--- comm-release/mozilla/configure.in	2012-11-30 13:31:55.000000000 +0100
+++ comm-release/mozilla/configure.in	2012-12-03 06:37:40.000000000 +0100
@@ -5200,6 +5200,11 @@
     MOZ_SYDNEYAUDIO=1
     MOZ_CUBEB=1
     MOZ_MEDIA=1
+    if test "$MOZ_SAMPLE_TYPE_FLOAT32"; then
+        MOZ_VORBIS=1
+    else
+        MOZ_TREMOR=1
+    fi
 
     dnl Checks for __attribute__(aligned()) directive
     AC_CACHE_CHECK([__attribute__ ((aligned ())) support],