# Copyright (C) 2002-2018 Free Software Foundation, Inc.
#      Original Makefile.sub written by Werner Lemberg <wl@gnu.org>
#      Automake migration by 
#      Bertrand Garrigues <bertrand.garrigues@laposte.net>
#
#
# This file is part of groff.
#
# groff is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# groff is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

doc_srcdir = $(abs_top_srcdir)/doc
doc_builddir = $(abs_top_builddir)/doc

DOC_SED = $(SED) -e "s;[@]VERSION[@];$(VERSION);"

DOC_GROFF_ONLY=\
  GROFF_COMMAND_PREFIX= \
  GROFF_BIN_PATH="$(GROFF_BIN_PATH)" \
  $(GROFFBIN) -I$(abs_top_builddir) -M $(doc_srcdir) \
	$(TFLAG) $(FFLAG) -Upet -ww 

DOC_GROFF = $(DOC_SED) $< | $(DOC_GROFF_ONLY)

# Other doc, installed in $(docdir)
if BUILD_OTHERDOC
# Files located in the source tree
DOCFILES= \
  doc/meref.me \
  doc/meintro.me \
  doc/meintro_fr.me \
  doc/pic.ms
# Files generated in the build tree
PROCESSEDDOCFILES = \
  doc/meref.ps \
  doc/meintro.ps \
  doc/meintro_fr.ps \
  doc/pic.ps

otherdocdir = $(docdir)
dist_otherdoc_DATA = $(DOCFILES)
nodist_otherdoc_DATA = $(PROCESSEDDOCFILES)
MOSTLYCLEANFILES += $(PROCESSEDDOCFILES)
else
EXTRA_DIST += $(DOCFILES)
endif

# pdf doc, written in mom and therefore using contrib/mom/mom.am
# definitions
EXTRA_DIST += doc/automake.mom
if BUILD_PDFDOC
docpdfdocdir = $(pdfdocdir)
nodist_docpdfdoc_DATA = doc/automake.pdf
MOSTLYCLEANFILES += doc/automake.pdf
endif
doc/automake.pdf: doc/automake.mom \
  groff troff gropdf pdfmom font/devpdf/build_font_files \
  contrib/mom/om.tmac

# GNU PIC html documentation, installed in $(htmldocdir)
# Other pic*.html files are installed by the local rule
if BUILD_HTML
HTMLDOCFILES = \
  doc/pic.html
htmlpicdir = $(htmldocdir)
htmlpic_DATA = $(HTMLDOCFILES)
HTMLDOCFILESALL = pic*.html
HTMLDOCIMAGEFILES = pic*
endif

# Examples files, installed in $(exampledir)

# source tree files
EXAMPLEFILES = \
  doc/webpage.ms \
  doc/groff.css \
  doc/grnexmpl.g \
  doc/grnexmpl.me

if BUILD_EXAMPLES
# Generated in the build tree
PROCESSEDEXAMPLEFILES = \
  doc/webpage.ps \
  doc/grnexmpl.ps
docexamplesdir = $(exampledir)
dist_docexamples_DATA = $(EXAMPLEFILES)
nodist_docexamples_DATA = $(PROCESSEDEXAMPLEFILES)
MOSTLYCLEANFILES += $(PROCESSEDEXAMPLEFILES)
else
EXTRA_DIST += $(EXAMPLEFILES)
endif

if BUILD_HTMLEXAMPLES
# webpage.html is generated, webpage*.html files are installed by the local rule.
HTMLEXAMPLEFILES = doc/webpage.html
HTMLEXAMPLEFILESALL = webpage*.html
HTMLEXAMPLEIMAGEFILES = webpage*
htmlexamplesdir = $(exampledir)
nodist_htmlexamples_DATA = $(HTMLEXAMPLEFILES)
endif

imagedir = img
htmldocimagedir = $(htmldocdir)/img
exampleimagedir = $(exampledir)/img

MOSTLYCLEANFILES += doc/examples.stamp

EXTRA_DIST += \
  doc/gnu.xpm \
  doc/fixinfo.sh \
  doc/txi-en.tex

SUFFIXES += .me .ms .ps .html .txt .texi .dvi .pdf .xhtml

# For simplicity, we always call preconv, grn, and eqn.
.me.txt:
	$(GROFF_V)$(MKDIR_P) `dirname $@` \
	&& $(DOC_GROFF) -k -Tutf8 -ge -me >$@
.me.ps:
	$(GROFF_V)$(MKDIR_P) `dirname $@` \
	&& $(DOC_GROFF) -k -Tps -ge -me >$@

