Date: Thu, 01 Jun 2000 16:25:11 -0400 From: Otter <otterr@telocity.com> To: Eric Ogren <eogren@earthlink.net> Cc: Mike Johnson <ahze@hc1.hci.net>, questions@FreeBSD.ORG Subject: Re: How to compile with cpu opts. Message-ID: <3936C6A7.BCDA430C@telocity.com> References: <Pine.BSI.3.91.1000601112057.14599A-100000@hc1.hci.net> <20000601112326.A4464@earthlink.net>
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Eric Ogren wrote: > > If you really really want to, you can put > CFLAGS= -march=pentium > in /etc/make.conf. > For more options, or for an explanation of what's what here, you can "man gcc" for stuff to put into your make.conf. My -current box is a dual Pentium III. I'm using the following optimizations in my make.conf: CFLAGS= -ffast-math -pipe -march=pentiumpro -O3 (that's the letter O, not a zero) Also, keep in mind what Eric said about support when your compiler starts barfing (ok, maybe that's just my paraphrase). I haven't had any problems with mine yet. -Otter > However, if you do this, and things start breaking, especially when you > try to make world or compile a kernel, you aren't going to find a lot of > help from the mailing lists, since we don't support platform > optimization when compiling the userland or the kernel. > > Eric > > On Thu, Jun 01, 2000 at 11:23:28AM -0400, Mike Johnson wrote: > > Hey > > I want to be able to compile programs in /usr/ports with > > i686/i586 cpu optmazations. I know something about /etc/make.conf but im > > not quite sure what to put in there. > > Thanks > > Michael Johnson > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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