [AC_CHECK_TOOLS(CC, [$1])], [AC_CHECK_TOOL(CC, gcc) if test -z "$CC"; then dnl Here we want: dnl AC_CHECK_TOOL(CC, cc) dnl but without the check for a tool without the prefix. dnl Until the check is removed from there, copy the code: if test -n "$ac_tool_prefix"; then AC_CHECK_PROG(CC, [${ac_tool_prefix}cc], [${ac_tool_prefix}cc]) fi fi if test -z "$CC"; then AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) fi if test -z "$CC"; then AC_CHECK_TOOLS(CC, cl.exe) fi if test -z "$CC"; then AC_CHECK_TOOL(CC, clang) fi ]) test -z "$CC" && AC_MSG_FAILURE([no acceptable C compiler found in \$PATH]) # Provide some information about the compiler. _AS_ECHO_LOG([checking for _AC_LANG compiler version]) set X $ac_compile ac_compiler=$[2] for ac_option in --version -v -V -qversion -version; do m4_ifdef([_AC_DO_LIMIT],[_AC_DO_LIMIT],[_AC_DO])([$ac_compiler $ac_option >&AS_MESSAGE_LOG_FD]) done m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl _AC_LANG_COMPILER_GNU if test $ac_compiler_gnu = yes; then GCC=yes else GCC= fi _AC_PROG_CC_G dnl dnl Set ac_prog_cc_stdc to the supported C version. dnl Also set the documented variable ac_cv_prog_cc_stdc; dnl its name was chosen when it was cached, but it is no longer cached. _AC_PROG_CC_C11([ac_prog_cc_stdc=c11 ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c11], [_AC_PROG_CC_C99([ac_prog_cc_stdc=c99 ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99], [_AC_PROG_CC_C89([ac_prog_cc_stdc=c89 ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89], [ac_prog_cc_stdc=no ac_cv_prog_cc_stdc=no])])]) dnl AC_LANG_POP(C)dnl ])# AC_PROG_CC # AC_PROG_CXX([LIST-OF-COMPILERS]) # -------------------------------- # LIST-OF-COMPILERS is a space separated list of C++ compilers to search # for (if not specified, a default list is used). This just gives the # user an opportunity to specify an alternative search list for the C++ # compiler. # aCC HP-UX C++ compiler much better than `CC', so test before. # FCC Fujitsu C++ compiler # KCC KAI C++ compiler # RCC Rational C++ # xlC_r AIX C Set++ (with support for reentrant code) # xlC AIX C Set++ AC_DEFUN([AC_PROG_CXX], [AC_LANG_PUSH(C++)dnl AC_ARG_VAR([CXX], [C++ compiler command])dnl AC_ARG_VAR([CXXFLAGS], [C++ compiler flags])dnl _AC_ARG_VAR_LDFLAGS()dnl _AC_ARG_VAR_LIBS()dnl _AC_ARG_VAR_CPPFLAGS()dnl _AC_ARG_VAR_PRECIOUS([CCC])dnl if test -z "$CXX"; then if test -n "$CCC"; then CXX=$CCC else AC_CHECK_TOOLS(CXX, [m4_default([$1], [g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC clang++])], g++) fi fi # Provide some information about the compiler. _AS_ECHO_LOG([checking for _AC_LANG compiler version]) set X $ac_compile ac_compiler=$[2] for ac_option in --version -v -V -qversion; do m4_ifdef([_AC_DO_LIMIT],[_AC_DO_LIMIT],[_AC_DO])([$ac_compiler $ac_option >&AS_MESSAGE_LOG_FD]) done m4_expand_once([_AC_COMPILER_EXEEXT])[]dnl m4_expand_once([_AC_COMPILER_OBJEXT])[]dnl _AC_LANG_COMPILER_GNU if test $ac_compiler_gnu = yes; then GXX=yes else GXX= fi _AC_PROG_CXX_G _AC_PROG_CXX_CXX11([ac_prog_cxx_stdcxx=cxx11 ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx11 ac_cv_prog_cxx_cxx98=$ac_cv_prog_cxx_cxx11], [_AC_PROG_CXX_CXX98([ac_prog_cxx_stdcxx=cxx98 ac_cv_prog_cxx_stdcxx=$ac_cv_prog_cxx_cxx98], [ac_prog_cxx_stdcxx=no ac_cv_prog_cxx_stdcxx=no])]) AC_LANG_POP(C++)dnl ])# AC_PROG_CXX # _AC_C_STD_TRY(STANDARD, TEST-PROLOGUE, TEST-BODY, OPTION-LIST, # ACTION-IF-AVAILABLE, ACTION-IF-UNAVAILABLE) # -------------------------------------------------------------- # Check whether the C compiler accepts features of STANDARD (e.g `c89', `c99') # by trying to compile a program of TEST-PROLOGUE and TEST-BODY. If this fails, # try again with each compiler option in the space-separated OPTION-LIST; if one # helps, append it to CC. If eventually successful, run ACTION-IF-AVAILABLE, # else ACTION-IF-UNAVAILABLE. AC_DEFUN([_AC_C_STD_TRY], [AC_MSG_CHECKING([for $CC option to enable ]m4_translit($1, [c], [C])[ features]) AC_CACHE_VAL(ac_cv_prog_cc_$1, [ac_cv_prog_cc_$1=no ac_save_CC=$CC AC_LANG_CONFTEST([AC_LANG_PROGRAM([$2], [$3])]) for ac_arg in '' $4 do CC="$ac_save_CC $ac_arg" _AC_COMPILE_IFELSE([], [ac_cv_prog_cc_$1=$ac_arg]) test "x$ac_cv_prog_cc_$1" != "xno" && break done rm -f conftest.$ac_ext CC=$ac_save_CC ])# AC_CACHE_VAL ac_prog_cc_stdc_options= case "x$ac_cv_prog_cc_$1" in x) AC_MSG_RESULT([none needed]) ;; xno) AC_MSG_RESULT([unsupported]) ;; *) ac_prog_cc_stdc_options=" $ac_cv_prog_cc_$1" CC=$CC$ac_prog_cc_stdc_options AC_MSG_RESULT([$ac_cv_prog_cc_$1]) ;; esac AS_IF([test "x$ac_cv_prog_cc_$1" != xno], [$5], [$6]) ])# _AC_C_STD_TRY # _AC_C_C99_TEST_HEADER # --------------------- # A C header suitable for testing for C99. AC_DEFUN([_AC_C_C99_TEST_HEADER], [[#include #include #include #include #include #include // Check varargs macros. These examples are taken from C99 6.10.3.5. #define debug(...) fprintf (stderr, __VA_ARGS__) #define showlist(...) puts (#__VA_ARGS__) #define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__)) static void test_varargs_macros (void) { int x = 1234; int y = 5678; debug ("Flag"); debug ("X = %d\n", x); showlist (The first, second, and third items.); report (x>y, "x is %d but y is %d", x, y); } // Check long long types. #define BIG64 18446744073709551615ull #define BIG32 4294967295ul #define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0) #if !BIG_OK your preprocessor is broken; #endif #if BIG_OK #else your preprocessor is broken; #endif static long long int bignum = -9223372036854775807LL; static unsigned long long int ubignum = BIG64; struct incomplete_array { int datasize; double data[]; }; struct named_init { int number; const wchar_t *name; double average; }; typedef const char *ccp; static inline int test_restrict (ccp restrict text) { // See if C++-style comments work. // Iterate through items via the restricted pointer. // Also check for declarations in for loops. for (unsigned int i = 0; *(text+i) != '\0'; ++i) continue; return 0; } // Check varargs and va_copy. static bool test_varargs (const char *format, ...) { va_list args; va_start (args, format); va_list args_copy; va_copy (args_copy, args); const char *str = ""; int number = 0; float fnumber = 0; while (*format) { switch (*format++) { case 's': // string str = va_arg (args_copy, const char *); break; case 'd': // int number = va_arg (args_copy, int); break; case 'f': // float fnumber = va_arg (args_copy, double); break; default: break; } } va_end (args_copy); va_end (args); return *str && number && fnumber; }]])# _AC_C_C99_TEST_HEADER # _AC_C_C99_TEST_BODY # ------------------- # A C body suitable for testing for C99, assuming the corresponding header. AC_DEFUN([_AC_C_C99_TEST_BODY], [[ // Check bool. _Bool success = false; // Check restrict. if (test_restrict ("String literal") == 0) success = true; char *restrict newvar = "Another string"; // Check varargs. success &= test_varargs ("s, d' f .", "string", 65, 34.234); test_varargs_macros (); // Check flexible array members. struct incomplete_array *ia = malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10)); ia->datasize = 10; for (int i = 0; i < ia->datasize; ++i) ia->data[i] = i * 1.234; // Check named initializers. struct named_init ni = { .number = 34, .name = L"Test wide string", .average = 543.34343, }; ni.number = 58; int dynamic_array[ni.number]; dynamic_array[ni.number - 1] = 543; // work around unused variable warnings return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x' || dynamic_array[ni.number - 1] != 543); ]]) # _AC_PROG_CC_C99 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE]) # ---------------------------------------------------------------- # If the C compiler is not in ISO C99 mode by default, try to add an # option to output variable CC to make it so. This macro tries # various options that select ISO C99 on some system or another. It # considers the compiler to be in ISO C99 mode if it handles _Bool, # // comments, flexible array members, inline, long long int, mixed # code and declarations, named initialization of structs, restrict, # va_copy, varargs macros, variable declarations in for loops and # variable length arrays. AC_DEFUN([_AC_PROG_CC_C99], [_AC_C_STD_TRY([c99], [_AC_C_C99_TEST_HEADER], [_AC_C_C99_TEST_BODY], dnl Try dnl GCC -std=gnu99 (unused restrictive modes: -std=c99 -std=iso9899:1999) dnl IBM XL C -qlanglvl=extc1x (V12.1; does not pass C11 test) dnl IBM XL C -qlanglvl=extc99 dnl (pre-V12.1; unused restrictive mode: -qlanglvl=stdc99) dnl HP cc -AC99 dnl Intel ICC -std=c99, -c99 (deprecated) dnl IRIX -c99 dnl Solaris -D_STDC_C99= dnl cc's -xc99 option uses linker magic to define the external dnl symbol __xpg4 as if by "int __xpg4 = 1;", which enables C99 dnl behavior for C library functions. This is not wanted here, dnl because it means that a single module compiled with -xc99 dnl alters C runtime behavior for the entire program, not for dnl just the module. Instead, define the (private) symbol dnl _STDC_C99, which suppresses a bogus failure in . dnl The resulting compiler passes the test case here, and that's dnl good enough. For more, please see the thread starting at: dnl https://lists.gnu.org/r/autoconf/2010-12/msg00059.html dnl Tru64 -c99 dnl with extended modes being tried first. [[-std=gnu99 -std=c99 -c99 -AC99 -D_STDC_C99= -qlanglvl=extc1x -qlanglvl=extc99]], [$1], [$2])[]dnl ])# _AC_PROG_CC_C99 # _AC_PROG_CC_C11 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE]) # ---------------------------------------------------------------- # If the C compiler is not in ISO C11 mode by default, try to add an # option to output variable CC to make it so. This macro tries # various options that select ISO C11 on some system or another. It # considers the compiler to be in ISO C11 mode if it handles _Alignas, # _Alignof, _Noreturn, _Static_assert, UTF-8 string literals, # duplicate typedefs, and anonymous structures and unions. AC_DEFUN([_AC_PROG_CC_C11], [_AC_C_STD_TRY([c11], [_AC_C_C99_TEST_HEADER[ // Check _Alignas. char _Alignas (double) aligned_as_double; char _Alignas (0) no_special_alignment; extern char aligned_as_int; char _Alignas (0) _Alignas (int) aligned_as_int; // Check _Alignof. enum { int_alignment = _Alignof (int), int_array_alignment = _Alignof (int[100]), char_alignment = _Alignof (char) }; _Static_assert (0 < -_Alignof (int), "_Alignof is signed"); // Check _Noreturn. int _Noreturn does_not_return (void) { for (;;) continue; } // Check _Static_assert. struct test_static_assert { int x; _Static_assert (sizeof (int) <= sizeof (long int), "_Static_assert does not work in struct"); long int y; }; // Check UTF-8 literals. #define u8 syntax error! char const utf8_literal[] = u8"happens to be ASCII" "another string"; // Check duplicate typedefs. typedef long *long_ptr; typedef long int *long_ptr; typedef long_ptr long_ptr; // Anonymous structures and unions -- taken from C11 6.7.2.1 Example 1. struct anonymous { union { struct { int i; int j; }; struct { int k; long int l; } w; }; int m; } v1; ]], [_AC_C_C99_TEST_BODY[ v1.i = 2; v1.w.k = 5; _Static_assert ((offsetof (struct anonymous, i) == offsetof (struct anonymous, w.k)), "Anonymous union alignment botch"); ]], dnl Try dnl GCC -std=gnu11 (unused restrictive mode: -std=c11) dnl with extended modes being tried first. dnl dnl Do not try -qlanglvl=extc1x, because IBM XL C V12.1 (the latest version as dnl of September 2012) does not pass the C11 test. For now, try extc1x when dnl compiling the C99 test instead, since it enables _Static_assert and dnl _Noreturn, which is a win. If -qlanglvl=extc11 or -qlanglvl=extc1x passes dnl the C11 test in some future version of IBM XL C, we'll add it here, dnl preferably extc11. [[-std=gnu11]], [$1], [$2])[]dnl ])# _AC_PROG_CC_C11 # AC_PROG_CC_C89 # -------------- # Do not use AU_ALIAS here and in AC_PROG_CC_C99 and AC_PROG_CC_STDC, # as that'd be incompatible with how Automake redefines AC_PROG_CC. See # . AU_DEFUN([AC_PROG_CC_C89], [AC_REQUIRE([AC_PROG_CC])], [$0 is obsolete; use AC_PROG_CC] ) # AC_PROG_CC_C99 # -------------- AU_DEFUN([AC_PROG_CC_C99], [AC_REQUIRE([AC_PROG_CC])], [$0 is obsolete; use AC_PROG_CC] ) # AC_PROG_CC_STDC # --------------- AU_DEFUN([AC_PROG_CC_STDC], [AC_REQUIRE([AC_PROG_CC])], [$0 is obsolete; use AC_PROG_CC] ) # AC_C_PROTOTYPES # --------------- # Check if the C compiler supports prototypes, included if it needs # options. AC_DEFUN([AC_C_PROTOTYPES], [AC_REQUIRE([AC_PROG_CC])dnl if test "$ac_prog_cc_stdc" != no; then AC_DEFINE(PROTOTYPES, 1, [Define to 1 if the C compiler supports function prototypes.]) AC_DEFINE(__PROTOTYPES, 1, [Define like PROTOTYPES; this can be used by system headers.]) fi ])# AC_C_PROTOTYPES # _AC_CXX_STD_TRY(STANDARD, TEST-PROLOGUE, TEST-BODY, OPTION-LIST, # ACTION-IF-AVAILABLE, ACTION-IF-UNAVAILABLE) # ---------------------------------------------------------------- # Check whether the C++ compiler accepts features of STANDARD (e.g # `cxx98', `cxx11') by trying to compile a program of TEST-PROLOGUE # and TEST-BODY. If this fails, try again with each compiler option # in the space-separated OPTION-LIST; if one helps, append it to CXX. # If eventually successful, run ACTION-IF-AVAILABLE, else # ACTION-IF-UNAVAILABLE. AC_DEFUN([_AC_CXX_STD_TRY], [AC_MSG_CHECKING([for $CXX option to enable ]m4_translit(m4_translit($1, [x], [+]), [a-z], [A-Z])[ features]) AC_LANG_PUSH(C++)dnl AC_CACHE_VAL(ac_cv_prog_cxx_$1, [ac_cv_prog_cxx_$1=no ac_save_CXX=$CXX AC_LANG_CONFTEST([AC_LANG_PROGRAM([$2], [$3])]) for ac_arg in '' $4 do CXX="$ac_save_CXX $ac_arg" _AC_COMPILE_IFELSE([], [ac_cv_prog_cxx_$1=$ac_arg]) test "x$ac_cv_prog_cxx_$1" != "xno" && break done rm -f conftest.$ac_ext CXX=$ac_save_CXX ])# AC_CACHE_VAL ac_prog_cxx_stdcxx_options= case "x$ac_cv_prog_cxx_$1" in x) AC_MSG_RESULT([none needed]) ;; xno) AC_MSG_RESULT([unsupported]) ;; *) ac_prog_cxx_stdcxx_options=" $ac_cv_prog_cxx_$1" CXX=$CXX$ac_prog_cxx_stdcxx_options AC_MSG_RESULT([$ac_cv_prog_cxx_$1]) ;; esac AC_LANG_POP(C++)dnl AS_IF([test "x$ac_cv_prog_cxx_$1" != xno], [$5], [$6]) ])# _AC_CXX_STD_TRY # _AC_CXX_CXX98_TEST_HEADER # ------------------------- # A C++ header suitable for testing for CXX98. AC_DEFUN([_AC_CXX_CXX98_TEST_HEADER], [[ #include #include #include #include #include #include #include #include #include #include #include #include #include namespace test { typedef std::vector string_vec; typedef std::pair map_value; typedef std::map map_type; typedef std::set set_type; template class printer { public: printer(std::ostringstream& os): os(os) {} void operator() (T elem) { os << elem << std::endl; } private: std::ostringstream& os; }; } ]])# _AC_CXX_CXX98_TEST_HEADER # _AC_CXX_CXX98_TEST_BODY # ----------------------- # A C++ body suitable for testing for CXX98, assuming the corresponding header. AC_DEFUN([_AC_CXX_CXX98_TEST_BODY], [[ try { // Basic string. std::string teststr("ASCII text"); teststr += " string"; // Simple vector. test::string_vec testvec; testvec.push_back(teststr); testvec.push_back("foo"); testvec.push_back("bar"); if (testvec.size() != 3) { throw std::runtime_error("vector size is not 1"); } // Dump vector into stringstream and obtain string. std::ostringstream os; for (test::string_vec::const_iterator i = testvec.begin(); i != testvec.end(); ++i) { if (i + 1 != testvec.end()) { os << teststr << '\n'; } } // Check algorithms work. std::for_each(testvec.begin(), testvec.end(), test::printer(os)); std::string os_out = os.str(); // Test pair and map. test::map_type testmap; testmap.insert(std::make_pair(std::string("key"), std::make_pair(53,false))); // Test set. int values[] = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3, 14, 19, 17, 8, 6, 20, 16, 2, 11, 1}; test::set_type testset(values, values + sizeof(values)/sizeof(values[0])); std::list testlist(testset.begin(), testset.end()); std::copy(testset.begin(), testset.end(), std::back_inserter(testlist)); } catch (const std::exception& e) { std::cerr << "Caught exception: " << e.what() << std::endl; // Test fstream std::ofstream of("test.txt"); of << "Test ASCII text\n" << std::flush; of << "N= " << std::hex << std::setw(8) << std::left << 534 << std::endl; of.close(); } std::exit(0); ]]) # _AC_CXX_CXX11_TEST_HEADER # ------------------------- # A C++ header suitable for testing for CXX11. AC_DEFUN([_AC_CXX_CXX11_TEST_HEADER], [[ #include #include #include #include #include #include #include namespace cxx11test { typedef std::shared_ptr sptr; typedef std::weak_ptr wptr; typedef std::tuple tp; typedef std::array int_array; constexpr int get_val() { return 20; } struct testinit { int i; double d; }; class delegate { public: delegate(int n) : n(n) {} delegate(): delegate(2354) {} virtual int getval() { return this->n; }; protected: int n; }; class overridden : public delegate { public: overridden(int n): delegate(n) {} virtual int getval() override final { return this->n * 2; } }; class nocopy { public: nocopy(int i): i(i) {} nocopy() = default; nocopy(const nocopy&) = delete; nocopy & operator=(const nocopy&) = delete; private: int i; }; } ]])# _AC_CXX_CXX11_TEST_HEADER # _AC_CXX_CXX11_TEST_BODY # ----------------------- # A C++ body suitable for testing for CXX11, assuming the corresponding header. AC_DEFUN([_AC_CXX_CXX11_TEST_BODY], [[ { // Test auto and decltype std::deque d; d.push_front(43); d.push_front(484); d.push_front(3); d.push_front(844); int total = 0; for (auto i = d.begin(); i != d.end(); ++i) { total += *i; } auto a1 = 6538; auto a2 = 48573953.4; auto a3 = "String literal"; decltype(a2) a4 = 34895.034; } { // Test constexpr short sa[cxx11test::get_val()] = { 0 }; } { // Test initializer lists cxx11test::testinit il = { 4323, 435234.23544 }; } { // Test range-based for and lambda cxx11test::int_array array = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3, 14, 19, 17, 8, 6, 20, 16, 2, 11, 1}; for (int &x : array) { x += 23; } std::for_each(array.begin(), array.end(), [](int v1){ std::cout << v1; }); } { using cxx11test::sptr; using cxx11test::wptr; sptr sp(new std::string("ASCII string")); wptr wp(sp); sptr sp2(wp); } { cxx11test::tp tuple("test", 54, 45.53434); double d = std::get<2>(tuple); std::string s; int i; std::tie(s,i,d) = tuple; } { static std::regex filename_regex("^_?([a-z0-9_.]+-)+[a-z0-9]+$"); std::string testmatch("Test if this string matches"); bool match = std::regex_search(testmatch, filename_regex); } { cxx11test::int_array array = {9, 7, 13, 15, 4, 18, 12, 10, 5, 3, 14, 19, 17, 8, 6, 20, 16, 2, 11, 1}; cxx11test::int_array::size_type size = array.size(); } { // Test constructor delegation cxx11test::delegate d1; cxx11test::delegate d2(); cxx11test::delegate d3(45); } { // Test override and final cxx11test::overridden o1(55464); } { // Test nullptr char *c = nullptr; } { // Test template brackets std::vector> v1; } { // Unicode literals char const *utf8 = u8"UTF-8 string \u2500"; char16_t const *utf16 = u"UTF-8 string \u2500"; char32_t const *utf32 = U"UTF-32 string \u2500"; } ]]) # _AC_PROG_CXX_CXX98 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE]) # ------------------------------------------------------------------- # If the C++ compiler is not in ISO C++98 mode by default, try to add # an option to output variable CXX to make it so. This macro tries # various options that select ISO C++98 on some system or another. It # considers the compiler to be in ISO C++98 mode if it handles basic # features of the std namespace including: string, containers (list, # map, set, vector), streams (fstreams, iostreams, stringstreams, # iomanip), pair, exceptions and algorithms. AC_DEFUN([_AC_PROG_CXX_CXX98], [_AC_CXX_STD_TRY([cxx98], [_AC_CXX_CXX98_TEST_HEADER], [_AC_CXX_CXX98_TEST_BODY], dnl Try dnl GCC -std=gnu++98 (unused restrictive mode: -std=c++98) dnl IBM XL C -qlanglvl=extended dnl HP aC++ -AA dnl Intel ICC -std=gnu++98 dnl Solaris N/A (default) dnl Tru64 N/A (default, but -std gnu could be used) dnl with extended modes being tried first. [[-std=gnu++98 -std=c++98 -qlanglvl=extended -AA]], [$1], [$2])[]dnl ])# _AC_PROG_CXX_CXX98 # _AC_PROG_CXX_CXX11 ([ACTION-IF-AVAILABLE], [ACTION-IF-UNAVAILABLE]) # ------------------------------------------------------------------- # If the C++ compiler is not in ISO CXX11 mode by default, try to add # an option to output variable CXX to make it so. This macro tries # various options that select ISO C++11 on some system or another. It # considers the compiler to be in ISO C++11 mode if it handles all the # tests from the C++98 checks, plus the following: Language features # (auto, constexpr, decltype, default/deleted constructors, delegate # constructors, final, initializer lists, lambda functions, nullptr, # override, range-based for loops, template brackets without spaces, # unicode literals) and library features (array, memory (shared_ptr, # weak_ptr), regex and tuple types). AC_DEFUN([_AC_PROG_CXX_CXX11], [_AC_CXX_STD_TRY([cxx11], [_AC_CXX_CXX11_TEST_HEADER _AC_CXX_CXX98_TEST_HEADER], [_AC_CXX_CXX11_TEST_BODY _AC_CXX_CXX98_TEST_BODY], dnl Try dnl GCC -std=gnu++11 (unused restrictive mode: -std=c++11) [and 0x variants] dnl IBM XL C -qlanglvl=extended0x dnl (pre-V12.1; unused restrictive mode: -qlanglvl=stdcxx11) dnl HP aC++ -AA dnl Intel ICC -std=c++11 -std=c++0x dnl Solaris N/A (no support) dnl Tru64 N/A (no support) dnl with extended modes being tried first. [[-std=gnu++11 -std=c++11 -std=gnu++0x -std=c++0x -qlanglvl=extended0x -AA]], [$1], [$2])[]dnl ])# _AC_PROG_CXX_CXX11 # Check for stdalign.h that conforms to C11. dnl Copyright 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Prepare for substituting if it is not supported. AC_DEFUN([gl_STDALIGN_H], [ AC_CACHE_CHECK([for working stdalign.h], [gl_cv_header_working_stdalign_h], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include #include /* Test that alignof yields a result consistent with offsetof. This catches GCC bug 52023 . */ #ifdef __cplusplus template struct alignof_helper { char a; t b; }; # define ao(type) offsetof (alignof_helper, b) #else # define ao(type) offsetof (struct { char a; type b; }, b) #endif char test_double[ao (double) % _Alignof (double) == 0 ? 