make: *** [libavutil/libavutil.so.55] Error 1

[anonym24]

LD	libavutil/libavutil.so.55
/home/user/Android/AndroidStudioProjects/FFmpeg/toolchain-android/sysroot/usr/lib/crtbegin_dynamic.o:crtbegin.c:function _start_main: error: undefined reference to 'main'
libavutil/file.o:file.c:function av_file_map: error: undefined reference to 'mmap64'
libavutil/log.o:log.c:function colored_fputs.part.0: error: undefined reference to 'stderr'
libavutil/log.o:log.c:function av_log_default_callback: error: undefined reference to 'stderr'
collect2: error: ld returned 1 exit status
ffbuild/library.mak:102: recipe for target 'libavutil/libavutil.so.55' failed
make: *** [libavutil/libavutil.so.55] Error 1
Android ARMv7-a builds finished