#7048: building 3.4.2 with gcc 7.3.0 with altivec support enabled fails on ppc
(Gentoo Linux)
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Reporter: | Owner:
ernsteiswuerfel | Status: reopened
Type: defect | Component: build
Priority: normal | system
Version: unspecified | Resolution:
Keywords: gcc altivec | Blocked By:
ppc | Reproduced by developer: 0
Blocking: |
Analyzed by developer: 0 |
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Comment (by ernsteiswuerfel):
I did expect {{{--disable-runtime-cpudetec}}} to do what the config
options tell, which is to create a smaller binary. Probably that's what
Gentoo thinks too. ;)
I don't think it's necessary to change configure to deal with custom
compilations flags, as altivec is not among the default flags in Gentoo
ppc/ppc64. If you build ffmpeg-3.4.2 without altivec it does just fine
(even with gcc-7.3.0).
I will look into the Gentoo bugs as you suggested and report back in a few
days.
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Ticket URL: <https://trac.ffmpeg.org/ticket/7048#comment:6>
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