added new style for doxygen documentation

doc/Makefile.am

@@ -1,13 +1,26 @@
 if DBUS_DOXYGEN_DOCS_ENABLED
 
+.PHONY: doc
+
+PACKAGE_DOCNAME = $(PACKAGE_TARNAME)-$(PACKAGE_VERSION)-doc
+
 EXTRA_DIST = Doxyfile.in
 
-noinst_PROGRAMS = index.html
+doc-clean:
+	rm -rf html/ $(top_builddir)/$(PACKAGE_DOCNAME).tar*
 
-index_html_SOURCES = Doxyfile
+all: doc-clean
+	doxygen
+	cp $(srcdir)/img/* html/
+	rm -rf $(PACKAGE_DOCNAME).tar*
+	mkdir -p $(PACKAGE_DOCNAME)/doc
+	cp -R html/ $(PACKAGE_DOCNAME)/doc
+	tar cf $(PACKAGE_DOCNAME).tar $(PACKAGE_DOCNAME)/
+	bzip2 -9 $(PACKAGE_DOCNAME).tar
+	rm -rf $(PACKAGE_DOCNAME)/
+	mv $(PACKAGE_DOCNAME).tar.bz2 $(top_builddir)
 
-index.html: Doxyfile
-	doxygen Doxyfile
+clean-local: doc-clean
 
 endif