[FFmpeg-trac] #8986(swscale:closed): Compilation fails on x86 when only mmx optimizations are enabled
FFmpeg
trac at avcodec.org
Sat Nov 14 16:58:36 EET 2020
#8986: Compilation fails on x86 when only mmx optimizations are enabled
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Reporter: maikenakka | Owner:
Type: defect | Status: closed
Priority: normal | Component: swscale
Version: git-master | Resolution: fixed
Keywords: regression | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
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Comment (by cehoyos):
Replying to [comment:2 maikenakka]:
> Thank you. The insane config line was generated by Gentoo.
Yes, I thought so, this is a known issue for a long time. Apart from the
obvious debugging difficulties, the problem is always that a very slow
binary is created although some details in the configure line make me
think that this is not completely intentional. The general rule of thumb
is not to use `--optflags` (the option is needed for rare compilers) and
not to use any `--disable-*` options (they only exist as debug options or
because they automatically come with the corresponding enabling options).
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8986#comment:3>
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