Even with slight modification on configuration step, it still fails on:

ffmpeg.c: In function 'stream_component_open':
ffmpeg.c:89:6: error: 'AVCodecContext' has no member named 'error_recognition'
ffmpeg.c: In function 'audio_decode_frame':
ffmpeg.c:131:7: warning: 'avcodec_decode_audio3' is deprecated (declared at /usr/include/libavcodec/avcodec.h:3658) [-Wdeprecated-declarations]
ffmpeg.c: In function 'startread':
ffmpeg.c:153:3: error: unknown type name 'AVFormatParameters'
ffmpeg.c:168:3: warning: implicit declaration of function 'avformat_open_file' [-Wimplicit-function-declaration]
ffmpeg.c: In function 'read_samples':
ffmpeg.c:227:4: warning: implicit declaration of function 'url_ferror' [-Wimplicit-function-declaration]
ffmpeg.c: In function 'stopread':
ffmpeg.c:252:5: warning: 'av_close_input_file' is deprecated (declared at /usr/include/libavformat/avformat.h:1533) [-Wdeprecated-declarations]
ffmpeg.c: In function 'add_audio_stream':
ffmpeg.c:268:3: warning: 'av_new_stream' is deprecated (declared at /usr/include/libavformat/avformat.h:1557) [-Wdeprecated-declarations]
mv -f .deps/libsox_la-sphere.Tpo .deps/libsox_la-sphere.Plo
ffmpeg.c: In function 'startwrite':
ffmpeg.c:371:3: warning: implicit declaration of function 'av_set_parameters' [-Wimplicit-function-declaration]
ffmpeg.c:387:5: warning: implicit declaration of function 'url_fopen' [-Wimplicit-function-declaration]
ffmpeg.c:387:52: error: 'URL_WRONLY' undeclared (first use in this function)
ffmpeg.c:387:52: note: each undeclared identifier is reported only once for each function it appears in
ffmpeg.c:394:3: warning: implicit declaration of function 'av_write_header' [-Wimplicit-function-declaration]
ffmpeg.c: In function 'write_samples':
ffmpeg.c:424:7: warning: 'avcodec_encode_audio' is deprecated (declared at /usr/include/libavcodec/avcodec.h:4015) [-Wdeprecated-declarations]