[FFmpeg-user] Failed to build ffmpeg-git from source on Debian/testing

[Alexey Eromenko]

Downloaded ffmpeg-git + installed all build-dependencies:

The configuration was copied over from Debian. (ffmpeg has too much
external libraries and dependencies to choose one-by-one).

ffmpeg-git configure step:
http://pastebin.com/jYv0RujW


# make
...
CC      libswresample/options.o
CC      libswresample/rematrix.o
libswresample/rematrix.c: In function ‘auto_matrix’:
libswresample/rematrix.c:378:47: warning: iteration 64 invokes
undefined behavior [-Waggressive-loop-optimizations]
             s->matrix_flt[0][i] = s->matrix[0][i];
                                   ~~~~~~~~~~~~^~~
libswresample/rematrix.c:377:9: note: within this loop
         for (i = 0; i <
FF_ARRAY_ELEMS(s->matrix[0])*FF_ARRAY_ELEMS(s->matrix[0]); i++)
         ^~~
CC      libswresample/resample.o
CC      libswresample/resample_dsp.o
CC      libswresample/soxr_resample.o
CC      libswresample/swresample.o
CC      libswresample/swresample_frame.o
YASM    libswresample/x86/audio_convert.o
STRIP   libswresample/x86/audio_convert.o
skipping strip -wN ..@* libswresample/x86/audio_convert.o
CC      libswresample/x86/audio_convert_init.o
YASM    libswresample/x86/rematrix.o
STRIP   libswresample/x86/rematrix.o
skipping strip -wN ..@* libswresample/x86/rematrix.o
CC      libswresample/x86/rematrix_init.o
YASM    libswresample/x86/resample.o
STRIP   libswresample/x86/resample.o
skipping strip -wN ..@* libswresample/x86/resample.o
CC      libswresample/x86/resample_init.o
GEN     libswresample/libswresample.ver
LD      libswresample/libswresample.so.2
LD      libavcodec/libavcodec.so.57
libavcodec/libopenjpegenc.o: In function `libopenjpeg_encode_frame':
/root/ffmpeg/libavcodec/libopenjpegenc.c:705: undefined reference to
`opj_create_compress'
/root/ffmpeg/libavcodec/libopenjpegenc.c:716: undefined reference to
`opj_set_error_handler'
/root/ffmpeg/libavcodec/libopenjpegenc.c:717: undefined reference to
`opj_set_warning_handler'
/root/ffmpeg/libavcodec/libopenjpegenc.c:785: undefined reference to
`opj_stream_destroy'
/root/ffmpeg/libavcodec/libopenjpegenc.c:786: undefined reference to
`opj_destroy_codec'
/root/ffmpeg/libavcodec/libopenjpegenc.c:718: undefined reference to
`opj_set_info_handler'
/root/ffmpeg/libavcodec/libopenjpegenc.c:724: undefined reference to
`opj_setup_encoder'
/root/ffmpeg/libavcodec/libopenjpegenc.c:729: undefined reference to
`opj_stream_default_create'
/root/ffmpeg/libavcodec/libopenjpegenc.c:757: undefined reference to
`opj_stream_set_write_function'
/root/ffmpeg/libavcodec/libopenjpegenc.c:758: undefined reference to
`opj_stream_set_skip_function'
/root/ffmpeg/libavcodec/libopenjpegenc.c:759: undefined reference to
`opj_stream_set_seek_function'
/root/ffmpeg/libavcodec/libopenjpegenc.c:761: undefined reference to
`opj_stream_set_user_data'
/root/ffmpeg/libavcodec/libopenjpegenc.c:768: undefined reference to
`opj_start_compress'
/root/ffmpeg/libavcodec/libopenjpegenc.c:769: undefined reference to
`opj_encode'
/root/ffmpeg/libavcodec/libopenjpegenc.c:770: undefined reference to
`opj_end_compress'
libavcodec/libopenjpegenc.o: In function `libopenjpeg_encode_close':
/root/ffmpeg/libavcodec/libopenjpegenc.c:798: undefined reference to
`opj_image_destroy'
libavcodec/libopenjpegenc.o: In function `libopenjpeg_encode_init':
/root/ffmpeg/libavcodec/libopenjpegenc.c:307: undefined reference to
`opj_set_default_encoder_parameters'
/root/ffmpeg/libavcodec/libopenjpegenc.c:384: undefined reference to
`opj_image_destroy'
libavcodec/libopenjpegenc.o: In function `mj2_create_image':
/root/ffmpeg/libavcodec/libopenjpegenc.c:287: undefined reference to
`opj_image_create'
/usr/bin/ld: libavcodec/libavcodec.so.57: hidden symbol
`opj_stream_set_write_function' isn't defined
/usr/bin/ld: final link failed: Bad value
collect2: error: ld returned 1 exit status
library.mak:102: recipe for target 'libavcodec/libavcodec.so.57' failed
make: *** [libavcodec/libavcodec.so.57] Error 1

If compiler doesn't like "libavcodec", then why configure step succeeded ?

Any ideas ?
-- 
-Alexey Eromenko "Technologov"