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OBSOLETE_ALL_LINGUAS="$ALL_LINGUAS" # Capture the value of LINGUAS because we need it to compute CATALOGS. LINGUAS="${LINGUAS-%UNSET%}" ]) ]) dnl Postprocesses a Makefile in a directory containing PO files. AC_DEFUN([AM_POSTPROCESS_PO_MAKEFILE], [ # When this code is run, in config.status, two variables have already been # set: # - OBSOLETE_ALL_LINGUAS is the value of LINGUAS set in configure.in, # - LINGUAS is the value of the environment variable LINGUAS at configure # time. changequote(,)dnl # 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$ac_given_srcdir" ;; esac # Find a way to echo strings without interpreting backslash. if test "X`(echo '\t') 2>/dev/null`" = 'X\t'; then gt_echo='echo' else if test "X`(printf '%s\n' '\t') 2>/dev/null`" = 'X\t'; then gt_echo='printf %s\n' else echo_func () { cat < "$ac_file.tmp" tab=`printf '\t'` if grep -l '@TCLCATALOGS@' "$ac_file" > /dev/null; then # Add dependencies that cannot be formulated as a simple suffix rule. for lang in $ALL_LINGUAS; do frobbedlang=`echo $lang | sed -e 's/\..*$//' -e 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'` cat >> "$ac_file.tmp" < /dev/null; then # Add dependencies that cannot be formulated as a simple suffix rule. for lang in $ALL_LINGUAS; do frobbedlang=`echo $lang | sed -e 's/_/-/g' -e 's/^sr-CS/sr-SP/' -e 's/@latin$/-Latn/' -e 's/@cyrillic$/-Cyrl/' -e 's/^sr-SP$/sr-SP-Latn/' -e 's/^uz-UZ$/uz-UZ-Latn/'` cat >> "$ac_file.tmp" <> "$ac_file.tmp" <', 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. 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. AC_DEFUN([gl_ABSOLUTE_HEADER_ONE], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_LANG_CONFTEST([AC_LANG_SOURCE([[#include <]]m4_dquote([$1])[[>]])]) dnl AIX "xlc -E" and "cc -E" omit #line directives for header files dnl that contain only a #include of other header files and no dnl non-comment tokens of their own. This leads to a failure to dnl detect the absolute name of , , dnl and others. The workaround is to force preservation of comments dnl through option -C. This ensures all necessary #line directives dnl are present. GCC supports option -C as well. case "$host_os" in aix*) gl_absname_cpp="$ac_cpp -C" ;; *) gl_absname_cpp="$ac_cpp" ;; esac changequote(,) case "$host_os" in mingw*) dnl For the sake of native Windows compilers (excluding gcc), dnl treat backslash as a directory separator, like /. dnl Actually, these compilers use a double-backslash as dnl directory separator, inside the dnl # line "filename" dnl directives. gl_dirsep_regex='[/\\]' ;; *) gl_dirsep_regex='\/' ;; esac dnl A sed expression that turns a string into a basic regular dnl expression, for use within "/.../". gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g' gl_header_literal_regex=`echo '$1' \ | sed -e "$gl_make_literal_regex_sed"` gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{ s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/ s|^/[^/]|//&| p q }' changequote([,]) dnl eval is necessary to expand gl_absname_cpp. dnl Ultrix and Pyramid sh refuse to redirect output of eval, dnl so use subshell. AS_VAR_SET([gl_cv_absolute_]AS_TR_SH([[$1]]), [`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD | sed -n "$gl_absolute_header_sed"`]) ]) # alloca.m4 serial 14 dnl Copyright (C) 2002-2004, 2006-2007, 2009-2018 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_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 $gl_cv_rpl_alloca = yes; then dnl OK, alloca can be implemented through a compiler built-in. AC_DEFINE([HAVE_ALLOCA], [1], [Define to 1 if you have 'alloca' after including , a header that may be supplied by this distribution.]) ALLOCA_H=alloca.h else dnl alloca exists as a library function, i.e. it is slow and probably dnl a memory leak. Don't define HAVE_ALLOCA in this case. ALLOCA_H= fi else ALLOCA_H=alloca.h fi AC_SUBST([ALLOCA_H]) AM_CONDITIONAL([GL_GENERATE_ALLOCA_H], [test -n "$ALLOCA_H"]) ]) # Prerequisites of lib/alloca.c. # STACK_DIRECTION is already handled by AC_FUNC_ALLOCA. AC_DEFUN([gl_PREREQ_ALLOCA], [:]) # This works around a bug in autoconf <= 2.68. # See . m4_version_prereq([2.69], [] ,[ # This is taken from the following Autoconf patch: # https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=6cd9f12520b0d6f76d3230d7565feba1ecf29497 # _AC_LIBOBJ_ALLOCA # ----------------- # Set up the LIBOBJ replacement of 'alloca'. Well, not exactly # AC_LIBOBJ since we actually set the output variable 'ALLOCA'. # Nevertheless, for Automake, AC_LIBSOURCES it. m4_define([_AC_LIBOBJ_ALLOCA], [# The SVR3 libPW and SVR4 libucb both contain incompatible functions # that cause trouble. Some versions do not even contain alloca or # contain a buggy version. If you still want to use their alloca, # use ar to extract alloca.o from them instead of compiling alloca.c. AC_LIBSOURCES(alloca.c) AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.$ac_objext])dnl AC_DEFINE(C_ALLOCA, 1, [Define to 1 if using 'alloca.c'.]) AC_CACHE_CHECK(whether 'alloca.c' needs Cray hooks, ac_cv_os_cray, [AC_EGREP_CPP(webecray, [#if defined CRAY && ! defined CRAY2 webecray #else wenotbecray #endif ], ac_cv_os_cray=yes, ac_cv_os_cray=no)]) if test $ac_cv_os_cray = yes; then for ac_func in _getb67 GETB67 getb67; do AC_CHECK_FUNC($ac_func, [AC_DEFINE_UNQUOTED(CRAY_STACKSEG_END, $ac_func, [Define to one of '_getb67', 'GETB67', 'getb67' for Cray-2 and Cray-YMP systems. This function is required for 'alloca.c' support on those systems.]) break]) done fi AC_CACHE_CHECK([stack direction for C alloca], [ac_cv_c_stack_direction], [AC_RUN_IFELSE([AC_LANG_SOURCE( [AC_INCLUDES_DEFAULT int find_stack_direction (int *addr, int depth) { int dir, dummy = 0; if (! addr) addr = &dummy; *addr = addr < &dummy ? 1 : addr == &dummy ? 0 : -1; dir = depth ? find_stack_direction (addr, depth - 1) : 0; return dir + dummy; } int main (int argc, char **argv) { return find_stack_direction (0, argc + !argv + 20) < 0; }])], [ac_cv_c_stack_direction=1], [ac_cv_c_stack_direction=-1], [ac_cv_c_stack_direction=0])]) AH_VERBATIM([STACK_DIRECTION], [/* If using the C implementation of alloca, define if you know the direction of stack growth for your system; otherwise it will be automatically deduced at runtime. STACK_DIRECTION > 0 => grows toward higher addresses STACK_DIRECTION < 0 => grows toward lower addresses STACK_DIRECTION = 0 => direction of growth unknown */ @%:@undef STACK_DIRECTION])dnl AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction) ])# _AC_LIBOBJ_ALLOCA ]) # backupfile.m4 serial 14 dnl Copyright (C) 2002-2006, 2009-2018 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 Prerequisites of lib/backupfile.c. AC_DEFUN([gl_BACKUPFILE], [ AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_INO]) AC_REQUIRE([AC_SYS_LONG_FILE_NAMES]) AC_CHECK_FUNCS_ONCE([pathconf]) ]) # serial 7 # Copyright (C) 2002, 2005, 2009-2018 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_BISON], [ # parse-datetime.y works with bison only. : ${YACC='bison -y'} dnl dnl Declaring YACC & YFLAGS precious will not be necessary after GNULIB dnl requires an Autoconf greater than 2.59c, but it will probably still be dnl useful to override the description of YACC in the --help output, re dnl parse-datetime.y assuming 'bison -y'. AC_ARG_VAR([YACC], [The "Yet Another C Compiler" implementation to use. Defaults to 'bison -y'. Values other than 'bison -y' will most likely break on most systems.])dnl AC_ARG_VAR([YFLAGS], [YFLAGS contains the list arguments that will be passed by default to Bison. This script will default YFLAGS to the empty string to avoid a default value of '-d' given by some make applications.])dnl ]) # canonicalize.m4 serial 29 dnl Copyright (C) 2003-2007, 2009-2018 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. # Provides canonicalize_file_name and canonicalize_filename_mode, but does # not provide or fix realpath. AC_DEFUN([gl_FUNC_CANONICALIZE_FILENAME_MODE], [ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([canonicalize_file_name]) AC_REQUIRE([gl_DOUBLE_SLASH_ROOT]) AC_REQUIRE([gl_FUNC_REALPATH_WORKS]) if test $ac_cv_func_canonicalize_file_name = no; then HAVE_CANONICALIZE_FILE_NAME=0 else case "$gl_cv_func_realpath_works" in *yes) ;; *) REPLACE_CANONICALIZE_FILE_NAME=1 ;; esac fi ]) # Provides canonicalize_file_name and realpath. AC_DEFUN([gl_CANONICALIZE_LGPL], [ AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) AC_REQUIRE([gl_CANONICALIZE_LGPL_SEPARATE]) if test $ac_cv_func_canonicalize_file_name = no; then HAVE_CANONICALIZE_FILE_NAME=0 if test $ac_cv_func_realpath = no; then HAVE_REALPATH=0 else case "$gl_cv_func_realpath_works" in *yes) ;; *) REPLACE_REALPATH=1 ;; esac fi else case "$gl_cv_func_realpath_works" in *yes) ;; *) REPLACE_CANONICALIZE_FILE_NAME=1 REPLACE_REALPATH=1 ;; esac fi ]) # Like gl_CANONICALIZE_LGPL, except prepare for separate compilation # (no REPLACE_CANONICALIZE_FILE_NAME, no REPLACE_REALPATH, no AC_LIBOBJ). AC_DEFUN([gl_CANONICALIZE_LGPL_SEPARATE], [ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([canonicalize_file_name getcwd readlink]) AC_REQUIRE([gl_DOUBLE_SLASH_ROOT]) AC_REQUIRE([gl_FUNC_REALPATH_WORKS]) AC_CHECK_HEADERS_ONCE([sys/param.h]) ]) # Check whether realpath works. Assume that if a platform has both # realpath and canonicalize_file_name, but the former is broken, then # so is the latter. AC_DEFUN([gl_FUNC_REALPATH_WORKS], [ AC_CHECK_FUNCS_ONCE([realpath]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether realpath works], [gl_cv_func_realpath_works], [ touch conftest.a mkdir conftest.d AC_RUN_IFELSE([ AC_LANG_PROGRAM([[ ]GL_NOCRASH[ #include #include ]], [[ int result = 0; { char *name = realpath ("conftest.a", NULL); if (!(name && *name == '/')) result |= 1; free (name); } { char *name = realpath ("conftest.b/../conftest.a", NULL); if (name != NULL) result |= 2; free (name); } { char *name = realpath ("conftest.a/", NULL); if (name != NULL) result |= 4; free (name); } { char *name1 = realpath (".", NULL); char *name2 = realpath ("conftest.d//./..", NULL); if (! name1 || ! name2 || strcmp (name1, name2)) result |= 8; free (name1); free (name2); } return result; ]]) ], [gl_cv_func_realpath_works=yes], [gl_cv_func_realpath_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_realpath_works="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_func_realpath_works="guessing no" ;; # If we don't know, assume the worst. *) gl_cv_func_realpath_works="guessing no" ;; esac ]) rm -rf conftest.a conftest.d ]) case "$gl_cv_func_realpath_works" in *yes) AC_DEFINE([FUNC_REALPATH_WORKS], [1], [Define to 1 if realpath() can malloc memory, always gives an absolute path, and handles trailing slash correctly.]) ;; esac ]) #serial 16 # Use Gnulib's robust chdir function. # It can handle arbitrarily long directory names, which means # that when it is given the name of an existing directory, it # never fails with ENAMETOOLONG. # Arrange to compile chdir-long.c only on systems that define PATH_MAX. dnl Copyright (C) 2004-2007, 2009-2018 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 Jim Meyering. AC_DEFUN([gl_FUNC_CHDIR_LONG], [ AC_REQUIRE([gl_PATHMAX_SNIPPET_PREREQ]) AC_CACHE_CHECK([whether this system has an arbitrary file name length limit], [gl_cv_have_arbitrary_file_name_length_limit], [AC_EGREP_CPP([have_arbitrary_file_name_length_limit], gl_PATHMAX_SNIPPET[ #ifdef PATH_MAX have_arbitrary_file_name_length_limit #endif], [gl_cv_have_arbitrary_file_name_length_limit=yes], [gl_cv_have_arbitrary_file_name_length_limit=no])]) ]) AC_DEFUN([gl_PREREQ_CHDIR_LONG], [:]) # serial 29 # Determine whether we need the chown wrapper. dnl Copyright (C) 1997-2001, 2003-2005, 2007, 2009-2018 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. # chown should accept arguments of -1 for uid and gid, and it should # dereference symlinks. If it doesn't, arrange to use the replacement # function. # From Jim Meyering. # This is taken from the following Autoconf patch: # https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9 AC_DEFUN([AC_FUNC_CHOWN], [ AC_REQUIRE([AC_TYPE_UID_T])dnl AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles AC_CHECK_HEADERS([unistd.h]) AC_CACHE_CHECK([for working chown], [ac_cv_func_chown_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [AC_INCLUDES_DEFAULT [#include ]], [[ char *f = "conftest.chown"; struct stat before, after; if (creat (f, 0600) < 0) return 1; if (stat (f, &before) < 0) return 1; if (chown (f, (uid_t) -1, (gid_t) -1) == -1) return 1; if (stat (f, &after) < 0) return 1; return ! (before.st_uid == after.st_uid && before.st_gid == after.st_gid); ]]) ], [ac_cv_func_chown_works=yes], [ac_cv_func_chown_works=no], [case "$host_os" in # (( # Guess yes on glibc systems. *-gnu* | gnu*) ac_cv_func_chown_works="guessing yes" ;; # Guess no on native Windows. mingw*) ac_cv_func_chown_works="guessing no" ;; # If we don't know, assume the worst. *) ac_cv_func_chown_works="guessing no" ;; esac ]) rm -f conftest.chown ]) case "$ac_cv_func_chown_works" in *yes) AC_DEFINE([HAVE_CHOWN], [1], [Define to 1 if your system has a working `chown' function.]) ;; esac ])# AC_FUNC_CHOWN AC_DEFUN_ONCE([gl_FUNC_CHOWN], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_TYPE_UID_T]) AC_REQUIRE([AC_FUNC_CHOWN]) AC_REQUIRE([gl_FUNC_CHOWN_FOLLOWS_SYMLINK]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_FUNCS_ONCE([chown fchown]) dnl mingw lacks chown altogether. if test $ac_cv_func_chown = no; then HAVE_CHOWN=0 else dnl Some old systems treated chown like lchown. if test $gl_cv_func_chown_follows_symlink = no; then REPLACE_CHOWN=1 fi dnl Some old systems tried to use uid/gid -1 literally. case "$ac_cv_func_chown_works" in *no) AC_DEFINE([CHOWN_FAILS_TO_HONOR_ID_OF_NEGATIVE_ONE], [1], [Define if chown is not POSIX compliant regarding IDs of -1.]) REPLACE_CHOWN=1 ;; esac dnl Solaris 9 ignores trailing slash. dnl FreeBSD 7.2 mishandles trailing slash on symlinks. dnl Likewise for AIX 7.1. AC_CACHE_CHECK([whether chown honors trailing slash], [gl_cv_func_chown_slash_works], [touch conftest.file && rm -f conftest.link AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #include #include ]], [[ if (symlink ("conftest.file", "conftest.link")) return 1; if (chown ("conftest.link/", getuid (), getgid ()) == 0) return 2; ]])], [gl_cv_func_chown_slash_works=yes], [gl_cv_func_chown_slash_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu*) gl_cv_func_chown_slash_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_chown_slash_works="guessing no" ;; esac ]) rm -f conftest.link conftest.file]) case "$gl_cv_func_chown_slash_works" in *yes) ;; *) AC_DEFINE([CHOWN_TRAILING_SLASH_BUG], [1], [Define to 1 if chown mishandles trailing slash.]) REPLACE_CHOWN=1 ;; esac dnl OpenBSD fails to update ctime if ownership does not change. AC_CACHE_CHECK([whether chown always updates ctime], [gl_cv_func_chown_ctime_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #include #include #include #include ]], [[ struct stat st1, st2; if (close (creat ("conftest.file", 0600))) return 1; if (stat ("conftest.file", &st1)) return 2; sleep (1); if (chown ("conftest.file", st1.st_uid, st1.st_gid)) return 3; if (stat ("conftest.file", &st2)) return 4; if (st2.st_ctime <= st1.st_ctime) return 5; ]])], [gl_cv_func_chown_ctime_works=yes], [gl_cv_func_chown_ctime_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu*) gl_cv_func_chown_ctime_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_chown_ctime_works="guessing no" ;; esac ]) rm -f conftest.file]) case "$gl_cv_func_chown_ctime_works" in *yes) ;; *) AC_DEFINE([CHOWN_CHANGE_TIME_BUG], [1], [Define to 1 if chown fails to change ctime when at least one argument was not -1.]) REPLACE_CHOWN=1 ;; esac fi ]) # Determine whether chown follows symlinks (it should). AC_DEFUN_ONCE([gl_FUNC_CHOWN_FOLLOWS_SYMLINK], [ AC_CACHE_CHECK( [whether chown dereferences symlinks], [gl_cv_func_chown_follows_symlink], [ AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include #include #include int main () { int result = 0; char const *dangling_symlink = "conftest.dangle"; unlink (dangling_symlink); if (symlink ("conftest.no-such", dangling_symlink)) abort (); /* Exit successfully on a conforming system, i.e., where chown must fail with ENOENT. */ if (chown (dangling_symlink, getuid (), getgid ()) == 0) result |= 1; if (errno != ENOENT) result |= 2; return result; } ]])], [gl_cv_func_chown_follows_symlink=yes], [gl_cv_func_chown_follows_symlink=no], [gl_cv_func_chown_follows_symlink=yes] ) ] ) if test $gl_cv_func_chown_follows_symlink = no; then AC_DEFINE([CHOWN_MODIFIES_SYMLINK], [1], [Define if chown modifies symlinks.]) fi ]) # clock_time.m4 serial 10 dnl Copyright (C) 2002-2006, 2009-2018 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. # Check for clock_gettime and clock_settime, and set LIB_CLOCK_GETTIME. # For a program named, say foo, you should add a line like the following # in the corresponding Makefile.am file: # foo_LDADD = $(LDADD) $(LIB_CLOCK_GETTIME) AC_DEFUN([gl_CLOCK_TIME], [ dnl Persuade glibc and Solaris to declare these functions. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) # Solaris 2.5.1 needs -lposix4 to get the clock_gettime function. # Solaris 7 prefers the library name -lrt to the obsolescent name -lposix4. # Save and restore LIBS so e.g., -lrt, isn't added to it. Otherwise, *all* # programs in the package would end up linked with that potentially-shared # library, inducing unnecessary run-time overhead. LIB_CLOCK_GETTIME= AC_SUBST([LIB_CLOCK_GETTIME]) gl_saved_libs=$LIBS AC_SEARCH_LIBS([clock_gettime], [rt posix4], [test "$ac_cv_search_clock_gettime" = "none required" || LIB_CLOCK_GETTIME=$ac_cv_search_clock_gettime]) AC_CHECK_FUNCS([clock_gettime clock_settime]) LIBS=$gl_saved_libs ]) # close.m4 serial 9 dnl Copyright (C) 2008-2018 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 ]) ]) # closedir.m4 serial 6 dnl Copyright (C) 2011-2018 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_CLOSEDIR], [ AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_FUNCS([closedir]) if test $ac_cv_func_closedir = no; then HAVE_CLOSEDIR=0 fi dnl Replace closedir() 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_CLOSEDIR = 1; then REPLACE_CLOSEDIR=1 fi fi ]) dnl Replace closedir() for supporting the gnulib-defined dirfd() function. case $host_os,$HAVE_CLOSEDIR in os2*,1) REPLACE_CLOSEDIR=1;; esac ]) # codeset.m4 serial 5 (gettext-0.18.2) dnl Copyright (C) 2000-2002, 2006, 2008-2014, 2016 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_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 $am_cv_langinfo_codeset = yes; then AC_DEFINE([HAVE_LANGINFO_CODESET], [1], [Define if you have and nl_langinfo(CODESET).]) fi ]) # configmake.m4 serial 2 dnl Copyright (C) 2010-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # gl_CONFIGMAKE_PREP # ------------------ # Guarantee all of the standard directory variables, even when used with # autoconf 2.59 (datarootdir wasn't supported until 2.59c, and runstatedir # in 2.70) or automake 1.9.6 (pkglibexecdir wasn't supported until 1.10b, # and runstatedir in 1.14.1). AC_DEFUN([gl_CONFIGMAKE_PREP], [ dnl Technically, datadir should default to datarootdir. But if dnl autoconf is too old to provide datarootdir, then reversing the dnl definition is a reasonable compromise. Only AC_SUBST a variable dnl if it was not already defined earlier by autoconf. if test "x$datarootdir" = x; then AC_SUBST([datarootdir], ['${datadir}']) fi dnl Copy the approach used in autoconf 2.60. if test "x$docdir" = x; then AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME], ['${datarootdir}/doc/${PACKAGE_TARNAME}'], ['${datarootdir}/doc/${PACKAGE}'])]) fi dnl The remaining variables missing from autoconf 2.59 are easier. if test "x$htmldir" = x; then AC_SUBST([htmldir], ['${docdir}']) fi if test "x$dvidir" = x; then AC_SUBST([dvidir], ['${docdir}']) fi if test "x$pdfdir" = x; then AC_SUBST([pdfdir], ['${docdir}']) fi if test "x$psdir" = x; then AC_SUBST([psdir], ['${docdir}']) fi if test "x$lispdir" = x; then AC_SUBST([lispdir], ['${datarootdir}/emacs/site-lisp']) fi if test "x$localedir" = x; then AC_SUBST([localedir], ['${datarootdir}/locale']) fi dnl Added in autoconf 2.70 if test "x$runstatedir" = x; then AC_SUBST([runstatedir], ['${localstatedir}/run']) fi dnl Automake 1.9.6 only lacks pkglibexecdir; and since 1.11 merely dnl provides it without AC_SUBST, this blind use of AC_SUBST is safe. AC_SUBST([pkglibexecdir], ['${libexecdir}/${PACKAGE}']) ]) # serial 18 dnl From Jim Meyering. dnl dnl Check whether struct dirent has a member named d_ino. dnl # Copyright (C) 1997, 1999-2001, 2003-2004, 2006-2007, 2009-2018 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_CHECK_TYPE_STRUCT_DIRENT_D_INO], [AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([for d_ino member in directory struct], [gl_cv_struct_dirent_d_ino], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include #include ]], [[DIR *dp = opendir ("."); struct dirent *e; struct stat st; if (! dp) return 1; e = readdir (dp); if (! e) { closedir (dp); return 2; } if (lstat (e->d_name, &st) != 0) { closedir (dp); return 3; } if (e->d_ino != st.st_ino) { closedir (dp); return 4; } closedir (dp); return 0; ]])], [gl_cv_struct_dirent_d_ino=yes], [gl_cv_struct_dirent_d_ino=no], [case "$host_os" in # Guess yes on glibc systems with Linux kernel. linux*-gnu*) gl_cv_struct_dirent_d_ino="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_struct_dirent_d_ino="guessing no" ;; # If we don't know, assume the worst. *) gl_cv_struct_dirent_d_ino="guessing no" ;; esac ])]) case "$gl_cv_struct_dirent_d_ino" in *yes) AC_DEFINE([D_INO_IN_DIRENT], [1], [Define if struct dirent has a member d_ino that actually works.]) ;; esac ] ) #serial 2 dnl Copyright (C) 2009-2018 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_DIRENT_SAFER], [ AC_CHECK_FUNCS_ONCE([fdopendir]) ]) # dirent_h.m4 serial 16 dnl Copyright (C) 2008-2018 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_DIRENT_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_DIRENT_H_DEFAULTS]) dnl is always overridden, because of GNULIB_POSIXCHECK. gl_CHECK_NEXT_HEADERS([dirent.h]) if test $ac_cv_header_dirent_h = yes; then HAVE_DIRENT_H=1 else HAVE_DIRENT_H=0 fi AC_SUBST([HAVE_DIRENT_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 ]], [alphasort closedir dirfd fdopendir opendir readdir rewinddir scandir]) ]) AC_DEFUN([gl_DIRENT_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_DIRENT_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_DIRENT_H_DEFAULTS], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl for REPLACE_FCHDIR GNULIB_OPENDIR=0; AC_SUBST([GNULIB_OPENDIR]) GNULIB_READDIR=0; AC_SUBST([GNULIB_READDIR]) GNULIB_REWINDDIR=0; AC_SUBST([GNULIB_REWINDDIR]) GNULIB_CLOSEDIR=0; AC_SUBST([GNULIB_CLOSEDIR]) GNULIB_DIRFD=0; AC_SUBST([GNULIB_DIRFD]) GNULIB_FDOPENDIR=0; AC_SUBST([GNULIB_FDOPENDIR]) GNULIB_SCANDIR=0; AC_SUBST([GNULIB_SCANDIR]) GNULIB_ALPHASORT=0; AC_SUBST([GNULIB_ALPHASORT]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_OPENDIR=1; AC_SUBST([HAVE_OPENDIR]) HAVE_READDIR=1; AC_SUBST([HAVE_READDIR]) HAVE_REWINDDIR=1; AC_SUBST([HAVE_REWINDDIR]) HAVE_CLOSEDIR=1; AC_SUBST([HAVE_CLOSEDIR]) HAVE_DECL_DIRFD=1; AC_SUBST([HAVE_DECL_DIRFD]) HAVE_DECL_FDOPENDIR=1;AC_SUBST([HAVE_DECL_FDOPENDIR]) HAVE_FDOPENDIR=1; AC_SUBST([HAVE_FDOPENDIR]) HAVE_SCANDIR=1; AC_SUBST([HAVE_SCANDIR]) HAVE_ALPHASORT=1; AC_SUBST([HAVE_ALPHASORT]) REPLACE_OPENDIR=0; AC_SUBST([REPLACE_OPENDIR]) REPLACE_CLOSEDIR=0; AC_SUBST([REPLACE_CLOSEDIR]) REPLACE_DIRFD=0; AC_SUBST([REPLACE_DIRFD]) REPLACE_FDOPENDIR=0; AC_SUBST([REPLACE_FDOPENDIR]) ]) # serial 26 -*- Autoconf -*- dnl Find out how to get the file descriptor associated with an open DIR*. # Copyright (C) 2001-2006, 2008-2018 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_DIRFD], [ AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl Persuade glibc to declare dirfd(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS([dirfd]) AC_CHECK_DECLS([dirfd], , , [[#include #include ]]) if test $ac_cv_have_decl_dirfd = no; then HAVE_DECL_DIRFD=0 fi AC_CACHE_CHECK([whether dirfd is a macro], [gl_cv_func_dirfd_macro], [AC_EGREP_CPP([dirent_header_defines_dirfd], [ #include #include #ifdef dirfd dirent_header_defines_dirfd #endif], [gl_cv_func_dirfd_macro=yes], [gl_cv_func_dirfd_macro=no])]) # Use the replacement if we have no function or macro with that name, # or if OS/2 kLIBC whose dirfd() does not work. # Replace only if the system declares dirfd already. case $ac_cv_func_dirfd,$gl_cv_func_dirfd_macro,$host_os,$ac_cv_have_decl_dirfd in no,no,*,yes | *,*,os2*,yes) REPLACE_DIRFD=1 AC_DEFINE([REPLACE_DIRFD], [1], [Define to 1 if gnulib's dirfd() replacement is used.]);; esac ]) dnl Prerequisites of lib/dirfd.c. AC_DEFUN([gl_PREREQ_DIRFD], [ AC_CACHE_CHECK([how to get the file descriptor associated with an open DIR*], [gl_cv_sys_dir_fd_member_name], [ dirfd_save_CFLAGS=$CFLAGS for ac_expr in d_fd dd_fd; do CFLAGS="$CFLAGS -DDIR_FD_MEMBER_NAME=$ac_expr" AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #include #include ]], [[DIR *dir_p = opendir("."); (void) dir_p->DIR_FD_MEMBER_NAME;]])], [dir_fd_found=yes] ) CFLAGS=$dirfd_save_CFLAGS test "$dir_fd_found" = yes && break done test "$dir_fd_found" = yes || ac_expr=no_such_member gl_cv_sys_dir_fd_member_name=$ac_expr ] ) if test $gl_cv_sys_dir_fd_member_name != no_such_member; then AC_DEFINE_UNQUOTED([DIR_FD_MEMBER_NAME], [$gl_cv_sys_dir_fd_member_name], [the name of the file descriptor member of DIR]) fi AH_VERBATIM([DIR_TO_FD], [#ifdef DIR_FD_MEMBER_NAME # define DIR_TO_FD(Dir_p) ((Dir_p)->DIR_FD_MEMBER_NAME) #else # define DIR_TO_FD(Dir_p) -1 #endif ]) ]) #serial 10 -*- autoconf -*- dnl Copyright (C) 2002-2006, 2009-2018 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_DIRNAME], [ AC_REQUIRE([gl_DIRNAME_LGPL]) ]) AC_DEFUN([gl_DIRNAME_LGPL], [ dnl Prerequisites of lib/dirname.h. AC_REQUIRE([gl_DOUBLE_SLASH_ROOT]) dnl No prerequisites of lib/basename-lgpl.c, lib/dirname-lgpl.c, dnl lib/stripslash.c. ]) # double-slash-root.m4 serial 4 -*- Autoconf -*- dnl Copyright (C) 2006, 2008-2018 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_SLASH_ROOT], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_CACHE_CHECK([whether // is distinct from /], [gl_cv_double_slash_root], [ if test x"$cross_compiling" = xyes ; then # When cross-compiling, there is no way to tell whether // is special # short of a list of hosts. However, the only known hosts to date # that have a distinct // are Apollo DomainOS (too old to port to), # Cygwin, and z/OS. If anyone knows of another system for which // has # special semantics and is distinct from /, please report it to # . case $host in *-cygwin | i370-ibm-openedition) gl_cv_double_slash_root=yes ;; *) # Be optimistic and assume that / and // are the same when we # don't know. gl_cv_double_slash_root='unknown, assuming no' ;; esac else set x `ls -di / // 2>/dev/null` if test "$[2]" = "$[4]" && wc //dev/null >/dev/null 2>&1; then gl_cv_double_slash_root=no else gl_cv_double_slash_root=yes fi fi]) if test "$gl_cv_double_slash_root" = yes; then AC_DEFINE([DOUBLE_SLASH_IS_DISTINCT_ROOT], [1], [Define to 1 if // is a file system root distinct from /.]) fi ]) #serial 25 dnl Copyright (C) 2002, 2005, 2007, 2009-2018 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 $HAVE_DUP2 = 1; then REPLACE_DUP2=1 fi fi ]) ]) # Prerequisites of lib/dup2.c. AC_DEFUN([gl_PREREQ_DUP2], []) # eealloc.m4 serial 3 dnl Copyright (C) 2003, 2009-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_EEALLOC], [ AC_REQUIRE([gl_EEMALLOC]) AC_REQUIRE([gl_EEREALLOC]) ]) AC_DEFUN([gl_EEMALLOC], [ _AC_FUNC_MALLOC_IF( [gl_cv_func_malloc_0_nonnull=1], [gl_cv_func_malloc_0_nonnull=0]) AC_DEFINE_UNQUOTED([MALLOC_0_IS_NONNULL], [$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 6 dnl Copyright (C) 2001-2004, 2006-2018 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_MSG_CHECKING([if $2 is properly declared]) AC_CACHE_VAL([gt_cv_var], [ AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[$1 extern struct { int foo; } $2;]], [[$2.foo = 1;]])], [gt_cv_var=no], [gt_cv_var=yes])]) AC_MSG_RESULT([$gt_cv_var]) 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 12 dnl Copyright (C) 2004, 2006, 2008-2018 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_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 Autoconf >= 2.61 has AC_COMPUTE_INT built-in. dnl Remove this when we can assume autoconf >= 2.61. m4_ifdef([AC_COMPUTE_INT], [], [ AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])]) ]) #serial 14 # Copyright (C) 1996-1998, 2001-2004, 2009-2018 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_ERROR], [ dnl We don't use AC_FUNC_ERROR_AT_LINE any more, because it is no longer dnl maintained in Autoconf and because it invokes AC_LIBOBJ. AC_CACHE_CHECK([for error_at_line], [ac_cv_lib_error_at_line], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[error_at_line (0, 0, "", 0, "an error occurred");]])], [ac_cv_lib_error_at_line=yes], [ac_cv_lib_error_at_line=no])]) ]) # Prerequisites of lib/error.c. AC_DEFUN([gl_PREREQ_ERROR], [ AC_REQUIRE([AC_FUNC_STRERROR_R]) : ]) # euidaccess.m4 serial 15 dnl Copyright (C) 2002-2018 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_NONREENTRANT_EUIDACCESS], [ AC_REQUIRE([gl_FUNC_EUIDACCESS]) AC_CHECK_DECLS([setregid]) AC_DEFINE([PREFER_NONREENTRANT_EUIDACCESS], [1], [Define this if you prefer euidaccess to return the correct result even if this would make it nonreentrant. Define this only if your entire application is safe even if the uid or gid might temporarily change. If your application uses signal handlers or threads it is probably not safe.]) ]) AC_DEFUN([gl_FUNC_EUIDACCESS], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl Persuade glibc to declare euidaccess(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS([euidaccess]) if test $ac_cv_func_euidaccess = no; then HAVE_EUIDACCESS=0 fi ]) # Prerequisites of lib/euidaccess.c. AC_DEFUN([gl_PREREQ_EUIDACCESS], [ dnl Prefer POSIX faccessat over non-standard euidaccess. AC_CHECK_FUNCS_ONCE([faccessat]) dnl Try various other non-standard fallbacks. AC_CHECK_HEADERS([libgen.h]) AC_FUNC_GETGROUPS # Solaris 9 and 10 need -lgen to get the eaccess function. # Save and restore LIBS so -lgen isn't added to it. Otherwise, *all* # programs in the package would end up linked with that potentially-shared # library, inducing unnecessary run-time overhead. LIB_EACCESS= AC_SUBST([LIB_EACCESS]) gl_saved_libs=$LIBS AC_SEARCH_LIBS([eaccess], [gen], [test "$ac_cv_search_eaccess" = "none required" || LIB_EACCESS=$ac_cv_search_eaccess]) AC_CHECK_FUNCS([eaccess]) LIBS=$gl_saved_libs ]) # exponentd.m4 serial 3 dnl Copyright (C) 2007-2008, 2010-2018 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, 2006-2018 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 2012-2018 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. 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/bleeding-edge-potential/latest-per-pkg/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. */ #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]) ]) # serial 8 # See if we need to provide faccessat replacement. dnl Copyright (C) 2009-2018 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_FACCESSAT], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) dnl Persuade glibc to declare faccessat(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([faccessat]) if test $ac_cv_func_faccessat = no; then HAVE_FACCESSAT=0 else case "$gl_cv_func_lstat_dereferences_slashed_symlink" in *yes) ;; *) REPLACE_FACCESSAT=1 ;; esac fi ]) # Prerequisites of lib/faccessat.c. AC_DEFUN([gl_PREREQ_FACCESSAT], [ AC_CHECK_FUNCS([access]) ]) # fchdir.m4 serial 23 dnl Copyright (C) 2006-2018 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_FCHDIR], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_DECLS_ONCE([fchdir]) if test $ac_cv_have_decl_fchdir = no; then HAVE_DECL_FCHDIR=0 fi AC_REQUIRE([gl_TEST_FCHDIR]) if test $HAVE_FCHDIR = 0; then AC_LIBOBJ([fchdir]) gl_PREREQ_FCHDIR AC_DEFINE([REPLACE_FCHDIR], [1], [Define to 1 if gnulib's fchdir() replacement is used.]) dnl We must also replace anything that can manipulate a directory fd, dnl to keep our bookkeeping up-to-date. We don't have to replace dnl fstatat, since no platform has fstatat but lacks fchdir. AC_CACHE_CHECK([whether open can visit directories], [gl_cv_func_open_directory_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include ]], [return open(".", O_RDONLY) < 0;])], [gl_cv_func_open_directory_works=yes], [gl_cv_func_open_directory_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_open_directory_works="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_func_open_directory_works="guessing no" ;; # If we don't know, assume the worst. *) gl_cv_func_open_directory_works="guessing no" ;; esac ])]) case "$gl_cv_func_open_directory_works" in *yes) ;; *) AC_DEFINE([REPLACE_OPEN_DIRECTORY], [1], [Define to 1 if open() should work around the inability to open a directory.]) ;; esac fi ]) # Determine whether to use the overrides in lib/fchdir.c. AC_DEFUN([gl_TEST_FCHDIR], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([fchdir]) if test $ac_cv_func_fchdir = no; then HAVE_FCHDIR=0 fi ]) # Prerequisites of lib/fchdir.c. AC_DEFUN([gl_PREREQ_FCHDIR], [:]) # fchmodat.m4 serial 1 dnl Copyright (C) 2004-2018 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 Jim Meyering. AC_DEFUN([gl_FUNC_FCHMODAT], [ AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([fchmodat lchmod]) if test $ac_cv_func_fchmodat != yes; then HAVE_FCHMODAT=0 fi ]) # fchownat.m4 serial 2 dnl Copyright (C) 2004-2018 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 Jim Meyering. # If we have the fchownat function, and it has the bug (in glibc-2.4) # that it dereferences symlinks even with AT_SYMLINK_NOFOLLOW, then # use the replacement function. # Also if the fchownat function, like chown, has the trailing slash bug, # use the replacement function. # Also use the replacement function if fchownat is simply not available. AC_DEFUN([gl_FUNC_FCHOWNAT], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_FUNC_CHOWN]) AC_CHECK_FUNC([fchownat], [gl_FUNC_FCHOWNAT_DEREF_BUG( [REPLACE_FCHOWNAT=1 AC_DEFINE([FCHOWNAT_NOFOLLOW_BUG], [1], [Define to 1 if your platform has fchownat, but it cannot perform lchown tasks.]) ]) gl_FUNC_FCHOWNAT_EMPTY_FILENAME_BUG( [REPLACE_FCHOWNAT=1 AC_DEFINE([FCHOWNAT_EMPTY_FILENAME_BUG], [1], [Define to 1 if your platform has fchownat, but it does not reject an empty file name.]) ]) if test $REPLACE_CHOWN = 1; then REPLACE_FCHOWNAT=1 fi], [HAVE_FCHOWNAT=0]) ]) # gl_FUNC_FCHOWNAT_DEREF_BUG([ACTION-IF-BUGGY[, ACTION-IF-NOT_BUGGY]]) AC_DEFUN([gl_FUNC_FCHOWNAT_DEREF_BUG], [ dnl Persuade glibc's to declare fchownat(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CACHE_CHECK([whether fchownat works with AT_SYMLINK_NOFOLLOW], [gl_cv_func_fchownat_nofollow_works], [ gl_dangle=conftest.dangle # Remove any remnants of a previous test. rm -f $gl_dangle # Arrange for deletion of the temporary file this test creates. ac_clean_files="$ac_clean_files $gl_dangle" ln -s conftest.no-such $gl_dangle AC_RUN_IFELSE( [AC_LANG_SOURCE( [[ #include #include #include #include #include int main () { return (fchownat (AT_FDCWD, "$gl_dangle", -1, getgid (), AT_SYMLINK_NOFOLLOW) != 0 && errno == ENOENT); } ]])], [gl_cv_func_fchownat_nofollow_works=yes], [gl_cv_func_fchownat_nofollow_works=no], [gl_cv_func_fchownat_nofollow_works=no]) ]) AS_IF([test $gl_cv_func_fchownat_nofollow_works = no], [$1], [$2]) ]) # gl_FUNC_FCHOWNAT_EMPTY_FILENAME_BUG([ACTION-IF-BUGGY[, ACTION-IF-NOT_BUGGY]]) AC_DEFUN([gl_FUNC_FCHOWNAT_EMPTY_FILENAME_BUG], [ dnl Persuade glibc's to declare fchownat(). AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CACHE_CHECK([whether fchownat works with an empty file name], [gl_cv_func_fchownat_empty_filename_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include ]], [[int fd; int ret; if (mkdir ("conftestdir", 0700) < 0) return 2; fd = open ("conftestdir", O_RDONLY); if (fd < 0) return 3; ret = fchownat (fd, "", -1, -1, 0); close (fd); rmdir ("conftestdir"); return ret == 0; ]])], [gl_cv_func_fchownat_empty_filename_works=yes], [gl_cv_func_fchownat_empty_filename_works=no], [gl_cv_func_fchownat_empty_filename_works="guessing no"]) ]) AS_IF([test "$gl_cv_func_fchownat_empty_filename_works" != yes], [$1], [$2]) ]) # fcntl-o.m4 serial 5 dnl Copyright (C) 2006, 2009-2018 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. # 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. dnl AC_USE_SYSTEM_EXTENSIONS was introduced in autoconf 2.60 and obsoletes dnl AC_GNU_SOURCE. m4_ifdef([AC_USE_SYSTEM_EXTENSIONS], [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])], [AC_REQUIRE([AC_GNU_SOURCE])]) 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) 2009-2018 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 15 # Configure fcntl.h. dnl Copyright (C) 2006-2007, 2009-2018 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_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_FCNTL=0; AC_SUBST([REPLACE_FCNTL]) REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN]) REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT]) ]) # filenamecat.m4 serial 11 dnl Copyright (C) 2002-2006, 2009-2018 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_FILE_NAME_CONCAT], [ AC_REQUIRE([gl_FILE_NAME_CONCAT_LGPL]) ]) AC_DEFUN([gl_FILE_NAME_CONCAT_LGPL], [ dnl Prerequisites of lib/filenamecat-lgpl.c. AC_CHECK_FUNCS_ONCE([mempcpy]) ]) # serial 5 # Check for flexible array member support. # Copyright (C) 2006, 2009-2018 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 $ac_cv_c_flexmember = yes; then AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [], [Define to nothing if C supports flexible array members, and to 1 if it does not. That way, with a declaration like 'struct s { int n; double d@<:@FLEXIBLE_ARRAY_MEMBER@:>@; };', the struct hack can be used with pre-C99 compilers. When computing the size of such an object, don't use 'sizeof (struct s)' as it overestimates the size. Use 'offsetof (struct s, d)' instead. Don't use 'offsetof (struct s, d@<:@0@:>@)', as this doesn't work with MSVC and with C++ compilers.]) else AC_DEFINE([FLEXIBLE_ARRAY_MEMBER], [1]) fi ]) # float_h.m4 serial 12 dnl Copyright (C) 2007, 2009-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FLOAT_H], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) FLOAT_H= REPLACE_FLOAT_LDBL=0 case "$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]) ]) # fstat.m4 serial 6 dnl Copyright (C) 2011-2018 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]) : ]) # fstatat.m4 serial 4 dnl Copyright (C) 2004-2018 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 Jim Meyering. # If we have the fstatat function, and it has the bug (in AIX 7.1) # that it does not fill in st_size correctly, use the replacement function. AC_DEFUN([gl_FUNC_FSTATAT], [ AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_FUNCS_ONCE([fstatat]) if test $ac_cv_func_fstatat = no; then HAVE_FSTATAT=0 else dnl Test for an AIX 7.1 bug; see dnl . AC_CACHE_CHECK([whether fstatat (..., 0) works], [gl_cv_func_fstatat_zero_flag], [AC_RUN_IFELSE( [AC_LANG_SOURCE( [[ #include #include int main (void) { struct stat a; return fstatat (AT_FDCWD, ".", &a, 0) != 0; } ]])], [gl_cv_func_fstatat_zero_flag=yes], [gl_cv_func_fstatat_zero_flag=no], [case "$host_os" in aix*) gl_cv_func_fstatat_zero_flag="guessing no";; *) gl_cv_func_fstatat_zero_flag="guessing yes";; esac ]) ]) case $gl_cv_func_fstatat_zero_flag+$gl_cv_func_lstat_dereferences_slashed_symlink in *yes+*yes) ;; *) REPLACE_FSTATAT=1 ;; esac case $host_os in solaris*) REPLACE_FSTATAT=1 ;; esac case $REPLACE_FSTATAT,$gl_cv_func_fstatat_zero_flag in 1,*yes) AC_DEFINE([HAVE_WORKING_FSTATAT_ZERO_FLAG], [1], [Define to 1 if fstatat (..., 0) works. For example, it does not work in AIX 7.1.]) ;; esac fi ]) # getcwd.m4 - check for working getcwd that is compatible with glibc # Copyright (C) 2001, 2003-2007, 2009-2018 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 15 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 __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 Cygwin. cygwin*) gl_cv_func_getcwd_null="guessing yes";; # If we don't know, assume the worst. *) gl_cv_func_getcwd_null="guessing no";; 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]) : ]) # getdtablesize.m4 serial 7 dnl Copyright (C) 2008-2018 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], [:]) # serial 20 dnl From Jim Meyering. dnl A wrapper around AC_FUNC_GETGROUPS. # Copyright (C) 1996-1997, 1999-2004, 2008-2018 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. m4_version_prereq([2.70], [] ,[ # This is taken from the following Autoconf patch: # https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9 AC_DEFUN([AC_FUNC_GETGROUPS], [ AC_REQUIRE([AC_TYPE_GETGROUPS])dnl AC_REQUIRE([AC_TYPE_SIZE_T])dnl AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles AC_CHECK_FUNC([getgroups]) # If we don't yet have getgroups, see if it's in -lbsd. # This is reported to be necessary on an ITOS 3000WS running SEIUX 3.1. ac_save_LIBS=$LIBS if test $ac_cv_func_getgroups = no; then AC_CHECK_LIB(bsd, getgroups, [GETGROUPS_LIB=-lbsd]) fi # Run the program to test the functionality of the system-supplied # getgroups function only if there is such a function. if test $ac_cv_func_getgroups = yes; then AC_CACHE_CHECK([for working getgroups], [ac_cv_func_getgroups_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [AC_INCLUDES_DEFAULT], [[/* On Ultrix 4.3, getgroups (0, 0) always fails. */ return getgroups (0, 0) == -1;]]) ], [ac_cv_func_getgroups_works=yes], [ac_cv_func_getgroups_works=no], [case "$host_os" in # (( # Guess yes on glibc systems. *-gnu* | gnu*) ac_cv_func_getgroups_works="guessing yes" ;; # If we don't know, assume the worst. *) ac_cv_func_getgroups_works="guessing no" ;; esac ]) ]) else ac_cv_func_getgroups_works=no fi case "$ac_cv_func_getgroups_works" in *yes) AC_DEFINE([HAVE_GETGROUPS], [1], [Define to 1 if your system has a working `getgroups' function.]) ;; esac LIBS=$ac_save_LIBS ])# AC_FUNC_GETGROUPS ]) AC_DEFUN([gl_FUNC_GETGROUPS], [ AC_REQUIRE([AC_TYPE_GETGROUPS]) AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_FUNC_GETGROUPS if test $ac_cv_func_getgroups != yes; then HAVE_GETGROUPS=0 else if test "$ac_cv_type_getgroups" != gid_t \ || { case "$ac_cv_func_getgroups_works" in *yes) false;; *) true;; esac }; then REPLACE_GETGROUPS=1 AC_DEFINE([GETGROUPS_ZERO_BUG], [1], [Define this to 1 if getgroups(0,NULL) does not return the number of groups.]) else dnl Detect FreeBSD bug; POSIX requires getgroups(-1,ptr) to fail. AC_CACHE_CHECK([whether getgroups handles negative values], [gl_cv_func_getgroups_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], [[int size = getgroups (0, 0); gid_t *list = malloc (size * sizeof *list); int result = getgroups (-1, list) != -1; free (list); return result;]])], [gl_cv_func_getgroups_works=yes], [gl_cv_func_getgroups_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_getgroups_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_getgroups_works="guessing no" ;; esac ])]) case "$gl_cv_func_getgroups_works" in *yes) ;; *) REPLACE_GETGROUPS=1 ;; esac fi fi test -n "$GETGROUPS_LIB" && LIBS="$GETGROUPS_LIB $LIBS" ]) # getopt.m4 serial 46 dnl Copyright (C) 2002-2006, 2008-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Request a POSIX compliant getopt function. AC_DEFUN([gl_FUNC_GETOPT_POSIX], [ m4_divert_text([DEFAULTS], [gl_getopt_required=POSIX]) AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_GETOPT_CHECK_HEADERS]) dnl Other modules can request the gnulib implementation of the getopt dnl functions unconditionally, by defining gl_REPLACE_GETOPT_ALWAYS. dnl argp.m4 does this. m4_ifdef([gl_REPLACE_GETOPT_ALWAYS], [ REPLACE_GETOPT=1 ], [ REPLACE_GETOPT=0 if test -n "$gl_replace_getopt"; then REPLACE_GETOPT=1 fi ]) if test $REPLACE_GETOPT = 1; then dnl Arrange for getopt.h to be created. gl_GETOPT_SUBSTITUTE_HEADER fi ]) # Request a POSIX compliant getopt function with GNU extensions (such as # options with optional arguments) and the functions getopt_long, # getopt_long_only. AC_DEFUN([gl_FUNC_GETOPT_GNU], [ dnl Set the variable gl_getopt_required, so that all invocations of dnl gl_GETOPT_CHECK_HEADERS in the scope of the current configure file dnl will check for getopt with GNU extensions. dnl This means that if one gnulib-tool invocation requests getopt-posix dnl and another gnulib-tool invocation requests getopt-gnu, it is as if dnl both had requested getopt-gnu. m4_divert_text([INIT_PREPARE], [gl_getopt_required=GNU]) dnl No need to invoke gl_FUNC_GETOPT_POSIX here; this is automatically dnl done through the module dependency getopt-gnu -> getopt-posix. ]) # Determine whether to replace the entire getopt facility. AC_DEFUN([gl_GETOPT_CHECK_HEADERS], [ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_REQUIRE([AC_PROG_AWK]) dnl for awk that supports ENVIRON dnl Persuade Solaris to declare optarg, optind, opterr, optopt. AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) gl_CHECK_NEXT_HEADERS([getopt.h]) if test $ac_cv_header_getopt_h = yes; then HAVE_GETOPT_H=1 else HAVE_GETOPT_H=0 fi AC_SUBST([HAVE_GETOPT_H]) gl_replace_getopt= dnl Test whether is available. if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then AC_CHECK_HEADERS([getopt.h], [], [gl_replace_getopt=yes]) fi dnl Test whether the function getopt_long is available. if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then AC_CHECK_FUNCS([getopt_long_only], [], [gl_replace_getopt=yes]) fi dnl POSIX 2008 does not specify leading '+' behavior, but see dnl http://austingroupbugs.net/view.php?id=191 for a recommendation on dnl the next version of POSIX. For now, we only guarantee leading '+' dnl behavior with getopt-gnu. if test -z "$gl_replace_getopt"; then AC_CACHE_CHECK([whether getopt is POSIX compatible], [gl_cv_func_getopt_posix], [ dnl Merging these three different test programs into a single one dnl would require a reset mechanism. On BSD systems, it can be done dnl through 'optreset'; on some others (glibc), it can be done by dnl setting 'optind' to 0; on others again (HP-UX, IRIX, OSF/1, dnl Solaris 9, musl libc), there is no such mechanism. if test $cross_compiling = no; then dnl Sanity check. Succeeds everywhere (except on MSVC, dnl which lacks and getopt() entirely). AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include int main () { static char program[] = "program"; static char a[] = "-a"; static char foo[] = "foo"; static char bar[] = "bar"; char *argv[] = { program, a, foo, bar, NULL }; int c; c = getopt (4, argv, "ab"); if (!(c == 'a')) return 1; c = getopt (4, argv, "ab"); if (!(c == -1)) return 2; if (!(optind == 2)) return 3; return 0; } ]])], [gl_cv_func_getopt_posix=maybe], [gl_cv_func_getopt_posix=no]) if test $gl_cv_func_getopt_posix = maybe; then dnl Sanity check with '+'. Succeeds everywhere (except on MSVC, dnl which lacks and getopt() entirely). AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include int main () { static char program[] = "program"; static char donald[] = "donald"; static char p[] = "-p"; static char billy[] = "billy"; static char duck[] = "duck"; static char a[] = "-a"; static char bar[] = "bar"; char *argv[] = { program, donald, p, billy, duck, a, bar, NULL }; int c; c = getopt (7, argv, "+abp:q:"); if (!(c == -1)) return 4; if (!(strcmp (argv[0], "program") == 0)) return 5; if (!(strcmp (argv[1], "donald") == 0)) return 6; if (!(strcmp (argv[2], "-p") == 0)) return 7; if (!(strcmp (argv[3], "billy") == 0)) return 8; if (!(strcmp (argv[4], "duck") == 0)) return 9; if (!(strcmp (argv[5], "-a") == 0)) return 10; if (!(strcmp (argv[6], "bar") == 0)) return 11; if (!(optind == 1)) return 12; return 0; } ]])], [gl_cv_func_getopt_posix=maybe], [gl_cv_func_getopt_posix=no]) fi if test $gl_cv_func_getopt_posix = maybe; then dnl Detect Mac OS X 10.5, AIX 7.1, mingw bug. AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include int main () { static char program[] = "program"; static char ab[] = "-ab"; char *argv[3] = { program, ab, NULL }; if (getopt (2, argv, "ab:") != 'a') return 13; if (getopt (2, argv, "ab:") != '?') return 14; if (optopt != 'b') return 15; if (optind != 2) return 16; return 0; } ]])], [gl_cv_func_getopt_posix=yes], [gl_cv_func_getopt_posix=no]) fi else case "$host_os" in darwin* | aix* | mingw*) gl_cv_func_getopt_posix="guessing no";; *) gl_cv_func_getopt_posix="guessing yes";; esac fi ]) case "$gl_cv_func_getopt_posix" in *no) gl_replace_getopt=yes ;; esac fi if test -z "$gl_replace_getopt" && test $gl_getopt_required = GNU; then AC_CACHE_CHECK([for working GNU getopt function], [gl_cv_func_getopt_gnu], [# Even with POSIXLY_CORRECT, the GNU extension of leading '-' in the # optstring is necessary for programs like m4 that have POSIX-mandated # semantics for supporting options interspersed with files. # Also, since getopt_long is a GNU extension, we require optind=0. # Bash ties 'set -o posix' to a non-exported POSIXLY_CORRECT; # so take care to revert to the correct (non-)export state. dnl GNU Coding Standards currently allow awk but not env; besides, env dnl is ambiguous with environment values that contain newlines. gl_awk_probe='BEGIN { if ("POSIXLY_CORRECT" in ENVIRON) print "x" }' case ${POSIXLY_CORRECT+x}`$AWK "$gl_awk_probe" #include #include ]GL_NOCRASH[ ]], [[ int result = 0; nocrash_init(); /* This code succeeds on glibc 2.8, OpenBSD 4.0, Cygwin, mingw, and fails on Mac OS X 10.5, AIX 5.2, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 10. */ { static char conftest[] = "conftest"; static char plus[] = "-+"; char *argv[3] = { conftest, plus, NULL }; opterr = 0; if (getopt (2, argv, "+a") != '?') result |= 1; } /* This code succeeds on glibc 2.8, mingw, and fails on Mac OS X 10.5, OpenBSD 4.0, AIX 5.2, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x. */ { static char program[] = "program"; static char p[] = "-p"; static char foo[] = "foo"; static char bar[] = "bar"; char *argv[] = { program, p, foo, bar, NULL }; optind = 1; if (getopt (4, argv, "p::") != 'p') result |= 2; else if (optarg != NULL) result |= 4; else if (getopt (4, argv, "p::") != -1) result |= 6; else if (optind != 2) result |= 8; } /* This code succeeds on glibc 2.8 and fails on Cygwin 1.7.0. */ { static char program[] = "program"; static char foo[] = "foo"; static char p[] = "-p"; char *argv[] = { program, foo, p, NULL }; optind = 0; if (getopt (3, argv, "-p") != 1) result |= 16; else if (getopt (3, argv, "-p") != 'p') result |= 16; } /* This code fails on glibc 2.11. */ { static char program[] = "program"; static char b[] = "-b"; static char a[] = "-a"; char *argv[] = { program, b, a, NULL }; optind = opterr = 0; if (getopt (3, argv, "+:a:b") != 'b') result |= 32; else if (getopt (3, argv, "+:a:b") != ':') result |= 32; } /* This code dumps core on glibc 2.14. */ { static char program[] = "program"; static char w[] = "-W"; static char dummy[] = "dummy"; char *argv[] = { program, w, dummy, NULL }; optind = opterr = 1; if (getopt (3, argv, "W;") != 'W') result |= 64; } return result; ]])], [gl_cv_func_getopt_gnu=yes], [gl_cv_func_getopt_gnu=no], [dnl Cross compiling. Assume the worst, even on glibc platforms. gl_cv_func_getopt_gnu="guessing no" ]) case $gl_had_POSIXLY_CORRECT in exported) ;; yes) AS_UNSET([POSIXLY_CORRECT]); POSIXLY_CORRECT=1 ;; *) AS_UNSET([POSIXLY_CORRECT]) ;; esac ]) if test "$gl_cv_func_getopt_gnu" != yes; then gl_replace_getopt=yes else AC_CACHE_CHECK([for working GNU getopt_long function], [gl_cv_func_getopt_long_gnu], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include #include ]], [[static const struct option long_options[] = { { "xtremely-",no_argument, NULL, 1003 }, { "xtra", no_argument, NULL, 1001 }, { "xtreme", no_argument, NULL, 1002 }, { "xtremely", no_argument, NULL, 1003 }, { NULL, 0, NULL, 0 } }; /* This code fails on OpenBSD 5.0. */ { static char program[] = "program"; static char xtremel[] = "--xtremel"; char *argv[] = { program, xtremel, NULL }; int option_index; optind = 1; opterr = 0; if (getopt_long (2, argv, "", long_options, &option_index) != 1003) return 1; } return 0; ]])], [gl_cv_func_getopt_long_gnu=yes], [gl_cv_func_getopt_long_gnu=no], [dnl Cross compiling. Guess no on OpenBSD, yes otherwise. case "$host_os" in openbsd*) gl_cv_func_getopt_long_gnu="guessing no";; *) gl_cv_func_getopt_long_gnu="guessing yes";; esac ]) ]) case "$gl_cv_func_getopt_long_gnu" in *yes) ;; *) gl_replace_getopt=yes ;; esac fi fi ]) AC_DEFUN([gl_GETOPT_SUBSTITUTE_HEADER], [ AC_CHECK_HEADERS_ONCE([sys/cdefs.h]) 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]) AC_DEFINE([__GETOPT_PREFIX], [[rpl_]], [Define to rpl_ if the getopt replacement functions and variables should be used.]) GETOPT_H=getopt.h GETOPT_CDEFS_H=getopt-cdefs.h AC_SUBST([GETOPT_H]) AC_SUBST([GETOPT_CDEFS_H]) ]) # getprogname.m4 - check for getprogname or replacements for it # Copyright (C) 2016-2018 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 4 AC_DEFUN([gl_FUNC_GETPROGNAME], [ AC_CHECK_FUNCS_ONCE([getprogname getexecname]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) ac_found=0 AC_CHECK_DECLS([program_invocation_name], [ac_found=1], [], [#include ]) AC_CHECK_DECLS([program_invocation_short_name], [ac_found=1], [], [#include ]) AC_CHECK_DECLS([__argv], [ac_found=1], [], [#include ]) # Incur the cost of this test only if none of the above worked. if test $ac_found = 0; then # On OpenBSD 5.1, using the global __progname variable appears to be # the only way to implement getprogname. AC_CACHE_CHECK([whether __progname is defined in default libraries], [gl_cv_var___progname], [ gl_cv_var___progname= AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[extern char *__progname;]], [[return *__progname;]] )], [gl_cv_var___progname=yes] ) ] ) if test "$gl_cv_var___progname" = yes; then AC_DEFINE([HAVE_VAR___PROGNAME], 1, [Define if you have a global __progname variable]) fi fi ]) # gettime.m4 serial 8 dnl Copyright (C) 2002, 2004-2006, 2009-2018 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_GETTIME], [ dnl Prerequisites of lib/gettime.c. AC_REQUIRE([gl_CLOCK_TIME]) AC_REQUIRE([gl_TIMESPEC]) AC_CHECK_FUNCS_ONCE([gettimeofday nanotime]) ]) # serial 25 # Copyright (C) 2001-2003, 2005, 2007, 2009-2018 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 no on native Windows. mingw*) gl_cv_func_gettimeofday_clobber="guessing no" ;; # If we don't know, assume the worst. *) gl_cv_func_gettimeofday_clobber="guessing yes" ;; esac ])]) case "$gl_cv_func_gettimeofday_clobber" in *yes) REPLACE_GETTIMEOFDAY=1 AC_DEFINE([GETTIMEOFDAY_CLOBBERS_LOCALTIME], [1], [Define if gettimeofday clobbers the localtime buffer.]) gl_LOCALTIME_BUFFER_NEEDED ;; esac ]) # Prerequisites of lib/gettimeofday.c. AC_DEFUN([gl_PREREQ_GETTIMEOFDAY], [:]) # glibc21.m4 serial 5 dnl Copyright (C) 2000-2002, 2004, 2008, 2010-2018 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # Test for the GNU C Library, version 2.1 or newer, or uClibc. # From Bruno Haible. AC_DEFUN([gl_GLIBC21], [ AC_CACHE_CHECK([whether we are using the GNU C Library >= 2.1 or uClibc], [ac_cv_gnu_library_2_1], [AC_EGREP_CPP([Lucky], [ #include #ifdef __GNU_LIBRARY__ #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2) Lucky GNU user #endif #endif #ifdef __UCLIBC__ Lucky user #endif ], [ac_cv_gnu_library_2_1=yes], [ac_cv_gnu_library_2_1=no]) ] ) AC_SUBST([GLIBC21]) GLIBC21="$ac_cv_gnu_library_2_1" ] ) # gnulib-common.m4 serial 38 dnl Copyright (C) 2007-2018 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_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. 