.ms.html:
	$(GROFF_V)$(MKDIR_P) `dirname $@` \
	&& $(DOC_GROFF) -P-p -P-b -P-I`basename $< | sed -e 's|.ms$$||'` \
	                -P-D$(imagedir) -Thtml -ms >$@
.ms.txt:
	$(GROFF_V)$(MKDIR_P) `dirname $@` \
	&& $(DOC_GROFF) -Tascii -ms -mwww >$@
.ms.ps:
	$(GROFF_V)$(MKDIR_P) `dirname $@` \
	&& $(DOC_GROFF) -Tps -ms -mwww >$@

$(PROCESSEDEXAMPLEFILES): $(bin_PROGRAMS) $(prefixexecbin_PROGRAMS) gnu.eps
$(PROCESSEDEXAMPLEFILES): $(dist_devpsfont_DATA) $(nodist_devpsfont_DATA) $(hdtbltmac_DATA)
$(PROCESSEDEXAMPLEFILES): $(dist_tmac_DATA) $(nodist_tmac_DATA)
$(PROCESSEDDOCFILES): $(bin_PROGRAMS) $(prefixexecbin_PROGRAMS) gnu.eps

doc/pic.html: tmac/www.tmac
doc/pic.html: $(bin_PROGRAMS) $(prefixexecbin_PROGRAMS)
doc/pic.html: doc/examples.stamp
doc/pic.html: $(dist_devpsfont_DATA) $(nodist_devpsfont_DATA)
doc/pic.html: $(doc_srcdir)/pic.ms $(devhtmlfont_DATA)
	$(GROFF_V)$(MKDIR_P) $(doc_builddir) \
	&& cd $(doc_builddir) \
	&& $(DOC_SED) $(doc_srcdir)/pic.ms \
	   | $(DOC_GROFF_ONLY) -P-p -P-Ipic -P-D$(imagedir) -P-jpic \
	                       -Thtml -ms > pic.html

doc/examples.stamp: doc/groff.css
	@$(MKDIR_P) $(doc_builddir)
	test -f $(doc_builddir)/groff.css || cp $(doc_srcdir)/groff.css $(doc_builddir)
	echo timestamp > $@

doc/webpage.html: $(bin_PROGRAMS) $(prefixexecbin_PROGRAMS)
doc/webpage.html: doc/examples.stamp $(devhtmlfont_DATA)
doc/webpage.html: $(dist_devpsfont_DATA) $(nodist_devpsfont_DATA) 
doc/webpage.html: $(doc_srcdir)/webpage.ms gnu.eps $(doc_srcdir)/groff.css
	$(GROFF_V)$(MKDIR_P) doc \
	&& cd $(doc_builddir) \
	&& $(DOC_SED) $(doc_srcdir)/webpage.ms \
	   | $(DOC_GROFF_ONLY) -P-jwebpage -P-nrpb -P-Iwebpage \
	                       -P-D$(imagedir) -Thtml -ms > webpage.html

doc/grnexmpl.ps: doc/grnexmpl.me doc/grnexmpl.g

# Note that we remove groff.css only if out-of-source build tree
mostlyclean-local: mostlyclean_doc
mostlyclean_doc:
if BUILD_HTML
	if test -d $(doc_builddir); then \
	  cd $(doc_builddir) && \
	  for f in $(HTMLDOCFILESALL); do \
	    $(RM) $$f; \
	  done; \
	fi
	if test -d $(doc_builddir)/$(imagedir); then \
	  cd $(doc_builddir)/$(imagedir) && \
	  for f in $(HTMLDOCIMAGEFILES); do \
	    $(RM) $$f; \
	  done; \
	fi
endif
	if test $(top_builddir) != $(top_srcdir); then \
	  $(RM) $(top_builddir)/doc/groff.css; \
	fi

if BUILD_HTMLEXAMPLES
	if test -d $(doc_builddir); then \
	  cd $(doc_builddir) && \
	  for f in $(HTMLEXAMPLEFILESALL); do \
	    $(RM) $$f; \
	  done; \
	fi
	if test -d $(doc_builddir)/$(imagedir); then \
	  cd $(doc_builddir)/$(imagedir) && \
	  for f in $(HTMLEXAMPLEIMAGEFILES); do \
	    $(RM) $$f; \
	  done; \
	fi
endif

