Gentoo Archives: gentoo-amd64

From: brian@××××××××××××.com
To: gentoo-amd64@l.g.o
Subject: Re: [gentoo-amd64] gcc 4.1 + CFLAGS
Date: Fri, 09 Jun 2006 04:49:33
Message-Id: 20060609044315.GA7650@fdi.worldcontrol.com
In Reply to: [gentoo-amd64] gcc 4.1 + CFLAGS by Fernando Boaglio
1 On Fri, Jun 09, 2006 at 12:59:09AM -0300, Fernando Boaglio wrote:
2 > Hi there!
3 >
4 > I was told with gcc 4.1 you can't play with some CFLAGS because you
5 > will really break your system (more dangerous than gcc 3.x ! ).
6 >
7 > Have you tried "emerge -e system" with GCC + some uncommon flag?
8 >
9 > Can you share your CFLAGS with us ?
10
11 Are any of these uncommon or dangerous:
12
13 CFLAGS="-O2 -march=opteron -ffast-math -fomit-frame-pointer -mfpmath=sse -funit-
14 at-a-time -fpeel-loops -ftracer -funswitch-loops -pipe"
15
16 I did a recent emerge -e world with gcc 4.1.1 and those flags.
17
18 Haven't noticed any problems on my laptop or a workstation.
19
20 --
21 Brian Litzinger
22 The evolution of Unix: 1970 -x, 2000 --x, 2030, ----x
23 --
24 gentoo-amd64@g.o mailing list

Replies

Subject Author
Re: [gentoo-amd64] gcc 4.1 + CFLAGS "Michael Weyershäuser" <thedude0001@×××.de>
Re: [gentoo-amd64] gcc 4.1 + CFLAGS "Hemmann