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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 $1 shall be considered present.]) ]) # gl_MODULE_INDICATOR_FOR_TESTS([modulename]) # defines a C macro indicating the presence of the given module # in lib or tests. 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If not, see . # # As a special exception to the GNU General Public License, # this file may be distributed as part of a program that # contains a configuration script generated by Autoconf, under # the same distribution terms as the rest of that program. # # Generated by gnulib-tool. # # This file represents the compiled summary of the specification in # gnulib-cache.m4. It lists the computed macro invocations that need # to be invoked from configure.ac. # In projects that use version control, this file can be treated like # other built files. # This macro should be invoked from ./configure.ac, in the section # "Checks for programs", right after AC_PROG_CC, and certainly before # any checks for libraries, header files, types and library functions. AC_DEFUN([gl_EARLY], [ m4_pattern_forbid([^gl_[A-Z]])dnl the gnulib macro namespace m4_pattern_allow([^gl_ES$])dnl a valid locale name m4_pattern_allow([^gl_LIBOBJS$])dnl a variable m4_pattern_allow([^gl_LTLIBOBJS$])dnl a variable # Pre-early section. AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_PROG_AR_RANLIB]) # Code from module absolute-header: # Code from module alloca-opt: # Code from module argmatch: # Code from module assure: # Code from module at-internal: # Code from module backupfile: # Code from module bitrotate: # Code from module c-ctype: # Code from module c-strcase: # Code from module c-strcaseeq: # Code from module canonicalize-lgpl: # Code from module chdir: # Code from module chdir-long: # Code from module chown: # Code from module clock-time: # Code from module cloexec: # Code from module close: # Code from module closedir: # Code from module configmake: # Code from module d-ino: # Code from module diffseq: # Code from module dirent: # Code from module dirent-safer: # Code from module dirfd: # Code from module dirname: # Code from module dirname-lgpl: # Code from module dosname: # Code from module double-slash-root: # Code from module dup2: # Code from module environ: # Code from module errno: # Code from module error: # Code from module euidaccess: # Code from module exitfail: # Code from module extensions: # Code from module extern-inline: # Code from module faccessat: # Code from module fchdir: # Code from module fchmodat: # Code from module fchownat: # Code from module fcntl: # Code from module fcntl-h: # Code from module fd-hook: # Code from module fd-safer-flag: # Code from module filename: # Code from module filenamecat-lgpl: # Code from module flexmember: # Code from module float: # Code from module fstat: # Code from module fstatat: # Code from module full-write: # Code from module getcwd-lgpl: # Code from module getdate: # Code from module getdtablesize: # Code from module getgroups: # Code from module getopt-gnu: # Code from module getopt-posix: # Code from module getprogname: # Code from module gettext-h: # Code from module gettime: # Code from module gettimeofday: # Code from module git-version-gen: # Code from module gitlog-to-changelog: # Code from module gnumakefile: # Code from module gnupload: # Code from module group-member: # Code from module hard-locale: # Code from module hash: # Code from module ignore-value: # Code from module include_next: # Code from module intprops: # Code from module inttypes: # Code from module inttypes-incomplete: # Code from module largefile: AC_REQUIRE([AC_SYS_LARGEFILE]) # Code from module lchown: # Code from module limits-h: # Code from module linked-list: # Code from module list: # Code from module localcharset: # Code from module localtime-buffer: # Code from module lstat: # Code from module maintainer-makefile: # Code from module malloc: # Code from module malloc-gnu: # Code from module malloc-posix: # Code from module malloca: # Code from module manywarnings: # Code from module mbrtowc: # Code from module mbsinit: # Code from module memchr: # Code from module mempcpy: # Code from module memrchr: # Code from module minmax: # Code from module mkdir: # Code from module mkdirat: # Code from module mktime: # Code from module mktime-internal: # Code from module msvc-inval: # Code from module msvc-nothrow: # Code from module multiarch: # Code from module nocrash: # Code from module nstrftime: # Code from module open: # Code from module openat: # Code from module openat-die: # Code from module openat-h: # Code from module opendir: # Code from module parse-datetime: # Code from module pathmax: # Code from module progname: # Code from module quote: # Code from module quotearg: # Code from module quotearg-simple: # Code from module raise: # Code from module readdir: # Code from module readlink: # Code from module readlinkat: # Code from module realloc: # Code from module realloc-gnu: # Code from module realloc-posix: # Code from module rename: # Code from module renameat: # Code from module renameat2: # Code from module rmdir: # Code from module root-uid: # Code from module safe-write: # Code from module same-inode: # Code from module save-cwd: # Code from module setenv: # Code from module signal: # Code from module signal-h: # Code from module size_max: # Code from module snippet/_Noreturn: # Code from module snippet/arg-nonnull: # Code from module snippet/c++defs: # Code from module snippet/warn-on-use: # Code from module ssize_t: # Code from module stat: # Code from module stat-time: # Code from module statat: # Code from module stdarg: dnl Some compilers (e.g., AIX 5.3 cc) need to be in c99 mode dnl for the builtin va_copy to work. With Autoconf 2.60 or later, dnl gl_PROG_CC_C99 arranges for this. With older Autoconf gl_PROG_CC_C99 dnl shouldn't hurt, though installers are on their own to set c99 mode. gl_PROG_CC_C99 # Code from module stdbool: # Code from module stddef: # Code from module stdint: # Code from module stdio: # Code from module stdlib: # Code from module strdup-posix: # Code from module streq: # Code from module strerror: # Code from module strerror-override: # Code from module string: # Code from module strndup: # Code from module strnlen: # Code from module symlink: # Code from module symlinkat: # Code from module sys_stat: # Code from module sys_time: # Code from module sys_types: # Code from module tempname: # Code from module time: # Code from module time_r: # Code from module time_rz: # Code from module timegm: # Code from module timespec: # Code from module tzset: # Code from module unistd: # Code from module unistd-safer: # Code from module unlink: # Code from module unlinkat: # Code from module unsetenv: # Code from module update-copyright: # Code from module useless-if-before-free: # Code from module utime: # Code from module utime-h: # Code from module utimens: # Code from module utimensat: # Code from module vasnprintf: # Code from module vasprintf: # Code from module vc-list-files: # Code from module verify: # Code from module verror: # Code from module warnings: # Code from module wchar: # Code from module wctype-h: # Code from module write: # Code from module xalloc: # Code from module xalloc-die: # Code from module xalloc-oversized: # Code from module xlist: # Code from module xmemdup0: # Code from module xsize: # Code from module xstrndup: # Code from module xvasprintf: ]) # This macro should be invoked from ./configure.ac, in the section # "Check for header files, types and library functions". AC_DEFUN([gl_INIT], [ AM_CONDITIONAL([GL_COND_LIBTOOL], [false]) gl_cond_libtool=false gl_libdeps= gl_ltlibdeps= gl_m4_base='m4' m4_pushdef([AC_LIBOBJ], m4_defn([gl_LIBOBJ])) m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gl_REPLACE_FUNCS])) m4_pushdef([AC_LIBSOURCES], m4_defn([gl_LIBSOURCES])) m4_pushdef([gl_LIBSOURCES_LIST], []) m4_pushdef([gl_LIBSOURCES_DIR], []) gl_COMMON gl_source_base='lib' gl_FUNC_ALLOCA AC_LIBOBJ([openat-proc]) gl_BACKUPFILE gl_CANONICALIZE_LGPL if test $HAVE_CANONICALIZE_FILE_NAME = 0 || test $REPLACE_CANONICALIZE_FILE_NAME = 1; then AC_LIBOBJ([canonicalize-lgpl]) fi gl_MODULE_INDICATOR([canonicalize-lgpl]) gl_STDLIB_MODULE_INDICATOR([canonicalize_file_name]) gl_STDLIB_MODULE_INDICATOR([realpath]) gl_UNISTD_MODULE_INDICATOR([chdir]) gl_FUNC_CHDIR_LONG if test $gl_cv_have_arbitrary_file_name_length_limit = yes; then AC_LIBOBJ([chdir-long]) gl_PREREQ_CHDIR_LONG fi gl_FUNC_CHOWN if test $HAVE_CHOWN = 0 || test $REPLACE_CHOWN = 1; then AC_LIBOBJ([chown]) fi if test $REPLACE_CHOWN = 1 && test $ac_cv_func_fchown = no; then AC_LIBOBJ([fchown-stub]) fi gl_UNISTD_MODULE_INDICATOR([chown]) gl_CLOCK_TIME gl_MODULE_INDICATOR_FOR_TESTS([cloexec]) gl_FUNC_CLOSE if test $REPLACE_CLOSE = 1; then AC_LIBOBJ([close]) fi gl_UNISTD_MODULE_INDICATOR([close]) gl_FUNC_CLOSEDIR if test $HAVE_CLOSEDIR = 0 || test $REPLACE_CLOSEDIR = 1; then AC_LIBOBJ([closedir]) fi gl_DIRENT_MODULE_INDICATOR([closedir]) gl_CONFIGMAKE_PREP gl_CHECK_TYPE_STRUCT_DIRENT_D_INO gl_DIRENT_H gl_DIRENT_SAFER gl_MODULE_INDICATOR([dirent-safer]) gl_FUNC_DIRFD if test $ac_cv_func_dirfd = no && test $gl_cv_func_dirfd_macro = no \ || test $REPLACE_DIRFD = 1; then AC_LIBOBJ([dirfd]) gl_PREREQ_DIRFD fi gl_DIRENT_MODULE_INDICATOR([dirfd]) gl_DIRNAME gl_MODULE_INDICATOR([dirname]) gl_DIRNAME_LGPL gl_DOUBLE_SLASH_ROOT gl_FUNC_DUP2 if test $HAVE_DUP2 = 0 || test $REPLACE_DUP2 = 1; then AC_LIBOBJ([dup2]) gl_PREREQ_DUP2 fi gl_UNISTD_MODULE_INDICATOR([dup2]) gl_ENVIRON gl_UNISTD_MODULE_INDICATOR([environ]) gl_HEADER_ERRNO_H gl_ERROR if test $ac_cv_lib_error_at_line = no; then AC_LIBOBJ([error]) gl_PREREQ_ERROR fi m4_ifdef([AM_XGETTEXT_OPTION], [AM_][XGETTEXT_OPTION([--flag=error:3:c-format]) AM_][XGETTEXT_OPTION([--flag=error_at_line:5:c-format])]) gl_FUNC_EUIDACCESS if test $HAVE_EUIDACCESS = 0; then AC_LIBOBJ([euidaccess]) gl_PREREQ_EUIDACCESS fi gl_UNISTD_MODULE_INDICATOR([euidaccess]) AC_REQUIRE([gl_EXTERN_INLINE]) gl_FUNC_FACCESSAT if test $HAVE_FACCESSAT = 0 || test $REPLACE_FACCESSAT = 1; then AC_LIBOBJ([faccessat]) gl_PREREQ_FACCESSAT fi gl_MODULE_INDICATOR([faccessat]) gl_UNISTD_MODULE_INDICATOR([faccessat]) gl_FUNC_FCHDIR gl_UNISTD_MODULE_INDICATOR([fchdir]) gl_FUNC_FCHMODAT if test $HAVE_FCHMODAT = 0; then AC_LIBOBJ([fchmodat]) fi gl_MODULE_INDICATOR([fchmodat]) dnl for lib/openat.h gl_SYS_STAT_MODULE_INDICATOR([fchmodat]) gl_FUNC_FCHOWNAT if test $HAVE_FCHOWNAT = 0 || test $REPLACE_FCHOWNAT = 1; then AC_LIBOBJ([fchownat]) fi gl_MODULE_INDICATOR([fchownat]) dnl for lib/openat.h gl_UNISTD_MODULE_INDICATOR([fchownat]) gl_FUNC_FCNTL if test $HAVE_FCNTL = 0 || test $REPLACE_FCNTL = 1; then AC_LIBOBJ([fcntl]) fi gl_FCNTL_MODULE_INDICATOR([fcntl]) gl_FCNTL_H gl_MODULE_INDICATOR([fd-safer-flag]) gl_FILE_NAME_CONCAT_LGPL AC_C_FLEXIBLE_ARRAY_MEMBER gl_FLOAT_H if test $REPLACE_FLOAT_LDBL = 1; then AC_LIBOBJ([float]) fi if test $REPLACE_ITOLD = 1; then AC_LIBOBJ([itold]) fi gl_FUNC_FSTAT if test $REPLACE_FSTAT = 1; then AC_LIBOBJ([fstat]) case "$host_os" in mingw*) AC_LIBOBJ([stat-w32]) ;; esac gl_PREREQ_FSTAT fi gl_SYS_STAT_MODULE_INDICATOR([fstat]) gl_FUNC_FSTATAT if test $HAVE_FSTATAT = 0 || test $REPLACE_FSTATAT = 1; then AC_LIBOBJ([fstatat]) fi gl_SYS_STAT_MODULE_INDICATOR([fstatat]) gl_FUNC_GETCWD_LGPL if test $REPLACE_GETCWD = 1; then AC_LIBOBJ([getcwd-lgpl]) fi gl_UNISTD_MODULE_INDICATOR([getcwd]) gl_FUNC_GETDTABLESIZE if test $HAVE_GETDTABLESIZE = 0 || test $REPLACE_GETDTABLESIZE = 1; then AC_LIBOBJ([getdtablesize]) gl_PREREQ_GETDTABLESIZE fi gl_UNISTD_MODULE_INDICATOR([getdtablesize]) gl_FUNC_GETGROUPS if test $HAVE_GETGROUPS = 0 || test $REPLACE_GETGROUPS = 1; then AC_LIBOBJ([getgroups]) fi gl_UNISTD_MODULE_INDICATOR([getgroups]) gl_FUNC_GETOPT_GNU dnl Because of the way gl_FUNC_GETOPT_GNU is implemented (the gl_getopt_required dnl mechanism), there is no need to do any AC_LIBOBJ or AC_SUBST here; they are dnl done in the getopt-posix module. gl_FUNC_GETOPT_POSIX if test $REPLACE_GETOPT = 1; then AC_LIBOBJ([getopt]) AC_LIBOBJ([getopt1]) dnl Arrange for unistd.h to include getopt.h. GNULIB_GL_UNISTD_H_GETOPT=1 fi AC_SUBST([GNULIB_GL_UNISTD_H_GETOPT]) gl_FUNC_GETPROGNAME AC_SUBST([LIBINTL]) AC_SUBST([LTLIBINTL]) gl_GETTIME gl_FUNC_GETTIMEOFDAY if test $HAVE_GETTIMEOFDAY = 0 || test $REPLACE_GETTIMEOFDAY = 1; then AC_LIBOBJ([gettimeofday]) gl_PREREQ_GETTIMEOFDAY fi gl_SYS_TIME_MODULE_INDICATOR([gettimeofday]) # Autoconf 2.61a.99 and earlier don't support linking a file only # in VPATH builds. But since GNUmakefile is for maintainer use # only, it does not matter if we skip the link with older autoconf. # Automake 1.10.1 and earlier try to remove GNUmakefile in non-VPATH # builds, so use a shell variable to bypass this. GNUmakefile=GNUmakefile m4_if(m4_version_compare([2.61a.100], m4_defn([m4_PACKAGE_VERSION])), [1], [], [AC_CONFIG_LINKS([$GNUmakefile:$GNUmakefile], [], [GNUmakefile=$GNUmakefile])]) gl_FUNC_GROUP_MEMBER if test $HAVE_GROUP_MEMBER = 0; then AC_LIBOBJ([group-member]) gl_PREREQ_GROUP_MEMBER fi gl_UNISTD_MODULE_INDICATOR([group-member]) gl_HARD_LOCALE gl_INTTYPES_H gl_INTTYPES_INCOMPLETE AC_REQUIRE([gl_LARGEFILE]) gl_FUNC_LCHOWN if test $HAVE_LCHOWN = 0 || test $REPLACE_LCHOWN = 1; then AC_LIBOBJ([lchown]) fi gl_UNISTD_MODULE_INDICATOR([lchown]) gl_LIMITS_H gl_LOCALCHARSET LOCALCHARSET_TESTS_ENVIRONMENT="CHARSETALIASDIR=\"\$(abs_top_builddir)/$gl_source_base\"" AC_SUBST([LOCALCHARSET_TESTS_ENVIRONMENT]) AC_REQUIRE([gl_LOCALTIME_BUFFER_DEFAULTS]) AC_LIBOBJ([localtime-buffer]) gl_FUNC_LSTAT if test $REPLACE_LSTAT = 1; then AC_LIBOBJ([lstat]) gl_PREREQ_LSTAT fi gl_SYS_STAT_MODULE_INDICATOR([lstat]) AC_CONFIG_COMMANDS_PRE([m4_ifdef([AH_HEADER], [AC_SUBST([CONFIG_INCLUDE], m4_defn([AH_HEADER]))])]) AC_REQUIRE([AC_PROG_SED]) gl_FUNC_MALLOC_GNU if test $REPLACE_MALLOC = 1; then AC_LIBOBJ([malloc]) fi gl_MODULE_INDICATOR([malloc-gnu]) gl_FUNC_MALLOC_POSIX if test $REPLACE_MALLOC = 1; then AC_LIBOBJ([malloc]) fi gl_STDLIB_MODULE_INDICATOR([malloc-posix]) gl_MALLOCA gl_FUNC_MBRTOWC if test $HAVE_MBRTOWC = 0 || test $REPLACE_MBRTOWC = 1; then AC_LIBOBJ([mbrtowc]) gl_PREREQ_MBRTOWC fi gl_WCHAR_MODULE_INDICATOR([mbrtowc]) gl_FUNC_MBSINIT if test $HAVE_MBSINIT = 0 || test $REPLACE_MBSINIT = 1; then AC_LIBOBJ([mbsinit]) gl_PREREQ_MBSINIT fi gl_WCHAR_MODULE_INDICATOR([mbsinit]) 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_MEMPCPY if test $HAVE_MEMPCPY = 0; then AC_LIBOBJ([mempcpy]) gl_PREREQ_MEMPCPY fi gl_STRING_MODULE_INDICATOR([mempcpy]) gl_FUNC_MEMRCHR if test $ac_cv_func_memrchr = no; then AC_LIBOBJ([memrchr]) gl_PREREQ_MEMRCHR fi gl_STRING_MODULE_INDICATOR([memrchr]) gl_MINMAX gl_FUNC_MKDIR if test $REPLACE_MKDIR = 1; then AC_LIBOBJ([mkdir]) fi gl_FUNC_MKDIRAT if test $HAVE_MKDIRAT = 0; then AC_LIBOBJ([mkdirat]) gl_PREREQ_MKDIRAT fi gl_SYS_STAT_MODULE_INDICATOR([mkdirat]) gl_FUNC_MKTIME if test $REPLACE_MKTIME = 1; then AC_LIBOBJ([mktime]) gl_PREREQ_MKTIME fi gl_TIME_MODULE_INDICATOR([mktime]) gl_FUNC_MKTIME_INTERNAL if test $WANT_MKTIME_INTERNAL = 1; then AC_LIBOBJ([mktime]) gl_PREREQ_MKTIME fi 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_FUNC_GNU_STRFTIME gl_FUNC_OPEN if test $REPLACE_OPEN = 1; then AC_LIBOBJ([open]) gl_PREREQ_OPEN fi gl_FCNTL_MODULE_INDICATOR([open]) gl_FUNC_OPENAT if test $HAVE_OPENAT = 0 || test $REPLACE_OPENAT = 1; then AC_LIBOBJ([openat]) gl_PREREQ_OPENAT fi gl_MODULE_INDICATOR([openat]) dnl for lib/getcwd.c gl_FCNTL_MODULE_INDICATOR([openat]) gl_FUNC_OPENDIR if test $HAVE_OPENDIR = 0 || test $REPLACE_OPENDIR = 1; then AC_LIBOBJ([opendir]) fi gl_DIRENT_MODULE_INDICATOR([opendir]) gl_PARSE_DATETIME gl_PATHMAX AC_CHECK_DECLS([program_invocation_name], [], [], [#include ]) AC_CHECK_DECLS([program_invocation_short_name], [], [], [#include ]) gl_QUOTE gl_QUOTEARG 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_FUNC_READDIR if test $HAVE_READDIR = 0; then AC_LIBOBJ([readdir]) fi gl_DIRENT_MODULE_INDICATOR([readdir]) gl_FUNC_READLINK if test $HAVE_READLINK = 0 || test $REPLACE_READLINK = 1; then AC_LIBOBJ([readlink]) gl_PREREQ_READLINK fi gl_UNISTD_MODULE_INDICATOR([readlink]) gl_FUNC_READLINKAT if test $HAVE_READLINKAT = 0 || test $REPLACE_READLINKAT = 1; then AC_LIBOBJ([readlinkat]) fi gl_UNISTD_MODULE_INDICATOR([readlinkat]) gl_FUNC_REALLOC_GNU if test $REPLACE_REALLOC = 1; then AC_LIBOBJ([realloc]) fi gl_MODULE_INDICATOR([realloc-gnu]) gl_FUNC_REALLOC_POSIX if test $REPLACE_REALLOC = 1; then AC_LIBOBJ([realloc]) fi gl_STDLIB_MODULE_INDICATOR([realloc-posix]) gl_FUNC_RENAME if test $REPLACE_RENAME = 1; then AC_LIBOBJ([rename]) fi gl_STDIO_MODULE_INDICATOR([rename]) gl_FUNC_RENAMEAT if test $HAVE_RENAMEAT = 0 || test $REPLACE_RENAMEAT = 1; then AC_LIBOBJ([renameat]) fi if test $HAVE_RENAMEAT = 0; then AC_LIBOBJ([at-func2]) fi gl_STDIO_MODULE_INDICATOR([renameat]) gl_FUNC_RENAMEAT if test $HAVE_RENAMEAT = 0; then AC_LIBOBJ([at-func2]) fi gl_FUNC_RMDIR if test $REPLACE_RMDIR = 1; then AC_LIBOBJ([rmdir]) fi gl_UNISTD_MODULE_INDICATOR([rmdir]) gl_PREREQ_SAFE_WRITE gl_SAVE_CWD gl_FUNC_SETENV if test $HAVE_SETENV = 0 || test $REPLACE_SETENV = 1; then AC_LIBOBJ([setenv]) fi gl_STDLIB_MODULE_INDICATOR([setenv]) gl_SIGNAL_H gl_SIZE_MAX 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_MODULE_INDICATOR([statat]) dnl for lib/openat.h gl_STDARG_H AM_STDBOOL_H gl_STDDEF_H gl_STDINT_H gl_STDIO_H gl_STDLIB_H 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_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_HEADER_STRING_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_SYMLINK if test $HAVE_SYMLINK = 0 || test $REPLACE_SYMLINK = 1; then AC_LIBOBJ([symlink]) fi gl_UNISTD_MODULE_INDICATOR([symlink]) gl_FUNC_SYMLINKAT if test $HAVE_SYMLINKAT = 0 || test $REPLACE_SYMLINKAT = 1; then AC_LIBOBJ([symlinkat]) fi gl_UNISTD_MODULE_INDICATOR([symlinkat]) 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_FUNC_GEN_TEMPNAME 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_TIME_RZ if test $HAVE_TIMEZONE_T = 0; then AC_LIBOBJ([time_rz]) fi gl_TIME_MODULE_INDICATOR([time_rz]) gl_FUNC_TIMEGM if test $HAVE_TIMEGM = 0 || test $REPLACE_TIMEGM = 1; then AC_LIBOBJ([timegm]) gl_PREREQ_TIMEGM fi gl_TIME_MODULE_INDICATOR([timegm]) gl_TIMESPEC gl_FUNC_TZSET if test $HAVE_TZSET = 0 || test $REPLACE_TZSET = 1; then AC_LIBOBJ([tzset]) fi gl_TIME_MODULE_INDICATOR([tzset]) gl_UNISTD_H gl_UNISTD_SAFER gl_FUNC_UNLINK if test $REPLACE_UNLINK = 1; then AC_LIBOBJ([unlink]) fi gl_UNISTD_MODULE_INDICATOR([unlink]) gl_FUNC_UNLINKAT if test $HAVE_UNLINKAT = 0 || test $REPLACE_UNLINKAT = 1; then AC_LIBOBJ([unlinkat]) fi gl_UNISTD_MODULE_INDICATOR([unlinkat]) 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_FUNC_UTIME if test $HAVE_UTIME = 0 || test $REPLACE_UTIME = 1; then AC_LIBOBJ([utime]) gl_PREREQ_UTIME fi gl_UTIME_MODULE_INDICATOR([utime]) gl_UTIME_H gl_UTIMENS gl_FUNC_UTIMENSAT if test $HAVE_UTIMENSAT = 0 || test $REPLACE_UTIMENSAT = 1; then AC_LIBOBJ([utimensat]) fi gl_SYS_STAT_MODULE_INDICATOR([utimensat]) 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])]) m4_ifdef([AM_XGETTEXT_OPTION], [AM_][XGETTEXT_OPTION([--flag=verror:3:c-format]) AM_][XGETTEXT_OPTION([--flag=verror_at_line:5:c-format])]) gl_WCHAR_H gl_WCTYPE_H gl_FUNC_WRITE if test $REPLACE_WRITE = 1; then AC_LIBOBJ([write]) gl_PREREQ_WRITE fi gl_UNISTD_MODULE_INDICATOR([write]) gl_XALLOC AC_LIBOBJ([xmemdup0]) gl_XSIZE gl_XSTRNDUP gl_XVASPRINTF m4_ifdef([AM_XGETTEXT_OPTION], [AM_][XGETTEXT_OPTION([--flag=xasprintf:1:c-format])]) # End of code from modules m4_ifval(gl_LIBSOURCES_LIST, [ m4_syscmd([test ! -d ]m4_defn([gl_LIBSOURCES_DIR])[ || for gl_file in ]gl_LIBSOURCES_LIST[ ; do if test ! -r ]m4_defn([gl_LIBSOURCES_DIR])[/$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], [$gl_ltlibobjs]) ]) gltests_libdeps= gltests_ltlibdeps= m4_pushdef([AC_LIBOBJ], m4_defn([gltests_LIBOBJ])) m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gltests_REPLACE_FUNCS])) m4_pushdef([AC_LIBSOURCES], m4_defn([gltests_LIBSOURCES])) m4_pushdef([gltests_LIBSOURCES_LIST], []) m4_pushdef([gltests_LIBSOURCES_DIR], []) gl_COMMON gl_source_base='tests' changequote(,)dnl gltests_WITNESS=IN_`echo "${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], [$gl_module_indicator_condition]) m4_popdef([gl_MODULE_INDICATOR_CONDITION]) m4_ifval(gltests_LIBSOURCES_LIST, [ m4_syscmd([test ! -d ]m4_defn([gltests_LIBSOURCES_DIR])[ || for gl_file in ]gltests_LIBSOURCES_LIST[ ; do if test ! -r ]m4_defn([gltests_LIBSOURCES_DIR])[/$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], [$gltests_ltlibobjs]) ]) LIBPATCH_LIBDEPS="$gl_libdeps" AC_SUBST([LIBPATCH_LIBDEPS]) LIBPATCH_LTLIBDEPS="$gl_ltlibdeps" AC_SUBST([LIBPATCH_LTLIBDEPS]) ]) # 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], [lib]) 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], [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/git-version-gen build-aux/gitlog-to-changelog build-aux/gnupload build-aux/update-copyright build-aux/useless-if-before-free build-aux/vc-list-files doc/getdate.texi doc/parse-datetime.texi lib/_Noreturn.h lib/alloca.in.h lib/arg-nonnull.h lib/argmatch.c lib/argmatch.h lib/asnprintf.c lib/asprintf.c lib/assure.h lib/at-func.c lib/at-func2.c lib/backup-find.c lib/backup-internal.h lib/backupfile.c lib/backupfile.h lib/basename-lgpl.c lib/basename.c lib/bitrotate.c lib/bitrotate.h lib/c++defs.h lib/c-ctype.c lib/c-ctype.h lib/c-strcase.h lib/c-strcasecmp.c lib/c-strcaseeq.h lib/c-strncasecmp.c lib/canonicalize-lgpl.c lib/chdir-long.c lib/chdir-long.h lib/chmodat.c lib/chown.c lib/chownat.c lib/cloexec.c lib/cloexec.h lib/close.c lib/closedir.c lib/config.charset lib/diffseq.h lib/dirent--.h lib/dirent-private.h lib/dirent-safer.h lib/dirent.in.h lib/dirfd.c lib/dirname-lgpl.c lib/dirname.c lib/dirname.h lib/dosname.h lib/dup-safer-flag.c lib/dup-safer.c lib/dup2.c lib/errno.in.h lib/error.c lib/error.h lib/euidaccess.c lib/exitfail.c lib/exitfail.h lib/faccessat.c lib/fchdir.c lib/fchmodat.c lib/fchown-stub.c lib/fchownat.c lib/fcntl.c lib/fcntl.in.h lib/fd-hook.c lib/fd-hook.h lib/fd-safer-flag.c lib/fd-safer.c lib/filename.h lib/filenamecat-lgpl.c lib/filenamecat.h lib/flexmember.h lib/float+.h lib/float.c lib/float.in.h lib/fstat.c lib/fstatat.c lib/full-write.c lib/full-write.h lib/getcwd-lgpl.c lib/getdate.h lib/getdtablesize.c lib/getgroups.c lib/getopt-cdefs.in.h lib/getopt-core.h lib/getopt-ext.h lib/getopt-pfx-core.h lib/getopt-pfx-ext.h lib/getopt.c lib/getopt.in.h lib/getopt1.c lib/getopt_int.h lib/getprogname.c lib/getprogname.h lib/gettext.h lib/gettime.c lib/gettimeofday.c lib/gl_anylinked_list1.h lib/gl_anylinked_list2.h lib/gl_linked_list.c lib/gl_linked_list.h lib/gl_list.c lib/gl_list.h lib/gl_xlist.c lib/gl_xlist.h lib/group-member.c lib/hard-locale.c lib/hard-locale.h lib/hash.c lib/hash.h lib/ignore-value.h lib/intprops.h lib/inttypes.in.h lib/itold.c lib/lchown.c lib/limits.in.h lib/localcharset.c lib/localcharset.h