install-data-hook: install_doc_htmldoc
install_doc_htmldoc:
if BUILD_HTML
	cd $(doc_builddir) && \
	for f in `ls $(HTMLDOCFILESALL)`; do \
	  $(RM) $(DESTDIR)$(htmldocdir)/$$f; \
	  $(INSTALL_DATA) $$f $(DESTDIR)$(htmldocdir)/$$f; \
	done
	-test -d $(DESTDIR)$(htmldocimagedir) \
	  || $(mkinstalldirs) $(DESTDIR)$(htmldocimagedir)
	$(RM) $(DESTDIR)$(htmldocimagedir)/$(HTMLDOCIMAGEFILES)
	$(INSTALL_DATA) $(doc_builddir)/$(imagedir)/$(HTMLDOCIMAGEFILES) \
	  $(DESTDIR)$(htmldocimagedir)
endif

install-data-hook: install_doc_examples
install_doc_examples: gnu.eps
if BUILD_EXAMPLES
# Prefer gnu.eps in builddir over srcdir.
	d=.; test -f "gnu.eps" || d=$(doc_srcdir); \
	  $(RM) $(DESTDIR)$(exampledir)/gnu.eps; \
	  $(INSTALL_DATA) $$d/gnu.eps $(DESTDIR)$(exampledir)/gnu.eps
endif
if BUILD_HTMLEXAMPLES
	cd $(doc_builddir) && \
	for f in `ls $(HTMLEXAMPLEFILESALL)`; do \
	  $(RM) $(DESTDIR)$(exampledir)/$$f; \
	  $(INSTALL_DATA) $$f $(DESTDIR)$(exampledir)/$$f; \
	done
	-test -d $(DESTDIR)$(exampleimagedir) \
	  || $(mkinstalldirs) $(DESTDIR)$(exampleimagedir)
	$(RM) $(DESTDIR)$(exampleimagedir)/$(HTMLEXAMPLEIMAGEFILES)
	$(INSTALL_DATA) $(doc_builddir)/$(imagedir)/$(HTMLEXAMPLEIMAGEFILES) \
	  $(DESTDIR)$(exampleimagedir)
endif

uninstall-hook: uninstall_doc_examples uninstall_doc_htmldoc uninstall_mom
uninstall_doc_examples:
if BUILD_EXAMPLES
	$(RM) -f $(DESTDIR)$(exampledir)/gnu.eps
endif
if BUILD_HTMLEXAMPLES
	-test -d $(DESTDIR)$(docexamplesdir) && \
	cd $(DESTDIR)$(docexamplesdir) && \
	for f in $(HTMLEXAMPLEFILESALL); do \
	  $(RM) $$f; \
	done
	-test -d $(DESTDIR)$(docexamplesdir)/$(imagedir) && \
	cd $(DESTDIR)$(docexamplesdir)/$(imagedir) && \
	for f in $(HTMLEXAMPLEIMAGEFILES); do \
	  $(RM) $$f; \
	done
	-rmdir $(DESTDIR)$(docexamplesdir)/$(imagedir)
	-rmdir $(DESTDIR)$(docexamplesdir)
endif

uninstall_doc_htmldoc:
if BUILD_HTML
	-test -d $(DESTDIR)$(htmldocdir) && \
	cd $(DESTDIR)$(htmldocdir) && \
	for f in $(HTMLDOCFILESALL); do \
	  $(RM) $$f; \
	done
	-test -d $(DESTDIR)$(htmldocdir)/$(imagedir) && \
	cd $(DESTDIR)$(htmldocdir)/$(imagedir) && \
	for f in $(HTMLDOCIMAGEFILES); do \
	  $(RM) $$f; \
	done
	-rmdir $(DESTDIR)$(htmldocdir)/$(imagedir)
	-rmdir $(DESTDIR)$(htmldocdir)
endif

