Subject: Re: How to create packages with several -march?
To: Nuno Teixeira <email@example.com>
From: None <firstname.lastname@example.org>
Date: 03/21/2005 01:51:19
Nuno Teixeira wrote:
> Thanks for your great and complete info.
> I will try this when pkgsrc freeze is complete because I need to compile
> meta kde3 and I'm waiting for xine-arts fix to be applied since
> kdemultimedia needs it.
> Just one more question: Do I see good performance results creating
> packages optimized with "-march=pentium-mmx" for a pentium 200 MMX based
> PC? For a long time that I see a lot of discussion about this and some
> people says that you get good results other people says that it doesn't
> matter using -march at all.
Using -march does create optimised binaries for a specific architecture,
but as far as I know -march=pentium-mmx can generate broken code (I
think this is gcc bug), so don't use it, maybe setting
will be safer...
Why would you want to run kde on slow P200? meta-pkgs/xfce4 has much
smaller memory footprint.