lib/localtime-buffer.c lib/localtime-buffer.h lib/lstat.c lib/malloc.c lib/malloca.c lib/malloca.h lib/mbrtowc.c lib/mbsinit.c lib/memchr.c lib/memchr.valgrind lib/mempcpy.c lib/memrchr.c lib/minmax.h lib/mkdir.c lib/mkdirat.c lib/mktime-internal.h lib/mktime.c lib/msvc-inval.c lib/msvc-inval.h lib/msvc-nothrow.c lib/msvc-nothrow.h lib/nstrftime.c lib/open.c lib/openat-die.c lib/openat-priv.h lib/openat-proc.c lib/openat.c lib/openat.h lib/opendir-safer.c lib/opendir.c lib/parse-datetime.h lib/parse-datetime.y lib/pathmax.h lib/pipe-safer.c lib/printf-args.c lib/printf-args.h lib/printf-parse.c lib/printf-parse.h lib/progname.c lib/progname.h lib/quote.h lib/quotearg.c lib/quotearg.h lib/raise.c lib/readdir.c lib/readlink.c lib/readlinkat.c lib/realloc.c lib/ref-add.sin lib/ref-del.sin lib/rename.c lib/renameat.c lib/renameat2.c lib/renameat2.h lib/rmdir.c lib/root-uid.h lib/safe-read.c lib/safe-write.c lib/safe-write.h lib/same-inode.h lib/save-cwd.c lib/save-cwd.h lib/setenv.c lib/signal.in.h lib/size_max.h lib/stat-time.c lib/stat-time.h lib/stat-w32.c lib/stat-w32.h lib/stat.c lib/statat.c lib/stdarg.in.h lib/stdbool.in.h lib/stddef.in.h lib/stdint.in.h lib/stdio.in.h lib/stdlib.in.h lib/strdup.c lib/streq.h lib/strerror-override.c lib/strerror-override.h lib/strerror.c lib/strftime.h lib/string.in.h lib/stripslash.c lib/strndup.c lib/strnlen.c lib/symlink.c lib/symlinkat.c lib/sys_stat.in.h lib/sys_time.in.h lib/sys_types.in.h lib/tempname.c lib/tempname.h lib/time-internal.h lib/time.in.h lib/time_r.c lib/time_rz.c lib/timegm.c lib/timespec.c lib/timespec.h lib/tzset.c lib/unistd--.h lib/unistd-safer.h lib/unistd.c lib/unistd.in.h lib/unlink.c lib/unlinkat.c lib/unsetenv.c lib/utime.c lib/utime.in.h lib/utimens.c lib/utimens.h lib/utimensat.c lib/vasnprintf.c lib/vasnprintf.h lib/vasprintf.c lib/verify.h lib/verror.c lib/verror.h lib/warn-on-use.h lib/wchar.in.h lib/wctype-h.c lib/wctype.in.h lib/write.c lib/xalloc-die.c lib/xalloc-oversized.h lib/xalloc.h lib/xasprintf.c lib/xmalloc.c lib/xmemdup0.c lib/xmemdup0.h lib/xsize.c lib/xsize.h lib/xstrndup.c lib/xstrndup.h lib/xvasprintf.c lib/xvasprintf.h m4/00gnulib.m4 m4/absolute-header.m4 m4/alloca.m4 m4/backupfile.m4 m4/bison.m4 m4/canonicalize.m4 m4/chdir-long.m4 m4/chown.m4 m4/clock_time.m4 m4/close.m4 m4/closedir.m4 m4/codeset.m4 m4/configmake.m4 m4/d-ino.m4 m4/dirent-safer.m4 m4/dirent_h.m4 m4/dirfd.m4 m4/dirname.m4 m4/double-slash-root.m4 m4/dup2.m4 m4/eealloc.m4 m4/environ.m4 m4/errno_h.m4 m4/error.m4 m4/euidaccess.m4 m4/exponentd.m4 m4/extensions.m4 m4/extern-inline.m4 m4/faccessat.m4 m4/fchdir.m4 m4/fchmodat.m4 m4/fchownat.m4 m4/fcntl-o.m4 m4/fcntl.m4 m4/fcntl_h.m4 m4/filenamecat.m4 m4/flexmember.m4 m4/float_h.m4 m4/fstat.m4 m4/fstatat.m4 m4/getcwd.m4 m4/getdtablesize.m4 m4/getgroups.m4 m4/getopt.m4 m4/getprogname.m4 m4/gettime.m4 m4/gettimeofday.m4 m4/glibc21.m4 m4/gnulib-common.m4 m4/group-member.m4 m4/hard-locale.m4 m4/include_next.m4 m4/intmax_t.m4 m4/inttypes-pri.m4 m4/inttypes.m4 m4/inttypes_h.m4 m4/largefile.m4 m4/lchown.m4 m4/limits-h.m4 m4/localcharset.m4 m4/locale-fr.m4 m4/locale-ja.m4 m4/locale-zh.m4 m4/localtime-buffer.m4 m4/longlong.m4 m4/lstat.m4 m4/malloc.m4 m4/malloca.m4 m4/manywarnings-c++.m4 m4/manywarnings.m4 m4/math_h.m4 m4/mbrtowc.m4 m4/mbsinit.m4 m4/mbstate_t.m4 m4/memchr.m4 m4/mempcpy.m4 m4/memrchr.m4 m4/minmax.m4 m4/mkdir.m4 m4/mkdirat.m4 m4/mktime.m4 m4/mmap-anon.m4 m4/mode_t.m4 m4/msvc-inval.m4 m4/msvc-nothrow.m4 m4/multiarch.m4 m4/nocrash.m4 m4/nstrftime.m4 m4/off_t.m4 m4/open-cloexec.m4 m4/open.m4 m4/openat.m4 m4/opendir.m4 m4/parse-datetime.m4 m4/pathmax.m4 m4/printf.m4 m4/quote.m4 m4/quotearg.m4 m4/raise.m4 m4/readdir.m4 m4/readlink.m4 m4/readlinkat.m4 m4/realloc.m4 m4/rename.m4 m4/renameat.m4 m4/rmdir.m4 m4/safe-read.m4 m4/safe-write.m4 m4/save-cwd.m4 m4/setenv.m4 m4/signal_h.m4 m4/size_max.m4 m4/ssize_t.m4 m4/stat-time.m4 m4/stat.m4 m4/stdarg.m4 m4/stdbool.m4 m4/stddef_h.m4 m4/stdint.m4 m4/stdint_h.m4 m4/stdio_h.m4 m4/stdlib_h.m4 m4/strdup.m4 m4/strerror.m4 m4/string_h.m4 m4/strndup.m4 m4/strnlen.m4 m4/symlink.m4 m4/symlinkat.m4 m4/sys_socket_h.m4 m4/sys_stat_h.m4 m4/sys_time_h.m4 m4/sys_types_h.m4 m4/tempname.m4 m4/time_h.m4 m4/time_r.m4 m4/time_rz.m4 m4/timegm.m4 m4/timespec.m4 m4/tm_gmtoff.m4 m4/tzset.m4 m4/unistd-safer.m4 m4/unistd_h.m4 m4/unlink.m4 m4/unlinkat.m4 m4/utime.m4 m4/utime_h.m4 m4/utimens.m4 m4/utimensat.m4 m4/utimes.m4 m4/vasnprintf.m4 m4/vasprintf.m4 m4/warn-on-use.m4 m4/warnings.m4 m4/wchar_h.m4 m4/wchar_t.m4 m4/wctype_h.m4 m4/wint_t.m4 m4/write.m4 m4/xalloc.m4 m4/xsize.m4 m4/xstrndup.m4 m4/xvasprintf.m4 top/GNUmakefile top/maint.mk ]) # serial 14 # Copyright (C) 1999-2001, 2003-2007, 2009-2018 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 Written by Jim Meyering AC_DEFUN([gl_FUNC_GROUP_MEMBER], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) dnl Persuade glibc to declare group_member(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl Do this replacement check manually because I want the hyphen dnl (not the underscore) in the filename. AC_CHECK_FUNC([group_member], , [ HAVE_GROUP_MEMBER=0 ]) ]) # Prerequisites of lib/group-member.c. AC_DEFUN([gl_PREREQ_GROUP_MEMBER], [ AC_REQUIRE([AC_FUNC_GETGROUPS]) ]) # hard-locale.m4 serial 8 dnl Copyright (C) 2002-2006, 2009-2018 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 No prerequisites of lib/hard-locale.c. AC_DEFUN([gl_HARD_LOCALE], [ : ]) # include_next.m4 serial 24 dnl Copyright (C) 2006-2018 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 Derek Price. dnl Sets INCLUDE_NEXT, INCLUDE_NEXT_AS_FIRST_DIRECTIVE, PRAGMA_SYSTEM_HEADER, dnl and PRAGMA_COLUMNS. dnl dnl INCLUDE_NEXT expands to 'include_next' if the compiler supports it, or to dnl 'include' otherwise. dnl dnl INCLUDE_NEXT_AS_FIRST_DIRECTIVE expands to 'include_next' if the compiler dnl supports it in the special case that it is the first include directive in dnl the given file, or to 'include' otherwise. dnl dnl PRAGMA_SYSTEM_HEADER can be used in files that contain #include_next, dnl so as to avoid GCC warnings when the gcc option -pedantic is used. dnl '#pragma GCC system_header' has the same effect as if the file was found dnl through the include search path specified with '-isystem' options (as dnl opposed to the search path specified with '-I' options). Namely, gcc dnl does not warn about some things, and on some systems (Solaris and Interix) dnl __STDC__ evaluates to 0 instead of to 1. The latter is an undesired side dnl effect; we are therefore careful to use 'defined __STDC__' or '1' instead dnl of plain '__STDC__'. dnl dnl PRAGMA_COLUMNS can be used in files that override system header files, so dnl as to avoid compilation errors on HP NonStop systems when the gnulib file dnl is included by a system header file that does a "#pragma COLUMNS 80" (which dnl has the effect of truncating the lines of that file and all files that it dnl includes to 80 columns) and the gnulib file has lines longer than 80 dnl columns. AC_DEFUN([gl_INCLUDE_NEXT], [ AC_LANG_PREPROC_REQUIRE() AC_CACHE_CHECK([whether the preprocessor supports include_next], [gl_cv_have_include_next], [rm -rf conftestd1a conftestd1b conftestd2 mkdir conftestd1a conftestd1b conftestd2 dnl IBM C 9.0, 10.1 (original versions, prior to the 2009-01 updates) on dnl AIX 6.1 support include_next when used as first preprocessor directive dnl in a file, but not when preceded by another include directive. Check dnl for this bug by including . 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]) # intmax_t.m4 serial 8 dnl Copyright (C) 1997-2004, 2006-2007, 2009-2018 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_REQUIRE([AC_TYPE_LONG_LONG_INT]) test $ac_cv_type_long_long_int = yes \ && ac_type='long long' \ || ac_type='long' AC_DEFINE_UNQUOTED([intmax_t], [$ac_type], [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_REQUIRE([AC_TYPE_LONG_LONG_INT]) test $ac_cv_type_long_long_int = yes \ && ac_type='long long' \ || ac_type='long' AC_DEFINE_UNQUOTED([intmax_t], [$ac_type], [Define to long or long long if and don't define.]) fi ]) # inttypes-pri.m4 serial 7 (gettext-0.18.2) dnl Copyright (C) 1997-2002, 2006, 2008-2018 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 26 dnl Copyright (C) 2006-2018 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]) ]) # 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) #elif HAVE_LONG_LONG_INT #define CONDITION ($4) #else #define CONDITION 0 #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]) 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, 2008-2018 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 ]) # Enable large files on systems where this is not the default. # Copyright 1992-1996, 1998-2018 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 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], [$4]);; esac rm -rf conftest*[]dnl ])# _AC_SYS_LARGEFILE_MACRO_VALUE # AC_SYS_LARGEFILE # ---------------- # By default, many hosts won't let programs access large files; # one must use special compiler options to get large-file access to work. # For more details about this brain damage please see: # http://www.unix-systems.org/version2/whatsnew/lfs20mar.html AC_DEFUN([AC_SYS_LARGEFILE], [AC_ARG_ENABLE(largefile, [ --disable-largefile omit support for large files]) if test "$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 $ac_cv_sys_file_offset_bits = unknown; then _AC_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1, ac_cv_sys_large_files, [Define for large files, on AIX-style hosts.], [_AC_SYS_LARGEFILE_TEST_INCLUDES]) fi AC_DEFINE([_DARWIN_USE_64_BIT_INODE], [1], [Enable large inode numbers on Mac OS X 10.5.]) fi ])# AC_SYS_LARGEFILE ])# m4_version_prereq 2.70 # Enable large files on systems where this is implemented by Gnulib, not by the # system headers. # Set the variables WINDOWS_64_BIT_OFF_T, WINDOWS_64_BIT_ST_SIZE if Gnulib # overrides ensure that off_t or 'struct size.st_size' are 64-bit, respectively. AC_DEFUN([gl_LARGEFILE], [ AC_REQUIRE([AC_CANONICAL_HOST]) case "$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 ]) # serial 17 # Determine whether we need the lchown wrapper. dnl Copyright (C) 1998, 2001, 2003-2007, 2009-2018 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 Jim Meyering. dnl Provide lchown on systems that lack it, and work around bugs dnl on systems that have it. AC_DEFUN([gl_FUNC_LCHOWN], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_CHOWN]) AC_CHECK_FUNCS_ONCE([lchmod]) AC_CHECK_FUNCS([lchown]) if test $ac_cv_func_lchown = no; then HAVE_LCHOWN=0 else dnl Trailing slash and ctime bugs in chown also occur in lchown. case "$gl_cv_func_chown_slash_works" in *yes) ;; *) REPLACE_LCHOWN=1 ;; esac case "$gl_cv_func_chown_ctime_works" in *yes) ;; *) REPLACE_LCHOWN=1 ;; esac fi ]) dnl Check whether limits.h has needed features. dnl Copyright 2016-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert. AC_DEFUN_ONCE([gl_LIMITS_H], [ gl_CHECK_NEXT_HEADERS([limits.h]) AC_CACHE_CHECK([whether limits.h has ULLONG_WIDTH etc.], [gl_cv_header_limits_width], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__ #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 #endif #include int ullw = ULLONG_WIDTH;]])], [gl_cv_header_limits_width=yes], [gl_cv_header_limits_width=no])]) if test "$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"]) ]) # localcharset.m4 serial 7 dnl Copyright (C) 2002, 2004, 2006, 2009-2018 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_LOCALCHARSET], [ dnl Prerequisites of lib/localcharset.c. AC_REQUIRE([AM_LANGINFO_CODESET]) AC_REQUIRE([gl_FCNTL_O_FLAGS]) AC_CHECK_DECLS_ONCE([getc_unlocked]) dnl Prerequisites of the lib/Makefile.am snippet. AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_GLIBC21]) ]) # locale-fr.m4 serial 18 dnl Copyright (C) 2003, 2005-2018 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. 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 __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 the abbreviation of the second month, the second character (should be U+00E9: LATIN SMALL LETTER E WITH ACUTE) is only one byte long. This excludes the UTF-8 encoding. */ t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; if (strftime (buf, sizeof (buf), "%b", &t) < 3 || buf[2] != 'v') return 1; # 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; #endif } changequote([,])dnl ])]) if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then case "$host_os" in # Handle native Windows specially, because there setlocale() interprets # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", # "fr" or "fra" as "French" or "French_France.1252", # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", # "ja" as "Japanese" or "Japanese_Japan.932", # and similar. mingw*) # Test for the native Windows locale name. if (LC_ALL=French_France.1252 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr=French_France.1252 else # None found. gt_cv_locale_fr=none fi ;; *) # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the # configure script would override the LC_ALL setting. Likewise for # LC_CTYPE, which is also set at the beginning of the configure script. # Test for the usual locale name. if (LC_ALL=fr_FR LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr=fr_FR else # Test for the locale name with explicit encoding suffix. if (LC_ALL=fr_FR.ISO-8859-1 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr=fr_FR.ISO-8859-1 else # Test for the AIX, OSF/1, FreeBSD, NetBSD, OpenBSD locale name. if (LC_ALL=fr_FR.ISO8859-1 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr=fr_FR.ISO8859-1 else # Test for the HP-UX locale name. if (LC_ALL=fr_FR.iso88591 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr=fr_FR.iso88591 else # Test for the Solaris 7 locale name. if (LC_ALL=fr LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then gt_cv_locale_fr=fr else # None found. gt_cv_locale_fr=none fi fi fi fi fi ;; esac fi rm -fr conftest* ]) LOCALE_FR=$gt_cv_locale_fr AC_SUBST([LOCALE_FR]) ]) dnl Determine the name of a french locale with UTF-8 encoding. 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 __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 13 dnl Copyright (C) 2003, 2005-2018 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 __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-zh.m4 serial 13 dnl Copyright (C) 2003, 2005-2018 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 __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=$gt_cv_locale_zh_CN AC_SUBST([LOCALE_ZH_CN]) ]) # localtime-buffer.m4 serial 1 dnl Copyright (C) 2017-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_LOCALTIME_BUFFER_DEFAULTS], [ NEED_LOCALTIME_BUFFER=0 ]) dnl Macro invoked from other modules, to signal that the compilation of dnl module 'localtime-buffer' is needed. AC_DEFUN([gl_LOCALTIME_BUFFER_NEEDED], [ AC_REQUIRE([gl_LOCALTIME_BUFFER_DEFAULTS]) AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) NEED_LOCALTIME_BUFFER=1 REPLACE_GMTIME=1 REPLACE_LOCALTIME=1 ]) # longlong.m4 serial 17 dnl Copyright (C) 1999-2007, 2009-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Paul Eggert. # Define HAVE_LONG_LONG_INT if 'long long int' works. # This fixes a bug in Autoconf 2.61, and can be faster # than what's in Autoconf 2.62 through 2.68. # Note: If the type 'long long int' exists but is only 32 bits large # (as on some very old compilers), HAVE_LONG_LONG_INT will not be # defined. In this case you can treat 'long long int' like 'long int'. AC_DEFUN([AC_TYPE_LONG_LONG_INT], [ AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) AC_CACHE_CHECK([for long long int], [ac_cv_type_long_long_int], [ac_cv_type_long_long_int=yes if test "x${ac_cv_prog_cc_c99-no}" = xno; then ac_cv_type_long_long_int=$ac_cv_type_unsigned_long_long_int if test $ac_cv_type_long_long_int = yes; then dnl Catch a bug in Tandem NonStop Kernel (OSS) cc -O circa 2004. dnl If cross compiling, assume the bug is not important, since dnl nobody cross compiles for this platform as far as we know. AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[@%:@include @%:@ifndef LLONG_MAX @%:@ define HALF \ (1LL << (sizeof (long long int) * CHAR_BIT - 2)) @%:@ define LLONG_MAX (HALF - 1 + HALF) @%:@endif]], [[long long int n = 1; int i; for (i = 0; ; i++) { long long int m = n << i; if (m >> i != n) return 1; if (LLONG_MAX / 2 < m) break; } return 0;]])], [], [ac_cv_type_long_long_int=no], [:]) fi fi]) if test $ac_cv_type_long_long_int = yes; then AC_DEFINE([HAVE_LONG_LONG_INT], [1], [Define to 1 if the system has the type 'long long int'.]) fi ]) # Define HAVE_UNSIGNED_LONG_LONG_INT if 'unsigned long long int' works. # This fixes a bug in Autoconf 2.61, and can be faster # than what's in Autoconf 2.62 through 2.68. # Note: If the type 'unsigned long long int' exists but is only 32 bits # large (as on some very old compilers), AC_TYPE_UNSIGNED_LONG_LONG_INT # will not be defined. In this case you can treat 'unsigned long long int' # like 'unsigned long int'. AC_DEFUN([AC_TYPE_UNSIGNED_LONG_LONG_INT], [ AC_CACHE_CHECK([for unsigned long long int], [ac_cv_type_unsigned_long_long_int], [ac_cv_type_unsigned_long_long_int=yes if test "x${ac_cv_prog_cc_c99-no}" = xno; then AC_LINK_IFELSE( [_AC_TYPE_LONG_LONG_SNIPPET], [], [ac_cv_type_unsigned_long_long_int=no]) fi]) if test $ac_cv_type_unsigned_long_long_int = yes; then AC_DEFINE([HAVE_UNSIGNED_LONG_LONG_INT], [1], [Define to 1 if the system has the type 'unsigned long long int'.]) fi ]) # Expands to a C program that can be used to test for simultaneous support # of 'long long' and 'unsigned long long'. We don't want to say that # 'long long' is available if 'unsigned long long' is not, or vice versa, # because too many programs rely on the symmetry between signed and unsigned # integer types (excluding 'bool'). AC_DEFUN([_AC_TYPE_LONG_LONG_SNIPPET], [ AC_LANG_PROGRAM( [[/* For now, do not test the preprocessor; as of 2007 there are too many implementations with broken preprocessors. Perhaps this can be revisited in 2012. In the meantime, code should not expect #if to work with literals wider than 32 bits. */ /* Test literals. */ long long int ll = 9223372036854775807ll; long long int nll = -9223372036854775807LL; unsigned long long int ull = 18446744073709551615ULL; /* Test constant expressions. */ typedef int a[((-9223372036854775807LL < 0 && 0 < 9223372036854775807ll) ? 1 : -1)]; typedef int b[(18446744073709551615ULL <= (unsigned long long int) -1 ? 1 : -1)]; int i = 63;]], [[/* Test availability of runtime routines for shift and division. */ long long int llmax = 9223372036854775807ll; unsigned long long int ullmax = 18446744073709551615ull; return ((ll << 63) | (ll >> 63) | (ll < i) | (ll > i) | (llmax / ll) | (llmax % ll) | (ull << 63) | (ull >> 63) | (ull << i) | (ull >> i) | (ullmax / ull) | (ullmax % ull));]]) ]) # serial 31 # Copyright (C) 1997-2001, 2003-2018 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 "$host_os" in *-gnu* | gnu*) # Guess yes on glibc systems. gl_cv_func_lstat_dereferences_slashed_symlink="guessing yes" ;; mingw*) # Guess no on native Windows. gl_cv_func_lstat_dereferences_slashed_symlink="guessing no" ;; *) # If we don't know, assume the worst. gl_cv_func_lstat_dereferences_slashed_symlink="guessing no" ;; esac ]) rm -f conftest.sym conftest.file ]) case "$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 ]) # malloc.m4 serial 16 dnl Copyright (C) 2007, 2009-2018 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. m4_version_prereq([2.70], [] ,[ # This is adapted with modifications from upstream Autoconf here: # https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c AC_DEFUN([_AC_FUNC_MALLOC_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 malloc], [ac_cv_func_malloc_0_nonnull], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#if defined STDC_HEADERS || defined HAVE_STDLIB_H # include #else char *malloc (); #endif ]], [[char *p = malloc (0); int result = !p; free (p); return result;]]) ], [ac_cv_func_malloc_0_nonnull=yes], [ac_cv_func_malloc_0_nonnull=no], [case "$host_os" in # Guess yes on platforms where we know the result. *-gnu* | gnu* | freebsd* | netbsd* | openbsd* \ | hpux* | solaris* | cygwin* | mingw*) ac_cv_func_malloc_0_nonnull=yes ;; # If we don't know, assume the worst. *) ac_cv_func_malloc_0_nonnull=no ;; esac ]) ]) AS_IF([test $ac_cv_func_malloc_0_nonnull = yes], [$1], [$2]) ])# _AC_FUNC_MALLOC_IF ]) # gl_FUNC_MALLOC_GNU # ------------------ # Test whether 'malloc (0)' is handled like in GNU libc, and replace malloc if # it is not. AC_DEFUN([gl_FUNC_MALLOC_GNU], [ AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) dnl _AC_FUNC_MALLOC_IF is defined in Autoconf. _AC_FUNC_MALLOC_IF( [AC_DEFINE([HAVE_MALLOC_GNU], [1], [Define to 1 if your system has a GNU libc compatible 'malloc' function, and to 0 otherwise.])], [AC_DEFINE([HAVE_MALLOC_GNU], [0]) REPLACE_MALLOC=1 ]) ]) # gl_FUNC_MALLOC_POSIX # -------------------- # Test whether 'malloc' is POSIX compliant (sets errno to ENOMEM when it # fails), and replace malloc if it is not. AC_DEFUN([gl_FUNC_MALLOC_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_MALLOC_POSIX], [1], [Define if the 'malloc' function is POSIX compliant.]) else REPLACE_MALLOC=1 fi ]) # Test whether malloc, realloc, calloc are POSIX compliant, # Set gl_cv_func_malloc_posix to yes or no accordingly. AC_DEFUN([gl_CHECK_MALLOC_POSIX], [ AC_CACHE_CHECK([whether malloc, realloc, calloc are POSIX compliant], [gl_cv_func_malloc_posix], [ dnl It is too dangerous to try to allocate a large amount of memory: dnl some systems go to their knees when you do that. So assume that dnl all Unix implementations of the function are POSIX compliant. AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[]], [[#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ choke me #endif ]])], [gl_cv_func_malloc_posix=yes], [gl_cv_func_malloc_posix=no]) ]) ]) # malloca.m4 serial 1 dnl Copyright (C) 2003-2004, 2006-2007, 2009-2018 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_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]) AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) ]) # manywarnings.m4 serial 13 dnl Copyright (C) 2008-2018 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. AC_DEFUN([gl_MANYWARN_COMPLEMENT], [ gl_warn_set= set x $2; shift for gl_warn_item do case " $3 " in *" $gl_warn_item "*) ;; *) gl_warn_set="$gl_warn_set $gl_warn_item" ;; esac done $1=$gl_warn_set ]) # gl_MANYWARN_ALL_GCC(VARIABLE) # ----------------------------- # Add all documented GCC warning parameters to variable VARIABLE. # Note that you need to test them using gl_WARN_ADD if you want to # make sure your gcc understands it. # # The effects of this macro depend on the current language (_AC_LANG). AC_DEFUN([gl_MANYWARN_ALL_GCC], [_AC_LANG_DISPATCH([$0], _AC_LANG, $@)]) # Specialization for _AC_LANG = C. # Use of m4_defun rather than AC_DEFUN works around a bug in autoconf < 2.63b. m4_defun([gl_MANYWARN_ALL_GCC(C)], [ AC_LANG_PUSH([C]) dnl First, check for some issues that only occur when combining multiple dnl gcc warning categories. AC_REQUIRE([AC_PROG_CC]) if test -n "$GCC"; then dnl Check if -W -Werror -Wno-missing-field-initializers is supported dnl with the current $CC $CFLAGS $CPPFLAGS. AC_MSG_CHECKING([whether -Wno-missing-field-initializers is supported]) AC_CACHE_VAL([gl_cv_cc_nomfi_supported], [ gl_save_CFLAGS="$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"]) AC_MSG_RESULT([$gl_cv_cc_nomfi_supported]) if test "$gl_cv_cc_nomfi_supported" = yes; then dnl Now check whether -Wno-missing-field-initializers is needed dnl for the { 0, } construct. AC_MSG_CHECKING([whether -Wno-missing-field-initializers is needed]) AC_CACHE_VAL([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="$gl_save_CFLAGS" ]) AC_MSG_RESULT([$gl_cv_cc_nomfi_needed]) fi dnl Next, check if -Werror -Wuninitialized is useful with the dnl user's choice of $CFLAGS; some versions of gcc warn that it dnl has no effect if -O is not also used AC_MSG_CHECKING([whether -Wuninitialized is supported]) AC_CACHE_VAL([gl_cv_cc_uninitialized_supported], [ gl_save_CFLAGS="$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"]) AC_MSG_RESULT([$gl_cv_cc_uninitialized_supported]) 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 | sort) \ # <(gcc --help=warnings | sed -n 's/^ \(-[^ ]*\) .