# Texinfo doc
#
# Users who want to print out the groff manual are expected to have a
# working TeX installation.  Note that texi2dvi properly honours the
# `MAKEINFO' environment variable.
#
# We can't use automake's facilities because the make dist target attempts to 
# generate a pdf version of groff.texi by invoking texi2dvi without the -e 
# option, which is needed to build this file.
# info_TEXINFOS = doc/groff.texi
# doc_groff_TEXINFOS = doc/fdl.texi
#
# Note that GNU standards require to install only info doc. Info doc
# can still be disabled by passing 
# --with-doc=<something else than info or yes> 
# to configure

all: build_infodoc
if BUILD_INFODOC
build_infodoc: doc/groff.info
groffinfodir = $(infodir)
groffpdfdir = $(infodir)
MOSTLYCLEANFILES += doc/groff.info doc/groff.info-2 doc/groff.info-2
doc/groff.info: $(doc_srcdir)/groff.texi
	@$(MKDIR_P) $(doc_builddir)
	LANG=C \
	LC_ALL=C \
	$(MAKEINFO) -o doc/groff.info --enable-encoding -I$(doc_srcdir) $(doc_srcdir)/groff.texi
else
build_infodoc:
endif
EXTRA_DIST += doc/groff.texi doc/fdl.texi

# GNU Make has a built-in variable TEXI2DVI but it is not the case of
# all 'make' implementation.  As it default to 'texi2dvi' we simply
# redefine it here.

TEXI2DVI = texi2dvi
texi2dvi_missing = no
# Rules to generate various doc files from .texi files.
.texi.txt:
	@$(MKDIR_P) $(doc_builddir)
	LANG=C \
	LC_ALL=C \
	$(MAKEINFO) --enable-encoding -I$(doc_srcdir) --plaintext -o $@ $<

.texi.dvi:
if HAVE_TEXI2DVI
	@$(MKDIR_P) $(doc_builddir)
	LANG=C \
	LC_ALL=C \
	TEXINPUTS="$(top_srcdir)/build-aux:$(TEXINPUTS)" \
	MAKEINFO='$(MAKEINFO) -I $(doc_srcdir)' \
	$(TEXI2DVI) -e --batch --build-dir=doc/`basename $@`.t2d -o $@ $<
else
	@echo "Program texi2dvi is missing, cannot generate dvi doc"; \
	exit 1
endif

.texi.pdf:
if HAVE_TEXI2DVI
	@$(MKDIR_P) $(doc_builddir)
	LANG=C \
	LC_ALL=C \
	TEXINPUTS="$(top_srcdir)/build-aux:$(TEXINPUTS)" \
	MAKEINFO='$(MAKEINFO) -I $(doc_srcdir)' \
	$(TEXI2DVI) -e --batch --pdf --build-dir=doc/`basename $@`.t2p -o $@ $<
else
	@echo "Program texi2dvi is missing, cannot generate pdf doc"; \
	exit 1
endif

# This will generate both html split into several files and html doc
# in a single file. If texinfo version < 5.0, we process the resulting
# (mono) .html file with fixinfo.sh du to a problem with blockquote
# closing (for example 5.6.1 Setting Registers, the 'Request'
# blockquote is not properly closed, see fixinfo.sh for more details
.texi.html:
	@$(MKDIR_P) $(doc_builddir)/
	LANG=C \
	LC_ALL=C \
	$(MAKEINFO) --html -I $(doc_srcdir) \
	  -o doc/`basename $@`.node $<
	LANG=C \
	LC_ALL=C \
	$(MAKEINFO) --html -I $(doc_srcdir) --no-split \
	  -o $@ $<
	if test "$(makeinfo_version_numeric)" -lt 5000; then \
	  echo "patching $@ with fixinfo.sh"; \
	  $(SHELL) $(doc_srcdir)/fixinfo.sh \
	    doc/`basename $@`.mono/`basename $@`; \
	fi

# Targets to make all the doc in all formats. These doc are not built
# by default. pdf, dvi, ps, html and their install equivalent
# install-pdf, install-dvi, install-ps, install-html are standard
# Automake targets.