1 : -1]; char test_long[ao (long int) % _Alignof (long int) == 0 ? 1 : -1]; char test_alignof[alignof (double) == _Alignof (double) ? 1 : -1]; /* Test _Alignas only on platforms where gnulib can help. */ #if \ ((defined __cplusplus && 201103 <= __cplusplus) \ || (defined __APPLE__ && defined __MACH__ \ ? 4 < __GNUC__ + (1 <= __GNUC_MINOR__) \ : __GNUC__) \ || (__ia64 && (61200 <= __HP_cc || 61200 <= __HP_aCC)) \ || __ICC || 0x590 <= __SUNPRO_C || 0x0600 <= __xlC__ \ || 1300 <= _MSC_VER) struct alignas_test { char c; char alignas (8) alignas_8; }; char test_alignas[offsetof (struct alignas_test, alignas_8) == 8 ? 1 : -1]; #endif ]])], [gl_cv_header_working_stdalign_h=yes], [gl_cv_header_working_stdalign_h=no])]) if test $gl_cv_header_working_stdalign_h = yes; then STDALIGN_H='' else STDALIGN_H='stdalign.h' fi AC_SUBST([STDALIGN_H]) AM_CONDITIONAL([GL_GENERATE_STDALIGN_H], [test -n "$STDALIGN_H"]) ]) # Check for stdbool.h that conforms to C99. dnl Copyright (C) 2002-2006, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. #serial 8 # Prepare for substituting if it is not supported. AC_DEFUN([AM_STDBOOL_H], [ AC_REQUIRE([AC_CHECK_HEADER_STDBOOL]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl On some platforms, does not exist or does not conform to C99. dnl On Solaris 10 with CC=cc CXX=CC, exists but is not usable dnl in C++ mode (and no exists). In this case, we use our dnl replacement, also in C mode (for binary compatibility between C and C++). if test "$ac_cv_header_stdbool_h" = yes; then case "$host_os" in solaris*) if test -z "$GCC"; then STDBOOL_H='stdbool.h' else STDBOOL_H='' fi ;; *) STDBOOL_H='' ;; esac else STDBOOL_H='stdbool.h' fi AC_SUBST([STDBOOL_H]) AM_CONDITIONAL([GL_GENERATE_STDBOOL_H], [test -n "$STDBOOL_H"]) if test "$ac_cv_type__Bool" = yes; then HAVE__BOOL=1 else HAVE__BOOL=0 fi AC_SUBST([HAVE__BOOL]) ]) # AM_STDBOOL_H will be renamed to gl_STDBOOL_H in the future. AC_DEFUN([gl_STDBOOL_H], [AM_STDBOOL_H]) # This version of the macro is needed in autoconf <= 2.68. AC_DEFUN([AC_CHECK_HEADER_STDBOOL], [AC_CACHE_CHECK([for stdbool.h that conforms to C99], [ac_cv_header_stdbool_h], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[ #include #ifdef __cplusplus typedef bool Bool; #else typedef _Bool Bool; #ifndef bool "error: bool is not defined" #endif #ifndef false "error: false is not defined" #endif #if false "error: false is not 0" #endif #ifndef true "error: true is not defined" #endif #if true != 1 "error: true is not 1" #endif #endif #ifndef __bool_true_false_are_defined "error: __bool_true_false_are_defined is not defined" #endif struct s { Bool s: 1; Bool t; bool u: 1; bool v; } s; char a[true == 1 ? 1 : -1]; char b[false == 0 ? 1 : -1]; char c[__bool_true_false_are_defined == 1 ? 1 : -1]; char d[(bool) 0.5 == true ? 1 : -1]; /* See body of main program for 'e'. */ char f[(Bool) 0.0 == false ? 1 : -1]; char g[true]; char h[sizeof (Bool)]; char i[sizeof s.t]; enum { j = false, k = true, l = false * true, m = true * 256 }; /* The following fails for HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */ Bool n[m]; char o[sizeof n == m * sizeof n[0] ? 1 : -1]; char p[-1 - (Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1]; /* Catch a bug in an HP-UX C compiler. See https://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html https://lists.gnu.org/r/bug-coreutils/2005-11/msg00161.html */ Bool q = true; Bool *pq = &q; bool *qq = &q; ]], [[ bool e = &s; *pq |= q; *pq |= ! q; *qq |= q; *qq |= ! q; /* Refer to every declared value, to avoid compiler optimizations. */ return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l + !m + !n + !o + !p + !q + !pq + !qq); ]])], [ac_cv_header_stdbool_h=yes], [ac_cv_header_stdbool_h=no])]) AC_CHECK_TYPES([_Bool]) ]) dnl A placeholder for , for platforms that have issues. # stddef_h.m4 serial 6 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_STDDEF_H], [ AC_REQUIRE([gl_STDDEF_H_DEFAULTS]) AC_REQUIRE([gt_TYPE_WCHAR_T]) STDDEF_H= dnl Test whether the type max_align_t exists and whether its alignment dnl "is as great as is supported by the implementation in all contexts". AC_CACHE_CHECK([for good max_align_t], [gl_cv_type_max_align_t], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include unsigned int s = sizeof (max_align_t); #if defined __GNUC__ || defined __IBM__ALIGNOF__ int check1[2 * (__alignof__ (double) <= __alignof__ (max_align_t)) - 1]; int check2[2 * (__alignof__ (long double) <= __alignof__ (max_align_t)) - 1]; #endif ]])], [gl_cv_type_max_align_t=yes], [gl_cv_type_max_align_t=no]) ]) if test $gl_cv_type_max_align_t = no; then HAVE_MAX_ALIGN_T=0 STDDEF_H=stddef.h fi if test $gt_cv_c_wchar_t = no; then HAVE_WCHAR_T=0 STDDEF_H=stddef.h fi AC_CACHE_CHECK([whether NULL can be used in arbitrary expressions], [gl_cv_decl_null_works], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include int test[2 * (sizeof NULL == sizeof (void *)) -1]; ]])], [gl_cv_decl_null_works=yes], [gl_cv_decl_null_works=no])]) if test $gl_cv_decl_null_works = no; then REPLACE_NULL=1 STDDEF_H=stddef.h fi AC_SUBST([STDDEF_H]) AM_CONDITIONAL([GL_GENERATE_STDDEF_H], [test -n "$STDDEF_H"]) if test -n "$STDDEF_H"; then gl_NEXT_HEADERS([stddef.h]) fi ]) AC_DEFUN([gl_STDDEF_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_STDDEF_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) ]) AC_DEFUN([gl_STDDEF_H_DEFAULTS], [ dnl Assume proper GNU behavior unless another module says otherwise. REPLACE_NULL=0; AC_SUBST([REPLACE_NULL]) HAVE_MAX_ALIGN_T=1; AC_SUBST([HAVE_MAX_ALIGN_T]) HAVE_WCHAR_T=1; AC_SUBST([HAVE_WCHAR_T]) ]) # stdint.m4 serial 54 dnl Copyright (C) 2001-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert and Bruno Haible. dnl Test whether is supported or must be substituted. AC_PREREQ([2.61]) AC_DEFUN_ONCE([gl_STDINT_H], [ AC_PREREQ([2.59])dnl AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_LIMITS_H]) AC_REQUIRE([gt_TYPE_WINT_T]) dnl For backward compatibility. Some packages may still be testing these dnl macros. AC_DEFINE([HAVE_LONG_LONG_INT], [1], [Define to 1 if the system has the type 'long long int'.]) AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], [1], [Define to 1 if the system has the type 'unsigned long long int'.]) dnl Check for , in the same way as gl_WCHAR_H does. AC_CHECK_HEADERS_ONCE([wchar.h]) if test $ac_cv_header_wchar_h = yes; then HAVE_WCHAR_H=1 else HAVE_WCHAR_H=0 fi AC_SUBST([HAVE_WCHAR_H]) dnl Check for . dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h. if test $ac_cv_header_inttypes_h = yes; then HAVE_INTTYPES_H=1 else HAVE_INTTYPES_H=0 fi AC_SUBST([HAVE_INTTYPES_H]) dnl Check for . dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_sys_types_h. if test $ac_cv_header_sys_types_h = yes; then HAVE_SYS_TYPES_H=1 else HAVE_SYS_TYPES_H=0 fi AC_SUBST([HAVE_SYS_TYPES_H]) gl_CHECK_NEXT_HEADERS([stdint.h]) if test $ac_cv_header_stdint_h = yes; then HAVE_STDINT_H=1 else HAVE_STDINT_H=0 fi AC_SUBST([HAVE_STDINT_H]) dnl Now see whether we need a substitute . if test $ac_cv_header_stdint_h = yes; then AC_CACHE_CHECK([whether stdint.h conforms to C99], [gl_cv_header_working_stdint_h], [gl_cv_header_working_stdint_h=no AC_COMPILE_IFELSE([ AC_LANG_PROGRAM([[ #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */ #define __STDC_CONSTANT_MACROS 1 #define __STDC_LIMIT_MACROS 1 #include /* Dragonfly defines WCHAR_MIN, WCHAR_MAX only in . */ #if !(defined WCHAR_MIN && defined WCHAR_MAX) #error "WCHAR_MIN, WCHAR_MAX not defined in " #endif ] gl_STDINT_INCLUDES [ #ifdef INT8_MAX int8_t a1 = INT8_MAX; int8_t a1min = INT8_MIN; #endif #ifdef INT16_MAX int16_t a2 = INT16_MAX; int16_t a2min = INT16_MIN; #endif #ifdef INT32_MAX int32_t a3 = INT32_MAX; int32_t a3min = INT32_MIN; #endif #ifdef INT64_MAX int64_t a4 = INT64_MAX; int64_t a4min = INT64_MIN; #endif #ifdef UINT8_MAX uint8_t b1 = UINT8_MAX; #else typedef int b1[(unsigned char) -1 != 255 ? 1 : -1]; #endif #ifdef UINT16_MAX uint16_t b2 = UINT16_MAX; #endif #ifdef UINT32_MAX uint32_t b3 = UINT32_MAX; #endif #ifdef UINT64_MAX uint64_t b4 = UINT64_MAX; #endif int_least8_t c1 = INT8_C (0x7f); int_least8_t c1max = INT_LEAST8_MAX; int_least8_t c1min = INT_LEAST8_MIN; int_least16_t c2 = INT16_C (0x7fff); int_least16_t c2max = INT_LEAST16_MAX; int_least16_t c2min = INT_LEAST16_MIN; int_least32_t c3 = INT32_C (0x7fffffff); int_least32_t c3max = INT_LEAST32_MAX; int_least32_t c3min = INT_LEAST32_MIN; int_least64_t c4 = INT64_C (0x7fffffffffffffff); int_least64_t c4max = INT_LEAST64_MAX; int_least64_t c4min = INT_LEAST64_MIN; uint_least8_t d1 = UINT8_C (0xff); uint_least8_t d1max = UINT_LEAST8_MAX; uint_least16_t d2 = UINT16_C (0xffff); uint_least16_t d2max = UINT_LEAST16_MAX; uint_least32_t d3 = UINT32_C (0xffffffff); uint_least32_t d3max = UINT_LEAST32_MAX; uint_least64_t d4 = UINT64_C (0xffffffffffffffff); uint_least64_t d4max = UINT_LEAST64_MAX; int_fast8_t e1 = INT_FAST8_MAX; int_fast8_t e1min = INT_FAST8_MIN; int_fast16_t e2 = INT_FAST16_MAX; int_fast16_t e2min = INT_FAST16_MIN; int_fast32_t e3 = INT_FAST32_MAX; int_fast32_t e3min = INT_FAST32_MIN; int_fast64_t e4 = INT_FAST64_MAX; int_fast64_t e4min = INT_FAST64_MIN; uint_fast8_t f1 = UINT_FAST8_MAX; uint_fast16_t f2 = UINT_FAST16_MAX; uint_fast32_t f3 = UINT_FAST32_MAX; uint_fast64_t f4 = UINT_FAST64_MAX; #ifdef INTPTR_MAX intptr_t g = INTPTR_MAX; intptr_t gmin = INTPTR_MIN; #endif #ifdef UINTPTR_MAX uintptr_t h = UINTPTR_MAX; #endif intmax_t i = INTMAX_MAX; uintmax_t j = UINTMAX_MAX; /* Check that SIZE_MAX has the correct type, if possible. */ #if 201112 <= __STDC_VERSION__ int k = _Generic (SIZE_MAX, size_t: 0); #elif (2 <= __GNUC__ || defined __IBM__TYPEOF__ \ || (0x5110 <= __SUNPRO_C && !__STDC__)) extern size_t k; extern __typeof__ (SIZE_MAX) k; #endif #include /* for CHAR_BIT */ #define TYPE_MINIMUM(t) \ ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ TYPE_MAXIMUM (t))) #define TYPE_MAXIMUM(t) \ ((t) ((t) 0 < (t) -1 \ ? (t) -1 \ : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1))) struct s { int check_PTRDIFF: PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t) && PTRDIFF_MAX == TYPE_MAXIMUM (ptrdiff_t) ? 1 : -1; /* Detect bug in FreeBSD 6.0 / ia64. */ int check_SIG_ATOMIC: SIG_ATOMIC_MIN == TYPE_MINIMUM (sig_atomic_t) && SIG_ATOMIC_MAX == TYPE_MAXIMUM (sig_atomic_t) ? 1 : -1; int check_SIZE: SIZE_MAX == TYPE_MAXIMUM (size_t) ? 1 : -1; int check_WCHAR: WCHAR_MIN == TYPE_MINIMUM (wchar_t) && WCHAR_MAX == TYPE_MAXIMUM (wchar_t) ? 1 : -1; /* Detect bug in mingw. */ int check_WINT: WINT_MIN == TYPE_MINIMUM (wint_t) && WINT_MAX == TYPE_MAXIMUM (wint_t) ? 1 : -1; /* Detect bugs in glibc 2.4 and Solaris 10 stdint.h, among others. */ int check_UINT8_C: (-1 < UINT8_C (0)) == (-1 < (uint_least8_t) 0) ? 1 : -1; int check_UINT16_C: (-1 < UINT16_C (0)) == (-1 < (uint_least16_t) 0) ? 1 : -1; /* Detect bugs in OpenBSD 3.9 stdint.h. */ #ifdef UINT8_MAX int check_uint8: (uint8_t) -1 == UINT8_MAX ? 1 : -1; #endif #ifdef UINT16_MAX int check_uint16: (uint16_t) -1 == UINT16_MAX ? 1 : -1; #endif #ifdef UINT32_MAX int check_uint32: (uint32_t) -1 == UINT32_MAX ? 1 : -1; #endif #ifdef UINT64_MAX int check_uint64: (uint64_t) -1 == UINT64_MAX ? 1 : -1; #endif int check_uint_least8: (uint_least8_t) -1 == UINT_LEAST8_MAX ? 1 : -1; int check_uint_least16: (uint_least16_t) -1 == UINT_LEAST16_MAX ? 1 : -1; int check_uint_least32: (uint_least32_t) -1 == UINT_LEAST32_MAX ? 1 : -1; int check_uint_least64: (uint_least64_t) -1 == UINT_LEAST64_MAX ? 1 : -1; int check_uint_fast8: (uint_fast8_t) -1 == UINT_FAST8_MAX ? 1 : -1; int check_uint_fast16: (uint_fast16_t) -1 == UINT_FAST16_MAX ? 1 : -1; int check_uint_fast32: (uint_fast32_t) -1 == UINT_FAST32_MAX ? 1 : -1; int check_uint_fast64: (uint_fast64_t) -1 == UINT_FAST64_MAX ? 1 : -1; int check_uintptr: (uintptr_t) -1 == UINTPTR_MAX ? 1 : -1; int check_uintmax: (uintmax_t) -1 == UINTMAX_MAX ? 1 : -1; int check_size: (size_t) -1 == SIZE_MAX ? 1 : -1; }; ]])], [dnl Determine whether the various *_MIN, *_MAX macros are usable dnl in preprocessor expression. We could do it by compiling a test dnl program for each of these macros. It is faster to run a program dnl that inspects the macro expansion. dnl This detects a bug on HP-UX 11.23/ia64. AC_RUN_IFELSE([ AC_LANG_PROGRAM([[ #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */ #define __STDC_CONSTANT_MACROS 1 #define __STDC_LIMIT_MACROS 1 #include ] gl_STDINT_INCLUDES [ #include #include #define MVAL(macro) MVAL1(macro) #define MVAL1(expression) #expression static const char *macro_values[] = { #ifdef INT8_MAX MVAL (INT8_MAX), #endif #ifdef INT16_MAX MVAL (INT16_MAX), #endif #ifdef INT32_MAX MVAL (INT32_MAX), #endif #ifdef INT64_MAX MVAL (INT64_MAX), #endif #ifdef UINT8_MAX MVAL (UINT8_MAX), #endif #ifdef UINT16_MAX MVAL (UINT16_MAX), #endif #ifdef UINT32_MAX MVAL (UINT32_MAX), #endif #ifdef UINT64_MAX MVAL (UINT64_MAX), #endif NULL }; ]], [[ const char **mv; for (mv = macro_values; *mv != NULL; mv++) { const char *value = *mv; /* Test whether it looks like a cast expression. */ if (strncmp (value, "((unsigned int)"/*)*/, 15) == 0 || strncmp (value, "((unsigned short)"/*)*/, 17) == 0 || strncmp (value, "((unsigned char)"/*)*/, 16) == 0 || strncmp (value, "((int)"/*)*/, 6) == 0 || strncmp (value, "((signed short)"/*)*/, 15) == 0 || strncmp (value, "((signed char)"/*)*/, 14) == 0) return mv - macro_values + 1; } return 0; ]])], [gl_cv_header_working_stdint_h=yes], [], [case "$host_os" in # Guess yes on native Windows. mingw*) gl_cv_header_working_stdint_h="guessing yes" ;; # In general, assume it works. *) gl_cv_header_working_stdint_h="guessing yes" ;; esac ]) ]) ]) fi HAVE_C99_STDINT_H=0 HAVE_SYS_BITYPES_H=0 HAVE_SYS_INTTYPES_H=0 STDINT_H=stdint.h case "$gl_cv_header_working_stdint_h" in *yes) HAVE_C99_STDINT_H=1 dnl Now see whether the system works without dnl __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS defined. AC_CACHE_CHECK([whether stdint.h predates C++11], [gl_cv_header_stdint_predates_cxx11_h], [gl_cv_header_stdint_predates_cxx11_h=yes AC_COMPILE_IFELSE([ AC_LANG_PROGRAM([[ #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */ #include ] gl_STDINT_INCLUDES [ intmax_t im = INTMAX_MAX; int32_t i32 = INT32_C (0x7fffffff); ]])], [gl_cv_header_stdint_predates_cxx11_h=no])]) if test "$gl_cv_header_stdint_predates_cxx11_h" = yes; then AC_DEFINE([__STDC_CONSTANT_MACROS], [1], [Define to 1 if the system predates C++11.]) AC_DEFINE([__STDC_LIMIT_MACROS], [1], [Define to 1 if the system predates C++11.]) fi AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.], [gl_cv_header_stdint_width], [gl_cv_header_stdint_width=no AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ /* Work if build is not clean. */ #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 #ifndef __STDC_WANT_IEC_60559_BFP_EXT__ #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 #endif #include ]gl_STDINT_INCLUDES[ int iw = UINTMAX_WIDTH; ]])], [gl_cv_header_stdint_width=yes])]) if test "$gl_cv_header_stdint_width" = yes; then STDINT_H= fi ;; *) dnl Check for , and for dnl (used in Linux libc4 >= 4.6.7 and libc5). AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h]) if test $ac_cv_header_sys_inttypes_h = yes; then HAVE_SYS_INTTYPES_H=1 fi if test $ac_cv_header_sys_bitypes_h = yes; then HAVE_SYS_BITYPES_H=1 fi gl_STDINT_TYPE_PROPERTIES ;; esac dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH. gl_REPLACE_LIMITS_H AC_SUBST([HAVE_C99_STDINT_H]) AC_SUBST([HAVE_SYS_BITYPES_H]) AC_SUBST([HAVE_SYS_INTTYPES_H]) AC_SUBST([STDINT_H]) AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_H"]) ]) dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES) dnl Determine the size of each of the given types in bits. AC_DEFUN([gl_STDINT_BITSIZEOF], [ dnl Use a shell loop, to avoid bloating configure, and dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into dnl config.h.in, dnl - extra AC_SUBST calls, so that the right substitutions are made. m4_foreach_w([gltype], [$1], [AH_TEMPLATE([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]), [Define to the number of bits in type ']gltype['.])]) for gltype in $1 ; do AC_CACHE_CHECK([for bit size of $gltype], [gl_cv_bitsizeof_${gltype}], [AC_COMPUTE_INT([result], [sizeof ($gltype) * CHAR_BIT], [$2 #include ], [result=unknown]) eval gl_cv_bitsizeof_${gltype}=\$result ]) eval result=\$gl_cv_bitsizeof_${gltype} if test $result = unknown; then dnl Use a nonempty default, because some compilers, such as IRIX 5 cc, dnl do a syntax check even on unused #if conditions and give an error dnl on valid C code like this: dnl #if 0 dnl # if > 32 dnl # endif dnl #endif result=0 fi GLTYPE=`echo "$gltype" | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` AC_DEFINE_UNQUOTED([BITSIZEOF_${GLTYPE}], [$result]) eval BITSIZEOF_${GLTYPE}=\$result done m4_foreach_w([gltype], [$1], [AC_SUBST([BITSIZEOF_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) ]) dnl gl_CHECK_TYPES_SIGNED(TYPES, INCLUDES) dnl Determine the signedness of each of the given types. dnl Define HAVE_SIGNED_TYPE if type is signed. AC_DEFUN([gl_CHECK_TYPES_SIGNED], [ dnl Use a shell loop, to avoid bloating configure, and dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into dnl config.h.in, dnl - extra AC_SUBST calls, so that the right substitutions are made. m4_foreach_w([gltype], [$1], [AH_TEMPLATE([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]), [Define to 1 if ']gltype[' is a signed integer type.])]) for gltype in $1 ; do AC_CACHE_CHECK([whether $gltype is signed], [gl_cv_type_${gltype}_signed], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([$2[ int verify[2 * (($gltype) -1 < ($gltype) 0) - 1];]])], result=yes, result=no) eval gl_cv_type_${gltype}_signed=\$result ]) eval result=\$gl_cv_type_${gltype}_signed GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` if test "$result" = yes; then AC_DEFINE_UNQUOTED([HAVE_SIGNED_${GLTYPE}], [1]) eval HAVE_SIGNED_${GLTYPE}=1 else eval HAVE_SIGNED_${GLTYPE}=0 fi done m4_foreach_w([gltype], [$1], [AC_SUBST([HAVE_SIGNED_]m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]))]) ]) dnl gl_INTEGER_TYPE_SUFFIX(TYPES, INCLUDES) dnl Determine the suffix to use for integer constants of the given types. dnl Define t_SUFFIX for each such type. AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], [ dnl Use a shell loop, to avoid bloating configure, and dnl - extra AH_TEMPLATE calls, so that autoheader knows what to put into dnl config.h.in, dnl - extra AC_SUBST calls, so that the right substitutions are made. m4_foreach_w([gltype], [$1], [AH_TEMPLATE(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX], [Define to l, ll, u, ul, ull, etc., as suitable for constants of type ']gltype['.])]) for gltype in $1 ; do AC_CACHE_CHECK([for $gltype integer literal suffix], [gl_cv_type_${gltype}_suffix], [eval gl_cv_type_${gltype}_suffix=no eval result=\$gl_cv_type_${gltype}_signed if test "$result" = yes; then glsufu= else glsufu=u fi for glsuf in "$glsufu" ${glsufu}l ${glsufu}ll ${glsufu}i64; do case $glsuf in '') gltype1='int';; l) gltype1='long