[FFmpeg-devel] [PATCH] Improve the detection of architecture x86.

[Andreas Cadhalpun]

Hi,

currently FFmpeg fails to build on Debian GNU/Hurd with the following error:
tools/crypto_bench.c: In function 'run_implementation':
tools/crypto_bench.c:261:9: error: implicit declaration of function 
'AV_READ_TIME' [-Werror=implicit-function-declaration]
          t0 = AV_READ_TIME();
          ^
cc1: some warnings being treated as errors
common.mak:49: recipe for target 'tools/crypto_bench.o' failed

This problem arises, because the architecture is not correctly detected 
as x86, but instead as 'i686-AT386', which is the output of 'uname -m'.

The attached patch fixes this problem and enables building on Hurd.

Best regards,
Andreas
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