if BUILD_INFODOC
doc: doc_all
doc_all: doc_txt dvi pdf html
doc_txt: doc/groff.txt
dvi: doc_dvi
doc_dvi: doc/groff.dvi
pdf: doc_pdf
doc_pdf: doc/groff.pdf
html: doc_html
doc_html: doc/groff.html
install-doc: install-pdf install-html
endif

distclean-local: clean_infodoc clean_otherdoc
maintainer-clean-local: clean_infodoc clean_otherdoc
clean_infodoc:
	-$(RM) $(doc_builddir)/groff.info*
	-$(RM) $(doc_builddir)/groff.pdf
	-$(RM) $(doc_builddir)/groff.dvi
	-$(RM) -r $(doc_builddir)/groff.html.*
clean_otherdoc:
	-cd $(doc_builddir) && \
	  $(RM) -r *.pdf *.html *.txt *.dvi *.t2p *.t2d

install-data-local: install_infodoc
if BUILD_INFODOC
install_infodoc: doc/groff.info
	-test -d $(DESTDIR)$(infodir) || $(mkinstalldirs) $(DESTDIR)$(infodir)
	  for p in doc/groff.info `ls doc/groff.info*`; do \
	    f=`basename $$p`; \
	    $(RM) $(DESTDIR)$(infodir)/$$f; \
	    $(INSTALL_DATA) $$p $(DESTDIR)$(infodir)/$$f; \
	  done
	$(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) \
	  $(DESTDIR)$(infodir)/groff.info
install-pdf-local: doc/groff.pdf
	-test -d $(DESTDIR)$(pdfdocdir) || $(mkinstalldirs) $(DESTDIR)$(pdfdocdir)
	cp $(top_builddir)/doc/groff.pdf $(DESTDIR)$(pdfdocdir)
install-html-local: doc/groff.html
	-test -d $(DESTDIR)$(htmldocdir)/groff.html.mono || $(mkinstalldirs) $(DESTDIR)$(htmldocdir)/groff.html.mono
	cp -r $(top_builddir)/doc/groff.html $(DESTDIR)$(htmldocdir)/groff.html.mono
	cp -r $(top_builddir)/doc/groff.html.node $(DESTDIR)$(htmldocdir)
else
install_infodoc:
endif

uninstall-local: uninstall_infodoc uninstall-pdf uninstall-html
uninstall_doc: uninstall-local
uninstall-doc: uninstall-local
uninstall_infodoc:
if BUILD_INFODOC
	-$(INSTALL_INFO) --remove --info-dir=$(DESTDIR)$(infodir) \
	  $(DESTDIR)$(infodir)/groff.info
	-for f in `ls $(DESTDIR)$(infodir)/groff.info*`; do \
	  $(RM) $$f; \
	done
endif
uninstall-pdf:
if BUILD_INFODOC
	-$(RM) -f $(DESTDIR)$(pdfdocdir)/groff.pdf 
endif
uninstall-html:
if BUILD_INFODOC
	-$(RM) -r $(DESTDIR)$(htmldocdir)/groff.html.*
endif

# File used by contrib/hdtbl and contrib/pdfmark. It is distributed in
# doc.eps. We try in priority to use the file in 'doc'.
EXTRA_DIST += doc/gnu.xpm
MOSTLYCLEANFILES += gnu.eps
gnu.eps:
	echo $(XPMTOPPM)
	if test -f $(top_srcdir)/doc/gnu.eps; then \
	  cp $(top_srcdir)/doc/gnu.eps . ; \
	elif test -f $(top_builddir)/doc/gnu.eps; then \
	  cp $(top_builddir)/doc/gnu.eps . ; \
	else \
	  if test ""$(XPMTOPPM) != "found"; then \
	    echo "Program xpmtoppm is missing, can't generate gnu.eps" ; \
	    exit 1; \
	  fi; \
	  if test ""$(pnmtops) != "found"; then \
	    echo "Program pnmtops is missing, can't generate gnu.eps" ; \
	    exit 1; \
	  fi; \
	  if test "$(pnmtops_nosetpage)" != "pnmtops -nosetpage"; then \
	    echo "Program pnmtops can't handle -nosetpage, can't generate gnu.eps" ; \
	    exit 1; \
	  fi; \
	  xpmtoppm $(top_srcdir)/doc/gnu.xpm | pnmdepth 15 \
	    | $(pnmtops_nosetpage) -noturn -rle >$@ ; \
	fi

# Copy gnu.eps in 'doc' directory
dist-hook: dist-gnueps
dist-gnueps:
	chmod u+w $(distdir)/doc
	cp -f gnu.eps $(distdir)/doc


########################################################################
### Emacs settings
# Local Variables:
# mode: makefile-automake
# End: