[Ffmpeg-devel] Unjustified dependancy on Snow

[stage.nexvision at laposte.net]

Hi, 

>From CVS of 3/30/6,
 I've disabled all encoders and decoders. Then I've enabled some (mjpeg, mpeg4, h264, 
h261, h263, mjpegb, mpeg) decoders.
When trying to compile, snowdsp_mmx.c is (wrongly) compiled, but the link fails because 
snowdsp_mmx reference some symbols in snow decoder which is not compiled.

FIX: Prevent compilation of snowdsp_mmx.c when snow is not selected.

Sincerely,
Cyril

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