int';; ll) gltype1='long long int';; i64) gltype1='__int64';; u) gltype1='unsigned int';; ul) gltype1='unsigned long int';; ull) gltype1='unsigned long long int';; ui64)gltype1='unsigned __int64';; esac AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([$2[ extern $gltype foo; extern $gltype1 foo;]])], [eval gl_cv_type_${gltype}_suffix=\$glsuf]) eval result=\$gl_cv_type_${gltype}_suffix test "$result" != no && break done]) GLTYPE=`echo $gltype | tr 'abcdefghijklmnopqrstuvwxyz ' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'` eval result=\$gl_cv_type_${gltype}_suffix test "$result" = no && result= eval ${GLTYPE}_SUFFIX=\$result AC_DEFINE_UNQUOTED([${GLTYPE}_SUFFIX], [$result]) done m4_foreach_w([gltype], [$1], [AC_SUBST(m4_translit(gltype,[abcdefghijklmnopqrstuvwxyz ],[ABCDEFGHIJKLMNOPQRSTUVWXYZ_])[_SUFFIX])]) ]) dnl gl_STDINT_INCLUDES AC_DEFUN([gl_STDINT_INCLUDES], [[ /* BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #if HAVE_WCHAR_H # include # include # include #endif ]]) dnl gl_STDINT_TYPE_PROPERTIES dnl Compute HAVE_SIGNED_t, BITSIZEOF_t and t_SUFFIX, for all the types t dnl of interest to stdint.in.h. AC_DEFUN([gl_STDINT_TYPE_PROPERTIES], [ AC_REQUIRE([gl_MULTIARCH]) if test $APPLE_UNIVERSAL_BUILD = 0; then gl_STDINT_BITSIZEOF([ptrdiff_t size_t], [gl_STDINT_INCLUDES]) fi gl_STDINT_BITSIZEOF([sig_atomic_t wchar_t wint_t], [gl_STDINT_INCLUDES]) gl_CHECK_TYPES_SIGNED([sig_atomic_t wchar_t wint_t], [gl_STDINT_INCLUDES]) gl_cv_type_ptrdiff_t_signed=yes gl_cv_type_size_t_signed=no if test $APPLE_UNIVERSAL_BUILD = 0; then gl_INTEGER_TYPE_SUFFIX([ptrdiff_t size_t], [gl_STDINT_INCLUDES]) fi gl_INTEGER_TYPE_SUFFIX([sig_atomic_t wchar_t wint_t], [gl_STDINT_INCLUDES]) dnl If wint_t is smaller than 'int', it cannot satisfy the ISO C 99 dnl requirement that wint_t is "unchanged by default argument promotions". dnl In this case gnulib's and override wint_t. dnl Set the variable BITSIZEOF_WINT_T accordingly. if test $GNULIB_OVERRIDES_WINT_T = 1; then BITSIZEOF_WINT_T=32 fi ]) # stdint_h.m4 serial 9 dnl Copyright (C) 1997-2004, 2006, 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert. # Define HAVE_STDINT_H_WITH_UINTMAX if exists, # doesn't clash with , and declares uintmax_t. AC_DEFUN([gl_AC_HEADER_STDINT_H], [ AC_CACHE_CHECK([for stdint.h], [gl_cv_header_stdint_h], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include #include ]], [[uintmax_t i = (uintmax_t) -1; return !i;]])], [gl_cv_header_stdint_h=yes], [gl_cv_header_stdint_h=no])]) if test $gl_cv_header_stdint_h = yes; then AC_DEFINE_UNQUOTED([HAVE_STDINT_H_WITH_UINTMAX], [1], [Define if exists, doesn't clash with , and declares uintmax_t. ]) fi ]) # stdio_h.m4 serial 50 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_STDIO_H], [ AH_VERBATIM([MINGW_ANSI_STDIO], [/* Use GNU style printf and scanf. */ #ifndef __USE_MINGW_ANSI_STDIO # undef __USE_MINGW_ANSI_STDIO #endif ]) AC_DEFINE([__USE_MINGW_ANSI_STDIO]) AC_REQUIRE([gl_STDIO_H_DEFAULTS]) gl_NEXT_HEADERS([stdio.h]) dnl Determine whether __USE_MINGW_ANSI_STDIO makes printf and dnl inttypes.h behave like gnu instead of system; we must give our dnl printf wrapper the right attribute to match. AC_CACHE_CHECK([which flavor of printf attribute matches inttypes macros], [gl_cv_func_printf_attribute_flavor], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #define __STDC_FORMAT_MACROS 1 #include #include /* For non-mingw systems, compilation will trivially succeed. For mingw, compilation will succeed for older mingw (system printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */ #if (defined _WIN32 && ! defined __CYGWIN__) && \ (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1]; #endif ]])], [gl_cv_func_printf_attribute_flavor=system], [gl_cv_func_printf_attribute_flavor=gnu])]) if test "$gl_cv_func_printf_attribute_flavor" = gnu; then AC_DEFINE([GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU], [1], [Define to 1 if printf and friends should be labeled with attribute "__gnu_printf__" instead of "__printf__"]) fi dnl No need to create extra modules for these functions. Everyone who uses dnl likely needs them. GNULIB_FSCANF=1 gl_MODULE_INDICATOR([fscanf]) GNULIB_SCANF=1 gl_MODULE_INDICATOR([scanf]) GNULIB_FGETC=1 GNULIB_GETC=1 GNULIB_GETCHAR=1 GNULIB_FGETS=1 GNULIB_FREAD=1 dnl This ifdef is necessary to avoid an error "missing file lib/stdio-read.c" dnl "expected source file, required through AC_LIBSOURCES, not found". It is dnl also an optimization, to avoid performing a configure check whose result dnl is not used. But it does not make the test of GNULIB_STDIO_H_NONBLOCKING dnl or GNULIB_NONBLOCKING redundant. m4_ifdef([gl_NONBLOCKING_IO], [ gl_NONBLOCKING_IO if test $gl_cv_have_nonblocking != yes; then REPLACE_STDIO_READ_FUNCS=1 AC_LIBOBJ([stdio-read]) fi ]) dnl No need to create extra modules for these functions. Everyone who uses dnl likely needs them. GNULIB_FPRINTF=1 GNULIB_PRINTF=1 GNULIB_VFPRINTF=1 GNULIB_VPRINTF=1 GNULIB_FPUTC=1 GNULIB_PUTC=1 GNULIB_PUTCHAR=1 GNULIB_FPUTS=1 GNULIB_PUTS=1 GNULIB_FWRITE=1 dnl This ifdef is necessary to avoid an error "missing file lib/stdio-write.c" dnl "expected source file, required through AC_LIBSOURCES, not found". It is dnl also an optimization, to avoid performing a configure check whose result dnl is not used. But it does not make the test of GNULIB_STDIO_H_SIGPIPE or dnl GNULIB_SIGPIPE redundant. m4_ifdef([gl_SIGNAL_SIGPIPE], [ gl_SIGNAL_SIGPIPE if test $gl_cv_header_signal_h_SIGPIPE != yes; then REPLACE_STDIO_WRITE_FUNCS=1 AC_LIBOBJ([stdio-write]) fi ]) dnl This ifdef is necessary to avoid an error "missing file lib/stdio-write.c" dnl "expected source file, required through AC_LIBSOURCES, not found". It is dnl also an optimization, to avoid performing a configure check whose result dnl is not used. But it does not make the test of GNULIB_STDIO_H_NONBLOCKING dnl or GNULIB_NONBLOCKING redundant. m4_ifdef([gl_NONBLOCKING_IO], [ gl_NONBLOCKING_IO if test $gl_cv_have_nonblocking != yes; then REPLACE_STDIO_WRITE_FUNCS=1 AC_LIBOBJ([stdio-write]) fi ]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use, and which is not dnl guaranteed by both C89 and C11. gl_WARN_ON_USE_PREPARE([[#include ]], [dprintf fpurge fseeko ftello getdelim getline gets pclose popen renameat snprintf tmpfile vdprintf vsnprintf]) AC_REQUIRE([AC_C_RESTRICT]) ]) AC_DEFUN([gl_STDIO_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_STDIO_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_STDIO_H_DEFAULTS], [ GNULIB_DPRINTF=0; AC_SUBST([GNULIB_DPRINTF]) GNULIB_FCLOSE=0; AC_SUBST([GNULIB_FCLOSE]) GNULIB_FDOPEN=0; AC_SUBST([GNULIB_FDOPEN]) GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH]) GNULIB_FGETC=0; AC_SUBST([GNULIB_FGETC]) GNULIB_FGETS=0; AC_SUBST([GNULIB_FGETS]) GNULIB_FOPEN=0; AC_SUBST([GNULIB_FOPEN]) GNULIB_FPRINTF=0; AC_SUBST([GNULIB_FPRINTF]) GNULIB_FPRINTF_POSIX=0; AC_SUBST([GNULIB_FPRINTF_POSIX]) GNULIB_FPURGE=0; AC_SUBST([GNULIB_FPURGE]) GNULIB_FPUTC=0; AC_SUBST([GNULIB_FPUTC]) GNULIB_FPUTS=0; AC_SUBST([GNULIB_FPUTS]) GNULIB_FREAD=0; AC_SUBST([GNULIB_FREAD]) GNULIB_FREOPEN=0; AC_SUBST([GNULIB_FREOPEN]) GNULIB_FSCANF=0; AC_SUBST([GNULIB_FSCANF]) GNULIB_FSEEK=0; AC_SUBST([GNULIB_FSEEK]) GNULIB_FSEEKO=0; AC_SUBST([GNULIB_FSEEKO]) GNULIB_FTELL=0; AC_SUBST([GNULIB_FTELL]) GNULIB_FTELLO=0; AC_SUBST([GNULIB_FTELLO]) GNULIB_FWRITE=0; AC_SUBST([GNULIB_FWRITE]) GNULIB_GETC=0; AC_SUBST([GNULIB_GETC]) GNULIB_GETCHAR=0; AC_SUBST([GNULIB_GETCHAR]) GNULIB_GETDELIM=0; AC_SUBST([GNULIB_GETDELIM]) GNULIB_GETLINE=0; AC_SUBST([GNULIB_GETLINE]) GNULIB_OBSTACK_PRINTF=0; AC_SUBST([GNULIB_OBSTACK_PRINTF]) GNULIB_OBSTACK_PRINTF_POSIX=0; AC_SUBST([GNULIB_OBSTACK_PRINTF_POSIX]) GNULIB_PCLOSE=0; AC_SUBST([GNULIB_PCLOSE]) GNULIB_PERROR=0; AC_SUBST([GNULIB_PERROR]) GNULIB_POPEN=0; AC_SUBST([GNULIB_POPEN]) GNULIB_PRINTF=0; AC_SUBST([GNULIB_PRINTF]) GNULIB_PRINTF_POSIX=0; AC_SUBST([GNULIB_PRINTF_POSIX]) GNULIB_PUTC=0; AC_SUBST([GNULIB_PUTC]) GNULIB_PUTCHAR=0; AC_SUBST([GNULIB_PUTCHAR]) GNULIB_PUTS=0; AC_SUBST([GNULIB_PUTS]) GNULIB_REMOVE=0; AC_SUBST([GNULIB_REMOVE]) GNULIB_RENAME=0; AC_SUBST([GNULIB_RENAME]) GNULIB_RENAMEAT=0; AC_SUBST([GNULIB_RENAMEAT]) GNULIB_SCANF=0; AC_SUBST([GNULIB_SCANF]) GNULIB_SNPRINTF=0; AC_SUBST([GNULIB_SNPRINTF]) GNULIB_SPRINTF_POSIX=0; AC_SUBST([GNULIB_SPRINTF_POSIX]) GNULIB_STDIO_H_NONBLOCKING=0; AC_SUBST([GNULIB_STDIO_H_NONBLOCKING]) GNULIB_STDIO_H_SIGPIPE=0; AC_SUBST([GNULIB_STDIO_H_SIGPIPE]) GNULIB_TMPFILE=0; AC_SUBST([GNULIB_TMPFILE]) GNULIB_VASPRINTF=0; AC_SUBST([GNULIB_VASPRINTF]) GNULIB_VFSCANF=0; AC_SUBST([GNULIB_VFSCANF]) GNULIB_VSCANF=0; AC_SUBST([GNULIB_VSCANF]) GNULIB_VDPRINTF=0; AC_SUBST([GNULIB_VDPRINTF]) GNULIB_VFPRINTF=0; AC_SUBST([GNULIB_VFPRINTF]) GNULIB_VFPRINTF_POSIX=0; AC_SUBST([GNULIB_VFPRINTF_POSIX]) GNULIB_VPRINTF=0; AC_SUBST([GNULIB_VPRINTF]) GNULIB_VPRINTF_POSIX=0; AC_SUBST([GNULIB_VPRINTF_POSIX]) GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF]) GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE]) HAVE_DECL_FSEEKO=1; AC_SUBST([HAVE_DECL_FSEEKO]) HAVE_DECL_FTELLO=1; AC_SUBST([HAVE_DECL_FTELLO]) HAVE_DECL_GETDELIM=1; AC_SUBST([HAVE_DECL_GETDELIM]) HAVE_DECL_GETLINE=1; AC_SUBST([HAVE_DECL_GETLINE]) HAVE_DECL_OBSTACK_PRINTF=1; AC_SUBST([HAVE_DECL_OBSTACK_PRINTF]) HAVE_DECL_SNPRINTF=1; AC_SUBST([HAVE_DECL_SNPRINTF]) HAVE_DECL_VSNPRINTF=1; AC_SUBST([HAVE_DECL_VSNPRINTF]) HAVE_DPRINTF=1; AC_SUBST([HAVE_DPRINTF]) HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO]) HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO]) HAVE_PCLOSE=1; AC_SUBST([HAVE_PCLOSE]) HAVE_POPEN=1; AC_SUBST([HAVE_POPEN]) HAVE_RENAMEAT=1; AC_SUBST([HAVE_RENAMEAT]) HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF]) HAVE_VDPRINTF=1; AC_SUBST([HAVE_VDPRINTF]) REPLACE_DPRINTF=0; AC_SUBST([REPLACE_DPRINTF]) REPLACE_FCLOSE=0; AC_SUBST([REPLACE_FCLOSE]) REPLACE_FDOPEN=0; AC_SUBST([REPLACE_FDOPEN]) REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH]) REPLACE_FOPEN=0; AC_SUBST([REPLACE_FOPEN]) REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF]) REPLACE_FPURGE=0; AC_SUBST([REPLACE_FPURGE]) REPLACE_FREOPEN=0; AC_SUBST([REPLACE_FREOPEN]) REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK]) REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO]) REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL]) REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO]) REPLACE_GETDELIM=0; AC_SUBST([REPLACE_GETDELIM]) REPLACE_GETLINE=0; AC_SUBST([REPLACE_GETLINE]) REPLACE_OBSTACK_PRINTF=0; AC_SUBST([REPLACE_OBSTACK_PRINTF]) REPLACE_PERROR=0; AC_SUBST([REPLACE_PERROR]) REPLACE_POPEN=0; AC_SUBST([REPLACE_POPEN]) REPLACE_PRINTF=0; AC_SUBST([REPLACE_PRINTF]) REPLACE_REMOVE=0; AC_SUBST([REPLACE_REMOVE]) REPLACE_RENAME=0; AC_SUBST([REPLACE_RENAME]) REPLACE_RENAMEAT=0; AC_SUBST([REPLACE_RENAMEAT]) REPLACE_SNPRINTF=0; AC_SUBST([REPLACE_SNPRINTF]) REPLACE_SPRINTF=0; AC_SUBST([REPLACE_SPRINTF]) REPLACE_STDIO_READ_FUNCS=0; AC_SUBST([REPLACE_STDIO_READ_FUNCS]) REPLACE_STDIO_WRITE_FUNCS=0; AC_SUBST([REPLACE_STDIO_WRITE_FUNCS]) REPLACE_TMPFILE=0; AC_SUBST([REPLACE_TMPFILE]) REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF]) REPLACE_VDPRINTF=0; AC_SUBST([REPLACE_VDPRINTF]) REPLACE_VFPRINTF=0; AC_SUBST([REPLACE_VFPRINTF]) REPLACE_VPRINTF=0; AC_SUBST([REPLACE_VPRINTF]) REPLACE_VSNPRINTF=0; AC_SUBST([REPLACE_VSNPRINTF]) REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF]) ]) # stdlib_h.m4 serial 49 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_STDLIB_H], [ AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) gl_NEXT_HEADERS([stdlib.h]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use, and which is not dnl guaranteed by C89. gl_WARN_ON_USE_PREPARE([[#include #if HAVE_SYS_LOADAVG_H /* OpenIndiana has a bug: must be included before . */ # include # include #endif #if HAVE_RANDOM_H # include #endif ]], [_Exit atoll canonicalize_file_name getloadavg getsubopt grantpt initstate initstate_r mbtowc mkdtemp mkostemp mkostemps mkstemp mkstemps posix_openpt ptsname ptsname_r qsort_r random random_r reallocarray realpath rpmatch secure_getenv setenv setstate setstate_r srandom srandom_r strtod strtold strtoll strtoull unlockpt unsetenv]) AC_REQUIRE([AC_C_RESTRICT]) ]) AC_DEFUN([gl_STDLIB_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_STDLIB_H_DEFAULTS], [ GNULIB__EXIT=0; AC_SUBST([GNULIB__EXIT]) GNULIB_ATOLL=0; AC_SUBST([GNULIB_ATOLL]) GNULIB_CALLOC_POSIX=0; AC_SUBST([GNULIB_CALLOC_POSIX]) GNULIB_CANONICALIZE_FILE_NAME=0; AC_SUBST([GNULIB_CANONICALIZE_FILE_NAME]) GNULIB_GETLOADAVG=0; AC_SUBST([GNULIB_GETLOADAVG]) GNULIB_GETSUBOPT=0; AC_SUBST([GNULIB_GETSUBOPT]) GNULIB_GRANTPT=0; AC_SUBST([GNULIB_GRANTPT]) GNULIB_MALLOC_POSIX=0; AC_SUBST([GNULIB_MALLOC_POSIX]) GNULIB_MBTOWC=0; AC_SUBST([GNULIB_MBTOWC]) GNULIB_MKDTEMP=0; AC_SUBST([GNULIB_MKDTEMP]) GNULIB_MKOSTEMP=0; AC_SUBST([GNULIB_MKOSTEMP]) GNULIB_MKOSTEMPS=0; AC_SUBST([GNULIB_MKOSTEMPS]) GNULIB_MKSTEMP=0; AC_SUBST([GNULIB_MKSTEMP]) GNULIB_MKSTEMPS=0; AC_SUBST([GNULIB_MKSTEMPS]) GNULIB_POSIX_OPENPT=0; AC_SUBST([GNULIB_POSIX_OPENPT]) GNULIB_PTSNAME=0; AC_SUBST([GNULIB_PTSNAME]) GNULIB_PTSNAME_R=0; AC_SUBST([GNULIB_PTSNAME_R]) GNULIB_PUTENV=0; AC_SUBST([GNULIB_PUTENV]) GNULIB_QSORT_R=0; AC_SUBST([GNULIB_QSORT_R]) GNULIB_RANDOM=0; AC_SUBST([GNULIB_RANDOM]) GNULIB_RANDOM_R=0; AC_SUBST([GNULIB_RANDOM_R]) GNULIB_REALLOCARRAY=0; AC_SUBST([GNULIB_REALLOCARRAY]) GNULIB_REALLOC_POSIX=0; AC_SUBST([GNULIB_REALLOC_POSIX]) GNULIB_REALPATH=0; AC_SUBST([GNULIB_REALPATH]) GNULIB_RPMATCH=0; AC_SUBST([GNULIB_RPMATCH]) GNULIB_SECURE_GETENV=0; AC_SUBST([GNULIB_SECURE_GETENV]) GNULIB_SETENV=0; AC_SUBST([GNULIB_SETENV]) GNULIB_STRTOD=0; AC_SUBST([GNULIB_STRTOD]) GNULIB_STRTOLD=0; AC_SUBST([GNULIB_STRTOLD]) GNULIB_STRTOLL=0; AC_SUBST([GNULIB_STRTOLL]) GNULIB_STRTOULL=0; AC_SUBST([GNULIB_STRTOULL]) GNULIB_SYSTEM_POSIX=0; AC_SUBST([GNULIB_SYSTEM_POSIX]) GNULIB_UNLOCKPT=0; AC_SUBST([GNULIB_UNLOCKPT]) GNULIB_UNSETENV=0; AC_SUBST([GNULIB_UNSETENV]) GNULIB_WCTOMB=0; AC_SUBST([GNULIB_WCTOMB]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE__EXIT=1; AC_SUBST([HAVE__EXIT]) HAVE_ATOLL=1; AC_SUBST([HAVE_ATOLL]) HAVE_CANONICALIZE_FILE_NAME=1; AC_SUBST([HAVE_CANONICALIZE_FILE_NAME]) HAVE_DECL_GETLOADAVG=1; AC_SUBST([HAVE_DECL_GETLOADAVG]) HAVE_GETSUBOPT=1; AC_SUBST([HAVE_GETSUBOPT]) HAVE_GRANTPT=1; AC_SUBST([HAVE_GRANTPT]) HAVE_INITSTATE=1; AC_SUBST([HAVE_INITSTATE]) HAVE_DECL_INITSTATE=1; AC_SUBST([HAVE_DECL_INITSTATE]) HAVE_MBTOWC=1; AC_SUBST([HAVE_MBTOWC]) HAVE_MKDTEMP=1; AC_SUBST([HAVE_MKDTEMP]) HAVE_MKOSTEMP=1; AC_SUBST([HAVE_MKOSTEMP]) HAVE_MKOSTEMPS=1; AC_SUBST([HAVE_MKOSTEMPS]) HAVE_MKSTEMP=1; AC_SUBST([HAVE_MKSTEMP]) HAVE_MKSTEMPS=1; AC_SUBST([HAVE_MKSTEMPS]) HAVE_POSIX_OPENPT=1; AC_SUBST([HAVE_POSIX_OPENPT]) HAVE_PTSNAME=1; AC_SUBST([HAVE_PTSNAME]) HAVE_PTSNAME_R=1; AC_SUBST([HAVE_PTSNAME_R]) HAVE_QSORT_R=1; AC_SUBST([HAVE_QSORT_R]) HAVE_RANDOM=1; AC_SUBST([HAVE_RANDOM]) HAVE_RANDOM_H=1; AC_SUBST([HAVE_RANDOM_H]) HAVE_RANDOM_R=1; AC_SUBST([HAVE_RANDOM_R]) HAVE_REALLOCARRAY=1; AC_SUBST([HAVE_REALLOCARRAY]) HAVE_REALPATH=1; AC_SUBST([HAVE_REALPATH]) HAVE_RPMATCH=1; AC_SUBST([HAVE_RPMATCH]) HAVE_SECURE_GETENV=1; AC_SUBST([HAVE_SECURE_GETENV]) HAVE_SETENV=1; AC_SUBST([HAVE_SETENV]) HAVE_DECL_SETENV=1; AC_SUBST([HAVE_DECL_SETENV]) HAVE_SETSTATE=1; AC_SUBST([HAVE_SETSTATE]) HAVE_DECL_SETSTATE=1; AC_SUBST([HAVE_DECL_SETSTATE]) HAVE_STRTOD=1; AC_SUBST([HAVE_STRTOD]) HAVE_STRTOLD=1; AC_SUBST([HAVE_STRTOLD]) HAVE_STRTOLL=1; AC_SUBST([HAVE_STRTOLL]) HAVE_STRTOULL=1; AC_SUBST([HAVE_STRTOULL]) HAVE_STRUCT_RANDOM_DATA=1; AC_SUBST([HAVE_STRUCT_RANDOM_DATA]) HAVE_SYS_LOADAVG_H=0; AC_SUBST([HAVE_SYS_LOADAVG_H]) HAVE_UNLOCKPT=1; AC_SUBST([HAVE_UNLOCKPT]) HAVE_DECL_UNSETENV=1; AC_SUBST([HAVE_DECL_UNSETENV]) REPLACE_CALLOC=0; AC_SUBST([REPLACE_CALLOC]) REPLACE_CANONICALIZE_FILE_NAME=0; AC_SUBST([REPLACE_CANONICALIZE_FILE_NAME]) REPLACE_INITSTATE=0; AC_SUBST([REPLACE_INITSTATE]) REPLACE_MALLOC=0; AC_SUBST([REPLACE_MALLOC]) REPLACE_MBTOWC=0; AC_SUBST([REPLACE_MBTOWC]) REPLACE_MKSTEMP=0; AC_SUBST([REPLACE_MKSTEMP]) REPLACE_PTSNAME=0; AC_SUBST([REPLACE_PTSNAME]) REPLACE_PTSNAME_R=0; AC_SUBST([REPLACE_PTSNAME_R]) REPLACE_PUTENV=0; AC_SUBST([REPLACE_PUTENV]) REPLACE_QSORT_R=0; AC_SUBST([REPLACE_QSORT_R]) REPLACE_RANDOM=0; AC_SUBST([REPLACE_RANDOM]) REPLACE_RANDOM_R=0; AC_SUBST([REPLACE_RANDOM_R]) REPLACE_REALLOC=0; AC_SUBST([REPLACE_REALLOC]) REPLACE_REALPATH=0; AC_SUBST([REPLACE_REALPATH]) REPLACE_SETENV=0; AC_SUBST([REPLACE_SETENV]) REPLACE_SETSTATE=0; AC_SUBST([REPLACE_SETSTATE]) REPLACE_STRTOD=0; AC_SUBST([REPLACE_STRTOD]) REPLACE_STRTOLD=0; AC_SUBST([REPLACE_STRTOLD]) REPLACE_UNSETENV=0; AC_SUBST([REPLACE_UNSETENV]) REPLACE_WCTOMB=0; AC_SUBST([REPLACE_WCTOMB]) ]) # strcase.m4 serial 11 dnl Copyright (C) 2002, 2005-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_STRCASE], [ gl_FUNC_STRCASECMP gl_FUNC_STRNCASECMP ]) AC_DEFUN([gl_FUNC_STRCASECMP], [ AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS]) AC_CHECK_FUNCS([strcasecmp]) if test $ac_cv_func_strcasecmp = no; then HAVE_STRCASECMP=0 fi ]) AC_DEFUN([gl_FUNC_STRNCASECMP], [ AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS]) AC_CHECK_FUNCS([strncasecmp]) if test $ac_cv_func_strncasecmp = yes; then HAVE_STRNCASECMP=1 else HAVE_STRNCASECMP=0 fi AC_CHECK_DECLS([strncasecmp]) if test $ac_cv_have_decl_strncasecmp = no; then HAVE_DECL_STRNCASECMP=0 fi ]) # Prerequisites of lib/strcasecmp.c. AC_DEFUN([gl_PREREQ_STRCASECMP], [ : ]) # Prerequisites of lib/strncasecmp.c. AC_DEFUN([gl_PREREQ_STRNCASECMP], [ : ]) # strdup.m4 serial 13 dnl Copyright (C) 2002-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STRDUP], [ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([strdup]) AC_CHECK_DECLS_ONCE([strdup]) if test $ac_cv_have_decl_strdup = no; then HAVE_DECL_STRDUP=0 fi ]) AC_DEFUN([gl_FUNC_STRDUP_POSIX], [ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_REQUIRE([gl_CHECK_MALLOC_POSIX]) AC_CHECK_FUNCS_ONCE([strdup]) if test $ac_cv_func_strdup = yes; then if test $gl_cv_func_malloc_posix != yes; then REPLACE_STRDUP=1 fi fi AC_CHECK_DECLS_ONCE([strdup]) if test $ac_cv_have_decl_strdup = no; then HAVE_DECL_STRDUP=0 fi ]) # Prerequisites of lib/strdup.c. AC_DEFUN([gl_PREREQ_STRDUP], [:]) # strerror.m4 serial 21 dnl Copyright (C) 2002, 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STRERROR], [ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_REQUIRE([gl_HEADER_ERRNO_H]) AC_REQUIRE([gl_FUNC_STRERROR_0]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles m4_ifdef([gl_FUNC_STRERROR_R_WORKS], [ AC_REQUIRE([gl_FUNC_STRERROR_R_WORKS]) ]) if test "$ERRNO_H:$REPLACE_STRERROR_0" = :0; then AC_CACHE_CHECK([for working strerror function], [gl_cv_func_working_strerror], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[if (!*strerror (-2)) return 1;]])], [gl_cv_func_working_strerror=yes], [gl_cv_func_working_strerror=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_working_strerror="guessing yes" ;; # Guess yes on musl systems. *-musl*) gl_cv_func_working_strerror="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_working_strerror="$gl_cross_guess_normal" ;; esac ]) ]) case "$gl_cv_func_working_strerror" in *yes) ;; *) dnl The system's strerror() fails to return a string for out-of-range dnl integers. Replace it. REPLACE_STRERROR=1 ;; esac m4_ifdef([gl_FUNC_STRERROR_R_WORKS], [ dnl If the system's strerror_r or __xpg_strerror_r clobbers strerror's dnl buffer, we must replace strerror. case "$gl_cv_func_strerror_r_works" in *no) REPLACE_STRERROR=1 ;; esac ]) else dnl The system's strerror() cannot know about the new errno values we add dnl to , or any fix for strerror(0). Replace it. REPLACE_STRERROR=1 fi ]) dnl Detect if strerror(0) passes (that is, does not set errno, and does not dnl return a string that matches strerror(-1)). AC_DEFUN([gl_FUNC_STRERROR_0], [ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles REPLACE_STRERROR_0=0 AC_CACHE_CHECK([whether strerror(0) succeeds], [gl_cv_func_strerror_0_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include ]], [[int result = 0; char *str; errno = 0; str = strerror (0); if (!