Originally committed as revision 22009 to svn://svn.ffmpeg.org/ffmpeg/trunk
@@ -2699,6 +2699,7 @@ check_cflags -Wcast-qual
check_cflags -Wwrite-strings
check_cflags -Wtype-limits
check_cflags -Wundef
+check_cflags -Wmissing-prototypes
enabled extra_warnings && check_cflags -Winline
# add some linker flags
Diego Biurrun