clean the musicbrainz stuffs

configure.ac

@@ -1573,17 +1573,15 @@ dnl
 dnl Musicbrainz plugin
 dnl
 
-enablemusicbrainz=false
 AC_ARG_ENABLE(musicbrainz,
-  [  --enable-musicbrainz    MusicBrainz support (default disabled) ],
-  [if test "${enable_musicbrainz}" = "yes"; then
-      PKG_CHECK_MODULES(MusicBrainz, libmusicbrainz,
+  [  --enable-musicbrainz    MusicBrainz support (default disabled) ])
+  AS_IF([test "${enable_musicbrainz}" = "yes"],[
+      PKG_CHECK_MODULES(MUSICBRAINZ, libmusicbrainz,
   	[ VLC_ADD_PLUGINS([musicbrainz])
-	  enablemusicbrainz=true
-	  VLC_ADD_LDFLAGS([musicbrainz],[-lmusicbrainz]) ],
+	  VLC_ADD_LDFLAGS([musicbrainz],[$MUSICBRAINZ_LIBS]) 
+	  VLC_ADD_CFLAGS([musicbrainz],[$MUSICBRAINZ_CFLAGS])  ],
        [AC_MSG_WARN(MusicBrainz library not found)])
-   fi])
-AM_CONDITIONAL(ENABLE_MUSICBRAINZ, test "$enableqt4" = "true")
+   ])
 
 dnl
 dnl  Input plugins