tag: Add gobject-introspection support

gst-libs/gst/tag/Makefile.am

@@ -12,3 +12,38 @@ libgsttag_@GST_MAJORMINOR@_la_LIBADD = $(GST_BASE_LIBS) $(GST_LIBS)
 libgsttag_@GST_MAJORMINOR@_la_LDFLAGS = $(GST_LIB_LDFLAGS) $(GST_ALL_LDFLAGS) $(GST_LT_LDFLAGS)
 
 noinst_HEADERS = gsttageditingprivate.h
+
+if HAVE_INTROSPECTION
+BUILT_GIRSOURCES = GstTag-@GST_MAJORMINOR@.gir
+
+gir_headers=$(patsubst %,$(srcdir)/%, $(libgsttaginclude_HEADERS))
+gir_sources=$(patsubst %,$(srcdir)/%, $(libgsttag_@GST_MAJORMINOR@_la_SOURCES))
+gir_cincludes=$(patsubst %,--c-include='gst/audio/%',$(libgsttainclude_HEADERS))
+
+GstTag-@GST_MAJORMINOR@.gir: $(INTROSPECTION_SCANNER) libgsttag-@GST_MAJORMINOR@.la
+	$(INTROSPECTION_SCANNER) -v --namespace GstTag \
+		--nsversion=@GST_MAJORMINOR@ \
+		$(gir_cincludes) \
+		--add-include-path=`$(PKG_CONFIG) --variable=libdir gstreamer-0.10`/gst \
+		--library=gsttag-0.10 \
+		--include=Gst-0.10 \
+		--libtool="$(top_builddir)/libtool" \
+		--pkg gstreamer-0.10 \
+		--output $@ \
+		$(gir_headers) \
+		$(gir_sources)
+
+# INTROSPECTION_GIRDIR/INTROSPECTION_TYPELIBDIR aren't the right place to
+# install anything - we need to install inside our prefix.
+girdir = $(datadir)/gir-1.0
+gir_DATA = $(BUILT_GIRSOURCES)
+
+typelibsdir = $(libdir)/girepository-1.0/
+
+typelibs_DATA = $(BUILT_GIRSOURCES:.gir=.typelib)
+
+%.typelib: %.gir $(INTROSPECTION_COMPILER)
+	$(INTROSPECTION_COMPILER) --includedir=$(srcdir) --includedir=$(builddir) $(INTROSPECTION_COMPILER_OPTS) $< -o $(@F)
+
+CLEANFILES = $(BUILT_GIRSOURCES) $(typelibs_DATA)
+endif