From 21e73c2597da30e6e5b0acb808cd27fb21e8bbbd Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Wed, 17 Aug 2011 19:33:06 +0200
Subject: [PATCH] Integrate doxygen documentation building into
 autoconf/automake process

---
 Makefile.am  | 38 ++++++++++++++++++++++++++++++++++++++
 configure.ac |  3 +++
 doc/.empty   |  0
 3 files changed, 41 insertions(+)
 create mode 100644 doc/.empty

diff --git a/Makefile.am b/Makefile.am
index d7a8fb771..6cb39eaac 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -14,3 +14,41 @@ dist-hook:
 	echo $(VERSION) > $(distdir)/.tarball-version
 
 EXTRA_DIST = git-version-gen
+
+if HAVE_DOXYGEN
+
+docdir=$(datadir)/doc
+pkgdocdir=$(docdir)/$(PACKAGE)-$(VERSION)
+doc_htmldir=$(pkgdocdir)/html
+
+doc_html_DATA = $(top_builddir)/doc/html.tar
+
+$(doc_html_DATA): $(top_builddir)/doc/core/html/index.html \
+		  $(top_builddir)/doc/gsm/html/index.html \
+		  $(top_builddir)/doc/vty/html/index.html \
+		  $(top_builddir)/doc/codec/html/index.html
+	cd $(top_builddir)/doc && tar cf html.tar *
+
+$(top_builddir)/doc/core/html/index.html: $(SOURCES) Doxyfile
+	rm -rf doc/core
+	$(DOXYGEN) Doxyfile
+
+$(top_builddir)/doc/gsm/html/index.html: $(SOURCES) Doxyfile.gsm
+	rm -rf doc/gsm
+	$(DOXYGEN) Doxyfile.gsm
+
+$(top_builddir)/doc/vty/html/index.html: $(SOURCES) Doxyfile.vty
+	rm -rf doc/vty
+	$(DOXYGEN) Doxyfile.vty
+
+$(top_builddir)/doc/codec/html/index.html: $(SOURCES) Doxyfile.codec
+	rm -rf doc/vty
+	$(DOXYGEN) Doxyfile.codec
+
+install-data-hook:
+	cd $(DESTDIR)$(doc_htmldir) && tar xf html.tar && rm -f html.tar
+
+uninstall-hook:
+	cd $(DESTDIR)$(doc_htmldir) && rm -f *
+
+endif
diff --git a/configure.ac b/configure.ac
index b95c8cc0d..a77e3e89e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -20,6 +20,9 @@ dnl checks for header files
 AC_HEADER_STDC
 AC_CHECK_HEADERS(execinfo.h sys/select.h sys/socket.h syslog.h ctype.h)
 
+AC_PATH_PROG(DOXYGEN,doxygen,false)
+AM_CONDITIONAL(HAVE_DOXYGEN, test $DOXYGEN != false)
+
 # The following test is taken from WebKit's webkit.m4
 saved_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -fvisibility=hidden "
diff --git a/doc/.empty b/doc/.empty
new file mode 100644
index 000000000..e69de29bb