Added rules for generating website documentation.

@@ -48,3 +48,124 @@ SUFFIXES=.c .inc
 
 DISTCLEANFILES=*.pgs
 MAINTAINERCLEANFILES=$(INCFILES)
+
+## Web documentation
+BASE_URL="http://www.gnu.org/software/mailutils/manual"
+TEXI2HTML=${SHELL} `cd $(top_srcdir); pwd`/missing --run texi2html
+DVIPS=${SHELL} `cd $(top_srcdir); pwd`/missing --run dvips
+INFO=${SHELL} `cd $(top_srcdir); pwd`/missing --run info
+EXTRA_DIST = index.html.in
+
+html: html_mono html_node html_chapter
+
+html_node:
+	texi2html="$(TEXI2HTML)";\
+	if ! test -d html_node; then mkdir html_node; fi; \
+	cd html_node; \
+	$$texi2html -menu -split_node ../mailutils.texi
+
+html_chapter:
+	texi2html="$(TEXI2HTML)";\
+	if ! test -d html_chapter; then mkdir html_chapter; fi; \
+	cd html_chapter; \
+	$$texi2html -menu -split_chapter ../mailutils.texi
+
+html_mono:
+	texi2html="$(TEXI2HTML)";\
+	if ! test -d html_mono; then mkdir html_mono; fi; \
+	cd html_mono; \
+	$$texi2html -menu -monolithic ../mailutils.texi
+
+ps: mailutils.ps
+
+mailutils.ps: mailutils.dvi
+	$(DVIPS) -omailutils.ps mailutils.dvi
+
+text: mailutils.text
+
+mailutils.text: mailutils.info
+	$(INFO) --node=Top --subnodes --out mailutils.text -f mailutils.info
+
+mailutils.info.tar.gz:
+	tar cfz mailutils.info.tar.gz mailutils.info*
+
+mailutils.dvi.gz: mailutils.dvi
+	gzip -c mailutils.dvi > mailutils.dvi.gz
+
+mailutils.ps.gz: mailutils.ps
+	gzip -c mailutils.ps > mailutils.ps.gz
+
+mailutils.texi.tar.gz:
+	tar cfz mailutils.texi.tar.gz *.texi
+
+WEB_HTML=\
+ html_mono\
+ html_node\
+ html_chapter
+
+WEB_BIN=\
+ mailutils.info.tar.gz\
+ mailutils.dvi.gz\
+ mailutils.ps.gz\
+ mailutils.texi.tar.gz\
+ mailutils.text
+
+CLEANFILES = $(WEB_BIN)
+clean-local:
+	rm -rf $(WEB_HTML)
+
+WEBDOC=$(WEB_HTML) $(WEB_BIN) 
+
+webdocdir: $(WEBDOC) index.html
+	if ! test -d $(WEBDOCDIR); then mkdir $(WEBDOCDIR); fi; \
+	here=`cd $(srcdir) && pwd`; \
+	webdocdir=`cd $(WEBDOCDIR) && pwd`; \
+	for file in $(WEB_HTML) index.html; do \
+	  if test -d $$here/$$file; then \
+	    cp -pr $$here/$$file $$webdocdir/$$file; \
+	  else \
+	    test -f $$webdocdir/$$file \
+	    || ln $$here/$$file $$webdocdir/$$file 2> /dev/null \
+	    || cp -p $$here/$$file $$webdocdir/$$file || :; \
+	  fi; \
+	done; \
+	if ! test -d $(WEBDOCDIR)/other; then mkdir $(WEBDOCDIR)/other; fi;\
+	for file in $(WEB_BIN); do \
+	  if test -d $$here/$$file; then \
+	    cp -pr $$here/$$file $$webdocdir/other/$$file; \
+	  else \
+	    test -f $$webdocdir/other/$$file \
+	    || ln $$here/$$file $$webdocdir/other/$$file 2> /dev/null \
+	    || cp -p $$here/$$file $$webdocdir/other/$$file || :; \
+	  fi; \
+	done
+
+index.html: index.html.in $(WEBDOC)
+	@echo "s^%BASE_URL%^$(BASE_URL)^;" > .webdoc
+	@echo "s/%DATE%/`date`/;" >> .webdoc
+	@echo "s/%UPDATED%/`date +'%B, %d'`/;" >> .webdoc
+	@echo "s/%PACKAGE_NAME%/$(PACKAGE_NAME)/" >> .webdoc
+	@echo "s/%PACKAGE%/$(PACKAGE)/" >> .webdoc
+	@echo "s/%VERSION%/$(VERSION)/" >> .webdoc
+	@for file in `sed -n 's,.*"other/%PACKAGE%\(.*\)".*,$(PACKAGE)\1,pg;s,.*"\(.*\)%PACKAGE%\(.*\)".*,\1$(PACKAGE)\2,pg' index.html.in`; \
+	do\
+		ls -sk $$file; \
+	done |\
+         $(AWK) -vPACKAGE=$(PACKAGE) \
+                'BEGIN { len = length(PACKAGE) } \
+                 { gsub("\\.", "_", $$2); \
+                   if (match($$2,"/")) \
+                       $$2=substr($$2,RSTART+1); \
+                   print "s/%" toupper(substr($$2,len+2)) "_SIZE%/" $$1 "/;" }' >> .webdoc
+	sed -f .webdoc index.html.in > index.html
+	rm -f .webdoc
+
+webdocname=$(PACKAGE)-$(VERSION)-doc
+WEBDOCDIR=$(webdocname)
+
+webdoc: $(WEBDOC) index.html
+	$(MAKE) WEBDOCDIR=$(top_builddir)/doc/texinfo/$(webdocname) webdocdir
+	cd $(top_builddir)/doc/texinfo &&\
+	tar cfz $(webdocname).tar.gz $(webdocname) &&\
+	rm -r $(webdocname)
+## End of webdoc