asfdemux: link to all required libraries including indirectly used ones.

On win32, we're required to link to all the libraries used - including
ones only indirectly used by other libs. So, add gstaudio, gsttag, and
(for windows only) winsock.

configure.ac

@@ -204,6 +204,13 @@ AG_GST_CHECK_PLUGIN(mpegstream)
 AG_GST_CHECK_PLUGIN(realmedia)
 AG_GST_CHECK_PLUGIN(synaesthesia)
 
+AC_CHECK_HEADERS([winsock2.h], HAVE_WINSOCK2_H=yes)
+
+if test "x$HAVE_WINSOCK2_H" = "xyes"; then
+  WIN32_LIBS="-lws2_32"
+  AC_SUBST(WIN32_LIBS)
+fi
+
 dnl disable experimental plug-ins
 if test "x$BUILD_EXPERIMENTAL" != "xyes"; then
   AG_GST_DISABLE_PLUGIN(synaesthesia)

gst/asfdemux/Makefile.am

@@ -4,7 +4,8 @@ libgstasf_la_SOURCES = gstasfdemux.c gstasf.c asfheaders.c asfpacket.c gstrtpasf
 libgstasf_la_CFLAGS = $(GST_BASE_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
 libgstasf_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) $(GST_BASE_LIBS) $(GST_LIBS)\
 		-lgstriff-@GST_MAJORMINOR@ -lgstrtsp-@GST_MAJORMINOR@ -lgstsdp-@GST_MAJORMINOR@ \
-		-lgstrtp-@GST_MAJORMINOR@
+		-lgstrtp-@GST_MAJORMINOR@ -lgstaudio-@GST_MAJORMINOR@ -lgsttag-@GST_MAJORMINOR@ \
+		$(WIN32_LIBS)
 libgstasf_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 libgstasf_la_LIBTOOLFLAGS = --tag=disable-static