libavcodec/libx264.c: In function 'X264_frame':
libavcodec/libx264.c:172:9: error: 'x264_bit_depth' undeclared (first use in this function)
     if (x264_bit_depth > 8)
         ^~~~~~~~~~~~~~
libavcodec/libx264.c:172:9: note: each undeclared identifier is reported only once for each function it appears in
libavcodec/libx264.c: In function 'X264_init':
libavcodec/libx264.c:662:32: warning: the address of 'val' will always evaluate as 'true' [-Waddress]
                 OPT_STR(param, val);
                                ^
libavcodec/libx264.c:323:13: note: in definition of macro 'OPT_STR'
         if (param && (ret = x264_param_parse(&x4->params, opt, param)) < 0) { \
             ^~~~~
libavcodec/libx264.c: In function 'X264_init_static':
libavcodec/libx264.c:764:9: error: 'x264_bit_depth' undeclared (first use in this function)
     if (x264_bit_depth == 8)
         ^~~~~~~~~~~~~~
make: *** [libavcodec/libx264.o] Error 1