fixing warning

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@315 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

ffserver.c

@@ -35,6 +35,7 @@
 #include <netdb.h>
 #include <ctype.h>
 #include <signal.h>
+#include <assert.h>
 
 #include "bswap.h" // needed for the bitstream writer in common.h which is included in avformat.h
 #include "avformat.h"