[vlc-devel] commit: Use --arch=i686 when building ffmpeg for windows ( Rafaël Carré )
funman at videolan.org
Tue Mar 4 20:36:21 CET 2008
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Remi Denis-Courmont a écrit :
> On Tue, 4 Mar 2008 16:22:00 +0100 (CET), git at videolan.org (git version
> control) wrote: -
>> vlc | branch: master | Rafaël Carré <funman at videolan.org> | Tue Mar 4
>> 16:13:16 2008 +0100| [8bc7f50322158fc6582883588ca08daf7331ce36]
>> Use --arch=i686 when building ffmpeg for windows
>> Fix cross compilation from 64bits host
> There is a major difference between -mcpu and -march. -mcpu is for tuning
> (optimization). -march is a minimum requirement.
> Hence this change makes VLC-win32 unusable on 486 and first-gen Pentiums.
> Considering that we barely support Win98, and that these boxes typically
> run Win95, I do not disagree with the change - but I hope it is well
> understood. If this is not intended, you may prefer to use -mtune. That is
> the new name for -mcpu with not-so-old GCC.
I thought that --cpu=i686 would generate binaries not running on i586,
where I was wrong.
There is something else to consider : these boxes have enough CPU to
decode 15x12 videos, so we might consider that i586 support is dead &
Thanks for your review.
> Note that -march=i686 implies -mcpu=i686, so the older option is pretty
> useless now.
Will remove that if no pentium zealot comes against.
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