*str) result |= 1; if (errno) result |= 2; if (strstr (str, "nknown") || strstr (str, "ndefined")) result |= 4; return result;]])], [gl_cv_func_strerror_0_works=yes], [gl_cv_func_strerror_0_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_strerror_0_works="guessing yes" ;; # Guess yes on musl systems. *-musl*) gl_cv_func_strerror_0_works="guessing yes" ;; # Guess yes on native Windows. mingw*) gl_cv_func_strerror_0_works="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_strerror_0_works="$gl_cross_guess_normal" ;; esac ]) ]) case "$gl_cv_func_strerror_0_works" in *yes) ;; *) REPLACE_STRERROR_0=1 AC_DEFINE([REPLACE_STRERROR_0], [1], [Define to 1 if strerror(0) does not return a message implying success.]) ;; esac ]) # strerror_r.m4 serial 20 dnl Copyright (C) 2002, 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STRERROR_R], [ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_STRERROR_R_WORKS]) dnl Persuade Solaris to declare strerror_r(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) dnl Some systems don't declare strerror_r() if _THREAD_SAFE and _REENTRANT dnl are not defined. AC_CHECK_DECLS_ONCE([strerror_r]) if test $ac_cv_have_decl_strerror_r = no; then HAVE_DECL_STRERROR_R=0 fi if test $ac_cv_func_strerror_r = yes; then if test "$ERRNO_H:$REPLACE_STRERROR_0" = :0; then if test $gl_cv_func_strerror_r_posix_signature = yes; then case "$gl_cv_func_strerror_r_works" in dnl The system's strerror_r has bugs. Replace it. *no) REPLACE_STRERROR_R=1 ;; esac else dnl The system's strerror_r() has a wrong signature. Replace it. REPLACE_STRERROR_R=1 fi else dnl The system's strerror_r() cannot know about the new errno values we dnl add to , or any fix for strerror(0). Replace it. REPLACE_STRERROR_R=1 fi fi ]) # Prerequisites of lib/strerror_r.c. AC_DEFUN([gl_PREREQ_STRERROR_R], [ dnl glibc >= 2.3.4 and cygwin 1.7.9 have a function __xpg_strerror_r. AC_CHECK_FUNCS_ONCE([__xpg_strerror_r]) AC_CHECK_FUNCS_ONCE([catgets]) AC_CHECK_FUNCS_ONCE([snprintf]) ]) # Detect if strerror_r works, but without affecting whether a replacement # strerror_r will be used. AC_DEFUN([gl_FUNC_STRERROR_R_WORKS], [ AC_REQUIRE([gl_HEADER_ERRNO_H]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_FUNC_STRERROR_0]) AC_CHECK_FUNCS_ONCE([strerror_r]) if test $ac_cv_func_strerror_r = yes; then if test "$ERRNO_H:$REPLACE_STRERROR_0" = :0; then dnl The POSIX prototype is: int strerror_r (int, char *, size_t); dnl glibc, Cygwin: char *strerror_r (int, char *, size_t); dnl AIX 5.1, OSF/1 5.1: int strerror_r (int, char *, int); AC_CACHE_CHECK([for strerror_r with POSIX signature], [gl_cv_func_strerror_r_posix_signature], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include int strerror_r (int, char *, size_t); ]], [])], [gl_cv_func_strerror_r_posix_signature=yes], [gl_cv_func_strerror_r_posix_signature=no]) ]) if test $gl_cv_func_strerror_r_posix_signature = yes; then dnl AIX 6.1 strerror_r fails by returning -1, not an error number. dnl HP-UX 11.31 strerror_r always fails when the buffer length argument dnl is less than 80. dnl FreeBSD 8.s strerror_r claims failure on 0 dnl Mac OS X 10.5 strerror_r treats 0 like -1 dnl Solaris 10 strerror_r corrupts errno on failure AC_CACHE_CHECK([whether strerror_r works], [gl_cv_func_strerror_r_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include ]], [[int result = 0; char buf[79]; if (strerror_r (EACCES, buf, 0) < 0) result |= 1; errno = 0; if (strerror_r (EACCES, buf, sizeof buf) != 0) result |= 2; strcpy (buf, "Unknown"); if (strerror_r (0, buf, sizeof buf) != 0) result |= 4; if (errno) result |= 8; if (strstr (buf, "nknown") || strstr (buf, "ndefined")) result |= 0x10; errno = 0; *buf = 0; if (strerror_r (-3, buf, sizeof buf) < 0) result |= 0x20; if (errno) result |= 0x40; if (!*buf) result |= 0x80; return result; ]])], [gl_cv_func_strerror_r_works=yes], [gl_cv_func_strerror_r_works=no], [ changequote(,)dnl case "$host_os" in # Guess no on AIX. aix*) gl_cv_func_strerror_r_works="guessing no";; # Guess no on HP-UX. hpux*) gl_cv_func_strerror_r_works="guessing no";; # Guess no on BSD variants. *bsd*) gl_cv_func_strerror_r_works="guessing no";; # Guess yes otherwise. *) gl_cv_func_strerror_r_works="guessing yes";; esac changequote([,])dnl ]) ]) else dnl The system's strerror() has a wrong signature. dnl glibc >= 2.3.4 and cygwin 1.7.9 have a function __xpg_strerror_r. AC_CHECK_FUNCS_ONCE([__xpg_strerror_r]) dnl In glibc < 2.14, __xpg_strerror_r does not populate buf on failure. dnl In cygwin < 1.7.10, __xpg_strerror_r clobbers strerror's buffer. if test $ac_cv_func___xpg_strerror_r = yes; then AC_CACHE_CHECK([whether __xpg_strerror_r works], [gl_cv_func_strerror_r_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include extern #ifdef __cplusplus "C" #endif int __xpg_strerror_r(int, char *, size_t); ]], [[int result = 0; char buf[256] = "^"; char copy[256]; char *str = strerror (-1); strcpy (copy, str); if (__xpg_strerror_r (-2, buf, 1) == 0) result |= 1; if (*buf) result |= 2; __xpg_strerror_r (-2, buf, 256); if (strcmp (str, copy)) result |= 4; return result; ]])], [gl_cv_func_strerror_r_works=yes], [gl_cv_func_strerror_r_works=no], [dnl Guess no on all platforms that have __xpg_strerror_r, dnl at least until fixed glibc and cygwin are more common. gl_cv_func_strerror_r_works="$gl_cross_guess_normal" ]) ]) fi fi fi fi ]) # Configure a GNU-like replacement for . # Copyright (C) 2007-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # serial 23 # Written by Paul Eggert. AC_DEFUN([gl_HEADER_STRING_H], [ dnl Use AC_REQUIRE here, so that the default behavior below is expanded dnl once only, before all statements that occur in other macros. AC_REQUIRE([gl_HEADER_STRING_H_BODY]) ]) AC_DEFUN([gl_HEADER_STRING_H_BODY], [ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) gl_NEXT_HEADERS([string.h]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use, and which is not dnl guaranteed by C89. gl_WARN_ON_USE_PREPARE([[#include ]], [ffsl ffsll memmem mempcpy memrchr rawmemchr stpcpy stpncpy strchrnul strdup strncat strndup strnlen strpbrk strsep strcasestr strtok_r strerror_r strsignal strverscmp]) AC_REQUIRE([AC_C_RESTRICT]) ]) AC_DEFUN([gl_STRING_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS], [ GNULIB_EXPLICIT_BZERO=0; AC_SUBST([GNULIB_EXPLICIT_BZERO]) GNULIB_FFSL=0; AC_SUBST([GNULIB_FFSL]) GNULIB_FFSLL=0; AC_SUBST([GNULIB_FFSLL]) GNULIB_MEMCHR=0; AC_SUBST([GNULIB_MEMCHR]) GNULIB_MEMMEM=0; AC_SUBST([GNULIB_MEMMEM]) GNULIB_MEMPCPY=0; AC_SUBST([GNULIB_MEMPCPY]) GNULIB_MEMRCHR=0; AC_SUBST([GNULIB_MEMRCHR]) GNULIB_RAWMEMCHR=0; AC_SUBST([GNULIB_RAWMEMCHR]) GNULIB_STPCPY=0; AC_SUBST([GNULIB_STPCPY]) GNULIB_STPNCPY=0; AC_SUBST([GNULIB_STPNCPY]) GNULIB_STRCHRNUL=0; AC_SUBST([GNULIB_STRCHRNUL]) GNULIB_STRDUP=0; AC_SUBST([GNULIB_STRDUP]) GNULIB_STRNCAT=0; AC_SUBST([GNULIB_STRNCAT]) GNULIB_STRNDUP=0; AC_SUBST([GNULIB_STRNDUP]) GNULIB_STRNLEN=0; AC_SUBST([GNULIB_STRNLEN]) GNULIB_STRPBRK=0; AC_SUBST([GNULIB_STRPBRK]) GNULIB_STRSEP=0; AC_SUBST([GNULIB_STRSEP]) GNULIB_STRSTR=0; AC_SUBST([GNULIB_STRSTR]) GNULIB_STRCASESTR=0; AC_SUBST([GNULIB_STRCASESTR]) GNULIB_STRTOK_R=0; AC_SUBST([GNULIB_STRTOK_R]) GNULIB_MBSLEN=0; AC_SUBST([GNULIB_MBSLEN]) GNULIB_MBSNLEN=0; AC_SUBST([GNULIB_MBSNLEN]) GNULIB_MBSCHR=0; AC_SUBST([GNULIB_MBSCHR]) GNULIB_MBSRCHR=0; AC_SUBST([GNULIB_MBSRCHR]) GNULIB_MBSSTR=0; AC_SUBST([GNULIB_MBSSTR]) GNULIB_MBSCASECMP=0; AC_SUBST([GNULIB_MBSCASECMP]) GNULIB_MBSNCASECMP=0; AC_SUBST([GNULIB_MBSNCASECMP]) GNULIB_MBSPCASECMP=0; AC_SUBST([GNULIB_MBSPCASECMP]) GNULIB_MBSCASESTR=0; AC_SUBST([GNULIB_MBSCASESTR]) GNULIB_MBSCSPN=0; AC_SUBST([GNULIB_MBSCSPN]) GNULIB_MBSPBRK=0; AC_SUBST([GNULIB_MBSPBRK]) GNULIB_MBSSPN=0; AC_SUBST([GNULIB_MBSSPN]) GNULIB_MBSSEP=0; AC_SUBST([GNULIB_MBSSEP]) GNULIB_MBSTOK_R=0; AC_SUBST([GNULIB_MBSTOK_R]) GNULIB_STRERROR=0; AC_SUBST([GNULIB_STRERROR]) GNULIB_STRERROR_R=0; AC_SUBST([GNULIB_STRERROR_R]) GNULIB_STRSIGNAL=0; AC_SUBST([GNULIB_STRSIGNAL]) GNULIB_STRVERSCMP=0; AC_SUBST([GNULIB_STRVERSCMP]) HAVE_MBSLEN=0; AC_SUBST([HAVE_MBSLEN]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_EXPLICIT_BZERO=1; AC_SUBST([HAVE_EXPLICIT_BZERO]) HAVE_FFSL=1; AC_SUBST([HAVE_FFSL]) HAVE_FFSLL=1; AC_SUBST([HAVE_FFSLL]) HAVE_MEMCHR=1; AC_SUBST([HAVE_MEMCHR]) HAVE_DECL_MEMMEM=1; AC_SUBST([HAVE_DECL_MEMMEM]) HAVE_MEMPCPY=1; AC_SUBST([HAVE_MEMPCPY]) HAVE_DECL_MEMRCHR=1; AC_SUBST([HAVE_DECL_MEMRCHR]) HAVE_RAWMEMCHR=1; AC_SUBST([HAVE_RAWMEMCHR]) HAVE_STPCPY=1; AC_SUBST([HAVE_STPCPY]) HAVE_STPNCPY=1; AC_SUBST([HAVE_STPNCPY]) HAVE_STRCHRNUL=1; AC_SUBST([HAVE_STRCHRNUL]) HAVE_DECL_STRDUP=1; AC_SUBST([HAVE_DECL_STRDUP]) HAVE_DECL_STRNDUP=1; AC_SUBST([HAVE_DECL_STRNDUP]) HAVE_DECL_STRNLEN=1; AC_SUBST([HAVE_DECL_STRNLEN]) HAVE_STRPBRK=1; AC_SUBST([HAVE_STRPBRK]) HAVE_STRSEP=1; AC_SUBST([HAVE_STRSEP]) HAVE_STRCASESTR=1; AC_SUBST([HAVE_STRCASESTR]) HAVE_DECL_STRTOK_R=1; AC_SUBST([HAVE_DECL_STRTOK_R]) HAVE_DECL_STRERROR_R=1; AC_SUBST([HAVE_DECL_STRERROR_R]) HAVE_DECL_STRSIGNAL=1; AC_SUBST([HAVE_DECL_STRSIGNAL]) HAVE_STRVERSCMP=1; AC_SUBST([HAVE_STRVERSCMP]) REPLACE_MEMCHR=0; AC_SUBST([REPLACE_MEMCHR]) REPLACE_MEMMEM=0; AC_SUBST([REPLACE_MEMMEM]) REPLACE_STPNCPY=0; AC_SUBST([REPLACE_STPNCPY]) REPLACE_STRCHRNUL=0; AC_SUBST([REPLACE_STRCHRNUL]) REPLACE_STRDUP=0; AC_SUBST([REPLACE_STRDUP]) REPLACE_STRNCAT=0; AC_SUBST([REPLACE_STRNCAT]) REPLACE_STRNDUP=0; AC_SUBST([REPLACE_STRNDUP]) REPLACE_STRNLEN=0; AC_SUBST([REPLACE_STRNLEN]) REPLACE_STRSTR=0; AC_SUBST([REPLACE_STRSTR]) REPLACE_STRCASESTR=0; AC_SUBST([REPLACE_STRCASESTR]) REPLACE_STRTOK_R=0; AC_SUBST([REPLACE_STRTOK_R]) REPLACE_STRERROR=0; AC_SUBST([REPLACE_STRERROR]) REPLACE_STRERROR_R=0; AC_SUBST([REPLACE_STRERROR_R]) REPLACE_STRSIGNAL=0; AC_SUBST([REPLACE_STRSIGNAL]) UNDEFINE_STRTOK_R=0; AC_SUBST([UNDEFINE_STRTOK_R]) ]) # Configure a replacement for . # serial 6 # Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_HEADER_STRINGS_H], [ dnl Use AC_REQUIRE here, so that the default behavior below is expanded dnl once only, before all statements that occur in other macros. AC_REQUIRE([gl_HEADER_STRINGS_H_BODY]) ]) AC_DEFUN([gl_HEADER_STRINGS_H_BODY], [ AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS]) gl_CHECK_NEXT_HEADERS([strings.h]) if test $ac_cv_header_strings_h = yes; then HAVE_STRINGS_H=1 else HAVE_STRINGS_H=0 fi AC_SUBST([HAVE_STRINGS_H]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[ /* Minix 3.1.8 has a bug: must be included before . */ #include #include ]], [ffs strcasecmp strncasecmp]) ]) AC_DEFUN([gl_STRINGS_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) ]) AC_DEFUN([gl_HEADER_STRINGS_H_DEFAULTS], [ GNULIB_FFS=0; AC_SUBST([GNULIB_FFS]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_FFS=1; AC_SUBST([HAVE_FFS]) HAVE_STRCASECMP=1; AC_SUBST([HAVE_STRCASECMP]) HAVE_DECL_STRNCASECMP=1; AC_SUBST([HAVE_DECL_STRNCASECMP]) ]) # strndup.m4 serial 22 dnl Copyright (C) 2002-2003, 2005-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STRNDUP], [ dnl Persuade glibc to declare strndup(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_CHECK_DECLS_ONCE([strndup]) AC_CHECK_FUNCS_ONCE([strndup]) if test $ac_cv_have_decl_strndup = no; then HAVE_DECL_STRNDUP=0 fi if test $ac_cv_func_strndup = yes; then HAVE_STRNDUP=1 # AIX 4.3.3, AIX 5.1 have a function that fails to add the terminating '\0'. AC_CACHE_CHECK([for working strndup], [gl_cv_func_strndup_works], [AC_RUN_IFELSE([ AC_LANG_PROGRAM([[#include #include ]], [[ #if !HAVE_DECL_STRNDUP extern #ifdef __cplusplus "C" #endif char *strndup (const char *, size_t); #endif int result; char *s; s = strndup ("some longer string", 15); free (s); s = strndup ("shorter string", 13); result = s[13] != '\0'; free (s); return result;]])], [gl_cv_func_strndup_works=yes], [gl_cv_func_strndup_works=no], [ changequote(,)dnl case $host_os in aix | aix[3-6]*) gl_cv_func_strndup_works="guessing no";; *) gl_cv_func_strndup_works="guessing yes";; esac changequote([,])dnl ])]) case $gl_cv_func_strndup_works in *no) REPLACE_STRNDUP=1 ;; esac else HAVE_STRNDUP=0 fi ]) # strnlen.m4 serial 13 dnl Copyright (C) 2002-2003, 2005-2007, 2009-2020 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STRNLEN], [ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) dnl Persuade glibc to declare strnlen(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CHECK_DECLS_ONCE([strnlen]) if test $ac_cv_have_decl_strnlen = no; then HAVE_DECL_STRNLEN=0 else m4_pushdef([AC_LIBOBJ], [:]) dnl Note: AC_FUNC_STRNLEN does AC_LIBOBJ([strnlen]). AC_FUNC_STRNLEN m4_popdef([AC_LIBOBJ]) if test $ac_cv_func_strnlen_working = no; then REPLACE_STRNLEN=1 fi fi ]) # Prerequisites of lib/strnlen.c. AC_DEFUN([gl_PREREQ_STRNLEN], [:]) # strtok_r.m4 serial 15 dnl Copyright (C) 2002-2004, 2006-2007, 2009-2020 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STRTOK_R], [ dnl The strtok_r() declaration in lib/string.in.h uses 'restrict'. AC_REQUIRE([AC_C_RESTRICT]) AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_FUNCS([strtok_r]) if test $ac_cv_func_strtok_r = yes; then HAVE_STRTOK_R=1 dnl glibc 2.7 has a bug in strtok_r that causes a segmentation fault dnl when the second argument to strtok_r is a constant string that has dnl exactly one byte and compiling with optimization. This bug is, for dnl example, present in the glibc 2.7-18 package in Debian "lenny". dnl See . AC_CACHE_CHECK([whether strtok_r works], [gl_cv_func_strtok_r_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM([[ #ifndef __OPTIMIZE__ # define __OPTIMIZE__ 1 #endif #undef __OPTIMIZE_SIZE__ #undef __NO_INLINE__ #include #include ]], [[static const char dummy[] = "\177\01a"; char delimiters[] = "xxxxxxxx"; char *save_ptr = (char *) dummy; strtok_r (delimiters, "x", &save_ptr); strtok_r (NULL, "x", &save_ptr); return 0; ]]) ], [gl_cv_func_strtok_r_works=yes], [gl_cv_func_strtok_r_works=no], [case "$host_os" in # Guess no on glibc systems. *-gnu* | gnu*) gl_cv_func_strtok_r_works="guessing no" ;; # Guess yes on native Windows. mingw*) gl_cv_func_strtok_r_works="guessing yes" ;; *) gl_cv_func_strtok_r_works="guessing yes" ;; esac ]) ]) case "$gl_cv_func_strtok_r_works" in *no) dnl We could set REPLACE_STRTOK_R=1 here, but it's only the macro dnl version in which is wrong. The code compiled dnl into libc is fine. UNDEFINE_STRTOK_R=1 ;; esac else HAVE_STRTOK_R=0 fi AC_CHECK_DECLS_ONCE([strtok_r]) if test $ac_cv_have_decl_strtok_r = no; then HAVE_DECL_STRTOK_R=0 fi ]) # Prerequisites of lib/strtok_r.c. AC_DEFUN([gl_PREREQ_STRTOK_R], [ : ]) # strverscmp.m4 serial 8 dnl Copyright (C) 2002, 2005-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STRVERSCMP], [ dnl Persuade glibc to declare strverscmp(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_CHECK_FUNCS([strverscmp]) if test $ac_cv_func_strverscmp = no; then HAVE_STRVERSCMP=0 fi ]) # Prerequisites of lib/strverscmp.c. AC_DEFUN([gl_PREREQ_STRVERSCMP], [ : ]) # serial 9 # See if we need to provide symlink replacement. dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Written by Eric Blake. AC_DEFUN([gl_FUNC_SYMLINK], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_FUNCS_ONCE([symlink]) dnl The best we can do on mingw is provide a dummy that always fails, so dnl that compilation can proceed with fewer ifdefs. On FreeBSD 7.2, AIX 7.1, dnl and Solaris 9, we want to fix a bug with trailing slash handling. if test $ac_cv_func_symlink = no; then HAVE_SYMLINK=0 else AC_CACHE_CHECK([whether symlink handles trailing slash correctly], [gl_cv_func_symlink_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[int result = 0; if (!symlink ("a", "conftest.link/")) result |= 1; if (symlink ("conftest.f", "conftest.lnk2")) result |= 2; else if (!symlink ("a", "conftest.lnk2/")) result |= 4; return result; ]])], [gl_cv_func_symlink_works=yes], [gl_cv_func_symlink_works=no], [case "$host_os" in # Guess yes on Linux systems. linux-* | linux) gl_cv_func_symlink_works="guessing yes" ;; # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_symlink_works="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_symlink_works="$gl_cross_guess_normal" ;; esac ]) rm -f conftest.f conftest.link conftest.lnk2]) case "$gl_cv_func_symlink_works" in *yes) ;; *) REPLACE_SYMLINK=1 ;; esac fi ]) # sys_ioctl_h.m4 serial 10 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Bruno Haible. AC_DEFUN([gl_SYS_IOCTL_H], [ dnl Use AC_REQUIRE here, so that the default behavior below is expanded dnl once only, before all statements that occur in other macros. AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS]) AC_CHECK_HEADERS_ONCE([sys/ioctl.h]) if test $ac_cv_header_sys_ioctl_h = yes; then HAVE_SYS_IOCTL_H=1 dnl Test whether declares ioctl(), or whether some other dnl header file, such as or , is needed for that. AC_CACHE_CHECK([whether declares ioctl], [gl_cv_decl_ioctl_in_sys_ioctl_h], [dnl We cannot use AC_CHECK_DECL because it produces its own messages. AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [AC_INCLUDES_DEFAULT([#include ])], [(void) ioctl;])], [gl_cv_decl_ioctl_in_sys_ioctl_h=yes], [gl_cv_decl_ioctl_in_sys_ioctl_h=no]) ]) else HAVE_SYS_IOCTL_H=0 fi AC_SUBST([HAVE_SYS_IOCTL_H]) dnl is always overridden, because of GNULIB_POSIXCHECK. gl_CHECK_NEXT_HEADERS([sys/ioctl.h]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include /* Some platforms declare ioctl in the wrong header. */ #if !(defined __GLIBC__ && !defined __UCLIBC__) # include #endif ]], [ioctl]) ]) AC_DEFUN([gl_SYS_IOCTL_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_SYS_IOCTL_H_DEFAULTS], [ GNULIB_IOCTL=0; AC_SUBST([GNULIB_IOCTL]) dnl Assume proper GNU behavior unless another module says otherwise. SYS_IOCTL_H_HAVE_WINSOCK2_H=0; AC_SUBST([SYS_IOCTL_H_HAVE_WINSOCK2_H]) SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0; AC_SUBST([SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS]) REPLACE_IOCTL=0; AC_SUBST([REPLACE_IOCTL]) ]) # sys_select_h.m4 serial 20 dnl Copyright (C) 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_HEADER_SYS_SELECT], [ AC_REQUIRE([AC_C_RESTRICT]) AC_REQUIRE([gl_SYS_SELECT_H_DEFAULTS]) AC_CACHE_CHECK([whether is self-contained], [gl_cv_header_sys_select_h_selfcontained], [ dnl Test against two bugs: dnl 1. On many platforms, assumes prior inclusion of dnl . dnl 2. On OSF/1 4.0, provides only a forward declaration dnl of 'struct timeval', and no definition of this type. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]], [[struct timeval b;]])], [gl_cv_header_sys_select_h_selfcontained=yes], [gl_cv_header_sys_select_h_selfcontained=no]) dnl Test against another bug: dnl 3. On Solaris 10, provides an FD_ZERO implementation dnl that relies on memset(), but without including . if test $gl_cv_header_sys_select_h_selfcontained = yes; then AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#include ]], [[int memset; int bzero;]]) ], [AC_LINK_IFELSE( [AC_LANG_PROGRAM([[#include ]], [[ #undef memset #define memset nonexistent_memset extern #ifdef __cplusplus "C" #endif void *memset (void *, int, unsigned long); #undef bzero #define bzero nonexistent_bzero extern #ifdef __cplusplus "C" #endif void bzero (void *, unsigned long); fd_set fds; FD_ZERO (&fds); ]]) ], [], [gl_cv_header_sys_select_h_selfcontained=no]) ]) fi ]) dnl is always overridden, because of GNULIB_POSIXCHECK. gl_CHECK_NEXT_HEADERS([sys/select.h]) if test $ac_cv_header_sys_select_h = yes; then HAVE_SYS_SELECT_H=1 else HAVE_SYS_SELECT_H=0 fi AC_SUBST([HAVE_SYS_SELECT_H]) gl_PREREQ_SYS_H_WINSOCK2 dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[ /* Some systems require prerequisite headers. */ #include #if !(defined __GLIBC__ && !defined __UCLIBC__) && HAVE_SYS_TIME_H # include #endif #include ]], [pselect select]) ]) AC_DEFUN([gl_SYS_SELECT_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_SYS_SELECT_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_SYS_SELECT_H_DEFAULTS], [ GNULIB_PSELECT=0; AC_SUBST([GNULIB_PSELECT]) GNULIB_SELECT=0; AC_SUBST([GNULIB_SELECT]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_PSELECT=1; AC_SUBST([HAVE_PSELECT]) REPLACE_PSELECT=0; AC_SUBST([REPLACE_PSELECT]) REPLACE_SELECT=0; AC_SUBST([REPLACE_SELECT]) ]) # sys_socket_h.m4 serial 25 dnl Copyright (C) 2005-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Simon Josefsson. AC_DEFUN([gl_HEADER_SYS_SOCKET], [ AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl On OSF/1, the functions recv(), send(), recvfrom(), sendto() have dnl old-style declarations (with return type 'int' instead of 'ssize_t') dnl unless _POSIX_PII_SOCKET is defined. case "$host_os" in osf*) AC_DEFINE([_POSIX_PII_SOCKET], [1], [Define to 1 in order to get the POSIX compatible declarations of socket functions.]) ;; esac AC_CACHE_CHECK([whether is self-contained], [gl_cv_header_sys_socket_h_selfcontained], [ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]], [[]])], [gl_cv_header_sys_socket_h_selfcontained=yes], [gl_cv_header_sys_socket_h_selfcontained=no]) ]) if test $gl_cv_header_sys_socket_h_selfcontained = yes; then dnl If the shutdown function exists, should define dnl SHUT_RD, SHUT_WR, SHUT_RDWR. AC_CHECK_FUNCS([shutdown]) if test $ac_cv_func_shutdown = yes; then AC_CACHE_CHECK([whether defines the SHUT_* macros], [gl_cv_header_sys_socket_h_shut], [ AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#include ]], [[int a[] = { SHUT_RD, SHUT_WR, SHUT_RDWR };]])], [gl_cv_header_sys_socket_h_shut=yes], [gl_cv_header_sys_socket_h_shut=no]) ]) if test $gl_cv_header_sys_socket_h_shut = no; then SYS_SOCKET_H='sys/socket.h' fi fi fi # We need to check for ws2tcpip.h now. gl_PREREQ_SYS_H_SOCKET AC_CHECK_TYPES([struct sockaddr_storage, sa_family_t],,,[ /* sys/types.h is not needed according to POSIX, but the sys/socket.h in i386-unknown-freebsd4.10 and powerpc-apple-darwin5.5 required it. */ #include #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_WS2TCPIP_H #include #endif ]) if test $ac_cv_type_struct_sockaddr_storage = no; then HAVE_STRUCT_SOCKADDR_STORAGE=0 fi if test $ac_cv_type_sa_family_t = no; then HAVE_SA_FAMILY_T=0 fi if test $ac_cv_type_struct_sockaddr_storage != no; then AC_CHECK_MEMBERS([struct sockaddr_storage.ss_family], [], [HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=0], [#include #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_WS2TCPIP_H #include #endif ]) fi if test $HAVE_STRUCT_SOCKADDR_STORAGE = 0 || test $HAVE_SA_FAMILY_T = 0 \ || test $HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY = 0; then SYS_SOCKET_H='sys/socket.h' fi gl_PREREQ_SYS_H_WINSOCK2 dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[ /* Some systems require prerequisite headers. */ #include #include ]], [socket connect accept bind getpeername getsockname getsockopt listen recv send recvfrom sendto setsockopt shutdown accept4]) AC_REQUIRE([AC_C_RESTRICT]) ]) AC_DEFUN([gl_PREREQ_SYS_H_SOCKET], [ dnl Check prerequisites of the replacement. AC_REQUIRE([gl_CHECK_SOCKET_HEADERS]) gl_CHECK_NEXT_HEADERS([sys/socket.h]) if test $ac_cv_header_sys_socket_h = yes; then HAVE_SYS_SOCKET_H=1 else HAVE_SYS_SOCKET_H=0 fi AC_SUBST([HAVE_SYS_SOCKET_H]) gl_PREREQ_SYS_H_WS2TCPIP ]) # Common prerequisites of the replacement and of the # replacement. # Sets and substitutes HAVE_WINSOCK2_H. AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2], [ m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])]) m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])]) AC_CHECK_HEADERS_ONCE([sys/socket.h]) if test $ac_cv_header_sys_socket_h != yes; then dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make dnl the check for those headers unconditional; yet cygwin reports dnl that the headers are present but cannot be compiled (since on dnl cygwin, all socket information should come from sys/socket.h). AC_CHECK_HEADERS([winsock2.h]) fi if test "$ac_cv_header_winsock2_h" = yes; then HAVE_WINSOCK2_H=1 UNISTD_H_HAVE_WINSOCK2_H=1 SYS_IOCTL_H_HAVE_WINSOCK2_H=1 else HAVE_WINSOCK2_H=0 fi AC_SUBST([HAVE_WINSOCK2_H]) ]) # Common prerequisites of the replacement and of the # replacement. # Sets and substitutes HAVE_WS2TCPIP_H. AC_DEFUN([gl_PREREQ_SYS_H_WS2TCPIP], [ AC_REQUIRE([gl_CHECK_SOCKET_HEADERS]) if test $ac_cv_header_sys_socket_h = yes; then HAVE_WS2TCPIP_H=0 else if test $ac_cv_header_ws2tcpip_h = yes; then HAVE_WS2TCPIP_H=1 else HAVE_WS2TCPIP_H=0 fi fi AC_SUBST([HAVE_WS2TCPIP_H]) ]) AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS], [ GNULIB_SOCKET=0; AC_SUBST([GNULIB_SOCKET]) GNULIB_CONNECT=0; AC_SUBST([GNULIB_CONNECT]) GNULIB_ACCEPT=0; AC_SUBST([GNULIB_ACCEPT]) GNULIB_BIND=0; AC_SUBST([GNULIB_BIND]) GNULIB_GETPEERNAME=0; AC_SUBST([GNULIB_GETPEERNAME]) GNULIB_GETSOCKNAME=0; AC_SUBST([GNULIB_GETSOCKNAME]) GNULIB_GETSOCKOPT=0; AC_SUBST([GNULIB_GETSOCKOPT]) GNULIB_LISTEN=0; AC_SUBST([GNULIB_LISTEN]) GNULIB_RECV=0; AC_SUBST([GNULIB_RECV]) GNULIB_SEND=0; AC_SUBST([GNULIB_SEND]) GNULIB_RECVFROM=0; AC_SUBST([GNULIB_RECVFROM]) GNULIB_SENDTO=0; AC_SUBST([GNULIB_SENDTO]) GNULIB_SETSOCKOPT=0; AC_SUBST([GNULIB_SETSOCKOPT]) GNULIB_SHUTDOWN=0; AC_SUBST([GNULIB_SHUTDOWN]) GNULIB_ACCEPT4=0; AC_SUBST([GNULIB_ACCEPT4]) HAVE_STRUCT_SOCKADDR_STORAGE=1; AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE]) HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=1; AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY]) HAVE_SA_FAMILY_T=1; AC_SUBST([HAVE_SA_FAMILY_T]) HAVE_ACCEPT4=1; AC_SUBST([HAVE_ACCEPT4]) ]) # sys_stat_h.m4 serial 33 -*- Autoconf -*- dnl Copyright (C) 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Eric Blake. dnl Provide a GNU-like . AC_DEFUN([gl_HEADER_SYS_STAT_H], [ AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) dnl Check for broken stat macros. AC_REQUIRE([AC_HEADER_STAT]) gl_CHECK_NEXT_HEADERS([sys/stat.h]) dnl Ensure the type mode_t gets defined. AC_REQUIRE([AC_TYPE_MODE_T]) dnl Whether to enable precise timestamps in 'struct stat'. m4_ifdef([gl_WINDOWS_STAT_TIMESPEC], [ AC_REQUIRE([gl_WINDOWS_STAT_TIMESPEC]) ], [ WINDOWS_STAT_TIMESPEC=0 ]) AC_SUBST([WINDOWS_STAT_TIMESPEC]) dnl Whether to ensure that struct stat.st_size is 64-bit wide. m4_ifdef([gl_LARGEFILE], [ AC_REQUIRE([gl_LARGEFILE]) ], [ WINDOWS_64_BIT_ST_SIZE=0 ]) AC_SUBST([WINDOWS_64_BIT_ST_SIZE]) dnl Define types that are supposed to be defined in or dnl . AC_CHECK_TYPE([nlink_t], [], [AC_DEFINE([nlink_t], [int], [Define to the type of st_nlink in struct stat, or a supertype.])], [#include #include ]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[#include ]], [fchmodat fstat fstatat futimens lchmod lstat mkdirat mkfifo mkfifoat mknod mknodat stat utimensat]) AC_REQUIRE([AC_C_RESTRICT]) ]) AC_DEFUN([gl_SYS_STAT_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_SYS_STAT_H_DEFAULTS], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR GNULIB_FCHMODAT=0; AC_SUBST([GNULIB_FCHMODAT]) GNULIB_FSTAT=0; AC_SUBST([GNULIB_FSTAT]) GNULIB_FSTATAT=0; AC_SUBST([GNULIB_FSTATAT]) GNULIB_FUTIMENS=0; AC_SUBST([GNULIB_FUTIMENS]) GNULIB_LCHMOD=0; AC_SUBST([GNULIB_LCHMOD]) GNULIB_LSTAT=0; AC_SUBST([GNULIB_LSTAT]) GNULIB_MKDIRAT=0; AC_SUBST([GNULIB_MKDIRAT]) GNULIB_MKFIFO=0; AC_SUBST([GNULIB_MKFIFO]) GNULIB_MKFIFOAT=0; AC_SUBST([GNULIB_MKFIFOAT]) GNULIB_MKNOD=0; AC_SUBST([GNULIB_MKNOD]) GNULIB_MKNODAT=0; AC_SUBST([GNULIB_MKNODAT]) GNULIB_STAT=0; AC_SUBST([GNULIB_STAT]) GNULIB_UTIMENSAT=0; AC_SUBST([GNULIB_UTIMENSAT]) GNULIB_OVERRIDES_STRUCT_STAT=0; AC_SUBST([GNULIB_OVERRIDES_STRUCT_STAT]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_FCHMODAT=1; AC_SUBST([HAVE_FCHMODAT]) HAVE_FSTATAT=1; AC_SUBST([HAVE_FSTATAT]) HAVE_FUTIMENS=1; AC_SUBST([HAVE_FUTIMENS]) HAVE_LCHMOD=1; AC_SUBST([HAVE_LCHMOD]) HAVE_LSTAT=1; AC_SUBST([HAVE_LSTAT]) HAVE_MKDIRAT=1; AC_SUBST([HAVE_MKDIRAT]) HAVE_MKFIFO=1; AC_SUBST([HAVE_MKFIFO]) HAVE_MKFIFOAT=1; AC_SUBST([HAVE_MKFIFOAT]) HAVE_MKNOD=1; AC_SUBST([HAVE_MKNOD]) HAVE_MKNODAT=1; AC_SUBST([HAVE_MKNODAT]) HAVE_UTIMENSAT=1; AC_SUBST([HAVE_UTIMENSAT]) REPLACE_FCHMODAT=0; AC_SUBST([REPLACE_FCHMODAT]) REPLACE_FSTAT=0; AC_SUBST([REPLACE_FSTAT]) REPLACE_FSTATAT=0; AC_SUBST([REPLACE_FSTATAT]) REPLACE_FUTIMENS=0; AC_SUBST([REPLACE_FUTIMENS]) REPLACE_LSTAT=0; AC_SUBST([REPLACE_LSTAT]) REPLACE_MKDIR=0; AC_SUBST([REPLACE_MKDIR]) REPLACE_MKFIFO=0; AC_SUBST([REPLACE_MKFIFO]) REPLACE_MKNOD=0; AC_SUBST([REPLACE_MKNOD]) REPLACE_STAT=0; AC_SUBST([REPLACE_STAT]) REPLACE_UTIMENSAT=0; AC_SUBST([REPLACE_UTIMENSAT]) ]) # Configure a replacement for . # serial 9 # Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # Written by Paul Eggert and Martin Lambers. AC_DEFUN([gl_HEADER_SYS_TIME_H], [ dnl Use AC_REQUIRE here, so that the REPLACE_GETTIMEOFDAY=0 statement dnl below is expanded once only, before all REPLACE_GETTIMEOFDAY=1 dnl statements that occur in other macros. AC_REQUIRE([gl_HEADER_SYS_TIME_H_BODY]) ]) AC_DEFUN([gl_HEADER_SYS_TIME_H_BODY], [ AC_REQUIRE([AC_C_RESTRICT]) AC_REQUIRE([gl_HEADER_SYS_TIME_H_DEFAULTS]) AC_CHECK_HEADERS_ONCE([sys/time.h]) gl_CHECK_NEXT_HEADERS([sys/time.h]) if test $ac_cv_header_sys_time_h != yes; then HAVE_SYS_TIME_H=0 fi dnl On native Windows with MSVC, 'struct timeval' is defined in dnl only. So include that header in the list. gl_PREREQ_SYS_H_WINSOCK2 AC_CACHE_CHECK([for struct timeval], [gl_cv_sys_struct_timeval], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#if HAVE_SYS_TIME_H #include #endif #include #if HAVE_WINSOCK2_H # include #endif ]], [[static struct timeval x; x.tv_sec = x.tv_usec;]])], [gl_cv_sys_struct_timeval=yes], [gl_cv_sys_struct_timeval=no]) ]) if test $gl_cv_sys_struct_timeval != yes; then HAVE_STRUCT_TIMEVAL=0 else dnl On native Windows with a 64-bit 'time_t', 'struct timeval' is defined dnl (in and for mingw64, in only dnl for MSVC) with a tv_sec field of type 'long' (32-bit!), which is dnl smaller than the 'time_t' type mandated by POSIX. dnl On OpenBSD 5.1 amd64, tv_sec is 64 bits and time_t 32 bits, but dnl that is good enough. AC_CACHE_CHECK([for wide-enough struct timeval.tv_sec member], [gl_cv_sys_struct_timeval_tv_sec], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#if HAVE_SYS_TIME_H #include #endif #include #if HAVE_WINSOCK2_H # include #endif ]], [[static struct timeval x; typedef int verify_tv_sec_type[ sizeof (time_t) <= sizeof x.tv_sec ? 1 : -1 ]; ]])], [gl_cv_sys_struct_timeval_tv_sec=yes], [gl_cv_sys_struct_timeval_tv_sec=no]) ]) if test $gl_cv_sys_struct_timeval_tv_sec != yes; then REPLACE_STRUCT_TIMEVAL=1 fi fi dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[ #if HAVE_SYS_TIME_H # include #endif #include ]], [gettimeofday]) ]) AC_DEFUN([gl_SYS_TIME_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_HEADER_SYS_TIME_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_HEADER_SYS_TIME_H_DEFAULTS], [ GNULIB_GETTIMEOFDAY=0; AC_SUBST([GNULIB_GETTIMEOFDAY]) dnl Assume POSIX behavior unless another module says otherwise. HAVE_GETTIMEOFDAY=1; AC_SUBST([HAVE_GETTIMEOFDAY]) HAVE_STRUCT_TIMEVAL=1; AC_SUBST([HAVE_STRUCT_TIMEVAL]) HAVE_SYS_TIME_H=1; AC_SUBST([HAVE_SYS_TIME_H]) REPLACE_GETTIMEOFDAY=0; AC_SUBST([REPLACE_GETTIMEOFDAY]) REPLACE_STRUCT_TIMEVAL=0; AC_SUBST([REPLACE_STRUCT_TIMEVAL]) ]) # sys_types_h.m4 serial 9 dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN_ONCE([gl_SYS_TYPES_H], [ dnl Use sane struct stat types in OpenVMS 8.2 and later. AC_DEFINE([_USE_STD_STAT], 1, [For standard stat data types on VMS.]) AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS]) gl_NEXT_HEADERS([sys/types.h]) dnl Ensure the type pid_t gets defined. AC_REQUIRE([AC_TYPE_PID_T]) dnl Ensure the type mode_t gets defined. AC_REQUIRE([AC_TYPE_MODE_T]) dnl Whether to override the 'off_t' type. AC_REQUIRE([gl_TYPE_OFF_T]) dnl Whether to override the 'dev_t' and 'ino_t' types. m4_ifdef([gl_WINDOWS_STAT_INODES], [ AC_REQUIRE([gl_WINDOWS_STAT_INODES]) ], [ WINDOWS_STAT_INODES=0 ]) AC_SUBST([WINDOWS_STAT_INODES]) ]) AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS], [ ]) # This works around a buggy version in autoconf <= 2.69. # See m4_version_prereq([2.70], [], [ # This is taken from the following Autoconf patch: # https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=e17a30e987d7ee695fb4294a82d987ec3dc9b974 m4_undefine([AC_HEADER_MAJOR]) AC_DEFUN([AC_HEADER_MAJOR], [AC_CHECK_HEADERS_ONCE([sys/types.h]) AC_CHECK_HEADER([sys/mkdev.h], [AC_DEFINE([MAJOR_IN_MKDEV], [1], [Define to 1 if `major', `minor', and `makedev' are declared in .])]) if test $ac_cv_header_sys_mkdev_h = no; then AC_CHECK_HEADER([sys/sysmacros.h], [AC_DEFINE([MAJOR_IN_SYSMACROS], [1], [Define to 1 if `major', `minor', and `makedev' are declared in .])]) fi ]) ]) # sys_uio_h.m4 serial 1 dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_HEADER_SYS_UIO], [ AC_REQUIRE([gl_SYS_UIO_H_DEFAULTS]) dnl is always overridden, because of GNULIB_POSIXCHECK. gl_CHECK_NEXT_HEADERS([sys/uio.h]) if test $ac_cv_header_sys_uio_h = yes; then HAVE_SYS_UIO_H=1 else HAVE_SYS_UIO_H=0 fi AC_SUBST([HAVE_SYS_UIO_H]) ]) AC_DEFUN([gl_SYS_UIO_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_SYS_UIO_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_SYS_UIO_H_DEFAULTS], [ ]) # thread.m4 serial 3 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_THREAD], [ AC_REQUIRE([gl_THREADLIB]) if test $gl_threads_api = posix; then gl_save_LIBS="$LIBS" LIBS="$LIBS $LIBMULTITHREAD" AC_CHECK_FUNCS([pthread_atfork]) LIBS="$gl_save_LIBS" fi ]) # threadlib.m4 serial 27 dnl Copyright (C) 2005-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. AC_PREREQ([2.60]) dnl The general structure of the multithreading modules in gnulib is that we dnl have three set of modules: dnl dnl * POSIX API: dnl pthread, which combines dnl pthread-h dnl pthread-thread dnl pthread-once dnl pthread-mutex dnl pthread-rwlock dnl pthread-cond dnl pthread-tss dnl pthread-spin dnl sched_yield dnl dnl * ISO C API: dnl threads, which combines dnl threads-h dnl thrd dnl mtx dnl cnd dnl tss dnl dnl * Gnulib API, with an implementation that can be chosen at configure dnl time through the option --enable-threads=... dnl thread dnl lock dnl cond dnl tls dnl yield dnl dnl They are independent, except for the fact that dnl - the implementation of the ISO C API may use the POSIX (or some other dnl platform dependent) API, dnl - the implementation of the Gnulib API may use the POSIX or ISO C or dnl some other platform dependent API, depending on the --enable-threads dnl option. dnl dnl This file contains macros for all of these APIs! dnl ============================================================================ dnl Macros for all thread APIs AC_DEFUN([gl_ANYTHREADLIB_EARLY], [ AC_REQUIRE([AC_CANONICAL_HOST]) if test -z "$gl_anythreadlib_early_done"; then case "$host_os" in osf*) # On OSF/1, the compiler needs the flag -D_REENTRANT so that it # groks . cc also understands the flag -pthread, but # we don't use it because 1. gcc-2.95 doesn't understand -pthread, # 2. putting a flag into CPPFLAGS that has an effect on the linker # causes the AC_LINK_IFELSE test below to succeed unexpectedly, # leading to wrong values of LIBTHREAD and LTLIBTHREAD. CPPFLAGS="$CPPFLAGS -D_REENTRANT" ;; esac # Some systems optimize for single-threaded programs by default, and # need special flags to disable these optimizations. For example, the # definition of 'errno' in . case "$host_os" in aix* | freebsd*) CPPFLAGS="$CPPFLAGS -D_THREAD_SAFE" ;; solaris*) CPPFLAGS="$CPPFLAGS -D_REENTRANT" ;; esac gl_anythreadlib_early_done=done fi ]) dnl Checks whether the compiler and linker support weak declarations of symbols. AC_DEFUN([gl_WEAK_SYMBOLS], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_CACHE_CHECK([whether imported symbols can be declared weak], [gl_cv_have_weak], [gl_cv_have_weak=no dnl First, test whether the compiler accepts it syntactically. AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[extern void xyzzy (); #pragma weak xyzzy]], [[xyzzy();]])], [gl_cv_have_weak=maybe]) if test $gl_cv_have_weak = maybe; then dnl Second, test whether it actually works. On Cygwin 1.7.2, with dnl gcc 4.3, symbols declared weak always evaluate to the address 0. AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #pragma weak fputs int main () { return (fputs == NULL); }]])], [gl_cv_have_weak=yes], [gl_cv_have_weak=no], [dnl When cross-compiling, assume that only ELF platforms support dnl weak symbols. AC_EGREP_CPP([Extensible Linking Format], [#ifdef __ELF__ Extensible Linking Format #endif ], [gl_cv_have_weak="guessing yes"], [gl_cv_have_weak="guessing no"]) ]) fi dnl But when linking statically, weak symbols don't work. case " $LDFLAGS " in *" -static "*) gl_cv_have_weak=no ;; esac dnl Test for a bug in FreeBSD 11: A link error occurs when using a weak dnl symbol and linking against a shared library that has a dependency on dnl the shared library that defines the symbol. case "$gl_cv_have_weak" in *yes) case "$host_os" in freebsd* | dragonfly*) : > conftest1.c $CC $CPPFLAGS $CFLAGS $LDFLAGS -fPIC -shared -o libempty.so conftest1.c -lpthread >&AS_MESSAGE_LOG_FD 2>&1 cat < conftest2.c #include #pragma weak pthread_mutexattr_gettype int main () { return (pthread_mutexattr_gettype != NULL); } EOF $CC $CPPFLAGS $CFLAGS $LDFLAGS -o conftest conftest2.c libempty.so >&AS_MESSAGE_LOG_FD 2>&1 \ || gl_cv_have_weak=no rm -f conftest1.c libempty.so conftest2.c conftest ;; esac ;; esac ]) case "$gl_cv_have_weak" in *yes) AC_DEFINE([HAVE_WEAK_SYMBOLS], [1], [Define to 1 if the compiler and linker support weak declarations of symbols.]) ;; esac ]) dnl ============================================================================ dnl Macros for the POSIX API dnl gl_PTHREADLIB dnl ------------- dnl Tests for the libraries needs for using the POSIX threads API. dnl Sets the variable LIBPTHREAD to the linker options for use in a Makefile. dnl Sets the variable LIBPMULTITHREAD, for programs that really need dnl multithread functionality. The difference between LIBPTHREAD and dnl LIBPMULTITHREAD is that on platforms supporting weak symbols, typically dnl LIBPTHREAD is empty whereas LIBPMULTITHREAD is not. dnl Sets the variable LIB_SCHED_YIELD to the linker options needed to use the dnl sched_yield() function. dnl Adds to CPPFLAGS the flag -D_REENTRANT or -D_THREAD_SAFE if needed for dnl multithread-safe programs. dnl Defines the C macro HAVE_PTHREAD_API if (at least parts of) the POSIX dnl threads API is available. dnl The guts of gl_PTHREADLIB. Needs to be expanded only once. AC_DEFUN([gl_PTHREADLIB_BODY], [ AC_REQUIRE([gl_ANYTHREADLIB_EARLY]) if test -z "$gl_pthreadlib_body_done"; then gl_pthread_api=no LIBPTHREAD= LIBPMULTITHREAD= # On OSF/1, the compiler needs the flag -pthread or -D_REENTRANT so that # it groks . It's added above, in gl_ANYTHREADLIB_EARLY. AC_CHECK_HEADER([pthread.h], [gl_have_pthread_h=yes], [gl_have_pthread_h=no]) if test "$gl_have_pthread_h" = yes; then # Other possible tests: # -lpthreads (FSU threads, PCthreads) # -lgthreads # Test whether both pthread_mutex_lock and pthread_mutexattr_init exist # in libc. IRIX 6.5 has the first one in both libc and libpthread, but # the second one only in libpthread, and lock.c needs it. # # If -pthread works, prefer it to -lpthread, since Ubuntu 14.04 # needs -pthread for some reason. See: # https://lists.gnu.org/r/bug-gnulib/2014-09/msg00023.html save_LIBS=$LIBS for gl_pthread in '' '-pthread'; do LIBS="$LIBS $gl_pthread" AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include pthread_mutex_t m; pthread_mutexattr_t ma; ]], [[pthread_mutex_lock (&m); pthread_mutexattr_init (&ma);]])], [gl_pthread_api=yes LIBPTHREAD=$gl_pthread LIBPMULTITHREAD=$gl_pthread]) LIBS=$save_LIBS test $gl_pthread_api = yes && break done # Test for libpthread by looking for pthread_kill. (Not pthread_self, # since it is defined as a macro on OSF/1.) if test $gl_pthread_api = yes && test -z "$LIBPTHREAD"; then # The program links fine without libpthread. But it may actually # need to link with libpthread in order to create multiple threads. AC_CHECK_LIB([pthread], [pthread_kill], [LIBPMULTITHREAD=-lpthread # On Solaris and HP-UX, most pthread functions exist also in libc. # Therefore pthread_in_use() needs to actually try to create a # thread: pthread_create from libc will fail, whereas # pthread_create will actually create a thread. # On Solaris 10 or newer, this test is no longer needed, because # libc contains the fully functional pthread functions. case "$host_os" in solaris | solaris2.[1-9] | solaris2.[1-9].