Date: Wed, 10 Sep 2008 23:56:24 +0200 From: Pieter de Goeje <pieter@degoeje.nl> To: freebsd-questions@freebsd.org Cc: relay.lists@gmail.com Subject: Re: branches, updates, buildworld Message-ID: <200809102356.25577.pieter@degoeje.nl> In-Reply-To: <20080910162227.0241e209@ilievnet.com> References: <20080910162227.0241e209@ilievnet.com>
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On Wednesday 10 September 2008, relay.lists@gmail.com wrote:
> 4) Will "make buildworld" fail with a make.conf like this:
>
> ########
> PERL_VER=5.8.8
> PERL_VERSION=5.8.8
> BDECFLAGS="-march=pentium2 -mmmx -pipe -O3 -fomit-frame-pointer \
> -combine -fno-strict-aliasing"
>
> CFLAGS+=${BDECFLAGS}
> CXXFLAGS=${CFLAGS}
> COPTFLAGS="-march=pentium2 -mmmx -pipe -O3 -fomit-frame-pointer \
> -combine -fno-strict-aliasing"
Setting COPTFLAGS is discouraged, because you risk breaking the kernel. In
particular, the kernel can not use any floating point operations including
simd operations, which you explicitly enable above. May I suggest that you
first try to rebuild the base system without any CFLAGS set but simply
CPUTYPE?=pentium2
Note that by default the system is build with -O2 -fno-strict-aliasing -pipe.
--
Pieter de Goeje
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