From 2443dd94c6f45310878125aaf9a04f76116c20cf Mon Sep 17 00:00:00 2001
From: Stefan Schantl <stefan.schantl@ipfire.org>
Date: Tue, 9 Sep 2014 22:33:53 +0200
Subject: [PATCH] Add support for generating manpages.

---
 Makefile.am  | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 configure.ac | 12 +++++++++++
 2 files changed, 71 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index fbf4bc1..0ee85ae 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -37,6 +37,7 @@ configsdir = $(sysconfdir)/ddns
 CLEANFILES =
 DISTCLEANFILES =
 EXTRA_DIST =
+noinst_DATA =
 
 @INTLTOOL_POLICY_RULE@
 
@@ -46,6 +47,12 @@ update-po:
 
 # ------------------------------------------------------------------------------
 
+AM_V_XSLT   = $(AM_V_XSLT_$(V))
+AM_V_XSLT_  = $(AM_V_XSLT_$(AM_DEFAULT_VERBOSITY))
+AM_V_XSLT_0 = @echo "  XSLT    " $@;
+
+# ------------------------------------------------------------------------------
+
 dist_doc_DATA = \
 	COPYING
 
@@ -75,6 +82,58 @@ ddnsdir = $(pythondir)/ddns
 
 # ------------------------------------------------------------------------------
 
+if ENABLE_MANPAGES
+MANPAGES = \
+	man/ddns.1 \
+	man/ddns.conf.5
+
+MANPAGES_XML  = $(patsubst %.1,%.xml,$(patsubst %.5,%.xml,$(MANPAGES)))
+MANPAGES_HTML = $(patsubst %.xml,%.html,$(MANPAGES_XML))
+
+man: $(MANPAGES) $(MANPAGES_HTML)
+
+man_MANS = \
+	$(MANPAGES)
+
+noinst_DATA += \
+	$(MANPAGES_HTML)
+
+CLEANFILES += \
+	$(man_MANS) \
+	$(MANPAGES_HTML)
+
+EXTRA_DIST += \
+	$(MANPAGES_XML) \
+	man/custom-html.xsl
+
+XSLTPROC_FLAGS = \
+	--nonet \
+	--stringparam man.output.quietly 1 \
+	--stringparam funcsynopsis.style ansi \
+	--stringparam man.th.extra1.suppress 1 \
+	--stringparam man.authors.section.enabled 1 \
+	--stringparam man.copyright.section.enabled 1
+
+XSLTPROC_COMMAND_MAN = \
+	$(AM_V_XSLT)$(XSLTPROC) -o $@ $(XSLTPROC_FLAGS) \
+		http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl $<
+
+XSLTPROC_COMMAND_HTML = \
+	$(AM_V_XSLT)$(XSLTPROC) -o $@ $(XSLTPROC_FLAGS) $(srcdir)/man/custom-html.xsl $<
+
+man/%.1: man/%.xml
+	$(XSLTPROC_COMMAND_MAN)
+
+man/%.5: man/%.xml
+	$(XSLTPROC_COMMAND_MAN)
+
+man/%.html: man/%.xml man/custom-html.xsl
+	$(XSLTPROC_COMMAND_HTML)
+
+endif
+
+# ------------------------------------------------------------------------------
+
 substitutions = \
 	'|PACKAGE_NAME=$(PACKAGE_NAME)|' \
 	'|PACKAGE_VERSION=$(PACKAGE_VERSION)|' \
diff --git a/configure.ac b/configure.ac
index 4199a19..2d4c568 100644
--- a/configure.ac
+++ b/configure.ac
@@ -51,6 +51,8 @@ AC_PROG_LN_S
 AC_PROG_MKDIR_P
 AC_PROG_SED
 
+AC_PATH_PROG([XSLTPROC], [xsltproc])
+
 # Python
 AM_PATH_PYTHON([2.7])
 
@@ -62,6 +64,14 @@ fi
 
 save_LIBS="$LIBS"
 
+# ------------------------------------------------------------------------------
+have_manpages=no
+AC_ARG_ENABLE(manpages, AS_HELP_STRING([--disable-manpages], [disable manpages]))
+AS_IF([test "x$enable_manpages" != xno], [have_manpages=yes])
+AM_CONDITIONAL(ENABLE_MANPAGES, [test "x$have_manpages" = "xyes"])
+
+# ------------------------------------------------------------------------------
+
 AC_CONFIG_FILES([
 	Makefile
 	po/Makefile.in
@@ -76,4 +86,6 @@ AC_MSG_RESULT([
 	sysconfdir        : ${sysconfdir}
 
 	nsupdate          : ${NSUPDATE}
+
+	Generate manpages : ${have_manpages}
 ])
-- 
2.39.2