* | hpux*) AC_DEFINE([PTHREAD_IN_USE_DETECTION_HARD], [1], [Define if the pthread_in_use() detection is hard.]) esac ]) elif test $gl_pthread_api != yes; then # Some library is needed. Try libpthread and libc_r. AC_CHECK_LIB([pthread], [pthread_kill], [gl_pthread_api=yes LIBPTHREAD=-lpthread LIBPMULTITHREAD=-lpthread]) if test $gl_pthread_api != yes; then # For FreeBSD 4. AC_CHECK_LIB([c_r], [pthread_kill], [gl_pthread_api=yes LIBPTHREAD=-lc_r LIBPMULTITHREAD=-lc_r]) fi fi fi AC_MSG_CHECKING([whether POSIX threads API is available]) AC_MSG_RESULT([$gl_pthread_api]) AC_SUBST([LIBPTHREAD]) AC_SUBST([LIBPMULTITHREAD]) if test $gl_pthread_api = yes; then AC_DEFINE([HAVE_PTHREAD_API], [1], [Define if you have the header and the POSIX threads API.]) fi dnl On some systems, sched_yield is in librt, rather than in libpthread. AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[sched_yield ();]])], [LIB_SCHED_YIELD= ], [dnl Solaris 7...10 has sched_yield in librt, not in libpthread or libc. AC_CHECK_LIB([rt], [sched_yield], [LIB_SCHED_YIELD=-lrt], [dnl Solaris 2.5.1, 2.6 has sched_yield in libposix4, not librt. AC_CHECK_LIB([posix4], [sched_yield], [LIB_SCHED_YIELD=-lposix4])]) ]) AC_SUBST([LIB_SCHED_YIELD]) gl_pthreadlib_body_done=done fi ]) AC_DEFUN([gl_PTHREADLIB], [ AC_REQUIRE([gl_ANYTHREADLIB_EARLY]) gl_PTHREADLIB_BODY ]) dnl ============================================================================ dnl Macros for the ISO C API dnl gl_STDTHREADLIB dnl --------------- dnl Tests for the libraries needs for using the ISO C threads API. dnl Sets the variable LIBSTDTHREAD to the linker options for use in a Makefile. dnl Adds to CPPFLAGS the flag -D_REENTRANT or -D_THREAD_SAFE if needed for dnl multithread-safe programs. dnl Defines the C macro HAVE_THREADS_H if (at least parts of) the ISO C threads dnl API is available. dnl The guts of gl_STDTHREADLIB. Needs to be expanded only once. AC_DEFUN([gl_STDTHREADLIB_BODY], [ AC_REQUIRE([gl_ANYTHREADLIB_EARLY]) AC_REQUIRE([AC_CANONICAL_HOST]) if test -z "$gl_stdthreadlib_body_done"; then AC_CHECK_HEADERS_ONCE([threads.h]) case "$host_os" in mingw*) LIBSTDTHREAD= ;; *) gl_PTHREADLIB_BODY if test $ac_cv_header_threads_h = yes; then dnl glibc >= 2.29 has thrd_create in libpthread. dnl FreeBSD >= 10 has thrd_create in libstdthreads; this library depends dnl on libpthread (for the symbol 'pthread_mutexattr_gettype'). dnl AIX >= 7.1 and Solaris >= 11.4 have thrd_create in libc. AC_CHECK_FUNCS([thrd_create]) if test $ac_cv_func_thrd_create = yes; then LIBSTDTHREAD= else AC_CHECK_LIB([stdthreads], [thrd_create], [ LIBSTDTHREAD='-lstdthreads -lpthread' ], [ dnl Guess that thrd_create is in libpthread. LIBSTDTHREAD="$LIBPMULTITHREAD" ]) fi else dnl Libraries needed by thrd.c, mtx.c, cnd.c, tss.c. LIBSTDTHREAD="$LIBPMULTITHREAD $LIB_SCHED_YIELD" fi ;; esac AC_SUBST([LIBSTDTHREAD]) AC_MSG_CHECKING([whether ISO C threads API is available]) AC_MSG_RESULT([$ac_cv_header_threads_h]) gl_stdthreadlib_body_done=done fi ]) AC_DEFUN([gl_STDTHREADLIB], [ AC_REQUIRE([gl_ANYTHREADLIB_EARLY]) gl_STDTHREADLIB_BODY ]) dnl ============================================================================ dnl Macros for the Gnulib API dnl gl_THREADLIB dnl ------------ dnl Tests for a multithreading library to be used. dnl If the configure.ac contains a definition of the gl_THREADLIB_DEFAULT_NO dnl (it must be placed before the invocation of gl_THREADLIB_EARLY!), then the dnl default is 'no', otherwise it is system dependent. In both cases, the user dnl can change the choice through the options --enable-threads=choice or dnl --disable-threads. dnl Defines at most one of the macros USE_ISOC_THREADS, USE_POSIX_THREADS, dnl USE_ISOC_AND_POSIX_THREADS, USE_WINDOWS_THREADS. dnl The choice --enable-threads=isoc+posix is available only on platforms that dnl have both the ISO C and the POSIX threads APIs. It has the effect of using dnl the ISO C API for most things and the POSIX API only for creating and dnl controlling threads (because there is no equivalent to pthread_atfork in dnl the ISO C API). dnl Sets the variables LIBTHREAD and LTLIBTHREAD to the linker options for use dnl in a Makefile (LIBTHREAD for use without libtool, LTLIBTHREAD for use with dnl libtool). dnl Sets the variables LIBMULTITHREAD and LTLIBMULTITHREAD similarly, for dnl programs that really need multithread functionality. The difference dnl between LIBTHREAD and LIBMULTITHREAD is that on platforms supporting weak dnl symbols, typically LIBTHREAD is empty whereas LIBMULTITHREAD is not. dnl Adds to CPPFLAGS the flag -D_REENTRANT or -D_THREAD_SAFE if needed for dnl multithread-safe programs. dnl Since support for GNU pth was removed, $LTLIBTHREAD and $LIBTHREAD have the dnl same value, and similarly $LTLIBMULTITHREAD and $LIBMULTITHREAD have the dnl same value. Only system libraries are needed. AC_DEFUN([gl_THREADLIB_EARLY], [ AC_REQUIRE([gl_THREADLIB_EARLY_BODY]) ]) dnl The guts of gl_THREADLIB_EARLY. Needs to be expanded only once. AC_DEFUN([gl_THREADLIB_EARLY_BODY], [ dnl Ordering constraints: This macro modifies CPPFLAGS in a way that dnl influences the result of the autoconf tests that test for *_unlocked dnl declarations, on AIX 5 at least. Therefore it must come early. AC_BEFORE([$0], [gl_FUNC_GLIBC_UNLOCKED_IO])dnl AC_BEFORE([$0], [gl_ARGP])dnl AC_REQUIRE([AC_CANONICAL_HOST]) dnl _GNU_SOURCE is needed for pthread_rwlock_t on glibc systems. AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl Check for multithreading. m4_ifdef([gl_THREADLIB_DEFAULT_NO], [m4_divert_text([DEFAULTS], [gl_use_threads_default=no])], [m4_divert_text([DEFAULTS], [gl_use_threads_default=])]) m4_divert_text([DEFAULTS], [gl_use_winpthreads_default=]) AC_ARG_ENABLE([threads], AC_HELP_STRING([--enable-threads={isoc|posix|isoc+posix|windows}], [specify multithreading API])m4_ifdef([gl_THREADLIB_DEFAULT_NO], [], [ AC_HELP_STRING([--disable-threads], [build without multithread safety])]), [gl_use_threads=$enableval], [if test -n "$gl_use_threads_default"; then gl_use_threads="$gl_use_threads_default" else changequote(,)dnl case "$host_os" in dnl Disable multithreading by default on OSF/1, because it interferes dnl with fork()/exec(): When msgexec is linked with -lpthread, its dnl child process gets an endless segmentation fault inside execvp(). osf*) gl_use_threads=no ;; dnl Disable multithreading by default on Cygwin 1.5.x, because it has dnl bugs that lead to endless loops or crashes. See dnl . cygwin*) case `uname -r` in 1.[0-5].*) gl_use_threads=no ;; *) gl_use_threads=yes ;; esac ;; dnl Obey gl_AVOID_WINPTHREAD on mingw. mingw*) case "$gl_use_winpthreads_default" in yes) gl_use_threads=posix ;; no) gl_use_threads=windows ;; *) gl_use_threads=yes ;; esac ;; *) gl_use_threads=yes ;; esac changequote([,])dnl fi ]) if test "$gl_use_threads" = yes \ || test "$gl_use_threads" = isoc \ || test "$gl_use_threads" = posix \ || test "$gl_use_threads" = isoc+posix; then # For using or : gl_ANYTHREADLIB_EARLY fi ]) dnl The guts of gl_THREADLIB. Needs to be expanded only once. AC_DEFUN([gl_THREADLIB_BODY], [ AC_REQUIRE([gl_THREADLIB_EARLY_BODY]) gl_threads_api=none LIBTHREAD= LTLIBTHREAD= LIBMULTITHREAD= LTLIBMULTITHREAD= if test "$gl_use_threads" != no; then dnl Check whether the compiler and linker support weak declarations. gl_WEAK_SYMBOLS if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then dnl If we use weak symbols to implement pthread_in_use / pth_in_use / dnl thread_in_use, we also need to test whether the ISO C 11 thrd_create dnl facility is in use. AC_CHECK_HEADERS_ONCE([threads.h]) : fi if test "$gl_use_threads" = isoc || test "$gl_use_threads" = isoc+posix; then AC_CHECK_HEADERS_ONCE([threads.h]) gl_have_isoc_threads="$ac_cv_header_threads_h" fi if test "$gl_use_threads" = yes \ || test "$gl_use_threads" = posix \ || test "$gl_use_threads" = isoc+posix; then gl_PTHREADLIB_BODY LIBTHREAD=$LIBPTHREAD LTLIBTHREAD=$LIBPTHREAD LIBMULTITHREAD=$LIBPMULTITHREAD LTLIBMULTITHREAD=$LIBPMULTITHREAD if test $gl_pthread_api = yes; then if test "$gl_use_threads" = isoc+posix && test "$gl_have_isoc_threads" = yes; then gl_threads_api='isoc+posix' AC_DEFINE([USE_ISOC_AND_POSIX_THREADS], [1], [Define if the combination of the ISO C and POSIX multithreading APIs can be used.]) LIBTHREAD= LTLIBTHREAD= else gl_threads_api=posix AC_DEFINE([USE_POSIX_THREADS], [1], [Define if the POSIX multithreading library can be used.]) if test -n "$LIBMULTITHREAD" || test -n "$LTLIBMULTITHREAD"; then if case "$gl_cv_have_weak" in *yes) true;; *) false;; esac; then AC_DEFINE([USE_POSIX_THREADS_WEAK], [1], [Define if references to the POSIX multithreading library should be made weak.]) LIBTHREAD= LTLIBTHREAD= fi fi fi fi fi if test $gl_threads_api = none; then if test "$gl_use_threads" = isoc && test "$gl_have_isoc_threads" = yes; then gl_STDTHREADLIB_BODY LIBTHREAD=$LIBSTDTHREAD LTLIBTHREAD=$LIBSTDTHREAD LIBMULTITHREAD=$LIBSTDTHREAD LTLIBMULTITHREAD=$LIBSTDTHREAD gl_threads_api=isoc AC_DEFINE([USE_ISOC_THREADS], [1], [Define if the ISO C multithreading library can be used.]) fi fi if test $gl_threads_api = none; then case "$gl_use_threads" in yes | windows | win32) # The 'win32' is for backward compatibility. if { case "$host_os" in mingw*) true;; *) false;; esac }; then gl_threads_api=windows AC_DEFINE([USE_WINDOWS_THREADS], [1], [Define if the native Windows multithreading API can be used.]) fi ;; esac fi fi AC_MSG_CHECKING([for multithread API to use]) AC_MSG_RESULT([$gl_threads_api]) AC_SUBST([LIBTHREAD]) AC_SUBST([LTLIBTHREAD]) AC_SUBST([LIBMULTITHREAD]) AC_SUBST([LTLIBMULTITHREAD]) ]) AC_DEFUN([gl_THREADLIB], [ AC_REQUIRE([gl_THREADLIB_EARLY]) AC_REQUIRE([gl_THREADLIB_BODY]) ]) dnl gl_DISABLE_THREADS dnl ------------------ dnl Sets the gl_THREADLIB default so that threads are not used by default. dnl The user can still override it at installation time, by using the dnl configure option '--enable-threads'. AC_DEFUN([gl_DISABLE_THREADS], [ m4_divert_text([INIT_PREPARE], [gl_use_threads_default=no]) ]) dnl gl_AVOID_WINPTHREAD dnl ------------------- dnl Sets the gl_THREADLIB default so that on mingw, a dependency to the dnl libwinpthread DLL (mingw-w64 winpthreads library) is avoided. dnl The user can still override it at installation time, by using the dnl configure option '--enable-threads'. AC_DEFUN([gl_AVOID_WINPTHREAD], [ m4_divert_text([INIT_PREPARE], [gl_use_winpthreads_default=no]) ]) dnl ============================================================================ dnl Survey of platforms: dnl dnl Platform Available Compiler Supports test-lock dnl flavours option weak result dnl --------------- --------- --------- -------- --------- dnl Linux 2.4/glibc posix -lpthread Y OK dnl dnl GNU Hurd/glibc posix dnl dnl Ubuntu 14.04 posix -pthread Y OK dnl dnl FreeBSD 5.3 posix -lc_r Y dnl posix -lkse ? Y dnl posix -lpthread ? Y dnl posix -lthr Y dnl dnl FreeBSD 5.2 posix -lc_r Y dnl posix -lkse Y dnl posix -lthr Y dnl dnl FreeBSD 4.0,4.10 posix -lc_r Y OK dnl dnl NetBSD 1.6 -- dnl dnl OpenBSD 3.4 posix -lpthread Y OK dnl dnl Mac OS X 10.[123] posix -lpthread Y OK dnl dnl Solaris 7,8,9 posix -lpthread Y Sol 7,8: 0.0; Sol 9: OK dnl dnl HP-UX 11 posix -lpthread N (cc) OK dnl Y (gcc) dnl dnl IRIX 6.5 posix -lpthread Y 0.5 dnl dnl AIX 4.3,5.1 posix -lpthread N AIX 4: 0.5; AIX 5: OK dnl dnl OSF/1 4.0,5.1 posix -pthread (cc) N OK dnl -lpthread (gcc) Y dnl dnl Cygwin posix -lpthread Y OK dnl dnl Mingw windows N OK dnl dnl BeOS 5 -- dnl dnl The test-lock result shows what happens if in test-lock.c EXPLICIT_YIELD is dnl turned off: dnl OK if all three tests terminate OK, dnl 0.5 if the first test terminates OK but the second one loops endlessly, dnl 0.0 if the first test already loops endlessly. # Configure a more-standard replacement for . # Copyright (C) 2000-2001, 2003-2007, 2009-2020 Free Software Foundation, Inc. # serial 12 # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # Written by Paul Eggert and Jim Meyering. AC_DEFUN([gl_HEADER_TIME_H], [ dnl Use AC_REQUIRE here, so that the default behavior below is expanded dnl once only, before all statements that occur in other macros. AC_REQUIRE([gl_HEADER_TIME_H_BODY]) ]) AC_DEFUN([gl_HEADER_TIME_H_BODY], [ AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) gl_NEXT_HEADERS([time.h]) AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC]) AC_REQUIRE([AC_C_RESTRICT]) ]) dnl Check whether 'struct timespec' is declared dnl in time.h, sys/time.h, pthread.h, or unistd.h. AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC], [ AC_CHECK_HEADERS_ONCE([sys/time.h]) AC_CACHE_CHECK([for struct timespec in ], [gl_cv_sys_struct_timespec_in_time_h], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], [gl_cv_sys_struct_timespec_in_time_h=yes], [gl_cv_sys_struct_timespec_in_time_h=no])]) TIME_H_DEFINES_STRUCT_TIMESPEC=0 SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=0 PTHREAD_H_DEFINES_STRUCT_TIMESPEC=0 UNISTD_H_DEFINES_STRUCT_TIMESPEC=0 if test $gl_cv_sys_struct_timespec_in_time_h = yes; then TIME_H_DEFINES_STRUCT_TIMESPEC=1 else AC_CACHE_CHECK([for struct timespec in ], [gl_cv_sys_struct_timespec_in_sys_time_h], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], [gl_cv_sys_struct_timespec_in_sys_time_h=yes], [gl_cv_sys_struct_timespec_in_sys_time_h=no])]) if test $gl_cv_sys_struct_timespec_in_sys_time_h = yes; then SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=1 else AC_CACHE_CHECK([for struct timespec in ], [gl_cv_sys_struct_timespec_in_pthread_h], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], [gl_cv_sys_struct_timespec_in_pthread_h=yes], [gl_cv_sys_struct_timespec_in_pthread_h=no])]) if test $gl_cv_sys_struct_timespec_in_pthread_h = yes; then PTHREAD_H_DEFINES_STRUCT_TIMESPEC=1 else AC_CACHE_CHECK([for struct timespec in ], [gl_cv_sys_struct_timespec_in_unistd_h], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[static struct timespec x; x.tv_sec = x.tv_nsec;]])], [gl_cv_sys_struct_timespec_in_unistd_h=yes], [gl_cv_sys_struct_timespec_in_unistd_h=no])]) if test $gl_cv_sys_struct_timespec_in_unistd_h = yes; then UNISTD_H_DEFINES_STRUCT_TIMESPEC=1 fi fi fi fi AC_SUBST([TIME_H_DEFINES_STRUCT_TIMESPEC]) AC_SUBST([SYS_TIME_H_DEFINES_STRUCT_TIMESPEC]) AC_SUBST([PTHREAD_H_DEFINES_STRUCT_TIMESPEC]) AC_SUBST([UNISTD_H_DEFINES_STRUCT_TIMESPEC]) ]) AC_DEFUN([gl_TIME_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS], [ GNULIB_CTIME=0; AC_SUBST([GNULIB_CTIME]) GNULIB_MKTIME=0; AC_SUBST([GNULIB_MKTIME]) GNULIB_LOCALTIME=0; AC_SUBST([GNULIB_LOCALTIME]) GNULIB_NANOSLEEP=0; AC_SUBST([GNULIB_NANOSLEEP]) GNULIB_STRFTIME=0; AC_SUBST([GNULIB_STRFTIME]) GNULIB_STRPTIME=0; AC_SUBST([GNULIB_STRPTIME]) GNULIB_TIMEGM=0; AC_SUBST([GNULIB_TIMEGM]) GNULIB_TIME_R=0; AC_SUBST([GNULIB_TIME_R]) GNULIB_TIME_RZ=0; AC_SUBST([GNULIB_TIME_RZ]) GNULIB_TZSET=0; AC_SUBST([GNULIB_TZSET]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_DECL_LOCALTIME_R=1; AC_SUBST([HAVE_DECL_LOCALTIME_R]) HAVE_NANOSLEEP=1; AC_SUBST([HAVE_NANOSLEEP]) HAVE_STRPTIME=1; AC_SUBST([HAVE_STRPTIME]) HAVE_TIMEGM=1; AC_SUBST([HAVE_TIMEGM]) HAVE_TZSET=1; AC_SUBST([HAVE_TZSET]) dnl Even GNU libc does not have timezone_t yet. HAVE_TIMEZONE_T=0; AC_SUBST([HAVE_TIMEZONE_T]) dnl If another module says to replace or to not replace, do that. dnl Otherwise, replace only if someone compiles with -DGNULIB_PORTCHECK; dnl this lets maintainers check for portability. REPLACE_CTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_CTIME]) REPLACE_LOCALTIME_R=GNULIB_PORTCHECK; AC_SUBST([REPLACE_LOCALTIME_R]) REPLACE_MKTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_MKTIME]) REPLACE_NANOSLEEP=GNULIB_PORTCHECK; AC_SUBST([REPLACE_NANOSLEEP]) REPLACE_STRFTIME=GNULIB_PORTCHECK; AC_SUBST([REPLACE_STRFTIME]) REPLACE_TIMEGM=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TIMEGM]) REPLACE_TZSET=GNULIB_PORTCHECK; AC_SUBST([REPLACE_TZSET]) dnl Hack so that the time module doesn't depend on the sys_time module. dnl First, default GNULIB_GETTIMEOFDAY to 0 if sys_time is absent. : ${GNULIB_GETTIMEOFDAY=0}; AC_SUBST([GNULIB_GETTIMEOFDAY]) dnl Second, it's OK to not use GNULIB_PORTCHECK for REPLACE_GMTIME dnl and REPLACE_LOCALTIME, as portability to Solaris 2.6 and earlier dnl is no longer a big deal. REPLACE_GMTIME=0; AC_SUBST([REPLACE_GMTIME]) REPLACE_LOCALTIME=0; AC_SUBST([REPLACE_LOCALTIME]) ]) dnl Reentrant time functions: localtime_r, gmtime_r. dnl Copyright (C) 2003, 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Paul Eggert. AC_DEFUN([gl_TIME_R], [ dnl Persuade glibc and Solaris to declare localtime_r. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) AC_REQUIRE([AC_C_RESTRICT]) dnl Some systems don't declare localtime_r() and gmtime_r() if _REENTRANT is dnl not defined. AC_CHECK_DECLS([localtime_r], [], [], [[/* mingw's provides the functions asctime_r, ctime_r, gmtime_r, localtime_r only if or has been included before. */ #if defined __MINGW32__ # include #endif #include ]]) if test $ac_cv_have_decl_localtime_r = no; then HAVE_DECL_LOCALTIME_R=0 fi AC_CHECK_FUNCS_ONCE([localtime_r]) if test $ac_cv_func_localtime_r = yes; then HAVE_LOCALTIME_R=1 AC_CACHE_CHECK([whether localtime_r is compatible with its POSIX signature], [gl_cv_time_r_posix], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[/* mingw's provides the functions asctime_r, ctime_r, gmtime_r, localtime_r only if or has been included before. */ #if defined __MINGW32__ # include #endif #include ]], [[/* We don't need to append 'restrict's to the argument types, even though the POSIX signature has the 'restrict's, since C99 says they can't affect type compatibility. */ struct tm * (*ptr) (time_t const *, struct tm *) = localtime_r; if (ptr) return 0; /* Check the return type is a pointer. On HP-UX 10 it is 'int'. */ *localtime_r (0, 0);]]) ], [gl_cv_time_r_posix=yes], [gl_cv_time_r_posix=no]) ]) if test $gl_cv_time_r_posix = yes; then REPLACE_LOCALTIME_R=0 else REPLACE_LOCALTIME_R=1 fi else HAVE_LOCALTIME_R=0 dnl On mingw, localtime_r() is defined as an inline function; use through a dnl direct function call works but the use as a function pointer leads to a dnl link error. AC_CACHE_CHECK([whether localtime_r exists as an inline function], [gl_cv_func_localtime_r_inline], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[/* mingw's provides the functions asctime_r, ctime_r, gmtime_r, localtime_r only if or has been included before. */ #if defined __MINGW32__ # include #endif #include ]], [[time_t a; struct tm r; localtime_r (&a, &r); ]]) ], [gl_cv_func_localtime_r_inline=yes], [gl_cv_func_localtime_r_inline=no]) ]) if test $gl_cv_func_localtime_r_inline = yes; then REPLACE_LOCALTIME_R=1 fi fi ]) # Prerequisites of lib/time_r.c. AC_DEFUN([gl_PREREQ_TIME_R], [ : ]) # ungetc.m4 serial 8 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN_ONCE([gl_FUNC_UNGETC_WORKS], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether ungetc works on arbitrary bytes], [gl_cv_func_ungetc_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include ]], [FILE *f; if (!(f = fopen ("conftest.tmp", "w+"))) return 1; if (fputs ("abc", f) < 0) { fclose (f); return 2; } rewind (f); if (fgetc (f) != 'a') { fclose (f); return 3; } if (fgetc (f) != 'b') { fclose (f); return 4; } if (ungetc ('d', f) != 'd') { fclose (f); return 5; } if (ftell (f) != 1) { fclose (f); return 6; } if (fgetc (f) != 'd') { fclose (f); return 7; } if (ftell (f) != 2) { fclose (f); return 8; } if (fseek (f, 0, SEEK_CUR) != 0) { fclose (f); return 9; } if (ftell (f) != 2) { fclose (f); return 10; } if (fgetc (f) != 'c') { fclose (f); return 11; } fclose (f); remove ("conftest.tmp");])], [gl_cv_func_ungetc_works=yes], [gl_cv_func_ungetc_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_ungetc_works="guessing yes" ;; # Guess yes on musl systems. *-musl*) gl_cv_func_ungetc_works="guessing yes" ;; # Guess yes on bionic systems. *-android*) gl_cv_func_ungetc_works="guessing yes" ;; # Guess yes on native Windows. mingw*) gl_cv_func_ungetc_works="guessing yes" ;; # If we don't know, obey --enable-cross-guesses. *) gl_cv_func_ungetc_works="$gl_cross_guess_normal" ;; esac ]) ]) case "$gl_cv_func_ungetc_works" in *yes) ;; *) AC_DEFINE([FUNC_UNGETC_BROKEN], [1], [Define to 1 if ungetc is broken when used on arbitrary bytes.]) ;; esac ]) # unistd_h.m4 serial 78 dnl Copyright (C) 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Simon Josefsson, Bruno Haible. AC_DEFUN([gl_UNISTD_H], [ dnl Use AC_REQUIRE here, so that the default behavior below is expanded dnl once only, before all statements that occur in other macros. AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) gl_CHECK_NEXT_HEADERS([unistd.h]) if test $ac_cv_header_unistd_h = yes; then HAVE_UNISTD_H=1 else HAVE_UNISTD_H=0 fi AC_SUBST([HAVE_UNISTD_H]) dnl Ensure the type pid_t gets defined. AC_REQUIRE([AC_TYPE_PID_T]) dnl Determine WINDOWS_64_BIT_OFF_T. AC_REQUIRE([gl_TYPE_OFF_T]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[ #if HAVE_UNISTD_H # include #endif /* Some systems declare various items in the wrong headers. */ #if !