*/\1/p' | sort | # grep -v -x -F -f <( # awk '/^[^#]/ {print $1}' ../build-aux/gcc-warning.spec)) gl_manywarn_set= for gl_manywarn_item in -fno-common \ -W \ -Wabi \ -Waddress \ -Waggressive-loop-optimizations \ -Wall \ -Wattributes \ -Wbad-function-cast \ -Wbool-compare \ -Wbool-operation \ -Wbuiltin-declaration-mismatch \ -Wbuiltin-macro-redefined \ -Wcast-align \ -Wchar-subscripts \ -Wchkp \ -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 \ -Wexpansion-to-defined \ -Wextra \ -Wformat-contains-nul \ -Wformat-extra-args \ -Wformat-nonliteral \ -Wformat-security \ -Wformat-signedness \ -Wformat-y2k \ -Wformat-zero-length \ -Wframe-address \ -Wfree-nonheap-object \ -Whsa \ -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 \ -Wjump-misses-init \ -Wlogical-not-parentheses \ -Wlogical-op \ -Wmain \ -Wmaybe-uninitialized \ -Wmemset-elt-size \ -Wmemset-transposed-args \ -Wmisleading-indentation \ -Wmissing-braces \ -Wmissing-declarations \ -Wmissing-field-initializers \ -Wmissing-include-dirs \ -Wmissing-parameter-type \ -Wmissing-prototypes \ -Wmultichar \ -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 \ -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-memaccess \ -Wstack-protector \ -Wstrict-aliasing \ -Wstrict-overflow \ -Wstrict-prototypes \ -Wsuggest-attribute=const \ -Wsuggest-attribute=format \ -Wsuggest-attribute=noreturn \ -Wsuggest-attribute=pure \ -Wsuggest-final-methods \ -Wsuggest-final-types \ -Wswitch \ -Wswitch-bool \ -Wswitch-default \ -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 \ \ ; 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 -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]) ]) # mbrtowc.m4 serial 30 -*- coding: utf-8 -*- dnl Copyright (C) 2001-2002, 2004-2005, 2008-2018 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_MBRTOWC], [ AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) AC_REQUIRE([AC_TYPE_MBSTATE_T]) gl_MBSTATE_T_BROKEN AC_CHECK_FUNCS_ONCE([mbrtowc]) if test $ac_cv_func_mbrtowc = no; then HAVE_MBRTOWC=0 AC_CHECK_DECLS([mbrtowc],,, [[ /* 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 ]]) if test $ac_cv_have_decl_mbrtowc = yes; then dnl On Minix 3.1.8, the system's declares mbrtowc() although dnl it does not have the function. Avoid a collision with gnulib's dnl replacement. REPLACE_MBRTOWC=1 fi else if test $REPLACE_MBSTATE_T = 1; then REPLACE_MBRTOWC=1 else gl_MBRTOWC_NULL_ARG1 gl_MBRTOWC_NULL_ARG2 gl_MBRTOWC_RETVAL gl_MBRTOWC_NUL_RETVAL gl_MBRTOWC_EMPTY_INPUT gl_MBRTOWC_C_LOCALE case "$gl_cv_func_mbrtowc_null_arg1" in *yes) ;; *) AC_DEFINE([MBRTOWC_NULL_ARG1_BUG], [1], [Define if the mbrtowc function has the NULL pwc argument bug.]) REPLACE_MBRTOWC=1 ;; esac case "$gl_cv_func_mbrtowc_null_arg2" in *yes) ;; *) AC_DEFINE([MBRTOWC_NULL_ARG2_BUG], [1], [Define if the mbrtowc function has the NULL string argument bug.]) REPLACE_MBRTOWC=1 ;; esac case "$gl_cv_func_mbrtowc_retval" in *yes) ;; *) AC_DEFINE([MBRTOWC_RETVAL_BUG], [1], [Define if the mbrtowc function returns a wrong return value.]) REPLACE_MBRTOWC=1 ;; esac case "$gl_cv_func_mbrtowc_nul_retval" in *yes) ;; *) AC_DEFINE([MBRTOWC_NUL_RETVAL_BUG], [1], [Define if the mbrtowc function does not return 0 for a NUL character.]) REPLACE_MBRTOWC=1 ;; esac case "$gl_cv_func_mbrtowc_empty_input" in *yes) ;; *) AC_DEFINE([MBRTOWC_EMPTY_INPUT_BUG], [1], [Define if the mbrtowc function does not return (size_t) -2 for empty input.]) REPLACE_MBRTOWC=1 ;; esac case $gl_cv_C_locale_sans_EILSEQ in *yes) ;; *) AC_DEFINE([C_LOCALE_MAYBE_EILSEQ], [1], [Define to 1 if the C locale may have encoding errors.]) REPLACE_MBRTOWC=1 ;; esac fi fi ]) dnl Test whether mbsinit() and mbrtowc() need to be overridden in a way that dnl redefines the semantics of the given mbstate_t type. dnl Result is REPLACE_MBSTATE_T. dnl When this is set to 1, we replace both mbsinit() and mbrtowc(), in order to dnl avoid inconsistencies. AC_DEFUN([gl_MBSTATE_T_BROKEN], [ AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) AC_REQUIRE([AC_TYPE_MBSTATE_T]) AC_CHECK_FUNCS_ONCE([mbsinit]) AC_CHECK_FUNCS_ONCE([mbrtowc]) if test $ac_cv_func_mbsinit = yes && test $ac_cv_func_mbrtowc = yes; then gl_MBRTOWC_INCOMPLETE_STATE gl_MBRTOWC_SANITYCHECK REPLACE_MBSTATE_T=0 case "$gl_cv_func_mbrtowc_incomplete_state" in *yes) ;; *) REPLACE_MBSTATE_T=1 ;; esac case "$gl_cv_func_mbrtowc_sanitycheck" in *yes) ;; *) REPLACE_MBSTATE_T=1 ;; esac else REPLACE_MBSTATE_T=1 fi ]) dnl Test whether mbrtowc puts the state into non-initial state when parsing an dnl incomplete multibyte character. dnl Result is gl_cv_func_mbrtowc_incomplete_state. AC_DEFUN([gl_MBRTOWC_INCOMPLETE_STATE], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gt_LOCALE_JA]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether mbrtowc handles incomplete characters], [gl_cv_func_mbrtowc_incomplete_state], [ dnl Initial guess, used when cross-compiling or when no suitable locale dnl is present. changequote(,)dnl case "$host_os" in # Guess no on AIX and OSF/1. aix* | osf*) gl_cv_func_mbrtowc_incomplete_state="guessing no" ;; # Guess yes otherwise. *) gl_cv_func_mbrtowc_incomplete_state="guessing yes" ;; esac changequote([,])dnl if test $LOCALE_JA != none; then AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include int main () { if (setlocale (LC_ALL, "$LOCALE_JA") != NULL) { const char input[] = "B\217\253\344\217\251\316er"; /* "Büßer" */ mbstate_t state; wchar_t wc; memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, input + 1, 1, &state) == (size_t)(-2)) if (mbsinit (&state)) return 2; } return 0; }]])], [gl_cv_func_mbrtowc_incomplete_state=yes], [gl_cv_func_mbrtowc_incomplete_state=no], [:]) fi ]) ]) dnl Test whether mbrtowc works not worse than mbtowc. dnl Result is gl_cv_func_mbrtowc_sanitycheck. AC_DEFUN([gl_MBRTOWC_SANITYCHECK], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gt_LOCALE_ZH_CN]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether mbrtowc works as well as mbtowc], [gl_cv_func_mbrtowc_sanitycheck], [ dnl Initial guess, used when cross-compiling or when no suitable locale dnl is present. changequote(,)dnl case "$host_os" in # Guess no on Solaris 8. solaris2.8) gl_cv_func_mbrtowc_sanitycheck="guessing no" ;; # Guess yes otherwise. *) gl_cv_func_mbrtowc_sanitycheck="guessing yes" ;; esac changequote([,])dnl if test $LOCALE_ZH_CN != none; then AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include int main () { /* This fails on Solaris 8: mbrtowc returns 2, and sets wc to 0x00F0. mbtowc returns 4 (correct) and sets wc to 0x5EDC. */ if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL) { char input[] = "B\250\271\201\060\211\070er"; /* "Büßer" */ mbstate_t state; wchar_t wc; memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, input + 3, 6, &state) != 4 && mbtowc (&wc, input + 3, 6) == 4) return 2; } return 0; }]])], [gl_cv_func_mbrtowc_sanitycheck=yes], [gl_cv_func_mbrtowc_sanitycheck=no], [:]) fi ]) ]) dnl Test whether mbrtowc supports a NULL pwc argument correctly. dnl Result is gl_cv_func_mbrtowc_null_arg1. AC_DEFUN([gl_MBRTOWC_NULL_ARG1], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gt_LOCALE_FR_UTF8]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether mbrtowc handles a NULL pwc argument], [gl_cv_func_mbrtowc_null_arg1], [ dnl Initial guess, used when cross-compiling or when no suitable locale dnl is present. changequote(,)dnl case "$host_os" in # Guess no on Solaris. solaris*) gl_cv_func_mbrtowc_null_arg1="guessing no" ;; # Guess yes otherwise. *) gl_cv_func_mbrtowc_null_arg1="guessing yes" ;; esac changequote([,])dnl if test $LOCALE_FR_UTF8 != none; then AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include #include /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include int main () { int result = 0; if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) { char input[] = "\303\237er"; mbstate_t state; wchar_t wc; size_t ret; memset (&state, '\0', sizeof (mbstate_t)); wc = (wchar_t) 0xBADFACE; ret = mbrtowc (&wc, input, 5, &state); if (ret != 2) result |= 1; if (!mbsinit (&state)) result |= 2; memset (&state, '\0', sizeof (mbstate_t)); ret = mbrtowc (NULL, input, 5, &state); if (ret != 2) /* Solaris 7 fails here: ret is -1. */ result |= 4; if (!mbsinit (&state)) result |= 8; } return result; }]])], [gl_cv_func_mbrtowc_null_arg1=yes], [gl_cv_func_mbrtowc_null_arg1=no], [:]) fi ]) ]) dnl Test whether mbrtowc supports a NULL string argument correctly. dnl Result is gl_cv_func_mbrtowc_null_arg2. AC_DEFUN([gl_MBRTOWC_NULL_ARG2], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gt_LOCALE_FR_UTF8]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether mbrtowc handles a NULL string argument], [gl_cv_func_mbrtowc_null_arg2], [ dnl Initial guess, used when cross-compiling or when no suitable locale dnl is present. changequote(,)dnl case "$host_os" in # Guess no on OSF/1. osf*) gl_cv_func_mbrtowc_null_arg2="guessing no" ;; # Guess yes otherwise. *) gl_cv_func_mbrtowc_null_arg2="guessing yes" ;; esac changequote([,])dnl if test $LOCALE_FR_UTF8 != none; then AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include int main () { if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) { mbstate_t state; wchar_t wc; int ret; memset (&state, '\0', sizeof (mbstate_t)); wc = (wchar_t) 0xBADFACE; mbrtowc (&wc, NULL, 5, &state); /* Check that wc was not modified. */ if (wc != (wchar_t) 0xBADFACE) return 2; } return 0; }]])], [gl_cv_func_mbrtowc_null_arg2=yes], [gl_cv_func_mbrtowc_null_arg2=no], [:]) fi ]) ]) dnl Test whether mbrtowc, when parsing the end of a multibyte character, dnl correctly returns the number of bytes that were needed to complete the dnl character (not the total number of bytes of the multibyte character). dnl Result is gl_cv_func_mbrtowc_retval. AC_DEFUN([gl_MBRTOWC_RETVAL], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gt_LOCALE_FR_UTF8]) AC_REQUIRE([gt_LOCALE_JA]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CACHE_CHECK([whether mbrtowc has a correct return value], [gl_cv_func_mbrtowc_retval], [ dnl Initial guess, used when cross-compiling or when no suitable locale dnl is present. changequote(,)dnl case "$host_os" in # Guess no on HP-UX, Solaris, native Windows. hpux* | solaris* | mingw*) gl_cv_func_mbrtowc_retval="guessing no" ;; # Guess yes otherwise. *) gl_cv_func_mbrtowc_retval="guessing yes" ;; esac changequote([,])dnl if test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none \ || { case "$host_os" in mingw*) true;; *) false;; esac; }; then AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include /* 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 main () { int result = 0; int found_some_locale = 0; /* This fails on Solaris. */ if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) { char input[] = "B\303\274\303\237er"; /* "Büßer" */ mbstate_t state; wchar_t wc; memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, input + 1, 1, &state) == (size_t)(-2)) { input[1] = '\0'; if (mbrtowc (&wc, input + 2, 5, &state) != 1) result |= 1; } found_some_locale = 1; } /* This fails on HP-UX 11.11. */ if (setlocale (LC_ALL, "$LOCALE_JA") != NULL) { char input[] = "B\217\253\344\217\251\316er"; /* "Büßer" */ mbstate_t state; wchar_t wc; memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, input + 1, 1, &state) == (size_t)(-2)) { input[1] = '\0'; if (mbrtowc (&wc, input + 2, 5, &state) != 2) result |= 2; } found_some_locale = 1; } /* This fails on native Windows. */ if (setlocale (LC_ALL, "Japanese_Japan.932") != NULL) { char input[] = "<\223\372\226\173\214\352>"; /* "<日本語>" */ mbstate_t state; wchar_t wc; memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, input + 3, 1, &state) == (size_t)(-2)) { input[3] = '\0'; if (mbrtowc (&wc, input + 4, 4, &state) != 1) result |= 4; } found_some_locale = 1; } if (setlocale (LC_ALL, "Chinese_Taiwan.950") != NULL) { char input[] = "<\244\351\245\273\273\171>"; /* "<日本語>" */ mbstate_t state; wchar_t wc; memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, input + 3, 1, &state) == (size_t)(-2)) { input[3] = '\0'; if (mbrtowc (&wc, input + 4, 4, &state) != 1) result |= 8; } found_some_locale = 1; } if (setlocale (LC_ALL, "Chinese_China.936") != NULL) { char input[] = "<\310\325\261\276\325\132>"; /* "<日本語>" */ mbstate_t state; wchar_t wc; memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, input + 3, 1, &state) == (size_t)(-2)) { input[3] = '\0'; if (mbrtowc (&wc, input + 4, 4, &state) != 1) result |= 16; } found_some_locale = 1; } return (found_some_locale ? result : 77); }]])], [gl_cv_func_mbrtowc_retval=yes], [if test $? != 77; then gl_cv_func_mbrtowc_retval=no fi ], [:]) fi ]) ]) dnl Test whether mbrtowc, when parsing a NUL character, correctly returns 0. dnl Result is gl_cv_func_mbrtowc_nul_retval. AC_DEFUN([gl_MBRTOWC_NUL_RETVAL], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gt_LOCALE_ZH_CN]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether mbrtowc returns 0 when parsing a NUL character], [gl_cv_func_mbrtowc_nul_retval], [ dnl Initial guess, used when cross-compiling or when no suitable locale dnl is present. changequote(,)dnl case "$host_os" in # Guess no on Solaris 8 and 9. solaris2.[89]) gl_cv_func_mbrtowc_nul_retval="guessing no" ;; # Guess yes otherwise. *) gl_cv_func_mbrtowc_nul_retval="guessing yes" ;; esac changequote([,])dnl if test $LOCALE_ZH_CN != none; then AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include int main () { /* This fails on Solaris 8 and 9. */ if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL) { mbstate_t state; wchar_t wc; memset (&state, '\0', sizeof (mbstate_t)); if (mbrtowc (&wc, "", 1, &state) != 0) return 2; } return 0; }]])], [gl_cv_func_mbrtowc_nul_retval=yes], [gl_cv_func_mbrtowc_nul_retval=no], [:]) fi ]) ]) dnl Test whether mbrtowc returns the correct value on empty input. AC_DEFUN([gl_MBRTOWC_EMPTY_INPUT], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether mbrtowc works on empty input], [gl_cv_func_mbrtowc_empty_input], [ dnl Initial guess, used when cross-compiling or when no suitable locale dnl is present. changequote(,)dnl case "$host_os" in # Guess no on AIX and glibc systems. aix* | *-gnu* | gnu*) gl_cv_func_mbrtowc_empty_input="guessing no" ;; # Guess yes on native Windows. mingw*) gl_cv_func_mbrtowc_empty_input="guessing yes" ;; *) gl_cv_func_mbrtowc_empty_input="guessing yes" ;; esac changequote([,])dnl AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include static wchar_t wc; static mbstate_t mbs; int main (void) { return mbrtowc (&wc, "", 0, &mbs) != (size_t) -2; }]])], [gl_cv_func_mbrtowc_empty_input=yes], [gl_cv_func_mbrtowc_empty_input=no], [:]) ]) ]) dnl Test whether mbrtowc reports encoding errors in the C locale. dnl Although POSIX was never intended to allow this, the GNU C Library dnl and other implementations do it. See: dnl https://sourceware.org/bugzilla/show_bug.cgi?id=19932 AC_DEFUN([gl_MBRTOWC_C_LOCALE], [ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether the C locale is free of encoding errors], [gl_cv_C_locale_sans_EILSEQ], [ dnl Initial guess, used when cross-compiling or when no suitable locale dnl is present. gl_cv_C_locale_sans_EILSEQ="guessing no" AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include #include ]], [[ int i; char *locale = setlocale (LC_ALL, "C"); if (! locale) return 2; for (i = CHAR_MIN; i <= CHAR_MAX; i++) { char c = i; wchar_t wc; mbstate_t mbs = { 0, }; size_t ss = mbrtowc (&wc, &c, 1, &mbs); if (1 < ss) return 3; } return 0; ]])], [gl_cv_C_locale_sans_EILSEQ=yes], [gl_cv_C_locale_sans_EILSEQ=no], [case "$host_os" in # Guess yes on native Windows. mingw*) gl_cv_C_locale_sans_EILSEQ="guessing yes" ;; esac ]) ]) ]) # Prerequisites of lib/mbrtowc.c. AC_DEFUN([gl_PREREQ_MBRTOWC], [ : ]) dnl From Paul Eggert dnl This is an override of an autoconf macro. AC_DEFUN([AC_FUNC_MBRTOWC], [ dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60. AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared], [gl_cv_func_mbrtowc], [AC_LINK_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 ]], [[wchar_t wc; char const s[] = ""; size_t n = 1; mbstate_t state; return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));]])], [gl_cv_func_mbrtowc=yes], [gl_cv_func_mbrtowc=no])]) if test $gl_cv_func_mbrtowc = yes; then AC_DEFINE([HAVE_MBRTOWC], [1], [Define to 1 if mbrtowc and mbstate_t are properly declared.]) fi ]) # mbsinit.m4 serial 8 dnl Copyright (C) 2008, 2010-2018 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_MBSINIT], [ AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([AC_TYPE_MBSTATE_T]) gl_MBSTATE_T_BROKEN AC_CHECK_FUNCS_ONCE([mbsinit]) if test $ac_cv_func_mbsinit = no; then HAVE_MBSINIT=0 AC_CHECK_DECLS([mbsinit],,, [[ /* 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 ]]) if test $ac_cv_have_decl_mbsinit = yes; then dnl On Minix 3.1.8, the system's declares mbsinit() although dnl it does not have the function. Avoid a collision with gnulib's dnl replacement. REPLACE_MBSINIT=1 fi else if test $REPLACE_MBSTATE_T = 1; then REPLACE_MBSINIT=1 else dnl On mingw, mbsinit() always returns 1, which is inappropriate for dnl states produced by mbrtowc() for an incomplete multibyte character dnl in multibyte locales. case "$host_os" in mingw*) REPLACE_MBSINIT=1 ;; esac fi fi ]) # Prerequisites of lib/mbsinit.c. AC_DEFUN([gl_PREREQ_MBSINIT], [ : ]) # mbstate_t.m4 serial 13 dnl Copyright (C) 2000-2002, 2008-2018 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. # From Paul Eggert. # BeOS 5 has but does not define mbstate_t, # so you can't declare an object of that type. # Check for this incompatibility with Standard C. # AC_TYPE_MBSTATE_T # ----------------- AC_DEFUN([AC_TYPE_MBSTATE_T], [ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl for HP-UX 11.11 AC_CACHE_CHECK([for mbstate_t], [ac_cv_type_mbstate_t], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [AC_INCLUDES_DEFAULT[ /* 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 ]], [[mbstate_t x; return sizeof x;]])], [ac_cv_type_mbstate_t=yes], [ac_cv_type_mbstate_t=no])]) if test $ac_cv_type_mbstate_t = yes; then AC_DEFINE([HAVE_MBSTATE_T], [1], [Define to 1 if declares mbstate_t.]) else AC_DEFINE([mbstate_t], [int], [Define to a type if does not define.]) fi ]) # memchr.m4 serial 13 dnl Copyright (C) 2002-2004, 2009-2018 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 $HAVE_MEMCHR = 1; then # Detect platform-specific bugs in some versions of glibc: # memchr should not dereference anything with length 0 # https://bugzilla.redhat.com/show_bug.cgi?id=499689 # memchr should not dereference overestimated length after a match # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521737 # https://sourceware.org/bugzilla/show_bug.cgi?id=10162 # Assume that memchr works on platforms that lack mprotect. AC_CACHE_CHECK([whether memchr works], [gl_cv_func_memchr_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #if HAVE_SYS_MMAN_H # include # include # include # include # ifndef MAP_FILE # define MAP_FILE 0 # endif #endif ]], [[ int result = 0; char *fence = NULL; #if HAVE_SYS_MMAN_H && HAVE_MPROTECT # if HAVE_MAP_ANONYMOUS const int flags = MAP_ANONYMOUS | MAP_PRIVATE; const int fd = -1; # else /* !HAVE_MAP_ANONYMOUS */ const int flags = MAP_FILE | MAP_PRIVATE; int fd = open ("/dev/zero", O_RDONLY, 0666); if (fd >= 0) # endif { int pagesize = getpagesize (); char *two_pages = (char *) mmap (NULL, 2 * pagesize, PROT_READ | PROT_WRITE, flags, fd, 0); if (two_pages != (char *)(-1) && mprotect (two_pages + pagesize, pagesize, PROT_NONE) == 0) fence = two_pages + pagesize; } #endif if (fence) { if (memchr (fence, 0, 0)) result |= 1; strcpy (fence - 9, "12345678"); if (memchr (fence - 9, 0, 79) != fence - 1) result |= 2; if (memchr (fence - 1, 0, 3) != fence - 1) result |= 4; } return result; ]])], [gl_cv_func_memchr_works=yes], [gl_cv_func_memchr_works=no], [case "$host_os" in # Guess yes on native Windows. mingw*) gl_cv_func_memchr_works="guessing yes" ;; # Be pessimistic for now. *) gl_cv_func_memchr_works="guessing no" ;; 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]) ]) # mempcpy.m4 serial 11 dnl Copyright (C) 2003-2004, 2006-2007, 2009-2018 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_MEMPCPY], [ dnl Persuade glibc to declare mempcpy(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl The mempcpy() declaration in lib/string.in.h uses 'restrict'. AC_REQUIRE([AC_C_RESTRICT]) AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_CHECK_FUNCS([mempcpy]) if test $ac_cv_func_mempcpy = no; then HAVE_MEMPCPY=0 fi ]) # Prerequisites of lib/mempcpy.c. AC_DEFUN([gl_PREREQ_MEMPCPY], [ : ]) # memrchr.m4 serial 10 dnl Copyright (C) 2002-2003, 2005-2007, 2009-2018 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_MEMRCHR], [ dnl Persuade glibc to declare memrchr(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_CHECK_DECLS_ONCE([memrchr]) if test $ac_cv_have_decl_memrchr = no; then HAVE_DECL_MEMRCHR=0 fi AC_CHECK_FUNCS([memrchr]) ]) # Prerequisites of lib/memrchr.c. AC_DEFUN([gl_PREREQ_MEMRCHR], [:]) # minmax.m4 serial 4 dnl Copyright (C) 2005, 2009-2018 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 <$1> defines the MIN and MAX macros.]) fi m4_popdef([HEADER]) m4_popdef([header]) ]) # serial 13 # Copyright (C) 2001, 2003-2004, 2006, 2008-2018 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # On some systems, mkdir ("foo/", 0700) fails because of the trailing slash. # On others, mkdir ("foo/./", 0700) mistakenly succeeds. # On such systems, arrange to use a wrapper function. AC_DEFUN([gl_FUNC_MKDIR], [dnl AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_HEADERS_ONCE([unistd.h]) AC_CACHE_CHECK([whether mkdir handles trailing slash], [gl_cv_func_mkdir_trailing_slash_works], [rm -rf conftest.dir AC_RUN_IFELSE([AC_LANG_PROGRAM([[ # include # include ]], [return mkdir ("conftest.dir/", 0700);])], [gl_cv_func_mkdir_trailing_slash_works=yes], [gl_cv_func_mkdir_trailing_slash_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_mkdir_trailing_slash_works="guessing yes" ;; # Guess yes on MSVC, no on mingw. mingw*) AC_EGREP_CPP([Known], [ #ifdef _MSC_VER Known #endif ], [gl_cv_func_mkdir_trailing_slash_works="guessing yes"], [gl_cv_func_mkdir_trailing_slash_works="guessing no"]) ;; # If we don't know, assume the worst. *) gl_cv_func_mkdir_trailing_slash_works="guessing no" ;; esac ]) rm -rf conftest.dir ] ) case "$gl_cv_func_mkdir_trailing_slash_works" in *yes) ;; *) REPLACE_MKDIR=1 ;; esac AC_CACHE_CHECK([whether mkdir handles trailing dot], [gl_cv_func_mkdir_trailing_dot_works], [rm -rf conftest.dir AC_RUN_IFELSE([AC_LANG_PROGRAM([[ # include # include ]], [return !mkdir ("conftest.dir/./", 0700);])], [gl_cv_func_mkdir_trailing_dot_works=yes], [gl_cv_func_mkdir_trailing_dot_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_mkdir_trailing_dot_works="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_func_mkdir_trailing_dot_works="guessing no" ;; # If we don't know, assume the worst. *) gl_cv_func_mkdir_trailing_dot_works="guessing no" ;; esac ]) rm -rf conftest.dir ] ) case "$gl_cv_func_mkdir_trailing_dot_works" in *yes) ;; *) REPLACE_MKDIR=1 AC_DEFINE([FUNC_MKDIR_DOT_BUG], [1], [Define to 1 if mkdir mistakenly creates a directory given with a trailing dot component.]) ;; esac ]) # mkdirat.m4 serial 1 dnl Copyright (C) 2004-2018 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 Jim Meyering. AC_DEFUN([gl_FUNC_MKDIRAT], [ AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([mkdirat]) if test $ac_cv_func_mkdirat != yes; then HAVE_MKDIRAT=0 fi ]) # Prerequisite of mkdirat's declaration and of lib/mkdirat.c. AC_DEFUN([gl_PREREQ_MKDIRAT], [ AC_REQUIRE([AC_TYPE_MODE_T]) ]) # serial 30 dnl Copyright (C) 2002-2003, 2005-2007, 2009-2018 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 Jim Meyering. AC_DEFUN([gl_TIME_T_IS_SIGNED], [ AC_CACHE_CHECK([whether time_t is signed], [gl_cv_time_t_is_signed], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[#include char time_t_signed[(time_t) -1 < 0 ? 1 : -1];]])], [gl_cv_time_t_is_signed=yes], [gl_cv_time_t_is_signed=no])]) if test $gl_cv_time_t_is_signed = yes; then AC_DEFINE([TIME_T_IS_SIGNED], [1], [Define to 1 if time_t is signed.]) fi ]) dnl Test whether mktime works. Set gl_cv_func_working_mktime. AC_DEFUN([gl_FUNC_MKTIME_WORKS], [ AC_REQUIRE([gl_TIME_T_IS_SIGNED]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl We don't use AC_FUNC_MKTIME any more, because it is no longer maintained dnl in Autoconf and because it invokes AC_LIBOBJ. AC_CHECK_HEADERS_ONCE([unistd.h]) AC_CHECK_DECLS_ONCE([alarm]) AC_CHECK_FUNCS_ONCE([tzset]) 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 'yes' in 32-bit mode and 'no' in 64-bit mode. # But we need a configuration result that is valid in both modes. gl_cv_func_working_mktime=no fi AC_CACHE_CHECK([for working mktime], [gl_cv_func_working_mktime], [AC_RUN_IFELSE( [AC_LANG_SOURCE( [[/* Test program from Paul Eggert and Tony Leneis. */ #include #include #include #ifdef HAVE_UNISTD_H # include #endif #if HAVE_DECL_ALARM # include #endif #ifndef TIME_T_IS_SIGNED # define TIME_T_IS_SIGNED 0 #endif /* Work around redefinition to rpl_putenv by other config tests. */ #undef putenv static time_t time_t_max; static time_t time_t_min; /* Values we'll use to set the TZ environment variable. */ static char *tz_strings[] = { (char *) 0, "TZ=GMT0", "TZ=JST-9", "TZ=EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00" }; #define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0])) /* Return 0 if mktime fails to convert a date in the spring-forward gap. Based on a problem report from Andreas Jaeger. */ static int spring_forward_gap () { /* glibc (up to about 1998-10-07) failed this test. */ struct tm tm; /* Use the portable POSIX.1 specification "TZ=PST8PDT,M4.1.0,M10.5.0" instead of "TZ=America/Vancouver" in order to detect the bug even on systems that don't support the Olson extension, or don't have the full zoneinfo tables installed. */ putenv ("TZ=PST8PDT,M4.1.0,M10.5.0"); tm.tm_year = 98; tm.tm_mon = 3; tm.tm_mday = 5; tm.tm_hour = 2; tm.tm_min = 0; tm.tm_sec = 0; tm.tm_isdst = -1; return mktime (&tm) != (time_t) -1; } static int mktime_test1 (time_t now) { struct tm *lt; return ! (lt = localtime (&now)) || mktime (lt) == now; } static int mktime_test (time_t now) { return (mktime_test1 (now) && mktime_test1 ((time_t) (time_t_max - now)) && mktime_test1 ((time_t) (time_t_min + now))); } static int irix_6_4_bug () { /* Based on code from Ariel Faigon. */ struct tm tm; tm.tm_year = 96; tm.tm_mon = 3; tm.tm_mday = 0; tm.tm_hour = 0; tm.tm_min = 0; tm.tm_sec = 0; tm.tm_isdst = -1; mktime (&tm); return tm.tm_mon == 2 && tm.tm_mday == 31; } static int bigtime_test (int j) { struct tm tm; time_t now; tm.tm_year = tm.tm_mon = tm.tm_mday = tm.tm_hour = tm.tm_min = tm.tm_sec = j; now = mktime (&tm); if (now != (time_t) -1) { struct tm *lt = localtime (&now); if (! (lt && lt->tm_year == tm.tm_year && lt->tm_mon == tm.tm_mon && lt->tm_mday == tm.tm_mday && lt->tm_hour == tm.tm_hour && lt->tm_min == tm.tm_min && lt->tm_sec == tm.tm_sec && lt->tm_yday == tm.tm_yday && lt->tm_wday == tm.tm_wday && ((lt->tm_isdst < 0 ? -1 : 0 < lt->tm_isdst) == (tm.tm_isdst < 0 ? -1 : 0 < tm.tm_isdst)))) return 0; } return 1; } static int year_2050_test () { /* The correct answer for 2050-02-01 00:00:00 in Pacific time, ignoring leap seconds. */ unsigned long int answer = 2527315200UL; struct tm tm; time_t t; tm.tm_year = 2050 - 1900; tm.tm_mon = 2 - 1; tm.tm_mday = 1; tm.tm_hour = tm.tm_min = tm.tm_sec = 0; tm.tm_isdst = -1; /* Use the portable POSIX.1 specification "TZ=PST8PDT,M4.1.0,M10.5.0" instead of "TZ=America/Vancouver" in order to detect the bug even on systems that don't support the Olson extension, or don't have the full zoneinfo tables installed. */ putenv ("TZ=PST8PDT,M4.1.0,M10.5.0"); t = mktime (&tm); /* Check that the result is either a failure, or close enough to the correct answer that we can assume the discrepancy is due to leap seconds. */ return (t == (time_t) -1 || (0 < t && answer - 120 <= t && t <= answer + 120)); } int main () { int result = 0; time_t t, delta; int i, j; int time_t_signed_magnitude = (time_t) ~ (time_t) 0 < (time_t) -1; #if HAVE_DECL_ALARM /* This test makes some buggy mktime implementations loop. Give up after 60 seconds; a mktime slower than that isn't worth using anyway. */ signal (SIGALRM, SIG_DFL); alarm (60); #endif time_t_max = (! TIME_T_IS_SIGNED ? (time_t) -1 : ((((time_t) 1 << (sizeof (time_t) * CHAR_BIT - 2)) - 1) * 2 + 1)); time_t_min = (! TIME_T_IS_SIGNED ? (time_t) 0 : time_t_signed_magnitude ? ~ (time_t) 0 : ~ time_t_max); delta = time_t_max / 997; /* a suitable prime number */ for (i = 0; i < N_STRINGS; i++) { if (tz_strings[i]) putenv (tz_strings[i]); for (t = 0; t <= time_t_max - delta && (result & 1) == 0; t += delta) if (! mktime_test (t)) result |= 1; if ((result & 2) == 0 && ! (mktime_test ((time_t) 1) && mktime_test ((time_t) (60 * 60)) && mktime_test ((time_t) (60 * 60 * 24)))) result |= 2; for (j = 1; (result & 4) == 0; j <<= 1) { if (! bigtime_test (j)) result |= 4; if (INT_MAX / 2 < j) break; } if ((result & 8) == 0 && ! bigtime_test (INT_MAX)) result |= 8; } if (! irix_6_4_bug ()) result |= 16; if (! spring_forward_gap ()) result |= 32; if (! year_2050_test ()) result |= 64; return result; }]])], [gl_cv_func_working_mktime=yes], [gl_cv_func_working_mktime=no], [case "$host_os" in # Guess no on native Windows. mingw*) gl_cv_func_working_mktime="guessing no" ;; *) gl_cv_func_working_mktime="guessing no" ;; esac ]) ]) ]) dnl Main macro of module 'mktime'. AC_DEFUN([gl_FUNC_MKTIME], [ AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_FUNC_MKTIME_WORKS]) REPLACE_MKTIME=0 if test "$gl_cv_func_working_mktime" != yes; then REPLACE_MKTIME=1 AC_DEFINE([NEED_MKTIME_WORKING], [1], [Define if the compilation of mktime.c should define 'mktime' with the algorithmic workarounds.]) fi case "$host_os" in mingw*) REPLACE_MKTIME=1 AC_DEFINE([NEED_MKTIME_WINDOWS], [1], [Define if the compilation of mktime.c should define 'mktime' with the native Windows TZ workaround.]) ;; esac ]) dnl Main macro of module 'mktime-internal'. AC_DEFUN([gl_FUNC_MKTIME_INTERNAL], [ AC_REQUIRE([gl_FUNC_MKTIME_WORKS]) WANT_MKTIME_INTERNAL=0 dnl BeOS has __mktime_internal in libc, but other platforms don't. AC_CHECK_FUNC([__mktime_internal], [AC_DEFINE([mktime_internal], [__mktime_internal], [Define to the real name of the mktime_internal function.]) ], [dnl mktime works but it doesn't export __mktime_internal, dnl so we need to substitute our own mktime implementation. WANT_MKTIME_INTERNAL=1 AC_DEFINE([NEED_MKTIME_INTERNAL], [1], [Define if the compilation of mktime.c should define 'mktime_internal'.]) ]) ]) # Prerequisites of lib/mktime.c. AC_DEFUN([gl_PREREQ_MKTIME], [:]) # mmap-anon.m4 serial 10 dnl Copyright (C) 2005, 2007, 2009-2018 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 $gl_have_mmap_anonymous = yes; then AC_DEFINE([HAVE_MAP_ANONYMOUS], [1], [Define to 1 if mmap()'s MAP_ANONYMOUS flag is available after including config.h and .]) fi fi ]) # mode_t.m4 serial 2 dnl Copyright (C) 2009-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. # For using mode_t, it's sufficient to use AC_TYPE_MODE_T and # include . # Define PROMOTED_MODE_T to the type that is the result of "default argument # promotion" (ISO C 6.5.2.2.