CC	libavcodec/amrnbdec.o
CC	libavcodec/amrwbdec.o
CC	libavcodec/anm.o
libavcodec/allcodecs.c: In function ‘avcodec_register_all’:
libavcodec/allcodecs.c:48:13: error: ‘CONFIG_FMVC_DECODER’ undeclared (first use in this function)
         if (CONFIG_##X##_DECODER)                                       \
             ^
libavcodec/allcodecs.c:195:5: note: in expansion of macro ‘REGISTER_DECODER’
     REGISTER_DECODER(FMVC,              fmvc);
     ^
libavcodec/allcodecs.c:48:13: note: each undeclared identifier is reported only once for each function it appears in
         if (CONFIG_##X##_DECODER)                                       \
             ^
libavcodec/allcodecs.c:195:5: note: in expansion of macro ‘REGISTER_DECODER’
     REGISTER_DECODER(FMVC,              fmvc);
     ^
CC	libavcodec/ansi.o
CC	libavcodec/apedec.o
common.mak:60: recipe for target 'libavcodec/allcodecs.o' failed
make: *** [libavcodec/allcodecs.o] Error 1
make: *** Waiting for unfinished jobs....
libavformat/movenc.c: In function ‘mov_flush_fragment’:
libavformat/movenc.c:4540:12: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow]
 static int mov_flush_fragment(AVFormatContext *s, int force)
            ^
libavformat/movenc.c:4540:12: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow]
libavformat/movenc.c:890:8: warning: assuming signed overflow does not occur when assuming that (X - c) > X is always false [-Wstrict-overflow]
     if (cluster_idx >= track->entry)
        ^