(defined __GLIBC__ && !defined __UCLIBC__) # include # include # include # if defined _WIN32 && ! defined __CYGWIN__ # include # endif #endif ]], [access chdir chown dup dup2 dup3 environ euidaccess faccessat fchdir fchownat fdatasync fsync ftruncate getcwd getdomainname getdtablesize getentropy getgroups gethostname getlogin getlogin_r getpagesize getpass getrandom getusershell setusershell endusershell group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite readlink readlinkat rmdir sethostname sleep symlink symlinkat truncate ttyname_r unlink unlinkat usleep]) AC_REQUIRE([AC_C_RESTRICT]) ]) AC_DEFUN([gl_UNISTD_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_UNISTD_H_DEFAULTS], [ GNULIB_ACCESS=0; AC_SUBST([GNULIB_ACCESS]) GNULIB_CHDIR=0; AC_SUBST([GNULIB_CHDIR]) GNULIB_CHOWN=0; AC_SUBST([GNULIB_CHOWN]) GNULIB_CLOSE=0; AC_SUBST([GNULIB_CLOSE]) GNULIB_COPY_FILE_RANGE=0; AC_SUBST([GNULIB_COPY_FILE_RANGE]) GNULIB_DUP=0; AC_SUBST([GNULIB_DUP]) GNULIB_DUP2=0; AC_SUBST([GNULIB_DUP2]) GNULIB_DUP3=0; AC_SUBST([GNULIB_DUP3]) GNULIB_ENVIRON=0; AC_SUBST([GNULIB_ENVIRON]) GNULIB_EUIDACCESS=0; AC_SUBST([GNULIB_EUIDACCESS]) GNULIB_FACCESSAT=0; AC_SUBST([GNULIB_FACCESSAT]) GNULIB_FCHDIR=0; AC_SUBST([GNULIB_FCHDIR]) GNULIB_FCHOWNAT=0; AC_SUBST([GNULIB_FCHOWNAT]) GNULIB_FDATASYNC=0; AC_SUBST([GNULIB_FDATASYNC]) GNULIB_FSYNC=0; AC_SUBST([GNULIB_FSYNC]) GNULIB_FTRUNCATE=0; AC_SUBST([GNULIB_FTRUNCATE]) GNULIB_GETCWD=0; AC_SUBST([GNULIB_GETCWD]) GNULIB_GETDOMAINNAME=0; AC_SUBST([GNULIB_GETDOMAINNAME]) GNULIB_GETDTABLESIZE=0; AC_SUBST([GNULIB_GETDTABLESIZE]) GNULIB_GETENTROPY=0; AC_SUBST([GNULIB_GETENTROPY]) GNULIB_GETGROUPS=0; AC_SUBST([GNULIB_GETGROUPS]) GNULIB_GETHOSTNAME=0; AC_SUBST([GNULIB_GETHOSTNAME]) GNULIB_GETLOGIN=0; AC_SUBST([GNULIB_GETLOGIN]) GNULIB_GETLOGIN_R=0; AC_SUBST([GNULIB_GETLOGIN_R]) GNULIB_GETOPT_POSIX=0; AC_SUBST([GNULIB_GETOPT_POSIX]) GNULIB_GETPAGESIZE=0; AC_SUBST([GNULIB_GETPAGESIZE]) GNULIB_GETPASS=0; AC_SUBST([GNULIB_GETPASS]) GNULIB_GETRANDOM=0; AC_SUBST([GNULIB_GETRANDOM]) GNULIB_GETUSERSHELL=0; AC_SUBST([GNULIB_GETUSERSHELL]) GNULIB_GROUP_MEMBER=0; AC_SUBST([GNULIB_GROUP_MEMBER]) GNULIB_ISATTY=0; AC_SUBST([GNULIB_ISATTY]) GNULIB_LCHOWN=0; AC_SUBST([GNULIB_LCHOWN]) GNULIB_LINK=0; AC_SUBST([GNULIB_LINK]) GNULIB_LINKAT=0; AC_SUBST([GNULIB_LINKAT]) GNULIB_LSEEK=0; AC_SUBST([GNULIB_LSEEK]) GNULIB_PIPE=0; AC_SUBST([GNULIB_PIPE]) GNULIB_PIPE2=0; AC_SUBST([GNULIB_PIPE2]) GNULIB_PREAD=0; AC_SUBST([GNULIB_PREAD]) GNULIB_PWRITE=0; AC_SUBST([GNULIB_PWRITE]) GNULIB_READ=0; AC_SUBST([GNULIB_READ]) GNULIB_READLINK=0; AC_SUBST([GNULIB_READLINK]) GNULIB_READLINKAT=0; AC_SUBST([GNULIB_READLINKAT]) GNULIB_RMDIR=0; AC_SUBST([GNULIB_RMDIR]) GNULIB_SETHOSTNAME=0; AC_SUBST([GNULIB_SETHOSTNAME]) GNULIB_SLEEP=0; AC_SUBST([GNULIB_SLEEP]) GNULIB_SYMLINK=0; AC_SUBST([GNULIB_SYMLINK]) GNULIB_SYMLINKAT=0; AC_SUBST([GNULIB_SYMLINKAT]) GNULIB_TRUNCATE=0; AC_SUBST([GNULIB_TRUNCATE]) GNULIB_TTYNAME_R=0; AC_SUBST([GNULIB_TTYNAME_R]) GNULIB_UNISTD_H_NONBLOCKING=0; AC_SUBST([GNULIB_UNISTD_H_NONBLOCKING]) GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE]) GNULIB_UNLINK=0; AC_SUBST([GNULIB_UNLINK]) GNULIB_UNLINKAT=0; AC_SUBST([GNULIB_UNLINKAT]) GNULIB_USLEEP=0; AC_SUBST([GNULIB_USLEEP]) GNULIB_WRITE=0; AC_SUBST([GNULIB_WRITE]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_CHOWN=1; AC_SUBST([HAVE_CHOWN]) HAVE_COPY_FILE_RANGE=1; AC_SUBST([HAVE_COPY_FILE_RANGE]) HAVE_DUP2=1; AC_SUBST([HAVE_DUP2]) HAVE_DUP3=1; AC_SUBST([HAVE_DUP3]) HAVE_EUIDACCESS=1; AC_SUBST([HAVE_EUIDACCESS]) HAVE_FACCESSAT=1; AC_SUBST([HAVE_FACCESSAT]) HAVE_FCHDIR=1; AC_SUBST([HAVE_FCHDIR]) HAVE_FCHOWNAT=1; AC_SUBST([HAVE_FCHOWNAT]) HAVE_FDATASYNC=1; AC_SUBST([HAVE_FDATASYNC]) HAVE_FSYNC=1; AC_SUBST([HAVE_FSYNC]) HAVE_FTRUNCATE=1; AC_SUBST([HAVE_FTRUNCATE]) HAVE_GETDTABLESIZE=1; AC_SUBST([HAVE_GETDTABLESIZE]) HAVE_GETENTROPY=1; AC_SUBST([HAVE_GETENTROPY]) HAVE_GETGROUPS=1; AC_SUBST([HAVE_GETGROUPS]) HAVE_GETHOSTNAME=1; AC_SUBST([HAVE_GETHOSTNAME]) HAVE_GETLOGIN=1; AC_SUBST([HAVE_GETLOGIN]) HAVE_GETPAGESIZE=1; AC_SUBST([HAVE_GETPAGESIZE]) HAVE_GETPASS=1; AC_SUBST([HAVE_GETPASS]) HAVE_GETRANDOM=1; AC_SUBST([HAVE_GETRANDOM]) HAVE_GROUP_MEMBER=1; AC_SUBST([HAVE_GROUP_MEMBER]) HAVE_LCHOWN=1; AC_SUBST([HAVE_LCHOWN]) HAVE_LINK=1; AC_SUBST([HAVE_LINK]) HAVE_LINKAT=1; AC_SUBST([HAVE_LINKAT]) HAVE_PIPE=1; AC_SUBST([HAVE_PIPE]) HAVE_PIPE2=1; AC_SUBST([HAVE_PIPE2]) HAVE_PREAD=1; AC_SUBST([HAVE_PREAD]) HAVE_PWRITE=1; AC_SUBST([HAVE_PWRITE]) HAVE_READLINK=1; AC_SUBST([HAVE_READLINK]) HAVE_READLINKAT=1; AC_SUBST([HAVE_READLINKAT]) HAVE_SETHOSTNAME=1; AC_SUBST([HAVE_SETHOSTNAME]) HAVE_SLEEP=1; AC_SUBST([HAVE_SLEEP]) HAVE_SYMLINK=1; AC_SUBST([HAVE_SYMLINK]) HAVE_SYMLINKAT=1; AC_SUBST([HAVE_SYMLINKAT]) HAVE_UNLINKAT=1; AC_SUBST([HAVE_UNLINKAT]) HAVE_USLEEP=1; AC_SUBST([HAVE_USLEEP]) HAVE_DECL_ENVIRON=1; AC_SUBST([HAVE_DECL_ENVIRON]) HAVE_DECL_FCHDIR=1; AC_SUBST([HAVE_DECL_FCHDIR]) HAVE_DECL_FDATASYNC=1; AC_SUBST([HAVE_DECL_FDATASYNC]) HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME]) HAVE_DECL_GETLOGIN=1; AC_SUBST([HAVE_DECL_GETLOGIN]) HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R]) HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE]) HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL]) HAVE_DECL_SETHOSTNAME=1; AC_SUBST([HAVE_DECL_SETHOSTNAME]) HAVE_DECL_TRUNCATE=1; AC_SUBST([HAVE_DECL_TRUNCATE]) HAVE_DECL_TTYNAME_R=1; AC_SUBST([HAVE_DECL_TTYNAME_R]) HAVE_OS_H=0; AC_SUBST([HAVE_OS_H]) HAVE_SYS_PARAM_H=0; AC_SUBST([HAVE_SYS_PARAM_H]) REPLACE_ACCESS=0; AC_SUBST([REPLACE_ACCESS]) REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN]) REPLACE_CLOSE=0; AC_SUBST([REPLACE_CLOSE]) REPLACE_DUP=0; AC_SUBST([REPLACE_DUP]) REPLACE_DUP2=0; AC_SUBST([REPLACE_DUP2]) REPLACE_FACCESSAT=0; AC_SUBST([REPLACE_FACCESSAT]) REPLACE_FCHOWNAT=0; AC_SUBST([REPLACE_FCHOWNAT]) REPLACE_FTRUNCATE=0; AC_SUBST([REPLACE_FTRUNCATE]) REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD]) REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME]) REPLACE_GETDTABLESIZE=0; AC_SUBST([REPLACE_GETDTABLESIZE]) REPLACE_GETLOGIN_R=0; AC_SUBST([REPLACE_GETLOGIN_R]) REPLACE_GETGROUPS=0; AC_SUBST([REPLACE_GETGROUPS]) REPLACE_GETPAGESIZE=0; AC_SUBST([REPLACE_GETPAGESIZE]) REPLACE_GETPASS=0; AC_SUBST([REPLACE_GETPASS]) REPLACE_ISATTY=0; AC_SUBST([REPLACE_ISATTY]) REPLACE_LCHOWN=0; AC_SUBST([REPLACE_LCHOWN]) REPLACE_LINK=0; AC_SUBST([REPLACE_LINK]) REPLACE_LINKAT=0; AC_SUBST([REPLACE_LINKAT]) REPLACE_LSEEK=0; AC_SUBST([REPLACE_LSEEK]) REPLACE_PREAD=0; AC_SUBST([REPLACE_PREAD]) REPLACE_PWRITE=0; AC_SUBST([REPLACE_PWRITE]) REPLACE_READ=0; AC_SUBST([REPLACE_READ]) REPLACE_READLINK=0; AC_SUBST([REPLACE_READLINK]) REPLACE_READLINKAT=0; AC_SUBST([REPLACE_READLINKAT]) REPLACE_RMDIR=0; AC_SUBST([REPLACE_RMDIR]) REPLACE_SLEEP=0; AC_SUBST([REPLACE_SLEEP]) REPLACE_SYMLINK=0; AC_SUBST([REPLACE_SYMLINK]) REPLACE_SYMLINKAT=0; AC_SUBST([REPLACE_SYMLINKAT]) REPLACE_TRUNCATE=0; AC_SUBST([REPLACE_TRUNCATE]) REPLACE_TTYNAME_R=0; AC_SUBST([REPLACE_TTYNAME_R]) REPLACE_UNLINK=0; AC_SUBST([REPLACE_UNLINK]) REPLACE_UNLINKAT=0; AC_SUBST([REPLACE_UNLINKAT]) REPLACE_USLEEP=0; AC_SUBST([REPLACE_USLEEP]) REPLACE_WRITE=0; AC_SUBST([REPLACE_WRITE]) UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H]) UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS]) ]) # valgrind-tests.m4 serial 4 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Simon Josefsson # gl_VALGRIND_TESTS() # ------------------- # Check if valgrind is available, and set VALGRIND to it if available. AC_DEFUN([gl_VALGRIND_TESTS], [ AC_ARG_ENABLE([valgrind-tests], AS_HELP_STRING([--enable-valgrind-tests], [try to run self tests under valgrind]), [opt_valgrind_tests=$enableval], [opt_valgrind_tests=no]) # Run self-tests under valgrind? if test "$opt_valgrind_tests" = "yes" && test "$cross_compiling" = no; then AC_CHECK_PROGS([VALGRIND], [valgrind]) if test "$VALGRIND"; then AC_CACHE_CHECK([for valgrind options for tests], [gl_cv_opt_valgrind_tests], [gl_cv_opt_valgrind_tests="-q --error-exitcode=1 --leak-check=full --track-origins=yes --gen-suppressions=all --suppressions=\$(srcdir)/suppressions.valgrind" $VALGRIND $gl_valgrind_opts ls > /dev/null 2>&1 || gl_cv_opt_valgrind_tests=no]) if test "$gl_cv_opt_valgrind_tests" != no; then VALGRIND="$VALGRIND $gl_cv_opt_valgrind_tests" else VALGRIND= fi fi fi ]) # vasnprintf.m4 serial 37 dnl Copyright (C) 2002-2004, 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_VASNPRINTF], [ AC_CHECK_FUNCS_ONCE([vasnprintf]) if test $ac_cv_func_vasnprintf = no; then gl_REPLACE_VASNPRINTF fi ]) AC_DEFUN([gl_REPLACE_VASNPRINTF], [ AC_CHECK_FUNCS_ONCE([vasnprintf]) AC_LIBOBJ([vasnprintf]) AC_LIBOBJ([printf-args]) AC_LIBOBJ([printf-parse]) AC_LIBOBJ([asnprintf]) if test $ac_cv_func_vasnprintf = yes; then AC_DEFINE([REPLACE_VASNPRINTF], [1], [Define if vasnprintf exists but is overridden by gnulib.]) fi gl_PREREQ_PRINTF_ARGS gl_PREREQ_PRINTF_PARSE gl_PREREQ_VASNPRINTF gl_PREREQ_ASNPRINTF ]) # Prerequisites of lib/printf-args.h, lib/printf-args.c. AC_DEFUN([gl_PREREQ_PRINTF_ARGS], [ AC_REQUIRE([gt_TYPE_WCHAR_T]) AC_REQUIRE([gt_TYPE_WINT_T]) ]) # Prerequisites of lib/printf-parse.h, lib/printf-parse.c. AC_DEFUN([gl_PREREQ_PRINTF_PARSE], [ AC_REQUIRE([gl_FEATURES_H]) AC_REQUIRE([gt_TYPE_WCHAR_T]) AC_REQUIRE([gt_TYPE_WINT_T]) AC_REQUIRE([AC_TYPE_SIZE_T]) AC_CHECK_TYPE([ptrdiff_t], , [AC_DEFINE([ptrdiff_t], [long], [Define as the type of the result of subtracting two pointers, if the system doesn't define it.]) ]) AC_REQUIRE([gt_AC_TYPE_INTMAX_T]) ]) # Prerequisites of lib/vasnprintf.c. AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF], [ AC_REQUIRE([AC_FUNC_ALLOCA]) AC_REQUIRE([gt_TYPE_WCHAR_T]) AC_REQUIRE([gt_TYPE_WINT_T]) AC_CHECK_FUNCS([snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb]) dnl Use the _snprintf function only if it is declared (because on NetBSD it dnl is defined as a weak alias of snprintf; we prefer to use the latter). AC_CHECK_DECLS([_snprintf], , , [[#include ]]) dnl Knowing DBL_EXPBIT0_WORD and DBL_EXPBIT0_BIT enables an optimization dnl in the code for NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE. AC_REQUIRE([gl_DOUBLE_EXPONENT_LOCATION]) dnl We can avoid a lot of code by assuming that snprintf's return value dnl conforms to ISO C99. So check that. AC_REQUIRE([gl_SNPRINTF_RETVAL_C99]) case "$gl_cv_func_snprintf_retval_c99" in *yes) AC_DEFINE([HAVE_SNPRINTF_RETVAL_C99], [1], [Define if the return value of the snprintf function is the number of of bytes (excluding the terminating NUL) that would have been produced if the buffer had been large enough.]) ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting 'long double' # arguments. AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE], [ AC_REQUIRE([gl_PRINTF_LONG_DOUBLE]) case "$gl_cv_func_printf_long_double" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1], [Define if the vasnprintf implementation needs special code for 'long double' arguments.]) ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting infinite 'double' # arguments. AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE], [ AC_REQUIRE([gl_PRINTF_INFINITE]) case "$gl_cv_func_printf_infinite" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_INFINITE_DOUBLE], [1], [Define if the vasnprintf implementation needs special code for infinite 'double' arguments.]) ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting infinite 'long double' # arguments. AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE], [ AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE]) dnl There is no need to set NEED_PRINTF_INFINITE_LONG_DOUBLE if dnl NEED_PRINTF_LONG_DOUBLE is already set. AC_REQUIRE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE]) case "$gl_cv_func_printf_long_double" in *yes) case "$gl_cv_func_printf_infinite_long_double" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_INFINITE_LONG_DOUBLE], [1], [Define if the vasnprintf implementation needs special code for infinite 'long double' arguments.]) ;; esac ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting the 'a' directive. AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_A], [ AC_REQUIRE([gl_PRINTF_DIRECTIVE_A]) case "$gl_cv_func_printf_directive_a" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], [1], [Define if the vasnprintf implementation needs special code for the 'a' and 'A' directives.]) AC_CHECK_FUNCS([nl_langinfo]) ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting the 'F' directive. AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_F], [ AC_REQUIRE([gl_PRINTF_DIRECTIVE_F]) case "$gl_cv_func_printf_directive_f" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_DIRECTIVE_F], [1], [Define if the vasnprintf implementation needs special code for the 'F' directive.]) ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting the 'ls' directive. AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_LS], [ AC_REQUIRE([gl_PRINTF_DIRECTIVE_LS]) case "$gl_cv_func_printf_directive_ls" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_DIRECTIVE_LS], [1], [Define if the vasnprintf implementation needs special code for the 'ls' directive.]) ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting the ' flag. AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_GROUPING], [ AC_REQUIRE([gl_PRINTF_FLAG_GROUPING]) case "$gl_cv_func_printf_flag_grouping" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_FLAG_GROUPING], [1], [Define if the vasnprintf implementation needs special code for the ' flag.]) ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting the '-' flag. AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST], [ AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST]) case "$gl_cv_func_printf_flag_leftadjust" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_FLAG_LEFTADJUST], [1], [Define if the vasnprintf implementation needs special code for the '-' flag.]) ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting the 0 flag. AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO], [ AC_REQUIRE([gl_PRINTF_FLAG_ZERO]) case "$gl_cv_func_printf_flag_zero" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_FLAG_ZERO], [1], [Define if the vasnprintf implementation needs special code for the 0 flag.]) ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for supporting large precisions. AC_DEFUN([gl_PREREQ_VASNPRINTF_PRECISION], [ AC_REQUIRE([gl_PRINTF_PRECISION]) case "$gl_cv_func_printf_precision" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_UNBOUNDED_PRECISION], [1], [Define if the vasnprintf implementation needs special code for supporting large precisions without arbitrary bounds.]) AC_DEFINE([NEED_PRINTF_DOUBLE], [1], [Define if the vasnprintf implementation needs special code for 'double' arguments.]) AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1], [Define if the vasnprintf implementation needs special code for 'long double' arguments.]) ;; esac ]) # Extra prerequisites of lib/vasnprintf.c for surviving out-of-memory # conditions. AC_DEFUN([gl_PREREQ_VASNPRINTF_ENOMEM], [ AC_REQUIRE([gl_PRINTF_ENOMEM]) case "$gl_cv_func_printf_enomem" in *yes) ;; *) AC_DEFINE([NEED_PRINTF_ENOMEM], [1], [Define if the vasnprintf implementation needs special code for surviving out-of-memory conditions.]) AC_DEFINE([NEED_PRINTF_DOUBLE], [1], [Define if the vasnprintf implementation needs special code for 'double' arguments.]) AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1], [Define if the vasnprintf implementation needs special code for 'long double' arguments.]) ;; esac ]) # Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance. AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_EXTRAS], [ AC_REQUIRE([gl_PREREQ_VASNPRINTF]) gl_PREREQ_VASNPRINTF_LONG_DOUBLE gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE gl_PREREQ_VASNPRINTF_DIRECTIVE_A gl_PREREQ_VASNPRINTF_DIRECTIVE_F gl_PREREQ_VASNPRINTF_DIRECTIVE_LS gl_PREREQ_VASNPRINTF_FLAG_GROUPING gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST gl_PREREQ_VASNPRINTF_FLAG_ZERO gl_PREREQ_VASNPRINTF_PRECISION gl_PREREQ_VASNPRINTF_ENOMEM ]) # Prerequisites of lib/asnprintf.c. AC_DEFUN([gl_PREREQ_ASNPRINTF], [ ]) # vasprintf.m4 serial 6 dnl Copyright (C) 2002-2003, 2006-2007, 2009-2020 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_VASPRINTF], [ AC_CHECK_FUNCS([vasprintf]) if test $ac_cv_func_vasprintf = no; then gl_REPLACE_VASPRINTF fi ]) AC_DEFUN([gl_REPLACE_VASPRINTF], [ AC_LIBOBJ([vasprintf]) AC_LIBOBJ([asprintf]) AC_REQUIRE([gl_STDIO_H_DEFAULTS]) if test $ac_cv_func_vasprintf = yes; then REPLACE_VASPRINTF=1 else HAVE_VASPRINTF=0 fi gl_PREREQ_VASPRINTF_H gl_PREREQ_VASPRINTF gl_PREREQ_ASPRINTF ]) # Prerequisites of the vasprintf portion of lib/stdio.h. AC_DEFUN([gl_PREREQ_VASPRINTF_H], [ dnl Persuade glibc to declare asprintf() and vasprintf(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) ]) # Prerequisites of lib/vasprintf.c. AC_DEFUN([gl_PREREQ_VASPRINTF], [ ]) # Prerequisites of lib/asprintf.c. AC_DEFUN([gl_PREREQ_ASPRINTF], [ ]) # visibility.m4 serial 6 dnl Copyright (C) 2005, 2008, 2010-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl Tests whether the compiler supports the command-line option dnl -fvisibility=hidden and the function and variable attributes dnl __attribute__((__visibility__("hidden"))) and dnl __attribute__((__visibility__("default"))). dnl Does *not* test for __visibility__("protected") - which has tricky dnl semantics (see the 'vismain' test in glibc) and does not exist e.g. on dnl Mac OS X. dnl Does *not* test for __visibility__("internal") - which has processor dnl dependent semantics. dnl Does *not* test for #pragma GCC visibility push(hidden) - which is dnl "really only recommended for legacy code". dnl Set the variable CFLAG_VISIBILITY. dnl Defines and sets the variable HAVE_VISIBILITY. AC_DEFUN([gl_VISIBILITY], [ AC_REQUIRE([AC_PROG_CC]) CFLAG_VISIBILITY= HAVE_VISIBILITY=0 if test -n "$GCC"; then dnl First, check whether -Werror can be added to the command line, or dnl whether it leads to an error because of some other option that the dnl user has put into $CC $CFLAGS $CPPFLAGS. AC_CACHE_CHECK([whether the -Werror option is usable], [gl_cv_cc_vis_werror], [gl_save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Werror" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[]], [[]])], [gl_cv_cc_vis_werror=yes], [gl_cv_cc_vis_werror=no]) CFLAGS="$gl_save_CFLAGS" ]) dnl Now check whether visibility declarations are supported. AC_CACHE_CHECK([for simple visibility declarations], [gl_cv_cc_visibility], [gl_save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -fvisibility=hidden" dnl We use the option -Werror and a function dummyfunc, because on some dnl platforms (Cygwin 1.7) the use of -fvisibility triggers a warning dnl "visibility attribute not supported in this configuration; ignored" dnl at the first function definition in every compilation unit, and we dnl don't want to use the option in this case. if test $gl_cv_cc_vis_werror = yes; then CFLAGS="$CFLAGS -Werror" fi AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[extern __attribute__((__visibility__("hidden"))) int hiddenvar; extern __attribute__((__visibility__("default"))) int exportedvar; extern __attribute__((__visibility__("hidden"))) int hiddenfunc (void); extern __attribute__((__visibility__("default"))) int exportedfunc (void); void dummyfunc (void) {} ]], [[]])], [gl_cv_cc_visibility=yes], [gl_cv_cc_visibility=no]) CFLAGS="$gl_save_CFLAGS" ]) if test $gl_cv_cc_visibility = yes; then CFLAG_VISIBILITY="-fvisibility=hidden" HAVE_VISIBILITY=1 fi fi AC_SUBST([CFLAG_VISIBILITY]) AC_SUBST([HAVE_VISIBILITY]) AC_DEFINE_UNQUOTED([HAVE_VISIBILITY], [$HAVE_VISIBILITY], [Define to 1 or 0, depending whether the compiler supports simple visibility declarations.]) ]) # vsnprintf.m4 serial 7 dnl Copyright (C) 2002-2004, 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Libintl 0.17 will replace vsnprintf only if it does not support %1$s, dnl but defers to any gnulib vsnprintf replacements. Therefore, gnulib dnl must guarantee that the decision for replacing vsnprintf is a superset dnl of the reasons checked by libintl. AC_DEFUN([gl_FUNC_VSNPRINTF], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) gl_cv_func_vsnprintf_usable=no AC_CHECK_FUNCS([vsnprintf]) if test $ac_cv_func_vsnprintf = yes; then gl_SNPRINTF_SIZE1 case "$gl_cv_func_snprintf_size1" in *yes) gl_SNPRINTF_RETVAL_C99 case "$gl_cv_func_snprintf_retval_c99" in *yes) gl_PRINTF_POSITIONS case "$gl_cv_func_printf_positions" in *yes) gl_cv_func_vsnprintf_usable=yes ;; esac ;; esac ;; esac fi if test $gl_cv_func_vsnprintf_usable = no; then gl_REPLACE_VSNPRINTF fi AC_CHECK_DECLS_ONCE([vsnprintf]) if test $ac_cv_have_decl_vsnprintf = no; then HAVE_DECL_VSNPRINTF=0 fi ]) AC_DEFUN([gl_REPLACE_VSNPRINTF], [ AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_LIBOBJ([vsnprintf]) if test $ac_cv_func_vsnprintf = yes; then REPLACE_VSNPRINTF=1 else AC_CHECK_DECLS_ONCE([vsnprintf]) if test $ac_cv_have_decl_vsnprintf = yes; then dnl If the function is declared but does not appear to exist, it may be dnl defined as an inline function. In order to avoid a conflict, we have dnl to define rpl_vsnprintf, not vsnprintf. REPLACE_VSNPRINTF=1 fi fi gl_PREREQ_VSNPRINTF ]) # Prerequisites of lib/vsnprintf.c. AC_DEFUN([gl_PREREQ_VSNPRINTF], [:]) # warn-on-use.m4 serial 6 dnl Copyright (C) 2010-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # gl_WARN_ON_USE_PREPARE(INCLUDES, NAMES) # --------------------------------------- # If the module 'posixcheck' is in use: # # For each whitespace-separated element in the list of NAMES, define # HAVE_RAW_DECL_name if the function has a declaration among INCLUDES # even after being undefined as a macro. # # See warn-on-use.h for some hints on how to poison function names, as # well as ideas on poisoning global variables and macros. NAMES may # include global variables, but remember that only functions work with # _GL_WARN_ON_USE. Typically, INCLUDES only needs to list a single # header, but if the replacement header pulls in other headers because # some systems declare functions in the wrong header, then INCLUDES # should do likewise. # # It is generally safe to assume declarations for functions declared # in the intersection of C89 and C11 (such as printf) without # needing gl_WARN_ON_USE_PREPARE. AC_DEFUN([gl_WARN_ON_USE_PREPARE], [ m4_ifdef([gl_POSIXCHECK], [m4_foreach_w([gl_decl], [$2], [AH_TEMPLATE([HAVE_RAW_DECL_]AS_TR_CPP(m4_defn([gl_decl])), [Define to 1 if ]m4_defn([gl_decl])[ is declared even after undefining macros.])])dnl dnl FIXME: gl_Symbol must be used unquoted until we can assume dnl autoconf 2.64 or newer. for gl_func in m4_flatten([$2]); do AS_VAR_PUSHDEF([gl_Symbol], [gl_cv_have_raw_decl_$gl_func])dnl AC_CACHE_CHECK([whether $gl_func is declared without a macro], gl_Symbol, [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$1], [@%:@undef $gl_func (void) $gl_func;])], [AS_VAR_SET(gl_Symbol, [yes])], [AS_VAR_SET(gl_Symbol, [no])])]) AS_VAR_IF(gl_Symbol, [yes], [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_RAW_DECL_$gl_func]), [1]) dnl shortcut - if the raw declaration exists, then set a cache dnl variable to allow skipping any later AC_CHECK_DECL efforts eval ac_cv_have_decl_$gl_func=yes]) AS_VAR_POPDEF([gl_Symbol])dnl done ]) ]) # warnings.m4 serial 14 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Simon Josefsson # gl_AS_VAR_APPEND(VAR, VALUE) # ---------------------------- # Provide the functionality of AS_VAR_APPEND if Autoconf does not have it. m4_ifdef([AS_VAR_APPEND], [m4_copy([AS_VAR_APPEND], [gl_AS_VAR_APPEND])], [m4_define([gl_AS_VAR_APPEND], [AS_VAR_SET([$1], [AS_VAR_GET([$1])$2])])]) # gl_COMPILER_OPTION_IF(OPTION, [IF-SUPPORTED], [IF-NOT-SUPPORTED], # [PROGRAM = AC_LANG_PROGRAM()]) # ----------------------------------------------------------------- # Check if the compiler supports OPTION when compiling PROGRAM. # # The effects of this macro depend on the current language (_AC_LANG). AC_DEFUN([gl_COMPILER_OPTION_IF], [ dnl FIXME: gl_Warn must be used unquoted until we can assume Autoconf dnl 2.64 or newer. AS_VAR_PUSHDEF([gl_Warn], [gl_cv_warn_[]_AC_LANG_ABBREV[]_$1])dnl AS_VAR_PUSHDEF([gl_Flags], [_AC_LANG_PREFIX[]FLAGS])dnl AS_LITERAL_IF([$1], [m4_pushdef([gl_Positive], m4_bpatsubst([$1], [^-Wno-], [-W]))], [gl_positive="$1" case $gl_positive in -Wno-*) gl_positive=-W`expr "X$gl_positive" : 'X-Wno-\(.