(6)) of the type mode_t. AC_DEFUN([gl_PROMOTED_TYPE_MODE_T], [ AC_REQUIRE([AC_TYPE_MODE_T]) AC_CACHE_CHECK([for promoted mode_t type], [gl_cv_promoted_mode_t], [ dnl Assume mode_t promotes to 'int' if and only if it is smaller than 'int', dnl and to itself otherwise. This assumption is not guaranteed by the ISO C dnl standard, but we don't know of any real-world counterexamples. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]], [[typedef int array[2 * (sizeof (mode_t) < sizeof (int)) - 1];]])], [gl_cv_promoted_mode_t='int'], [gl_cv_promoted_mode_t='mode_t']) ]) AC_DEFINE_UNQUOTED([PROMOTED_MODE_T], [$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) 2011-2018 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) 2011-2018 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) 2008-2018 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]) ]) # nocrash.m4 serial 4 dnl Copyright (C) 2005, 2009-2018 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 Based on libsigsegv, from Bruno Haible and Paolo Bonzini. AC_PREREQ([2.13]) dnl Expands to some code for use in .c programs that will cause the configure dnl test to exit instead of crashing. This is useful to avoid triggering dnl action from a background debugger and to avoid core dumps. dnl Usage: ... dnl ]GL_NOCRASH[ dnl ... dnl int main() { nocrash_init(); ... } AC_DEFUN([GL_NOCRASH],[[ #include #if defined __MACH__ && defined __APPLE__ /* Avoid a crash on Mac OS X. */ #include #include #include #include #include #include /* The exception port on which our thread listens. */ static mach_port_t our_exception_port; /* The main function of the thread listening for exceptions of type EXC_BAD_ACCESS. */ static void * mach_exception_thread (void *arg) { /* Buffer for a message to be received. */ struct { mach_msg_header_t head; mach_msg_body_t msgh_body; char data[1024]; } msg; mach_msg_return_t retval; /* Wait for a message on the exception port. */ retval = mach_msg (&msg.head, MACH_RCV_MSG | MACH_RCV_LARGE, 0, sizeof (msg), our_exception_port, MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL); if (retval != MACH_MSG_SUCCESS) abort (); exit (1); } static void nocrash_init (void) { mach_port_t self = mach_task_self (); /* Allocate a port on which the thread shall listen for exceptions. */ if (mach_port_allocate (self, MACH_PORT_RIGHT_RECEIVE, &our_exception_port) == KERN_SUCCESS) { /* See http://web.mit.edu/darwin/src/modules/xnu/osfmk/man/mach_port_insert_right.html. */ if (mach_port_insert_right (self, our_exception_port, our_exception_port, MACH_MSG_TYPE_MAKE_SEND) == KERN_SUCCESS) { /* The exceptions we want to catch. Only EXC_BAD_ACCESS is interesting for us. */ exception_mask_t mask = EXC_MASK_BAD_ACCESS; /* Create the thread listening on the exception port. */ pthread_attr_t attr; pthread_t thread; if (pthread_attr_init (&attr) == 0 && pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED) == 0 && pthread_create (&thread, &attr, mach_exception_thread, NULL) == 0) { pthread_attr_destroy (&attr); /* Replace the exception port info for these exceptions with our own. Note that we replace the exception port for the entire task, not only for a particular thread. This has the effect that when our exception port gets the message, the thread specific exception port has already been asked, and we don't need to bother about it. See http://web.mit.edu/darwin/src/modules/xnu/osfmk/man/task_set_exception_ports.html. */ task_set_exception_ports (self, mask, our_exception_port, EXCEPTION_DEFAULT, MACHINE_THREAD_STATE); } } } } #elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ /* Avoid a crash on native Windows. */ #define WIN32_LEAN_AND_MEAN #include #include static LONG WINAPI exception_filter (EXCEPTION_POINTERS *ExceptionInfo) { switch (ExceptionInfo->ExceptionRecord->ExceptionCode) { case EXCEPTION_ACCESS_VIOLATION: case EXCEPTION_IN_PAGE_ERROR: case EXCEPTION_STACK_OVERFLOW: case EXCEPTION_GUARD_PAGE: case EXCEPTION_PRIV_INSTRUCTION: case EXCEPTION_ILLEGAL_INSTRUCTION: case EXCEPTION_DATATYPE_MISALIGNMENT: case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: case EXCEPTION_NONCONTINUABLE_EXCEPTION: exit (1); } return EXCEPTION_CONTINUE_SEARCH; } static void nocrash_init (void) { SetUnhandledExceptionFilter ((LPTOP_LEVEL_EXCEPTION_FILTER) exception_filter); } #else /* Avoid a crash on POSIX systems. */ #include #include /* A POSIX signal handler. */ static void exception_handler (int sig) { _exit (1); } static void nocrash_init (void) { #ifdef SIGSEGV signal (SIGSEGV, exception_handler); #endif #ifdef SIGBUS signal (SIGBUS, exception_handler); #endif } #endif ]]) # serial 34 # Copyright (C) 1996-1997, 1999-2007, 2009-2018 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 Jim Meyering and Paul Eggert. AC_DEFUN([gl_FUNC_GNU_STRFTIME], [ # This defines (or not) HAVE_TZNAME and HAVE_TM_ZONE. AC_REQUIRE([AC_STRUCT_TIMEZONE]) AC_REQUIRE([gl_TM_GMTOFF]) AC_CHECK_FUNCS_ONCE([tzset]) AC_DEFINE([my_strftime], [nstrftime], [Define to the name of the strftime replacement function.]) ]) # off_t.m4 serial 1 dnl Copyright (C) 2012-2018 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 2017-2018 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.m4 serial 15 dnl Copyright (C) 2007-2018 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 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.]) 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]) : ]) # serial 46 # See if we need to use our replacement for Solaris' openat et al functions. dnl Copyright (C) 2004-2018 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 Jim Meyering. AC_DEFUN([gl_FUNC_OPENAT], [ AC_REQUIRE([gl_FCNTL_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([openat]) AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) AC_REQUIRE([gl_PREPROC_O_CLOEXEC]) case $ac_cv_func_openat+$gl_cv_func_lstat_dereferences_slashed_symlink+$gl_cv_macro_O_CLOEXEC in yes+*yes+yes) ;; yes+*) # Solaris 10 lacks O_CLOEXEC. # Solaris 9 has *at functions, but uniformly mishandles trailing # slash in all of them. REPLACE_OPENAT=1 ;; *) HAVE_OPENAT=0 ;; esac ]) # Prerequisites of lib/openat.c. AC_DEFUN([gl_PREREQ_OPENAT], [ AC_REQUIRE([gl_PROMOTED_TYPE_MODE_T]) : ]) # opendir.m4 serial 5 dnl Copyright (C) 2011-2018 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_OPENDIR], [ AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_FUNCS([opendir]) if test $ac_cv_func_opendir = no; then HAVE_OPENDIR=0 fi dnl Replace opendir() 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_OPENDIR = 1; then REPLACE_OPENDIR=1 fi fi ]) dnl Replace opendir() on OS/2 kLIBC to support dirfd() function replaced dnl by gnulib. case $host_os,$HAVE_OPENDIR in os2*,1) REPLACE_OPENDIR=1;; esac ]) # parse-datetime.m4 serial 22 dnl Copyright (C) 2002-2006, 2008-2018 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 Define HAVE_COMPOUND_LITERALS if the C compiler supports compound literals dnl as in ISO C99. dnl Note that compound literals such as (struct s) { 3, 4 } can be used for dnl initialization of stack-allocated variables, but are not constant dnl expressions and therefore cannot be used as initializer for global or dnl static variables (even though gcc supports this in pre-C99 mode). AC_DEFUN([gl_C_COMPOUND_LITERALS], [ AC_CACHE_CHECK([for compound literals], [gl_cv_compound_literals], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[struct s { int i, j; };]], [[struct s t = (struct s) { 3, 4 }; if (t.i != 0) return 0;]])], gl_cv_compound_literals=yes, gl_cv_compound_literals=no)]) if test $gl_cv_compound_literals = yes; then AC_DEFINE([HAVE_COMPOUND_LITERALS], [1], [Define if you have compound literals.]) fi ]) AC_DEFUN([gl_PARSE_DATETIME], [ dnl Prerequisites of lib/parse-datetime.h. AC_REQUIRE([AM_STDBOOL_H]) AC_REQUIRE([gl_TIMESPEC]) dnl Prerequisites of lib/parse-datetime.y. AC_REQUIRE([gl_BISON]) AC_REQUIRE([gl_C_COMPOUND_LITERALS]) AC_STRUCT_TIMEZONE AC_REQUIRE([gl_CLOCK_TIME]) AC_REQUIRE([gl_TM_GMTOFF]) ]) # pathmax.m4 serial 10 dnl Copyright (C) 2002-2003, 2005-2006, 2009-2018 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 __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]) ]) # printf.m4 serial 58 dnl Copyright (C) 2003, 2007-2018 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 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";; 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, assume the worst. *) gl_cv_func_printf_sizes_c99="guessing no";; 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 beos*) gl_cv_func_printf_long_double="guessing no";; # 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 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";; 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, assume the worst. *) gl_cv_func_printf_infinite="guessing no";; 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 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";; 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, assume the worst. *) gl_cv_func_printf_infinite_long_double="guessing no";; 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 "$host_os" in # Guess yes on glibc >= 2.5 systems. *-gnu* | gnu*) AC_EGREP_CPP([BZ2908], [ #include #ifdef __GNU_LIBRARY__ #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 5) || (__GLIBC__ > 2)) && !defined __UCLIBC__ BZ2908 #endif #endif ], [gl_cv_func_printf_directive_a="guessing yes"], [gl_cv_func_printf_directive_a="guessing no"]) ;; # Guess no on native Windows. mingw*) gl_cv_func_printf_directive_a="guessing no";; # If we don't know, assume the worst. *) gl_cv_func_printf_directive_a="guessing no";; esac ]) ]) ]) dnl Test whether the *printf family of functions supports the %F format dnl directive. (ISO C99, POSIX:2001) dnl Result is gl_cv_func_printf_directive_f. AC_DEFUN([gl_PRINTF_DIRECTIVE_F], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports the 'F' directive], [gl_cv_func_printf_directive_f], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static char buf[100]; static double zero = 0.0; int main () { int result = 0; if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0 || strcmp (buf, "1234567.000000 33") != 0) result |= 1; if (sprintf (buf, "%F", 1.0 / zero) < 0 || (strcmp (buf, "INF") != 0 && strcmp (buf, "INFINITY") != 0)) result |= 2; /* This catches a Cygwin 1.5.x bug. */ if (sprintf (buf, "%.F", 1234.0) < 0 || strcmp (buf, "1234") != 0) result |= 4; return result; }]])], [gl_cv_func_printf_directive_f=yes], [gl_cv_func_printf_directive_f=no], [ case "$host_os" in changequote(,)dnl # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_printf_directive_f="guessing yes";; # Guess yes on 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";; 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, assume the worst. *) gl_cv_func_printf_directive_f="guessing no";; 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 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 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 "$host_os" in netbsd[1-3]* | netbsdelf[1-3]* | netbsdaout[1-3]* | netbsdcoff[1-3]*) gl_cv_func_printf_positions="guessing no";; beos*) gl_cv_func_printf_positions="guessing no";; # Guess no on native Windows. mingw* | pw*) gl_cv_func_printf_positions="guessing no";; *) gl_cv_func_printf_positions="guessing yes";; esac changequote([,])dnl ]) ]) ]) dnl Test whether the *printf family of functions supports POSIX/XSI format dnl strings with the ' flag for grouping of decimal digits. (POSIX:2001) dnl Result is gl_cv_func_printf_flag_grouping. AC_DEFUN([gl_PRINTF_FLAG_GROUPING], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports the grouping flag], [gl_cv_func_printf_flag_grouping], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static char buf[100]; int main () { if (sprintf (buf, "%'d %d", 1234567, 99) < 0 || buf[strlen (buf) - 1] != '9') return 1; return 0; }]])], [gl_cv_func_printf_flag_grouping=yes], [gl_cv_func_printf_flag_grouping=no], [ changequote(,)dnl case "$host_os" in cygwin*) gl_cv_func_printf_flag_grouping="guessing no";; netbsd*) gl_cv_func_printf_flag_grouping="guessing no";; # Guess no on 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 "$host_os" in # Guess yes on HP-UX 11. hpux11*) gl_cv_func_printf_flag_leftadjust="guessing yes";; # Guess no on HP-UX 10 and older. hpux*) gl_cv_func_printf_flag_leftadjust="guessing no";; # Guess yes on native Windows. mingw*) gl_cv_func_printf_flag_leftadjust="guessing yes";; # Guess yes otherwise. *) gl_cv_func_printf_flag_leftadjust="guessing yes";; esac changequote([,])dnl ]) ]) ]) dnl Test whether the *printf family of functions supports padding of non-finite dnl values with the 0 flag correctly. (ISO C99 + TC1 + TC2.) See dnl dnl Result is gl_cv_func_printf_flag_zero. AC_DEFUN([gl_PRINTF_FLAG_ZERO], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf supports the zero flag correctly], [gl_cv_func_printf_flag_zero], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #include static char buf[100]; static double zero = 0.0; int main () { if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0 || (strcmp (buf, " inf") != 0 && strcmp (buf, " infinity") != 0)) return 1; return 0; }]])], [gl_cv_func_printf_flag_zero=yes], [gl_cv_func_printf_flag_zero=no], [ changequote(,)dnl case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_printf_flag_zero="guessing yes";; # Guess yes on BeOS. beos*) gl_cv_func_printf_flag_zero="guessing yes";; # Guess no on native Windows. mingw*) gl_cv_func_printf_flag_zero="guessing no";; # If we don't know, assume the worst. *) gl_cv_func_printf_flag_zero="guessing no";; 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 "$host_os" in # Guess no only on Solaris, native Windows, and BeOS systems. solaris*) gl_cv_func_printf_precision="guessing no" ;; mingw* | pw*) gl_cv_func_printf_precision="guessing no" ;; beos*) gl_cv_func_printf_precision="guessing no" ;; *) gl_cv_func_printf_precision="guessing yes" ;; esac changequote([,])dnl ]) ]) ]) dnl Test whether the *printf family of functions recovers gracefully in case dnl of an out-of-memory condition, or whether it crashes the entire program. dnl Result is gl_cv_func_printf_enomem. AC_DEFUN([gl_PRINTF_ENOMEM], [ AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gl_MULTIARCH]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether printf survives out-of-memory conditions], [gl_cv_func_printf_enomem], [ gl_cv_func_printf_enomem="guessing no" if test "$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";; # If we don't know, assume the worst. *) gl_cv_func_printf_enomem="guessing no";; 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 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 no on native Windows. mingw*) gl_cv_func_snprintf_truncation_c99="guessing no";; # If we don't know, assume the worst. *) gl_cv_func_snprintf_truncation_c99="guessing no";; 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 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";; 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, assume the worst. *) gl_cv_func_snprintf_retval_c99="guessing no";; 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], [ changequote(,)dnl case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) 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 native Windows. mingw*) gl_cv_func_snprintf_directive_n="guessing no";; # If we don't know, assume the worst. *) gl_cv_func_snprintf_directive_n="guessing no";; esac changequote([,])dnl ]) ]) ]) 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 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 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 native Windows. mingw* | pw*) gl_cv_func_vsnprintf_zerosize_c99="guessing yes";; # If we don't know, assume the worst. *) gl_cv_func_vsnprintf_zerosize_c99="guessing no";; 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 11.3 . . . . # . . # . . . . . . . . . . . . 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 old mingw / msvcrt # # # # # # . . # # . # # ? . # # # . . dnl MSVC 9 # # # # # # # . # # . # # ? # # # # . . dnl mingw 2009-2011 . # . # . . . . # # . . . ? . . . . . . dnl mingw-w64 2011 # # # # # # . . # # . # # ? . # # # . . # quote.m4 serial 6 dnl Copyright (C) 2002-2003, 2005-2006, 2009-2018 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_QUOTE], [ dnl Prerequisites of lib/quote.c. dnl (none) : ]) # quotearg.m4 serial 9 dnl Copyright (C) 2002, 2004-2018 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_QUOTEARG], [ : ]) # raise.m4 serial 4 dnl Copyright (C) 2011-2018 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], [:]) # readdir.m4 serial 1 dnl Copyright (C) 2011-2018 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_READDIR], [ AC_REQUIRE([gl_DIRENT_H_DEFAULTS]) AC_CHECK_FUNCS([readdir]) if test $ac_cv_func_readdir = no; then HAVE_READDIR=0 fi ]) # readlink.m4 serial 13 dnl Copyright (C) 2003, 2007, 2009-2018 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_READLINK], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_FUNCS_ONCE([readlink]) if test $ac_cv_func_readlink = no; then HAVE_READLINK=0 else AC_CACHE_CHECK([whether readlink signature is correct], [gl_cv_decl_readlink_works], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include /* Cause compilation failure if original declaration has wrong type. */ ssize_t readlink (const char *, char *, size_t);]])], [gl_cv_decl_readlink_works=yes], [gl_cv_decl_readlink_works=no])]) dnl Solaris 9 ignores trailing slash. dnl FreeBSD 7.2 dereferences only one level of links with trailing slash. AC_CACHE_CHECK([whether readlink handles trailing slash correctly], [gl_cv_func_readlink_works], [# We have readlink, so assume ln -s works. ln -s conftest.no-such conftest.link ln -s conftest.link conftest.lnk2 AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[char buf[20]; return readlink ("conftest.lnk2/", buf, sizeof buf) != -1;]])], [gl_cv_func_readlink_works=yes], [gl_cv_func_readlink_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_readlink_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_readlink_works="guessing no" ;; esac ]) rm -f conftest.link conftest.lnk2]) case "$gl_cv_func_readlink_works" in *yes) if test "$gl_cv_decl_readlink_works" != yes; then REPLACE_READLINK=1 fi ;; *) AC_DEFINE([READLINK_TRAILING_SLASH_BUG], [1], [Define to 1 if readlink fails to recognize a trailing slash.]) REPLACE_READLINK=1 ;; esac fi ]) # Like gl_FUNC_READLINK, except prepare for separate compilation # (no REPLACE_READLINK, no AC_LIBOBJ). AC_DEFUN([gl_FUNC_READLINK_SEPARATE], [ AC_CHECK_FUNCS_ONCE([readlink]) gl_PREREQ_READLINK ]) # Prerequisites of lib/readlink.c. AC_DEFUN([gl_PREREQ_READLINK], [ : ]) # serial 5 # See if we need to provide readlinkat replacement. dnl Copyright (C) 2009-2018 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_READLINKAT], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([readlinkat]) AC_REQUIRE([gl_FUNC_READLINK]) if test $ac_cv_func_readlinkat = no; then HAVE_READLINKAT=0 else AC_CACHE_CHECK([whether readlinkat signature is correct], [gl_cv_decl_readlinkat_works], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include /* Check whether original declaration has correct type. */ ssize_t readlinkat (int, char const *, char *, size_t);]])], [gl_cv_decl_readlinkat_works=yes], [gl_cv_decl_readlinkat_works=no])]) # Assume readinkat has the same trailing slash bug as readlink, # as is the case on Mac Os X 10.10 case "$gl_cv_func_readlink_works" in *yes) if test "$gl_cv_decl_readlinkat_works" != yes; then REPLACE_READLINKAT=1 fi ;; *) REPLACE_READLINKAT=1 ;; esac fi ]) # realloc.m4 serial 15 dnl Copyright (C) 2007, 2009-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. m4_version_prereq([2.70], [] ,[ # This is adapted with modifications from upstream Autoconf here: # https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c AC_DEFUN([_AC_FUNC_REALLOC_IF], [ AC_REQUIRE([AC_HEADER_STDC])dnl AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles AC_CHECK_HEADERS([stdlib.h]) AC_CACHE_CHECK([for GNU libc compatible realloc], [ac_cv_func_realloc_0_nonnull], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#if defined STDC_HEADERS || defined HAVE_STDLIB_H # include #else char *realloc (); #endif ]], [[char *p = realloc (0, 0); int result = !p; free (p); return result;]]) ], [ac_cv_func_realloc_0_nonnull=yes], [ac_cv_func_realloc_0_nonnull=no], [case "$host_os" in # Guess yes on platforms where we know the result. *-gnu* | gnu* | freebsd* | netbsd* | openbsd* \ | hpux* | solaris* | cygwin* | mingw*) ac_cv_func_realloc_0_nonnull=yes ;; # If we don't know, assume the worst. *) ac_cv_func_realloc_0_nonnull=no ;; esac ]) ]) AS_IF([test $ac_cv_func_realloc_0_nonnull = yes], [$1], [$2]) ])# 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 ]) # serial 29 # Copyright (C) 2001, 2003, 2005-2006, 2009-2018 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 Volker Borchert. dnl Determine whether rename works for source file names with a trailing slash. dnl The rename from SunOS 4.1.1_U1 doesn't. dnl dnl If it doesn't, then define RENAME_TRAILING_SLASH_BUG and arrange dnl to compile the wrapper function. dnl AC_DEFUN([gl_FUNC_RENAME], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([lstat]) dnl Solaris 11, AIX 7.1 mistakenly allow rename("file","name/"). dnl NetBSD 1.6 mistakenly forbids rename("dir","name/"). dnl FreeBSD 7.2 mistakenly allows rename("file","link-to-file/"). dnl The Solaris bug can be worked around without stripping dnl trailing slash, while the NetBSD bug requires stripping; dnl the two conditions can be distinguished by whether hard dnl links are also broken. AC_CACHE_CHECK([whether rename honors trailing slash on destination], [gl_cv_func_rename_slash_dst_works], [rm -rf conftest.f conftest.f1 conftest.f2 conftest.d1 conftest.d2 conftest.lnk touch conftest.f && touch conftest.f1 && mkdir conftest.d1 || AC_MSG_ERROR([cannot create temporary files]) # Assume that if we have lstat, we can also check symlinks. if test $ac_cv_func_lstat = yes; then ln -s conftest.f conftest.lnk fi AC_RUN_IFELSE( [AC_LANG_PROGRAM([[ # include # include ]], [[int result = 0; if (rename ("conftest.f1", "conftest.f2/") == 0) result |= 1; if (rename ("conftest.d1", "conftest.d2/") != 0) result |= 2; #if HAVE_LSTAT if (rename ("conftest.f", "conftest.lnk/") == 0) result |= 4; #endif return result; ]])], [gl_cv_func_rename_slash_dst_works=yes], [gl_cv_func_rename_slash_dst_works=no], dnl When crosscompiling, assume rename is broken. [case "$host_os" in # Guess yes on glibc systems. *-gnu*) gl_cv_func_rename_slash_dst_works="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_func_rename_slash_dst_works="guessing no" ;; # If we don't know, assume the worst. *) gl_cv_func_rename_slash_dst_works="guessing no" ;; esac ]) rm -rf conftest.f conftest.f1 conftest.f2 conftest.d1 conftest.d2 conftest.lnk ]) case "$gl_cv_func_rename_slash_dst_works" in *yes) ;; *) REPLACE_RENAME=1 AC_DEFINE([RENAME_TRAILING_SLASH_DEST_BUG], [1], [Define if rename does not