Gentoo Archives: gentoo-dev

From: Simon Stelling <blubb@g.o>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] Replacing cpu-feature USE flags
Date: Fri, 07 Jul 2006 13:27:35
Message-Id: 44AE5FC8.1060107@gentoo.org
In Reply to: Re: [gentoo-dev] Replacing cpu-feature USE flags by Martin Schlemmer
1 Martin Schlemmer wrote:
2 > Stupid question though ... does the gcc test thingy list __3dNOW__ on
3 > nocona ? I would think that it does, as there is no -march=nocona (or
4 > whatever) yet.
5
6 There is a -march=nocona, and it doesn't define __3dNOW__.
7
8 > So now you want to instead of fixing the amd64 profiles to be more
9 > flexible, implement something that will give the green light to users on
10 > x86 to use flag combinations, especially on older gcc's that causes
11 > great pain for themselfs and developers ?
12
13 I don't understand this. Why is '-march=i686 -m3dnow' bad if it results in the
14 same thing as '-march=athlon-xp'? I guess I'm just lacking facts here, so please
15 give me a hint :)
16
17 --
18 Kind Regards,
19
20 Simon Stelling
21 Gentoo/AMD64 Developer
22 --
23 gentoo-dev@g.o mailing list

Replies

Subject Author
Re: [gentoo-dev] Replacing cpu-feature USE flags Martin Schlemmer <azarah@××××××××××××.org>