*\)'` ;; esac m4_pushdef([gl_Positive], [$gl_positive])])dnl AC_CACHE_CHECK([whether _AC_LANG compiler handles $1], m4_defn([gl_Warn]), [ gl_save_compiler_FLAGS="$gl_Flags" gl_AS_VAR_APPEND(m4_defn([gl_Flags]), [" $gl_unknown_warnings_are_errors ]m4_defn([gl_Positive])["]) AC_LINK_IFELSE([m4_default([$4], [AC_LANG_PROGRAM([])])], [AS_VAR_SET(gl_Warn, [yes])], [AS_VAR_SET(gl_Warn, [no])]) gl_Flags="$gl_save_compiler_FLAGS" ]) AS_VAR_IF(gl_Warn, [yes], [$2], [$3]) m4_popdef([gl_Positive])dnl AS_VAR_POPDEF([gl_Flags])dnl AS_VAR_POPDEF([gl_Warn])dnl ]) # gl_UNKNOWN_WARNINGS_ARE_ERRORS # ------------------------------ # Clang doesn't complain about unknown warning options unless one also # specifies -Wunknown-warning-option -Werror. Detect this. # # The effects of this macro depend on the current language (_AC_LANG). AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS], [_AC_LANG_DISPATCH([$0], _AC_LANG, $@)]) # Specialization for _AC_LANG = C. This macro can be AC_REQUIREd. # Use of m4_defun rather than AC_DEFUN works around a bug in autoconf < 2.63b. m4_defun([gl_UNKNOWN_WARNINGS_ARE_ERRORS(C)], [ AC_LANG_PUSH([C]) gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL AC_LANG_POP([C]) ]) # Specialization for _AC_LANG = C++. This macro can be AC_REQUIREd. # Use of m4_defun rather than AC_DEFUN works around a bug in autoconf < 2.63b. m4_defun([gl_UNKNOWN_WARNINGS_ARE_ERRORS(C++)], [ AC_LANG_PUSH([C++]) gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL AC_LANG_POP([C++]) ]) # Specialization for _AC_LANG = Objective C. This macro can be AC_REQUIREd. # Use of m4_defun rather than AC_DEFUN works around a bug in autoconf < 2.63b. m4_defun([gl_UNKNOWN_WARNINGS_ARE_ERRORS(Objective C)], [ AC_LANG_PUSH([Objective C]) gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL AC_LANG_POP([Objective C]) ]) AC_DEFUN([gl_UNKNOWN_WARNINGS_ARE_ERRORS_IMPL], [gl_COMPILER_OPTION_IF([-Werror -Wunknown-warning-option], [gl_unknown_warnings_are_errors='-Wunknown-warning-option -Werror'], [gl_unknown_warnings_are_errors=])]) # gl_WARN_ADD(OPTION, [VARIABLE = WARN_CFLAGS/WARN_CXXFLAGS], # [PROGRAM = AC_LANG_PROGRAM()]) # ----------------------------------------------------------- # Adds parameter to WARN_CFLAGS/WARN_CXXFLAGS if the compiler supports it # when compiling PROGRAM. For example, gl_WARN_ADD([-Wparentheses]). # # If VARIABLE is a variable name, AC_SUBST it. # # The effects of this macro depend on the current language (_AC_LANG). AC_DEFUN([gl_WARN_ADD], [AC_REQUIRE([gl_UNKNOWN_WARNINGS_ARE_ERRORS(]_AC_LANG[)]) gl_COMPILER_OPTION_IF([$1], [gl_AS_VAR_APPEND(m4_if([$2], [], [[WARN_]_AC_LANG_PREFIX[FLAGS]], [[$2]]), [" $1"])], [], [$3]) m4_ifval([$2], [AS_LITERAL_IF([$2], [AC_SUBST([$2])])], [AC_SUBST([WARN_]_AC_LANG_PREFIX[FLAGS])])dnl ]) # Local Variables: # mode: autoconf # End: dnl A placeholder for ISO C99 , for platforms that have issues. dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Eric Blake. # wchar_h.m4 serial 45 AC_DEFUN([gl_WCHAR_H], [ AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) AC_REQUIRE([gl_WCHAR_H_INLINE_OK]) dnl Prepare for creating substitute . dnl Check for (missing in Linux uClibc when built without wide dnl character support). dnl is always overridden, because of GNULIB_POSIXCHECK. gl_CHECK_NEXT_HEADERS([wchar.h]) if test $ac_cv_header_wchar_h = yes; then HAVE_WCHAR_H=1 else HAVE_WCHAR_H=0 fi AC_SUBST([HAVE_WCHAR_H]) AC_REQUIRE([gl_FEATURES_H]) AC_REQUIRE([gt_TYPE_WINT_T]) if test $gt_cv_c_wint_t = yes; then HAVE_WINT_T=1 else HAVE_WINT_T=0 fi AC_SUBST([HAVE_WINT_T]) AC_REQUIRE([gl_TYPE_WINT_T_PREREQ]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[ /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #if !(defined __GLIBC__ && !defined __UCLIBC__) # include # include # include #endif #include ]], [btowc wctob mbsinit mbrtowc mbrlen mbsrtowcs mbsnrtowcs wcrtomb wcsrtombs wcsnrtombs wcwidth wmemchr wmemcmp wmemcpy wmemmove wmemset wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat wcscmp wcsncmp wcscasecmp wcsncasecmp wcscoll wcsxfrm wcsdup wcschr wcsrchr wcscspn wcsspn wcspbrk wcsstr wcstok wcswidth wcsftime ]) AC_REQUIRE([AC_C_RESTRICT]) ]) dnl Check whether is usable at all. AC_DEFUN([gl_WCHAR_H_INLINE_OK], [ dnl Test whether suffers due to the transition from '__inline' to dnl 'gnu_inline'. See dnl and . In summary, dnl glibc version 2.5 or older, together with gcc version 4.3 or newer and dnl the option -std=c99 or -std=gnu99, leads to a broken . AC_CACHE_CHECK([whether uses 'inline' correctly], [gl_cv_header_wchar_h_correct_inline], [gl_cv_header_wchar_h_correct_inline=yes AC_LANG_CONFTEST([ AC_LANG_SOURCE([[#define wcstod renamed_wcstod /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include extern int zero (void); int main () { return zero(); } ]])]) dnl Do not rename the object file from conftest.$ac_objext to dnl conftest1.$ac_objext, as this will cause the link to fail on dnl z/OS when using the XPLINK object format (due to duplicate dnl CSECT names). Instead, temporarily redefine $ac_compile so dnl that the object file has the latter name from the start. save_ac_compile="$ac_compile" ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest1/` if echo '#include "conftest.c"' >conftest1.c && AC_TRY_EVAL([ac_compile]); then AC_LANG_CONFTEST([ AC_LANG_SOURCE([[#define wcstod renamed_wcstod /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include int zero (void) { return 0; } ]])]) dnl See note above about renaming object files. ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest2/` if echo '#include "conftest.c"' >conftest2.c && AC_TRY_EVAL([ac_compile]); then if $CC -o conftest$ac_exeext $CFLAGS $LDFLAGS conftest1.$ac_objext conftest2.$ac_objext $LIBS >&AS_MESSAGE_LOG_FD 2>&1; then : else gl_cv_header_wchar_h_correct_inline=no fi fi fi ac_compile="$save_ac_compile" rm -f conftest[12].c conftest[12].$ac_objext conftest$ac_exeext ]) if test $gl_cv_header_wchar_h_correct_inline = no; then AC_MSG_ERROR([ cannot be used with this compiler ($CC $CFLAGS $CPPFLAGS). This is a known interoperability problem of glibc <= 2.5 with gcc >= 4.3 in C99 mode. You have four options: - Add the flag -fgnu89-inline to CC and reconfigure, or - Fix your include files, using parts of , or - Use a gcc version older than 4.3, or - Don't use the flags -std=c99 or -std=gnu99. Configuration aborted.]) fi ]) AC_DEFUN([gl_WCHAR_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) gl_MODULE_INDICATOR_SET_VARIABLE([$1]) dnl Define it also as a C macro, for the benefit of the unit tests. gl_MODULE_INDICATOR_FOR_TESTS([$1]) ]) AC_DEFUN([gl_WCHAR_H_DEFAULTS], [ GNULIB_BTOWC=0; AC_SUBST([GNULIB_BTOWC]) GNULIB_WCTOB=0; AC_SUBST([GNULIB_WCTOB]) GNULIB_MBSINIT=0; AC_SUBST([GNULIB_MBSINIT]) GNULIB_MBRTOWC=0; AC_SUBST([GNULIB_MBRTOWC]) GNULIB_MBRLEN=0; AC_SUBST([GNULIB_MBRLEN]) GNULIB_MBSRTOWCS=0; AC_SUBST([GNULIB_MBSRTOWCS]) GNULIB_MBSNRTOWCS=0; AC_SUBST([GNULIB_MBSNRTOWCS]) GNULIB_WCRTOMB=0; AC_SUBST([GNULIB_WCRTOMB]) GNULIB_WCSRTOMBS=0; AC_SUBST([GNULIB_WCSRTOMBS]) GNULIB_WCSNRTOMBS=0; AC_SUBST([GNULIB_WCSNRTOMBS]) GNULIB_WCWIDTH=0; AC_SUBST([GNULIB_WCWIDTH]) GNULIB_WMEMCHR=0; AC_SUBST([GNULIB_WMEMCHR]) GNULIB_WMEMCMP=0; AC_SUBST([GNULIB_WMEMCMP]) GNULIB_WMEMCPY=0; AC_SUBST([GNULIB_WMEMCPY]) GNULIB_WMEMMOVE=0; AC_SUBST([GNULIB_WMEMMOVE]) GNULIB_WMEMSET=0; AC_SUBST([GNULIB_WMEMSET]) GNULIB_WCSLEN=0; AC_SUBST([GNULIB_WCSLEN]) GNULIB_WCSNLEN=0; AC_SUBST([GNULIB_WCSNLEN]) GNULIB_WCSCPY=0; AC_SUBST([GNULIB_WCSCPY]) GNULIB_WCPCPY=0; AC_SUBST([GNULIB_WCPCPY]) GNULIB_WCSNCPY=0; AC_SUBST([GNULIB_WCSNCPY]) GNULIB_WCPNCPY=0; AC_SUBST([GNULIB_WCPNCPY]) GNULIB_WCSCAT=0; AC_SUBST([GNULIB_WCSCAT]) GNULIB_WCSNCAT=0; AC_SUBST([GNULIB_WCSNCAT]) GNULIB_WCSCMP=0; AC_SUBST([GNULIB_WCSCMP]) GNULIB_WCSNCMP=0; AC_SUBST([GNULIB_WCSNCMP]) GNULIB_WCSCASECMP=0; AC_SUBST([GNULIB_WCSCASECMP]) GNULIB_WCSNCASECMP=0; AC_SUBST([GNULIB_WCSNCASECMP]) GNULIB_WCSCOLL=0; AC_SUBST([GNULIB_WCSCOLL]) GNULIB_WCSXFRM=0; AC_SUBST([GNULIB_WCSXFRM]) GNULIB_WCSDUP=0; AC_SUBST([GNULIB_WCSDUP]) GNULIB_WCSCHR=0; AC_SUBST([GNULIB_WCSCHR]) GNULIB_WCSRCHR=0; AC_SUBST([GNULIB_WCSRCHR]) GNULIB_WCSCSPN=0; AC_SUBST([GNULIB_WCSCSPN]) GNULIB_WCSSPN=0; AC_SUBST([GNULIB_WCSSPN]) GNULIB_WCSPBRK=0; AC_SUBST([GNULIB_WCSPBRK]) GNULIB_WCSSTR=0; AC_SUBST([GNULIB_WCSSTR]) GNULIB_WCSTOK=0; AC_SUBST([GNULIB_WCSTOK]) GNULIB_WCSWIDTH=0; AC_SUBST([GNULIB_WCSWIDTH]) GNULIB_WCSFTIME=0; AC_SUBST([GNULIB_WCSFTIME]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_BTOWC=1; AC_SUBST([HAVE_BTOWC]) HAVE_MBSINIT=1; AC_SUBST([HAVE_MBSINIT]) HAVE_MBRTOWC=1; AC_SUBST([HAVE_MBRTOWC]) HAVE_MBRLEN=1; AC_SUBST([HAVE_MBRLEN]) HAVE_MBSRTOWCS=1; AC_SUBST([HAVE_MBSRTOWCS]) HAVE_MBSNRTOWCS=1; AC_SUBST([HAVE_MBSNRTOWCS]) HAVE_WCRTOMB=1; AC_SUBST([HAVE_WCRTOMB]) HAVE_WCSRTOMBS=1; AC_SUBST([HAVE_WCSRTOMBS]) HAVE_WCSNRTOMBS=1; AC_SUBST([HAVE_WCSNRTOMBS]) HAVE_WMEMCHR=1; AC_SUBST([HAVE_WMEMCHR]) HAVE_WMEMCMP=1; AC_SUBST([HAVE_WMEMCMP]) HAVE_WMEMCPY=1; AC_SUBST([HAVE_WMEMCPY]) HAVE_WMEMMOVE=1; AC_SUBST([HAVE_WMEMMOVE]) HAVE_WMEMSET=1; AC_SUBST([HAVE_WMEMSET]) HAVE_WCSLEN=1; AC_SUBST([HAVE_WCSLEN]) HAVE_WCSNLEN=1; AC_SUBST([HAVE_WCSNLEN]) HAVE_WCSCPY=1; AC_SUBST([HAVE_WCSCPY]) HAVE_WCPCPY=1; AC_SUBST([HAVE_WCPCPY]) HAVE_WCSNCPY=1; AC_SUBST([HAVE_WCSNCPY]) HAVE_WCPNCPY=1; AC_SUBST([HAVE_WCPNCPY]) HAVE_WCSCAT=1; AC_SUBST([HAVE_WCSCAT]) HAVE_WCSNCAT=1; AC_SUBST([HAVE_WCSNCAT]) HAVE_WCSCMP=1; AC_SUBST([HAVE_WCSCMP]) HAVE_WCSNCMP=1; AC_SUBST([HAVE_WCSNCMP]) HAVE_WCSCASECMP=1; AC_SUBST([HAVE_WCSCASECMP]) HAVE_WCSNCASECMP=1; AC_SUBST([HAVE_WCSNCASECMP]) HAVE_WCSCOLL=1; AC_SUBST([HAVE_WCSCOLL]) HAVE_WCSXFRM=1; AC_SUBST([HAVE_WCSXFRM]) HAVE_WCSDUP=1; AC_SUBST([HAVE_WCSDUP]) HAVE_WCSCHR=1; AC_SUBST([HAVE_WCSCHR]) HAVE_WCSRCHR=1; AC_SUBST([HAVE_WCSRCHR]) HAVE_WCSCSPN=1; AC_SUBST([HAVE_WCSCSPN]) HAVE_WCSSPN=1; AC_SUBST([HAVE_WCSSPN]) HAVE_WCSPBRK=1; AC_SUBST([HAVE_WCSPBRK]) HAVE_WCSSTR=1; AC_SUBST([HAVE_WCSSTR]) HAVE_WCSTOK=1; AC_SUBST([HAVE_WCSTOK]) HAVE_WCSWIDTH=1; AC_SUBST([HAVE_WCSWIDTH]) HAVE_WCSFTIME=1; AC_SUBST([HAVE_WCSFTIME]) HAVE_DECL_WCTOB=1; AC_SUBST([HAVE_DECL_WCTOB]) HAVE_DECL_WCWIDTH=1; AC_SUBST([HAVE_DECL_WCWIDTH]) REPLACE_MBSTATE_T=0; AC_SUBST([REPLACE_MBSTATE_T]) REPLACE_BTOWC=0; AC_SUBST([REPLACE_BTOWC]) REPLACE_WCTOB=0; AC_SUBST([REPLACE_WCTOB]) REPLACE_MBSINIT=0; AC_SUBST([REPLACE_MBSINIT]) REPLACE_MBRTOWC=0; AC_SUBST([REPLACE_MBRTOWC]) REPLACE_MBRLEN=0; AC_SUBST([REPLACE_MBRLEN]) REPLACE_MBSRTOWCS=0; AC_SUBST([REPLACE_MBSRTOWCS]) REPLACE_MBSNRTOWCS=0; AC_SUBST([REPLACE_MBSNRTOWCS]) REPLACE_WCRTOMB=0; AC_SUBST([REPLACE_WCRTOMB]) REPLACE_WCSRTOMBS=0; AC_SUBST([REPLACE_WCSRTOMBS]) REPLACE_WCSNRTOMBS=0; AC_SUBST([REPLACE_WCSNRTOMBS]) REPLACE_WCWIDTH=0; AC_SUBST([REPLACE_WCWIDTH]) REPLACE_WCSWIDTH=0; AC_SUBST([REPLACE_WCSWIDTH]) REPLACE_WCSFTIME=0; AC_SUBST([REPLACE_WCSFTIME]) REPLACE_WCSTOK=0; AC_SUBST([REPLACE_WCSTOK]) ]) # wchar_t.m4 serial 4 (gettext-0.18.2) dnl Copyright (C) 2002-2003, 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl Test whether has the 'wchar_t' type. dnl Prerequisite: AC_PROG_CC AC_DEFUN([gt_TYPE_WCHAR_T], [ AC_CACHE_CHECK([for wchar_t], [gt_cv_c_wchar_t], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include wchar_t foo = (wchar_t)'\0';]], [[]])], [gt_cv_c_wchar_t=yes], [gt_cv_c_wchar_t=no])]) if test $gt_cv_c_wchar_t = yes; then AC_DEFINE([HAVE_WCHAR_T], [1], [Define if you have the 'wchar_t' type.]) fi ]) # wint_t.m4 serial 8 dnl Copyright (C) 2003, 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl Test whether has the 'wint_t' type and whether gnulib's dnl or would, if present, override 'wint_t'. dnl Prerequisite: AC_PROG_CC AC_DEFUN([gt_TYPE_WINT_T], [ AC_CACHE_CHECK([for wint_t], [gt_cv_c_wint_t], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[ /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include wint_t foo = (wchar_t)'\0';]], [[]])], [gt_cv_c_wint_t=yes], [gt_cv_c_wint_t=no])]) if test $gt_cv_c_wint_t = yes; then AC_DEFINE([HAVE_WINT_T], [1], [Define if you have the 'wint_t' type.]) dnl Determine whether gnulib's or would, if present, dnl override 'wint_t'. AC_CACHE_CHECK([whether wint_t is too small], [gl_cv_type_wint_t_too_small], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #if !(defined __GLIBC__ && !defined __UCLIBC__) # include # include # include #endif #include int verify[sizeof (wint_t) < sizeof (int) ? -1 : 1]; ]])], [gl_cv_type_wint_t_too_small=no], [gl_cv_type_wint_t_too_small=yes])]) if test $gl_cv_type_wint_t_too_small = yes; then GNULIB_OVERRIDES_WINT_T=1 else GNULIB_OVERRIDES_WINT_T=0 fi else GNULIB_OVERRIDES_WINT_T=0 fi AC_SUBST([GNULIB_OVERRIDES_WINT_T]) ]) dnl Prerequisites of the 'wint_t' override. AC_DEFUN([gl_TYPE_WINT_T_PREREQ], [ AC_CHECK_HEADERS_ONCE([crtdefs.h]) if test $ac_cv_header_crtdefs_h = yes; then HAVE_CRTDEFS_H=1 else HAVE_CRTDEFS_H=0 fi AC_SUBST([HAVE_CRTDEFS_H]) ]) # xsize.m4 serial 5 dnl Copyright (C) 2003-2004, 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_XSIZE], [ dnl Prerequisites of lib/xsize.h. AC_REQUIRE([gl_SIZE_MAX]) AC_CHECK_HEADERS([stdint.h]) ]) # zzgnulib.m4 serial 1 dnl Copyright (C) 2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl This file must be named something that sorts after all other dnl package- or gnulib-provided .m4 files - at least for those packages dnl that redefine AC_PROG_CC. dnl Redefine AC_PROG_CC so that it ends with invocations of gl_COMPILER_CLANG dnl and gl_COMPILER_PREPARE_CHECK_DECL. m4_define([AC_PROG_CC], m4_defn([AC_PROG_CC])[ gl_COMPILER_CLANG gl_COMPILER_PREPARE_CHECK_DECL ]) # gl_ZZGNULIB # ----------- # Witness macro that this file has been included. Needed to force # Automake to include this file after all other gnulib .m4 files. AC_DEFUN([gl_ZZGNULIB]) # -*- mode: autoconf -*- # # gtk-doc.m4 - configure macro to check for gtk-doc # Copyright (C) 2003 James Henstridge # 2007-2017 Stefan Sauer # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # As a special exception, the above copyright owner gives unlimited # permission to copy, distribute and modify the configure scripts that # are the output of Autoconf when processing the Macro. You need not # follow the terms of the GNU General Public License when using or # distributing such scripts, even though portions of the text of the # Macro appear in them. The GNU General Public License (GPL) does govern # all other use of the material that constitutes the Autoconf Macro. # serial 2.1 dnl Usage: dnl GTK_DOC_CHECK([minimum-gtk-doc-version]) AC_DEFUN([GTK_DOC_CHECK], [ AC_REQUIRE([PKG_PROG_PKG_CONFIG]) AC_BEFORE([AC_PROG_LIBTOOL],[$0])dnl setup libtool first AC_BEFORE([AM_PROG_LIBTOOL],[$0])dnl setup libtool first gtkdoc_pkgconfig_save=$PKG_CONFIG PKG_CONFIG=pkg-config-native ifelse([$1],[],[gtk_doc_requires="gtk-doc"],[gtk_doc_requires="gtk-doc >= $1"]) AC_MSG_CHECKING([for gtk-doc]) PKG_CHECK_EXISTS([$gtk_doc_requires],[have_gtk_doc=yes],[have_gtk_doc=no]) AC_MSG_RESULT($have_gtk_doc) PKG_CONFIG=$gtkdoc_pkgconfig_save if test "$have_gtk_doc" = "no"; then AC_MSG_WARN([ You will not be able to create source packages with 'make dist' because $gtk_doc_requires is not found.]) fi dnl check for tools we added during development dnl Use AC_CHECK_PROG to avoid the check target using an absolute path that dnl may not be writable by the user. Currently, automake requires that the dnl test name must end in '.test'. dnl https://bugzilla.gnome.org/show_bug.cgi?id=701638 AC_CHECK_PROG([GTKDOC_CHECK],[gtkdoc-check],[gtkdoc-check.test]) AC_PATH_PROG([GTKDOC_CHECK_PATH],[gtkdoc-check]) AC_PATH_PROGS([GTKDOC_REBASE],[gtkdoc-rebase],[true]) AC_PATH_PROG([GTKDOC_MKPDF],[gtkdoc-mkpdf]) dnl for overriding the documentation installation directory AC_ARG_WITH([html-dir], AS_HELP_STRING([--with-html-dir=PATH], [path to installed docs]),, [with_html_dir='${datadir}/gtk-doc/html']) HTML_DIR="$with_html_dir" AC_SUBST([HTML_DIR]) dnl enable/disable documentation building AC_ARG_ENABLE([gtk-doc], AS_HELP_STRING([--enable-gtk-doc], [use gtk-doc to build documentation [[default=no]]]),, [enable_gtk_doc=no]) AC_MSG_CHECKING([whether to build gtk-doc documentation]) AC_MSG_RESULT($enable_gtk_doc) if test "x$enable_gtk_doc" = "xyes" && test "$have_gtk_doc" = "no"; then AC_MSG_ERROR([ You must have $gtk_doc_requires installed to build documentation for $PACKAGE_NAME. Please install gtk-doc or disable building the documentation by adding '--disable-gtk-doc' to '[$]0'.]) fi dnl don't check for glib if we build glib if test "x$PACKAGE_NAME" != "xglib"; then dnl don't fail if someone does not have glib PKG_CHECK_MODULES(GTKDOC_DEPS, glib-2.0 >= 2.10.0 gobject-2.0 >= 2.10.0,,[:]) fi dnl enable/disable output formats AC_ARG_ENABLE([gtk-doc-html], AS_HELP_STRING([--enable-gtk-doc-html], [build documentation in html format [[default=yes]]]),, [enable_gtk_doc_html=yes]) AC_ARG_ENABLE([gtk-doc-pdf], AS_HELP_STRING([--enable-gtk-doc-pdf], [build documentation in pdf format [[default=no]]]),, [enable_gtk_doc_pdf=no]) if test -z "$GTKDOC_MKPDF"; then enable_gtk_doc_pdf=no fi if test -z "$AM_DEFAULT_VERBOSITY"; then AM_DEFAULT_VERBOSITY=1 fi AC_SUBST([AM_DEFAULT_VERBOSITY]) AM_CONDITIONAL([HAVE_GTK_DOC], [test x$have_gtk_doc = xyes]) AM_CONDITIONAL([ENABLE_GTK_DOC], [test x$enable_gtk_doc = xyes]) AM_CONDITIONAL([GTK_DOC_BUILD_HTML], [test x$enable_gtk_doc_html = xyes]) AM_CONDITIONAL([GTK_DOC_BUILD_PDF], [test x$enable_gtk_doc_pdf = xyes]) AM_CONDITIONAL([GTK_DOC_USE_LIBTOOL], [test -n "$LIBTOOL"]) AM_CONDITIONAL([GTK_DOC_USE_REBASE], [test -n "$GTKDOC_REBASE"]) ])