correctly handle slashes on the destination argument, such as on Solaris 11 or NetBSD 1.6.]) ;; esac dnl SunOS 4.1.1_U1 mistakenly forbids rename("dir/","name"). dnl Solaris 9 mistakenly allows rename("file/","name"). dnl FreeBSD 7.2 mistakenly allows rename("link-to-file/","name"). dnl These bugs require stripping trailing slash to avoid corrupting dnl symlinks with a trailing slash. AC_CACHE_CHECK([whether rename honors trailing slash on source], [gl_cv_func_rename_slash_src_works], [rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2 conftest.d3 conftest.lnk touch conftest.f && touch conftest.f1 && mkdir conftest.d1 || AC_MSG_ERROR([cannot create temporary files]) # Assume that if we have lstat, we can also check symlinks. if test $ac_cv_func_lstat = yes; then ln -s conftest.f conftest.lnk fi AC_RUN_IFELSE( [AC_LANG_PROGRAM([[ # include # include ]], [[int result = 0; if (rename ("conftest.f1/", "conftest.d3") == 0) result |= 1; if (rename ("conftest.d1/", "conftest.d2") != 0) result |= 2; #if HAVE_LSTAT if (rename ("conftest.lnk/", "conftest.f") == 0) result |= 4; #endif return result; ]])], [gl_cv_func_rename_slash_src_works=yes], [gl_cv_func_rename_slash_src_works=no], dnl When crosscompiling, assume rename is broken. [case "$host_os" in # Guess yes on glibc systems. *-gnu*) gl_cv_func_rename_slash_src_works="guessing yes" ;; # Guess yes on native Windows. mingw*) gl_cv_func_rename_slash_src_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_rename_slash_src_works="guessing no" ;; esac ]) rm -rf conftest.f conftest.f1 conftest.d1 conftest.d2 conftest.d3 conftest.lnk ]) case "$gl_cv_func_rename_slash_src_works" in *yes) ;; *) REPLACE_RENAME=1 AC_DEFINE([RENAME_TRAILING_SLASH_SOURCE_BUG], [1], [Define if rename does not correctly handle slashes on the source argument, such as on Solaris 9 or cygwin 1.5.]) ;; esac dnl NetBSD 1.6 and cygwin 1.5.x mistakenly reduce hard link count dnl on rename("h1","h2"). dnl This bug requires stat'ting targets prior to attempting rename. AC_CHECK_FUNCS_ONCE([link]) AC_CACHE_CHECK([whether rename manages hard links correctly], [gl_cv_func_rename_link_works], [if test $ac_cv_func_link = yes; then rm -rf conftest.f conftest.f1 conftest.f2 if touch conftest.f conftest.f2 && ln conftest.f conftest.f1 && set x `ls -i conftest.f conftest.f1` && test "$2" = "$4"; then AC_RUN_IFELSE( [AC_LANG_PROGRAM([[ # include # include # include # include ]], [[int result = 0; if (rename ("conftest.f", "conftest.f1")) result |= 1; if (unlink ("conftest.f1")) result |= 2; /* Allow either the POSIX-required behavior, where the previous rename kept conftest.f, or the (better) NetBSD behavior, where it removed conftest.f. */ if (rename ("conftest.f", "conftest.f") != 0 && errno != ENOENT) result |= 4; if (rename ("conftest.f1", "conftest.f1") == 0) result |= 8; if (rename ("conftest.f2", "conftest.f2") != 0) result |= 16; return result; ]])], [gl_cv_func_rename_link_works=yes], [gl_cv_func_rename_link_works=no], dnl When crosscompiling, assume rename is broken. [case "$host_os" in # Guess yes on glibc systems. *-gnu*) gl_cv_func_rename_link_works="guessing yes" ;; # Guess yes on native Windows. mingw*) gl_cv_func_rename_link_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_rename_link_works="guessing no" ;; esac ]) else gl_cv_func_rename_link_works="guessing no" fi rm -rf conftest.f conftest.f1 conftest.f2 else gl_cv_func_rename_link_works=yes fi ]) case "$gl_cv_func_rename_link_works" in *yes) ;; *) REPLACE_RENAME=1 AC_DEFINE([RENAME_HARD_LINK_BUG], [1], [Define if rename fails to leave hard links alone, as on NetBSD 1.6 or Cygwin 1.5.]) ;; esac dnl Cygwin 1.5.x mistakenly allows rename("dir","file"). dnl mingw mistakenly forbids rename("dir1","dir2"). dnl These bugs require stripping trailing slash to avoid corrupting dnl symlinks with a trailing slash. AC_CACHE_CHECK([whether rename manages existing destinations correctly], [gl_cv_func_rename_dest_works], [rm -rf conftest.f conftest.d1 conftest.d2 touch conftest.f && mkdir conftest.d1 conftest.d2 || AC_MSG_ERROR([cannot create temporary files]) AC_RUN_IFELSE( [AC_LANG_PROGRAM([[ # include # include ]], [[int result = 0; if (rename ("conftest.d1", "conftest.d2") != 0) result |= 1; if (rename ("conftest.d2", "conftest.f") == 0) result |= 2; return result; ]])], [gl_cv_func_rename_dest_works=yes], [gl_cv_func_rename_dest_works=no], dnl When crosscompiling, assume rename is broken. [case "$host_os" in # Guess yes on glibc systems. *-gnu*) gl_cv_func_rename_dest_works="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_func_rename_dest_works="guessing no" ;; # If we don't know, assume the worst. *) gl_cv_func_rename_dest_works="guessing no" ;; esac ]) rm -rf conftest.f conftest.d1 conftest.d2 ]) case "$gl_cv_func_rename_dest_works" in *yes) ;; *) REPLACE_RENAME=1 AC_DEFINE([RENAME_DEST_EXISTS_BUG], [1], [Define if rename does not work when the destination file exists, as on Cygwin 1.5 or Windows.]) ;; esac ]) # serial 3 # See if we need to provide renameat replacement. dnl Copyright (C) 2009-2018 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_RENAMEAT], [ AC_REQUIRE([gl_FUNC_OPENAT]) AC_REQUIRE([gl_FUNC_RENAME]) AC_REQUIRE([gl_STDIO_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_HEADERS([linux/fs.h]) AC_CHECK_FUNCS_ONCE([renameat]) if test $ac_cv_func_renameat = no; then HAVE_RENAMEAT=0 elif test $REPLACE_RENAME = 1; then dnl Solaris 9 and 10 have the same bugs in renameat as in rename. REPLACE_RENAMEAT=1 fi ]) # rmdir.m4 serial 15 dnl Copyright (C) 2002, 2005, 2009-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_RMDIR], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles dnl Detect cygwin 1.5.x bug. AC_CHECK_HEADERS_ONCE([unistd.h]) AC_CACHE_CHECK([whether rmdir works], [gl_cv_func_rmdir_works], [mkdir conftest.dir touch conftest.file AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include #if HAVE_UNISTD_H # include #else /* on Windows with MSVC */ # include #endif ]], [[int result = 0; if (!rmdir ("conftest.file/")) result |= 1; else if (errno != ENOTDIR) result |= 2; if (!rmdir ("conftest.dir/./")) result |= 4; return result; ]])], [gl_cv_func_rmdir_works=yes], [gl_cv_func_rmdir_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_rmdir_works="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_func_rmdir_works="guessing no" ;; # If we don't know, assume the worst. *) gl_cv_func_rmdir_works="guessing no" ;; esac ]) rm -rf conftest.dir conftest.file]) case "$gl_cv_func_rmdir_works" in *yes) ;; *) REPLACE_RMDIR=1 ;; esac ]) # safe-read.m4 serial 6 dnl Copyright (C) 2002-2003, 2005-2006, 2009-2018 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. # Prerequisites of lib/safe-read.c. AC_DEFUN([gl_PREREQ_SAFE_READ], [ AC_REQUIRE([gt_TYPE_SSIZE_T]) ]) # safe-write.m4 serial 4 dnl Copyright (C) 2002, 2005-2006, 2009-2018 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/safe-write.c. AC_DEFUN([gl_PREREQ_SAFE_WRITE], [ gl_PREREQ_SAFE_READ ]) # serial 10 dnl Copyright (C) 2002-2006, 2009-2018 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 Prerequisites for lib/save-cwd.c. AC_DEFUN([gl_SAVE_CWD], [ AC_CHECK_FUNCS_ONCE([fchdir]) ]) # setenv.m4 serial 27 dnl Copyright (C) 2001-2004, 2006-2018 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" ;; # If we don't know, assume the worst. *) gl_cv_func_setenv_works="guessing no" ;; 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, assume the worst. *) gl_cv_func_unsetenv_works="guessing no" ;; 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]) ]) # Check for setmode, DOS style. # Copyright (C) 2001-2002, 2011-2012 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 2, 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, write to the Free Software # Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, # USA. AC_DEFUN([AC_FUNC_SETMODE_DOS], [AC_CHECK_HEADERS([fcntl.h unistd.h]) AC_CACHE_CHECK([for DOS-style setmode], [ac_cv_func_setmode_dos], [AC_TRY_LINK( [#include #if HAVE_FCNTL_H # include #endif #if HAVE_UNISTD_H # include #endif], [int ret = setmode && setmode (1, O_BINARY);], [ac_cv_func_setmode_dos=yes], [ac_cv_func_setmode_dos=no])]) if test $ac_cv_func_setmode_dos = yes; then AC_DEFINE([HAVE_SETMODE_DOS], [1], [Define to 1 if you have the DOS-style `setmode' function.]) fi]) # signal_h.m4 serial 18 dnl Copyright (C) 2007-2018 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_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([$1]) ]) AC_DEFUN([gl_SIGNAL_H_DEFAULTS], [ GNULIB_PTHREAD_SIGMASK=0; AC_SUBST([GNULIB_PTHREAD_SIGMASK]) GNULIB_RAISE=0; AC_SUBST([GNULIB_RAISE]) GNULIB_SIGNAL_H_SIGPIPE=0; AC_SUBST([GNULIB_SIGNAL_H_SIGPIPE]) GNULIB_SIGPROCMASK=0; AC_SUBST([GNULIB_SIGPROCMASK]) GNULIB_SIGACTION=0; AC_SUBST([GNULIB_SIGACTION]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_POSIX_SIGNALBLOCKING=1; AC_SUBST([HAVE_POSIX_SIGNALBLOCKING]) HAVE_PTHREAD_SIGMASK=1; AC_SUBST([HAVE_PTHREAD_SIGMASK]) HAVE_RAISE=1; AC_SUBST([HAVE_RAISE]) HAVE_SIGSET_T=1; AC_SUBST([HAVE_SIGSET_T]) HAVE_SIGINFO_T=1; AC_SUBST([HAVE_SIGINFO_T]) HAVE_SIGACTION=1; AC_SUBST([HAVE_SIGACTION]) HAVE_STRUCT_SIGACTION_SA_SIGACTION=1; AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION]) HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1; AC_SUBST([HAVE_TYPE_VOLATILE_SIG_ATOMIC_T]) HAVE_SIGHANDLER_T=1; AC_SUBST([HAVE_SIGHANDLER_T]) REPLACE_PTHREAD_SIGMASK=0; AC_SUBST([REPLACE_PTHREAD_SIGMASK]) REPLACE_RAISE=0; AC_SUBST([REPLACE_RAISE]) ]) # size_max.m4 serial 10 dnl Copyright (C) 2003, 2005-2006, 2008-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. AC_DEFUN([gl_SIZE_MAX], [ AC_CHECK_HEADERS([stdint.h]) dnl First test whether the system already has SIZE_MAX. AC_CACHE_CHECK([for SIZE_MAX], [gl_cv_size_max], [ gl_cv_size_max= AC_EGREP_CPP([Found it], [ #include #if HAVE_STDINT_H #include #endif #ifdef SIZE_MAX Found it #endif ], [gl_cv_size_max=yes]) if test -z "$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]) ]) dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. dnl Remove this when we can assume autoconf >= 2.61. m4_ifdef([AC_COMPUTE_INT], [], [ AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])]) ]) # ssize_t.m4 serial 5 (gettext-0.18.2) dnl Copyright (C) 2001-2003, 2006, 2010-2018 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, 2009-2018 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 $ac_cv_typeof_struct_stat_st_atim_is_struct_timespec = yes; then AC_DEFINE([TYPEOF_STRUCT_STAT_ST_ATIM_IS_STRUCT_TIMESPEC], [1], [Define to 1 if the type of the st_atim member of a struct stat is struct timespec.]) fi], [AC_CHECK_MEMBERS([struct stat.st_atimespec.tv_nsec], [], [AC_CHECK_MEMBERS([struct stat.st_atimensec], [], [AC_CHECK_MEMBERS([struct stat.st_atim.st__tim.tv_nsec], [], [], [#include #include ])], [#include #include ])], [#include #include ])], [#include #include ]) ]) # Check for st_birthtime, a feature from UFS2 (FreeBSD, NetBSD, OpenBSD, etc.) # and NTFS (Cygwin). # There was a time when this field was named st_createtime (21 June # 2002 to 16 July 2002) But that window is very small and applied only # to development code, so systems still using that configuration are # not supported. See revisions 1.10 and 1.11 of FreeBSD's # src/sys/ufs/ufs/dinode.h. # AC_DEFUN([gl_STAT_BIRTHTIME], [ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_HEADERS_ONCE([sys/time.h]) AC_CHECK_MEMBERS([struct stat.st_birthtimespec.tv_nsec], [], [AC_CHECK_MEMBERS([struct stat.st_birthtimensec], [], [AC_CHECK_MEMBERS([struct stat.st_birthtim.tv_nsec], [], [], [#include #include ])], [#include #include ])], [#include #include ]) ]) # serial 14 # Copyright (C) 2009-2018 Free Software Foundation, Inc. # # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STAT], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_CHECK_FUNCS_ONCE([lstat]) case "$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 glibc systems. *-gnu* | gnu*) gl_cv_func_stat_file_slash="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_stat_file_slash="guessing no" ;; 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 $host_os in dnl Solaris stat can return a negative tv_nsec. solaris*) REPLACE_FSTAT=1 ;; esac ;; esac ]) # Prerequisites of lib/stat.c and lib/stat-w32.c. AC_DEFUN([gl_PREREQ_STAT], [ AC_REQUIRE([gl_HEADER_SYS_STAT_H]) : ]) # stdarg.m4 serial 6 dnl Copyright (C) 2006, 2008-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. dnl Provide a working va_copy in combination with . AC_DEFUN([gl_STDARG_H], [ STDARG_H='' NEXT_STDARG_H='' AC_MSG_CHECKING([for va_copy]) AC_CACHE_VAL([gl_cv_func_va_copy], [ AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[ #ifndef va_copy void (*func) (va_list, va_list) = va_copy; #endif ]])], [gl_cv_func_va_copy=yes], [gl_cv_func_va_copy=no])]) AC_MSG_RESULT([$gl_cv_func_va_copy]) if test $gl_cv_func_va_copy = no; then dnl Provide a substitute. dnl Usually a simple definition in is enough. Not so on AIX 5 dnl with some versions of the /usr/vac/bin/cc compiler. It has an dnl which does '#undef va_copy', leading to a missing va_copy symbol. For dnl this platform, we use an substitute. But we cannot use this dnl approach on other platforms, because often defines only dnl preprocessor macros and gl_ABSOLUTE_HEADER, gl_CHECK_NEXT_HEADERS do dnl not work in this situation. AC_EGREP_CPP([vaccine], [#if defined _AIX && !defined __GNUC__ AIX vaccine #endif ], [gl_aixcc=yes], [gl_aixcc=no]) if test $gl_aixcc = yes; then dnl Provide a substitute file. STDARG_H=stdarg.h gl_NEXT_HEADERS([stdarg.h]) dnl Fallback for the case when contains only macro definitions. if test "$gl_cv_next_stdarg_h" = '""'; then gl_cv_next_stdarg_h='"///usr/include/stdarg.h"' NEXT_STDARG_H="$gl_cv_next_stdarg_h" fi else dnl Provide a substitute in , either __va_copy or as a simple dnl assignment. gl_CACHE_VAL_SILENT([gl_cv_func___va_copy], [ AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include ]], [[ #ifndef __va_copy error, bail out #endif ]])], [gl_cv_func___va_copy=yes], [gl_cv_func___va_copy=no])]) if test $gl_cv_func___va_copy = yes; then AC_DEFINE([va_copy], [__va_copy], [Define as a macro for copying va_list variables.]) else AH_VERBATIM([gl_VA_COPY], [/* A replacement for va_copy, if needed. */ #define gl_va_copy(a,b) ((a) = (b))]) AC_DEFINE([va_copy], [gl_va_copy], [Define as a macro for copying va_list variables.]) fi fi fi AC_SUBST([STDARG_H]) AM_CONDITIONAL([GL_GENERATE_STDARG_H], [test -n "$STDARG_H"]) AC_SUBST([NEXT_STDARG_H]) ]) # Check for stdbool.h that conforms to C99. dnl Copyright (C) 2002-2006, 2009-2018 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 7 # Prepare for substituting if it is not supported. AC_DEFUN([AM_STDBOOL_H], [ AC_REQUIRE([AC_CHECK_HEADER_STDBOOL]) # Define two additional variables used in the Makefile substitution. if test "$ac_cv_header_stdbool_h" = yes; then STDBOOL_H='' else STDBOOL_H='stdbool.h' fi AC_SUBST([STDBOOL_H]) AM_CONDITIONAL([GL_GENERATE_STDBOOL_H], [test -n "$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 5 dnl Copyright (C) 2009-2018 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= AC_CHECK_TYPE([max_align_t], [], [HAVE_MAX_ALIGN_T=0; STDDEF_H=stddef.h], [[#include ]]) 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 51 dnl Copyright (C) 2001-2018 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_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 Check for long long int and unsigned long long int. AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) if test $ac_cv_type_long_long_int = yes; then HAVE_LONG_LONG_INT=1 else HAVE_LONG_LONG_INT=0 fi AC_SUBST([HAVE_LONG_LONG_INT]) AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) if test $ac_cv_type_unsigned_long_long_int = yes; then HAVE_UNSIGNED_LONG_LONG_INT=1 else HAVE_UNSIGNED_LONG_LONG_INT=0 fi AC_SUBST([HAVE_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 $ac_cv_header_sys_bitypes_h = yes; then HAVE_SYS_BITYPES_H=1 fi gl_STDINT_TYPE_PROPERTIES ;; esac dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH. LIMITS_H=limits.h AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$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 ]) dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in. dnl Remove this when we can assume autoconf >= 2.61. m4_ifdef([AC_COMPUTE_INT], [], [ AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])]) ]) # stdint_h.m4 serial 9 dnl Copyright (C) 1997-2004, 2006, 2008-2018 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 $gl_cv_header_stdint_h = yes; then AC_DEFINE_UNQUOTED([HAVE_STDINT_H_WITH_UINTMAX], [1], [Define if exists, doesn't clash with , and declares uintmax_t. ]) fi ]) # stdio_h.m4 serial 48 dnl Copyright (C) 2007-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_STDIO_H], [ AH_VERBATIM([MINGW_ANSI_STDIO], [/* Use GNU style printf and scanf. */ #ifndef __USE_MINGW_ANSI_STDIO # undef __USE_MINGW_ANSI_STDIO #endif ]) AC_DEFINE([__USE_MINGW_ANSI_STDIO]) AC_REQUIRE([gl_STDIO_H_DEFAULTS]) gl_NEXT_HEADERS([stdio.h]) dnl Determine whether __USE_MINGW_ANSI_STDIO makes printf and dnl inttypes.h behave like gnu instead of system; we must give our dnl printf wrapper the right attribute to match. AC_CACHE_CHECK([which flavor of printf attribute matches inttypes macros], [gl_cv_func_printf_attribute_flavor], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #define __STDC_FORMAT_MACROS 1 #include #include /* For non-mingw systems, compilation will trivially succeed. For mingw, compilation will succeed for older mingw (system printf, "I64d") and fail for newer mingw (gnu printf, "lld"). */ #if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) && \ (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) extern char PRIdMAX_probe[sizeof PRIdMAX == sizeof "I64d" ? 1 : -1]; #endif ]])], [gl_cv_func_printf_attribute_flavor=system], [gl_cv_func_printf_attribute_flavor=gnu])]) if test "$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_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 44 dnl Copyright (C) 2007-2018 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 # include #endif #if HAVE_RANDOM_H # include #endif ]], [_Exit atoll canonicalize_file_name getloadavg getsubopt grantpt initstate initstate_r 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 strtoll strtoull unlockpt unsetenv]) ]) 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_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_DECL_INITSTATE=1; AC_SUBST([HAVE_DECL_INITSTATE]) 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_DECL_SETSTATE=1; AC_SUBST([HAVE_DECL_SETSTATE]) HAVE_STRTOD=1; AC_SUBST([HAVE_STRTOD]) 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_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_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_STRTOD=0; AC_SUBST([REPLACE_STRTOD]) REPLACE_UNSETENV=0; AC_SUBST([REPLACE_UNSETENV]) REPLACE_WCTOMB=0; AC_SUBST([REPLACE_WCTOMB]) ]) # strdup.m4 serial 13 dnl Copyright (C) 2002-2018 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 $ac_cv_have_decl_strdup = no; then HAVE_DECL_STRDUP=0 fi ]) # Prerequisites of lib/strdup.c. AC_DEFUN([gl_PREREQ_STRDUP], [:]) # strerror.m4 serial 19 dnl Copyright (C) 2002, 2007-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_STRERROR], [ AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) AC_REQUIRE([gl_HEADER_ERRNO_H]) AC_REQUIRE([gl_FUNC_STRERROR_0]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles m4_ifdef([gl_FUNC_STRERROR_R_WORKS], [ AC_REQUIRE([gl_FUNC_STRERROR_R_WORKS]) ]) if test "$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" ;; # If we don't know, assume the worst. *) gl_cv_func_working_strerror="guessing no" ;; 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 "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_strerror_0_works="guessing yes" ;; # Guess yes on native Windows. mingw*) gl_cv_func_strerror_0_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_strerror_0_works="guessing no" ;; esac ]) ]) case "$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 ]) # Configure a GNU-like replacement for . # Copyright (C) 2007-2018 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 22 # 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([AC_C_RESTRICT]) 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_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]) ]) # strndup.m4 serial 22 dnl Copyright (C) 2002-2003, 2005-2018 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, 2009-2018 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], [:]) # serial 7 # See if we need to provide symlink replacement. dnl Copyright (C) 2009-2018 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 glibc systems. *-gnu* | gnu*) gl_cv_func_symlink_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_symlink_works="guessing no" ;; esac ]) rm -f conftest.f conftest.link conftest.lnk2]) case "$gl_cv_func_symlink_works" in *yes) ;; *) REPLACE_SYMLINK=1 ;; esac fi ]) # serial 8 # See if we need to provide symlinkat replacement. dnl Copyright (C) 2009-2018 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_SYMLINKAT], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_OPENAT]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_FUNCS_ONCE([symlinkat]) if test $ac_cv_func_symlinkat = no; then HAVE_SYMLINKAT=0 else AC_CACHE_CHECK([whether symlinkat handles trailing slash correctly], [gl_cv_func_symlinkat_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#include #include ]], [[int result = 0; if (!symlinkat ("a", AT_FDCWD, "conftest.link/")) result |= 1; if (symlinkat ("conftest.f", AT_FDCWD, "conftest.lnk2")) result |= 2; else if (!symlinkat ("a", AT_FDCWD, "conftest.lnk2/")) result |= 4; return result; ]])], [gl_cv_func_symlinkat_works=yes], [gl_cv_func_symlinkat_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu* | gnu*) gl_cv_func_symlinkat_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_symlinkat_works="guessing no" ;; esac ]) rm -f conftest.f conftest.link conftest.lnk2]) case "$gl_cv_func_symlinkat_works" in *yes) ;; *) REPLACE_SYMLINKAT=1 ;; esac fi ]) # sys_socket_h.m4 serial 23 dnl Copyright (C) 2005-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl From Simon Josefsson. AC_DEFUN([gl_HEADER_SYS_SOCKET], [ AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl On OSF/1, the functions recv(), send(), recvfrom(), sendto() have dnl old-style declarations (with return type 'int' instead of 'ssize_t') dnl unless _POSIX_PII_SOCKET is defined. case "$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_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 HAVE_WS2TCPIP_H=0 else HAVE_SYS_SOCKET_H=0 if test $ac_cv_header_ws2tcpip_h = yes; then HAVE_WS2TCPIP_H=1 else HAVE_WS2TCPIP_H=0 fi fi AC_SUBST([HAVE_SYS_SOCKET_H]) AC_SUBST([HAVE_WS2TCPIP_H]) ]) # 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]) ]) 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 31 -*- Autoconf -*- dnl Copyright (C) 2006-2018 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]) ]) # gl_HEADER_SYS_STAT_H 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_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, 2009-2018 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) 2011-2018 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 ]) ]) #serial 5 # Copyright (C) 2006-2007, 2009-2018 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. # glibc provides __gen_tempname as a wrapper for mk[ds]temp. Expose # it as a public API, and provide it on systems that are lacking. AC_DEFUN([gl_FUNC_GEN_TEMPNAME], [ gl_PREREQ_TEMPNAME ]) # Prerequisites of lib/tempname.c. AC_DEFUN([gl_PREREQ_TEMPNAME], [ : ]) # Configure a more-standard replacement for . # Copyright (C) 2000-2001, 2003-2007, 2009-2018 Free Software Foundation, Inc. # serial 11 # 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([AC_C_RESTRICT]) AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) gl_NEXT_HEADERS([time.h]) AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC]) ]) 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, 2006-2018 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], [], [], [[#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( [[#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 $gl_cv_time_r_posix = yes; then REPLACE_LOCALTIME_R=0 else REPLACE_LOCALTIME_R=1 fi else HAVE_LOCALTIME_R=0 fi ]) # Prerequisites of lib/time_r.c. AC_DEFUN([gl_PREREQ_TIME_R], [ : ]) dnl Time zone functions: tzalloc, localtime_rz, etc. dnl Copyright (C) 2015-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. dnl Written by Paul Eggert. AC_DEFUN([gl_TIME_RZ], [ AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) AC_REQUIRE([AC_STRUCT_TIMEZONE]) AC_CHECK_TYPES([timezone_t], [], [], [[#include ]]) if test "$ac_cv_type_timezone_t" = yes; then HAVE_TIMEZONE_T=1 fi ]) # timegm.m4 serial 12 dnl Copyright (C) 2003, 2007, 2009-2018 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_TIMEGM], [ AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) AC_REQUIRE([gl_FUNC_MKTIME_WORKS]) REPLACE_TIMEGM=0 AC_CHECK_FUNCS_ONCE([timegm]) if test $ac_cv_func_timegm = yes; then if test "$gl_cv_func_working_mktime" != yes; then # Assume that timegm is buggy if mktime is. REPLACE_TIMEGM=1 fi else HAVE_TIMEGM=0 fi ]) # Prerequisites of lib/timegm.c. AC_DEFUN([gl_PREREQ_TIMEGM], [ : ]) #serial 15 # Copyright (C) 2000-2001, 2003-2007, 2009-2018 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_TIMESPEC], [:]) # tm_gmtoff.m4 serial 3 dnl Copyright (C) 2002, 2009-2018 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_TM_GMTOFF], [ AC_CHECK_MEMBER([struct tm.tm_gmtoff], [AC_DEFINE([HAVE_TM_GMTOFF], [1], [Define if struct tm has the tm_gmtoff member.])], , [#include ]) ]) # serial 11 # Copyright (C) 2003, 2007, 2009-2018 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. # See if we have a working tzset function. # If so, arrange to compile the wrapper function. # For at least Solaris 2.5.1 and 2.6, this is necessary # because tzset can clobber the contents of the buffer # used by localtime. # Written by Paul Eggert and Jim Meyering. AC_DEFUN([gl_FUNC_TZSET], [ AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS]) AC_REQUIRE([gl_LOCALTIME_BUFFER_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_FUNCS_ONCE([tzset]) if