[Ffmpeg-devel] Build failure if snow is disabled

[Luca Abeni]

Hi all,

if I configure with
./configure --disable-decoder=snow --disable-encoder=snow
I get
[...]
gcc -Wl,--warn-common -rdynamic -g -o ffmpeg_g ffmpeg.o cmdutils.o -L./libavformat -lavformat -L./libavcodec -lavcodec -L./libavutil -lavutil -lm -lz -ldl
./libavcodec/libavcodec.a(dsputil.o): In function `dsputil_init':/tmp/ffmpeg/libavcodec/dsputil.c:4052: undefined reference to `ff_snow_horizontal_compose97i'
:/tmp/ffmpeg/libavcodec/dsputil.c:4053: undefined reference to `ff_snow_inner_add_yblock'
:/tmp/ffmpeg/libavcodec/dsputil.c:4051: undefined reference to `ff_snow_vertical_compose97i'
collect2: ld returned 1 exit status
make: *** [ffmpeg_g] Error 1

I do not know what's the best way to fix this bug. It seems that all the
other codecs address this issue by still compiling some code even if
they are disabled (for example, if I do "--disable-decoder=h264
--disable-encoder=h264", h264idct.c is still compiled).
This increases the library size a lot... :(

				Luca
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