don't use AS_LIBTOOL_TAGS, it doesn't work

Original commit message from CVS:
don't use AS_LIBTOOL_TAGS, it doesn't work

common @ 6f7101e2

-Subproject commit 6850ec3d1c74ff309330c3410c3fce3d947986ca
+Subproject commit 6f7101e2227975fa8a134358362dd4b55e326b4c

configure.ac

@@ -41,7 +41,12 @@ dnl - interfaces added -> increment AGE
 dnl - interfaces removed -> AGE = 0
 dnl sets GST_LT_LDFLAGS
 AS_LIBTOOL(GST, 2, 0, 2)
-AS_LIBTOOL_TAGS
+
+dnl FIXME: this macro doesn't actually work;
+dnl the generated libtool script has no support for the listed tags.
+dnl So this needs to be fixed first if we want to use this
+dnl AS_LIBTOOL_TAGS
+
 AM_PROG_LIBTOOL
 
 dnl *** required versions of GStreamer stuff ***