test $ac_cv_func_tzset = no; then HAVE_TZSET=0 fi gl_FUNC_TZSET_CLOBBER REPLACE_TZSET=0 case "$gl_cv_func_tzset_clobber" in *yes) REPLACE_TZSET=1 AC_DEFINE([TZSET_CLOBBERS_LOCALTIME], [1], [Define if tzset clobbers localtime's static buffer.]) gl_LOCALTIME_BUFFER_NEEDED ;; esac case "$host_os" in mingw*) REPLACE_TZSET=1 ;; esac ]) # Set gl_cv_func_tzset_clobber. AC_DEFUN([gl_FUNC_TZSET_CLOBBER], [ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether tzset clobbers localtime buffer], [gl_cv_func_tzset_clobber], [AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include #include int main () { time_t t1 = 853958121; struct tm *p, s; putenv ("TZ=GMT0"); p = localtime (&t1); s = *p; putenv ("TZ=EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00"); tzset (); return (p->tm_year != s.tm_year || p->tm_mon != s.tm_mon || p->tm_mday != s.tm_mday || p->tm_hour != s.tm_hour || p->tm_min != s.tm_min || p->tm_sec != s.tm_sec); } ]])], [gl_cv_func_tzset_clobber=no], [gl_cv_func_tzset_clobber=yes], [case "$host_os" in # Guess all is fine on glibc systems. *-gnu* | gnu*) gl_cv_func_tzset_clobber="guessing no" ;; # Guess no on native Windows. mingw*) gl_cv_func_tzset_clobber="guessing no" ;; # If we don't know, assume the worst. *) gl_cv_func_tzset_clobber="guessing yes" ;; esac ]) ]) AC_DEFINE([HAVE_RUN_TZSET_TEST], [1], [Define to 1 if you have run the test for working tzset.]) ]) #serial 9 dnl Copyright (C) 2002, 2005-2006, 2009-2018 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_UNISTD_SAFER], [ AC_CHECK_FUNCS_ONCE([pipe]) ]) # unistd_h.m4 serial 71 dnl Copyright (C) 2006-2018 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 __WIN32__) && ! defined __CYGWIN__ # include # endif #endif ]], [chdir chown dup dup2 dup3 environ euidaccess faccessat fchdir fchownat fdatasync fsync ftruncate getcwd getdomainname getdtablesize getgroups gethostname getlogin getlogin_r getpagesize 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_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_CHDIR=0; AC_SUBST([GNULIB_CHDIR]) GNULIB_CHOWN=0; AC_SUBST([GNULIB_CHOWN]) GNULIB_CLOSE=0; AC_SUBST([GNULIB_CLOSE]) 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_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_GETPAGESIZE=0; AC_SUBST([GNULIB_GETPAGESIZE]) 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_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_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_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_TRUNCATE=1; AC_SUBST([HAVE_TRUNCATE]) 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_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_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_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]) ]) # unlink.m4 serial 12 dnl Copyright (C) 2009-2018 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_UNLINK], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_HEADERS_ONCE([unistd.h]) dnl Detect FreeBSD 7.2, AIX 7.1, Solaris 9 bug. AC_CACHE_CHECK([whether unlink honors trailing slashes], [gl_cv_func_unlink_honors_slashes], [touch conftest.file # Assume that if we have lstat, we can also check symlinks. if test $ac_cv_func_lstat = yes; then ln -s conftest.file conftest.lnk fi AC_RUN_IFELSE( [AC_LANG_PROGRAM( [[#if HAVE_UNISTD_H # include #else /* on Windows with MSVC */ # include #endif #include ]], [[int result = 0; if (!unlink ("conftest.file/")) result |= 1; else if (errno != ENOTDIR) result |= 2; #if HAVE_LSTAT if (!unlink ("conftest.lnk/")) result |= 4; else if (errno != ENOTDIR) result |= 8; #endif return result; ]])], [gl_cv_func_unlink_honors_slashes=yes], [gl_cv_func_unlink_honors_slashes=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu*) gl_cv_func_unlink_honors_slashes="guessing yes" ;; # Guess no on native Windows. mingw*) gl_cv_func_unlink_honors_slashes="guessing no" ;; # If we don't know, assume the worst. *) gl_cv_func_unlink_honors_slashes="guessing no" ;; esac ]) rm -f conftest.file conftest.lnk]) case "$gl_cv_func_unlink_honors_slashes" in *no) REPLACE_UNLINK=1 ;; esac dnl Detect Mac OS X 10.5.6 bug: On read-write HFS mounts, unlink("..") or dnl unlink("../..") succeeds without doing anything. AC_CACHE_CHECK([whether unlink of a parent directory fails as it should], [gl_cv_func_unlink_parent_fails], [case "$host_os" in darwin*) dnl Try to unlink a subdirectory of /tmp, because /tmp is usually on a dnl HFS mount on Mac OS X. Use a subdirectory, owned by the current dnl user, because otherwise unlink() may fail due to permissions dnl reasons, and because when running as root we don't want to risk dnl destroying the entire /tmp. if { # Use the mktemp program if available. If not available, hide the error # message. tmp=`(umask 077 && mktemp -d /tmp/gtXXXXXX) 2>/dev/null` && test -n "$tmp" && test -d "$tmp" } || { # Use a simple mkdir command. It is guaranteed to fail if the directory # already exists. $RANDOM is bash specific and expands to empty in shells # other than bash, ksh and zsh. Its use does not increase security; # rather, it minimizes the probability of failure in a very cluttered /tmp # directory. tmp=/tmp/gt$$-$RANDOM (umask 077 && mkdir "$tmp") }; then mkdir "$tmp/subdir" GL_SUBDIR_FOR_UNLINK="$tmp/subdir" export GL_SUBDIR_FOR_UNLINK AC_RUN_IFELSE( [AC_LANG_SOURCE([[ #include #if HAVE_UNISTD_H # include #else /* on Windows with MSVC */ # include # include #endif int main () { int result = 0; if (chdir (getenv ("GL_SUBDIR_FOR_UNLINK")) != 0) result |= 1; else if (unlink ("..") == 0) result |= 2; return result; } ]])], [gl_cv_func_unlink_parent_fails=yes], [gl_cv_func_unlink_parent_fails=no], [# If we don't know, assume the worst. gl_cv_func_unlink_parent_fails="guessing no" ]) unset GL_SUBDIR_FOR_UNLINK rm -rf "$tmp" else gl_cv_func_unlink_parent_fails="guessing no" fi ;; *) gl_cv_func_unlink_parent_fails="guessing yes" ;; esac ]) case "$gl_cv_func_unlink_parent_fails" in *no) REPLACE_UNLINK=1 AC_DEFINE([UNLINK_PARENT_BUG], [1], [Define to 1 if unlink() on a parent directory may succeed]) ;; esac ]) # unlinkat.m4 serial 2 dnl Copyright (C) 2004-2018 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 Jim Meyering. AC_DEFUN([gl_FUNC_UNLINKAT], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([unlinkat]) AC_REQUIRE([gl_FUNC_UNLINK]) AC_REQUIRE([gl_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK]) if test $ac_cv_func_unlinkat = no; then HAVE_UNLINKAT=0 else case "$gl_cv_func_lstat_dereferences_slashed_symlink" in *no) # Solaris 9 has *at functions, but uniformly mishandles trailing # slash in all of them. REPLACE_UNLINKAT=1 ;; *) # GNU/Hurd has unlinkat, but it has the same bug as unlink. # Darwin has unlinkat, but it has the same UNLINK_PARENT_BUG. if test $REPLACE_UNLINK = 1; then REPLACE_UNLINKAT=1 fi ;; esac fi ]) # utime.m4 serial 1 dnl Copyright (C) 2017-2018 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_UTIME], [ AC_REQUIRE([gl_UTIME_H_DEFAULTS]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_FUNCS_ONCE([utime]) if test $ac_cv_func_utime = no; then HAVE_UTIME=0 else case "$host_os" in mingw*) dnl On this platform, the original utime() or _utime() produces dnl timestamps that are affected by the time zone. REPLACE_UTIME=1 ;; esac fi ]) # Prerequisites of lib/utime.c. AC_DEFUN([gl_PREREQ_UTIME], [:]) # utime_h.m4 serial 1 dnl Copyright (C) 2017-2018 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_UTIME_H], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([gl_UTIME_H_DEFAULTS]) AC_CHECK_HEADERS_ONCE([utime.h]) gl_CHECK_NEXT_HEADERS([utime.h]) if test $ac_cv_header_utime_h = yes; then HAVE_UTIME_H=1 else HAVE_UTIME_H=0 fi AC_SUBST([HAVE_UTIME_H]) UTIME_H='' if test $ac_cv_header_utime_h != yes; then dnl Provide a substitute file. UTIME_H=utime.h else case "$host_os" in mingw*) dnl Need special handling of 'struct utimbuf'. UTIME_H=utime.h ;; esac fi AC_SUBST([UTIME_H]) AM_CONDITIONAL([GL_GENERATE_UTIME_H], [test -n "$UTIME_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 ]], [utime]) ]) AC_DEFUN([gl_UTIME_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_UTIME_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_UTIME_H_DEFAULTS], [ GNULIB_UTIME=0; AC_SUBST([GNULIB_UTIME]) dnl Assume POSIX behavior unless another module says otherwise. HAVE_UTIME=1; AC_SUBST([HAVE_UTIME]) REPLACE_UTIME=0; AC_SUBST([REPLACE_UTIME]) ]) dnl Copyright (C) 2003-2018 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 serial 8 AC_DEFUN([gl_UTIMENS], [ dnl Prerequisites of lib/utimens.c. AC_REQUIRE([gl_FUNC_UTIMES]) AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CHECK_FUNCS_ONCE([futimes futimesat futimens utimensat lutimes]) if test $ac_cv_func_futimens = no && test $ac_cv_func_futimesat = yes; then dnl FreeBSD 8.0-rc2 mishandles futimesat(fd,NULL,time). It is not dnl standardized, but Solaris implemented it first and uses it as dnl its only means to set fd time. AC_CACHE_CHECK([whether futimesat handles NULL file], [gl_cv_func_futimesat_works], [touch conftest.file AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #include #include ]], [[ int fd = open ("conftest.file", O_RDWR); if (fd < 0) return 1; if (futimesat (fd, NULL, NULL)) return 2; ]])], [gl_cv_func_futimesat_works=yes], [gl_cv_func_futimesat_works=no], [case "$host_os" in # Guess yes on glibc systems. *-gnu*) gl_cv_func_futimesat_works="guessing yes" ;; # If we don't know, assume the worst. *) gl_cv_func_futimesat_works="guessing no" ;; esac ]) rm -f conftest.file]) case "$gl_cv_func_futimesat_works" in *yes) ;; *) AC_DEFINE([FUTIMESAT_NULL_BUG], [1], [Define to 1 if futimesat mishandles a NULL file name.]) ;; esac fi ]) # serial 6 # See if we need to provide utimensat replacement. dnl Copyright (C) 2009-2018 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_UTIMENSAT], [ AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) AC_CHECK_FUNCS_ONCE([utimensat]) if test $ac_cv_func_utimensat = no; then HAVE_UTIMENSAT=0 else AC_CACHE_CHECK([whether utimensat works], [gl_cv_func_utimensat_works], [AC_RUN_IFELSE( [AC_LANG_PROGRAM([[ #include #include #include ]], [[int result = 0; const char *f = "conftest.file"; if (close (creat (f, 0600))) return 1; /* Test whether the AT_SYMLINK_NOFOLLOW flag is supported. */ { if (utimensat (AT_FDCWD, f, NULL, AT_SYMLINK_NOFOLLOW)) result |= 2; } /* Test whether UTIME_NOW and UTIME_OMIT work. */ { struct timespec ts[2]; ts[0].tv_sec = 1; ts[0].tv_nsec = UTIME_OMIT; ts[1].tv_sec = 1; ts[1].tv_nsec = UTIME_NOW; if (utimensat (AT_FDCWD, f, ts, 0)) result |= 4; } sleep (1); { struct stat st; struct timespec ts[2]; ts[0].tv_sec = 1; ts[0].tv_nsec = UTIME_NOW; ts[1].tv_sec = 1; ts[1].tv_nsec = UTIME_OMIT; if (utimensat (AT_FDCWD, f, ts, 0)) result |= 8; if (stat (f, &st)) result |= 16; else if (st.st_ctime < st.st_atime) result |= 32; } return result; ]])], [gl_cv_func_utimensat_works=yes], [gl_cv_func_utimensat_works=no], [gl_cv_func_utimensat_works="guessing yes"])]) if test "$gl_cv_func_utimensat_works" = no; then REPLACE_UTIMENSAT=1 fi fi ]) # Detect some bugs in glibc's implementation of utimes. # serial 5 dnl Copyright (C) 2003-2005, 2009-2018 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. # See if we need to work around bugs in glibc's implementation of # utimes from 2003-07-12 to 2003-09-17. # First, there was a bug that would make utimes set mtime # and atime to zero (1970-01-01) unconditionally. # Then, there was code to round rather than truncate. # Then, there was an implementation (sparc64, Linux-2.4.28, glibc-2.3.3) # that didn't honor the NULL-means-set-to-current-time semantics. # Finally, there was also a version of utimes that failed on read-only # files, while utime worked fine (linux-2.2.20, glibc-2.2.5). # # From Jim Meyering, with suggestions from Paul Eggert. AC_DEFUN([gl_FUNC_UTIMES], [ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles AC_CACHE_CHECK([whether the utimes function works], [gl_cv_func_working_utimes], [AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include #include #include #include #include #include #include #include #include #include static int inorder (time_t a, time_t b, time_t c) { return a <= b && b <= c; } int main () { int result = 0; char const *file = "conftest.utimes"; /* On OS/2, file timestamps must be on or after 1980 in local time, with an even number of seconds. */ static struct timeval timeval[2] = {{315620000 + 10, 10}, {315620000 + 1000000, 999998}}; /* Test whether utimes() essentially works. */ { struct stat sbuf; FILE *f = fopen (file, "w"); if (f == NULL) result |= 1; else if (fclose (f) != 0) result |= 1; else if (utimes (file, timeval) != 0) result |= 2; else if (lstat (file, &sbuf) != 0) result |= 1; else if (!(sbuf.st_atime == timeval[0].tv_sec && sbuf.st_mtime == timeval[1].tv_sec)) result |= 4; if (unlink (file) != 0) result |= 1; } /* Test whether utimes() with a NULL argument sets the file's timestamp to the current time. Use 'fstat' as well as 'time' to determine the "current" time, to accommodate NFS file systems if there is a time skew between the host and the NFS server. */ { int fd = open (file, O_WRONLY|O_CREAT, 0644); if (fd < 0) result |= 1; else { time_t t0, t2; struct stat st0, st1, st2; if (time (&t0) == (time_t) -1) result |= 1; else if (fstat (fd, &st0) != 0) result |= 1; else if (utimes (file, timeval) != 0 && (errno != EACCES /* OS/2 kLIBC utimes fails on opened files. */ || close (fd) != 0 || utimes (file, timeval) != 0 || (fd = open (file, O_WRONLY)) < 0)) result |= 2; else if (utimes (file, NULL) != 0 && (errno != EACCES /* OS/2 kLIBC utimes fails on opened files. */ || close (fd) != 0 || utimes (file, NULL) != 0 || (fd = open (file, O_WRONLY)) < 0)) result |= 8; else if (fstat (fd, &st1) != 0) result |= 1; else if (write (fd, "\n", 1) != 1) result |= 1; else if (fstat (fd, &st2) != 0) result |= 1; else if (time (&t2) == (time_t) -1) result |= 1; else { int m_ok_POSIX = inorder (t0, st1.st_mtime, t2); int m_ok_NFS = inorder (st0.st_mtime, st1.st_mtime, st2.st_mtime); if (! (st1.st_atime == st1.st_mtime)) result |= 16; if (! (m_ok_POSIX || m_ok_NFS)) result |= 32; } if (close (fd) != 0) result |= 1; } if (unlink (file) != 0) result |= 1; } /* Test whether utimes() with a NULL argument works on read-only files. */ { int fd = open (file, O_WRONLY|O_CREAT, 0444); if (fd < 0) result |= 1; else if (close (fd) != 0) result |= 1; else if (utimes (file, NULL) != 0) result |= 64; if (unlink (file) != 0) result |= 1; } return result; } ]])], [gl_cv_func_working_utimes=yes], [gl_cv_func_working_utimes=no], [case "$host_os" in # Guess no on native Windows. mingw*) gl_cv_func_working_utimes="guessing no" ;; *) gl_cv_func_working_utimes="guessing no" ;; esac ]) ]) case "$gl_cv_func_working_utimes" in *yes) AC_DEFINE([HAVE_WORKING_UTIMES], [1], [Define if utimes works properly.]) ;; esac ]) # vasnprintf.m4 serial 36 dnl Copyright (C) 2002-2004, 2006-2018 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 $ac_cv_func_vasnprintf = yes; then AC_DEFINE([REPLACE_VASNPRINTF], [1], [Define if vasnprintf exists but is overridden by gnulib.]) fi gl_PREREQ_PRINTF_ARGS gl_PREREQ_PRINTF_PARSE gl_PREREQ_VASNPRINTF gl_PREREQ_ASNPRINTF ]) # Prerequisites of lib/printf-args.h, lib/printf-args.c. AC_DEFUN([gl_PREREQ_PRINTF_ARGS], [ AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) AC_REQUIRE([gt_TYPE_WCHAR_T]) AC_REQUIRE([gt_TYPE_WINT_T]) ]) # Prerequisites of lib/printf-parse.h, lib/printf-parse.c. AC_DEFUN([gl_PREREQ_PRINTF_PARSE], [ AC_REQUIRE([gl_FEATURES_H]) AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) AC_REQUIRE([gt_TYPE_WCHAR_T]) AC_REQUIRE([gt_TYPE_WINT_T]) AC_REQUIRE([AC_TYPE_SIZE_T]) AC_CHECK_TYPE([ptrdiff_t], , [AC_DEFINE([ptrdiff_t], [long], [Define as the type of the result of subtracting two pointers, if the system doesn't define it.]) ]) AC_REQUIRE([gt_AC_TYPE_INTMAX_T]) ]) # Prerequisites of lib/vasnprintf.c. AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF], [ AC_REQUIRE([AC_FUNC_ALLOCA]) AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) AC_REQUIRE([gt_TYPE_WCHAR_T]) AC_REQUIRE([gt_TYPE_WINT_T]) AC_CHECK_FUNCS([snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb]) dnl Use the _snprintf function only if it is declared (because on NetBSD it dnl is defined as a weak alias of snprintf; we prefer to use the latter). AC_CHECK_DECLS([_snprintf], , , [[#include ]]) dnl Knowing DBL_EXPBIT0_WORD and DBL_EXPBIT0_BIT enables an optimization dnl in the code for NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE. AC_REQUIRE([gl_DOUBLE_EXPONENT_LOCATION]) dnl We can avoid a lot of code by assuming that snprintf's return value dnl conforms to ISO C99. So check that. AC_REQUIRE([gl_SNPRINTF_RETVAL_C99]) case "$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, 2009-2018 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], [ ]) # warn-on-use.m4 serial 5 dnl Copyright (C) 2010-2018 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) # --------------------------------------- # 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_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 13 dnl Copyright (C) 2008-2018 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++]) ]) 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) 2007-2018 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 42 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 $gt_cv_c_wint_t = yes; then HAVE_WINT_T=1 else HAVE_WINT_T=0 fi AC_SUBST([HAVE_WINT_T]) AC_REQUIRE([gl_TYPE_WINT_T_PREREQ]) dnl Check for declarations of anything we want to poison if the dnl corresponding gnulib module is not in use. gl_WARN_ON_USE_PREPARE([[ /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #if !(defined __GLIBC__ && !defined __UCLIBC__) # include # include # include #endif #include ]], [btowc wctob mbsinit mbrtowc mbrlen mbsrtowcs mbsnrtowcs wcrtomb wcsrtombs wcsnrtombs wcwidth wmemchr wmemcmp wmemcpy wmemmove wmemset wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat wcscmp wcsncmp wcscasecmp wcsncasecmp wcscoll wcsxfrm wcsdup wcschr wcsrchr wcscspn wcsspn wcspbrk wcsstr wcstok wcswidth wcsftime ]) ]) dnl Check whether is usable at all. AC_DEFUN([gl_WCHAR_H_INLINE_OK], [ dnl Test whether suffers due to the transition from '__inline' to dnl 'gnu_inline'. See dnl and . In summary, dnl glibc version 2.5 or older, together with gcc version 4.3 or newer and dnl the option -std=c99 or -std=gnu99, leads to a broken . AC_CACHE_CHECK([whether uses 'inline' correctly], [gl_cv_header_wchar_h_correct_inline], [gl_cv_header_wchar_h_correct_inline=yes AC_LANG_CONFTEST([ AC_LANG_SOURCE([[#define wcstod renamed_wcstod /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include extern int zero (void); int main () { return zero(); } ]])]) dnl Do not rename the object file from conftest.$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 "$save_ac_compile" | sed s/conftest/conftest1/` if AC_TRY_EVAL([ac_compile]); then AC_LANG_CONFTEST([ AC_LANG_SOURCE([[#define wcstod renamed_wcstod /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include int zero (void) { return 0; } ]])]) dnl See note above about renaming object files. ac_compile=`echo "$save_ac_compile" | sed s/conftest/conftest2/` if 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 conftest1.$ac_objext conftest2.$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]) ]) # wchar_t.m4 serial 4 (gettext-0.18.2) dnl Copyright (C) 2002-2003, 2008-2018 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 ]) # wctype_h.m4 serial 21 dnl A placeholder for ISO C99 , for platforms that lack it. dnl Copyright (C) 2006-2018 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_WCTYPE_H], [ AC_REQUIRE([gl_WCTYPE_H_DEFAULTS]) AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_FUNCS_ONCE([iswcntrl]) if test $ac_cv_func_iswcntrl = yes; then HAVE_ISWCNTRL=1 else HAVE_ISWCNTRL=0 fi AC_SUBST([HAVE_ISWCNTRL]) 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]) gl_CHECK_NEXT_HEADERS([wctype.h]) if test $ac_cv_header_wctype_h = yes; then if test $ac_cv_func_iswcntrl = yes; then dnl Linux libc5 has an iswprint function that returns 0 for all arguments. dnl The other functions are likely broken in the same way. AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works], [ AC_RUN_IFELSE( [AC_LANG_SOURCE([[ /* Tru64 with Desktop Toolkit C has a bug: must be included before . BSD/OS 4.0.1 has a bug: , and must be included before . */ #include #include #include #include #include int main () { return iswprint ('x') == 0; } ]])], [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no], [dnl Guess no on Linux libc5, yes otherwise. AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include #if __GNU_LIBRARY__ == 1 Linux libc5 i18n is broken. #endif]], [])], [gl_cv_func_iswcntrl_works="guessing yes"], [gl_cv_func_iswcntrl_works="guessing no"]) ]) ]) fi HAVE_WCTYPE_H=1 else HAVE_WCTYPE_H=0 fi AC_SUBST([HAVE_WCTYPE_H]) case "$gl_cv_func_iswcntrl_works" in *yes) REPLACE_ISWCNTRL=0 ;; *) REPLACE_ISWCNTRL=1 ;; esac AC_SUBST([REPLACE_ISWCNTRL]) if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then dnl Redefine all of iswcntrl, ..., iswxdigit in . : fi if test $REPLACE_ISWCNTRL = 1; then REPLACE_TOWLOWER=1 else AC_CHECK_FUNCS([towlower]) if test $ac_cv_func_towlower = yes; then REPLACE_TOWLOWER=0 else AC_CHECK_DECLS([towlower],,, [[/* 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 #if HAVE_WCTYPE_H # include #endif ]]) if test $ac_cv_have_decl_towlower = yes; then dnl On Minix 3.1.8, the system's declares towlower() and dnl towupper() although it does not have the functions. Avoid a dnl collision with gnulib's replacement. REPLACE_TOWLOWER=1 else REPLACE_TOWLOWER=0 fi fi fi AC_SUBST([REPLACE_TOWLOWER]) if test $HAVE_ISWCNTRL = 0 || test $REPLACE_TOWLOWER = 1; then dnl Redefine towlower, towupper in . : fi dnl We assume that the wctype() and iswctype() functions exist if and only dnl if the type wctype_t is defined in or in if that dnl exists. dnl HP-UX 11.00 declares all these in and lacks . AC_CACHE_CHECK([for wctype_t], [gl_cv_type_wctype_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 #if HAVE_WCTYPE_H # include #endif wctype_t a; ]], [[]])], [gl_cv_type_wctype_t=yes], [gl_cv_type_wctype_t=no]) ]) if test $gl_cv_type_wctype_t = no; then HAVE_WCTYPE_T=0 fi dnl We assume that the wctrans() and towctrans() functions exist if and only dnl if the type wctrans_t is defined in . AC_CACHE_CHECK([for wctrans_t], [gl_cv_type_wctrans_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 #include wctrans_t a; ]], [[]])], [gl_cv_type_wctrans_t=yes], [gl_cv_type_wctrans_t=no]) ]) if test $gl_cv_type_wctrans_t = no; then HAVE_WCTRANS_T=0 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([[ /* 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 # include #endif #include ]], [wctype iswctype wctrans towctrans ]) ]) AC_DEFUN([gl_WCTYPE_MODULE_INDICATOR], [ dnl Use AC_REQUIRE here, so that the default settings are expanded once only. AC_REQUIRE([gl_WCTYPE_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_WCTYPE_H_DEFAULTS], [ GNULIB_ISWBLANK=0; AC_SUBST([GNULIB_ISWBLANK]) GNULIB_WCTYPE=0; AC_SUBST([GNULIB_WCTYPE]) GNULIB_ISWCTYPE=0; AC_SUBST([GNULIB_ISWCTYPE]) GNULIB_WCTRANS=0; AC_SUBST([GNULIB_WCTRANS]) GNULIB_TOWCTRANS=0; AC_SUBST([GNULIB_TOWCTRANS]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE_ISWBLANK=1; AC_SUBST([HAVE_ISWBLANK]) HAVE_WCTYPE_T=1; AC_SUBST([HAVE_WCTYPE_T]) HAVE_WCTRANS_T=1; AC_SUBST([HAVE_WCTRANS_T]) REPLACE_ISWBLANK=0; AC_SUBST([REPLACE_ISWBLANK]) ]) # wint_t.m4 serial 7 dnl Copyright (C) 2003, 2007-2018 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]) ]) # write.m4 serial 6 dnl Copyright (C) 2008-2018 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_WRITE], [ 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_WRITE=1 fi ]) dnl This ifdef is just an optimization, to avoid performing a configure dnl check whose result is not used. It does not make the test of dnl GNULIB_UNISTD_H_SIGPIPE or GNULIB_SIGPIPE redundant. m4_ifdef([gl_SIGNAL_SIGPIPE], [ gl_SIGNAL_SIGPIPE if test $gl_cv_header_signal_h_SIGPIPE != yes; then REPLACE_WRITE=1 fi ]) m4_ifdef([gl_NONBLOCKING_IO], [ gl_NONBLOCKING_IO if test $gl_cv_have_nonblocking != yes; then REPLACE_WRITE=1 fi ]) ]) # Prerequisites of lib/write.c. AC_DEFUN([gl_PREREQ_WRITE], [:]) # xalloc.m4 serial 18 dnl Copyright (C) 2002-2006, 2009-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_XALLOC], [:]) # xattr.m4 - check for Extended Attributes (Linux) # serial 3 # Copyright (C) 2003, 2008-2012 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # Originally written by Andreas Gruenbacher. # http://www.suse.de/~agruen/coreutils/5.91/coreutils-xattr.diff AC_DEFUN([gl_FUNC_XATTR], [ AC_ARG_ENABLE([xattr], AC_HELP_STRING([--disable-xattr], [do not support extended attributes]), [use_xattr=$enableval], [use_xattr=yes]) LIB_XATTR= AC_SUBST([LIB_XATTR]) if test "$use_xattr" = "yes"; then AC_CHECK_HEADERS([attr/error_context.h attr/libattr.h]) use_xattr=no if test $ac_cv_header_attr_libattr_h = yes \ && test $ac_cv_header_attr_error_context_h = yes; then xattr_saved_LIBS=$LIBS AC_SEARCH_LIBS([attr_copy_file], [attr], [test "$ac_cv_search_attr_copy_file" = "none required" || LIB_XATTR=$ac_cv_search_attr_copy_file]) AC_CHECK_FUNCS([attr_copy_file attr_copy_action]) LIBS=$xattr_saved_LIBS if test $ac_cv_func_attr_copy_file = yes \ && test $ac_cv_func_attr_copy_action = yes; then use_xattr=yes fi fi if test $use_xattr = no; then AC_MSG_WARN([libattr development library was not found or not usable.]) AC_MSG_WARN([AC_PACKAGE_NAME will be built without xattr support.]) fi fi AC_DEFINE_UNQUOTED([USE_XATTR], [`test $use_xattr != yes; echo $?`], [Define if you want extended attribute support.]) ]) # xsize.m4 serial 5 dnl Copyright (C) 2003-2004, 2008-2018 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]) ]) # xstrndup.m4 serial 2 dnl Copyright (C) 2003, 2009-2018 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_XSTRNDUP], [ gl_PREREQ_XSTRNDUP ]) # Prerequisites of lib/xstrndup.c. AC_DEFUN([gl_PREREQ_XSTRNDUP], [ : ]) # xvasprintf.m4 serial 2 dnl Copyright (C) 2006, 2009-2018 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 Prerequisites of lib/xvasprintf.c. AC_DEFUN([gl_XVASPRINTF], [:])