Build ZRTP docs with automake

Modified-by: Travis Cross <tc@traviscross.com>
Signed-off-by: Travis Cross <tc@traviscross.com>

libs/libzrtp/.gitignore

 # -*- mode:conf -*-
 /.cproject
 /.project
+/.stamp-doc
 /Makefile
 /Makefile.in
 /_configs.sed
@@ -10,6 +11,8 @@
 /config.*
 /config/*
 /configure
+/doc/Doxyfile
+/doc/out
 /include/zrtp_config_unix.h
 !/build/Makefile.am
 !/build/test/Makefile.am

libs/libzrtp/Makefile.am

@@ -52,6 +52,13 @@ endif
 SUBDIRS =  third_party/bnlib
 SUBDIRS += build
 
+if HAVE_DOXYGEN
+doc: .stamp-doc
+.stamp-doc:
+	(cd doc && $(DOXYGEN) Doxyfile)
+	touch $@
+endif
+
 uninstall:
 	rm -rf $(prefix)/include/libzrtp
 	rm -f $(prefix)/lib/libzrtp.a

libs/libzrtp/configure.in

@@ -92,5 +92,17 @@ fi
 
 AC_SUBST(ENABLE_EC)
 
+#
+# Documentation
+#
+AC_CHECK_PROGS([DOXYGEN], [doxygen])
+if test -z "$DOXYGEN";
+   then AC_MSG_WARN([Doxygen not found - continuing without Doxygen support])
+fi
+
+AM_CONDITIONAL([HAVE_DOXYGEN], 
+[test -n "$DOXYGEN"])AM_COND_IF([HAVE_DOXYGEN], [AC_CONFIG_FILES([doc/Doxyfile])])
+
+#
 # Genearte Makefiles
 AC_OUTPUT([Makefile build/Makefile build/test/Makefile])

libs/libzrtp/doc/doxygen.css

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libs/libzrtp/doc/footer.html

-<hr size="1"><address style="text-align: right;"><small>
-Generated on $datetime for $projectname &nbsp;<a href="http://www.zfoneproject.com"><img src="zfone.jpg" alt="zfone" align="middle" border="0"></a> </small></address>
-</body>
-</html>

libs/libzrtp/doc/header.html

-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
-<title>$title</title>
-<link href="$relpath$tabs.css" rel="stylesheet" type="text/css">
-<link href="$relpath$doxygen.css" rel="stylesheet" type="text/css">
-</head><body>