Date: Wed, 2 Jul 2003 14:35:37 +0200 From: "Simon L. Nielsen" <simon@nitro.dk> To: Alexandre Michelot <alexandre.michelot@epita.fr> Cc: doc@FreeBSD.org Subject: Re: errata - 5.1R Message-ID: <20030702123537.GB398@nitro.dk> In-Reply-To: <3F02CF2E.5070803@epita.fr> References: <3F02CF2E.5070803@epita.fr>
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On 2003.07.02 14:25:18 +0200, Alexandre Michelot wrote:
> Hi,
>=20
> I don't exactly where to post, sorry if it's the wrong person...
If it was a documentation / errata problem it would be right, but...
> When installing the 5.1R on an old machine (k6-2), I encountered some=20
> problems due to a gcc regression producing segfault during compilation=20
> and eventually broken code when using : -march=3Dk6-2 -O2
Using -O2 is unsupported, because gcc is know to generate broken code in
some cases with -02 and higher. From the make.conf manual page :
CFLAGS (str) Controls the compiler setting when compiling C cod=
e.
Optimization levels above -O (-O2, ...) are not supporte=
d.
That said I actually though -O2 should work for i386 with recent
versions of gcc.
--=20
Simon L. Nielsen
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