It should be #if, not #ifdef

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18659 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/raw.c

@@ -973,7 +973,7 @@ AVInputFormat mlp_demuxer = {
 };
 #endif
 
-#ifdef CONFIG_MLP_MUXER
+#if CONFIG_MLP_MUXER
 AVOutputFormat mlp_muxer = {
     "mlp",
     NULL_IF_CONFIG_SMALL("raw MLP"),