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Date: Tue, 25 Oct 2005 13:16:01 -0400
From: Kris Kennaway <kris@obsecurity.org>
To: Chris <chrcoluk@gmail.com>
Message-ID: <20051025171601.GA33303@xor.obsecurity.org>
References: <20051022160723.5ba02ccd.dick@nagual.st> <435A5E70.1010304@mac.com>
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Cc: dick hoogendijk <dick@nagual.st>, freebsd-stable@freebsd.org
Subject: Re: make.conf for 6.0
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On Mon, Oct 24, 2005 at 08:57:27PM +0100, Chris wrote:
> On 22/10/05, Chuck Swiger <cswiger@mac.com> wrote:
> > dick hoogendijk wrote:
> > > My make.conf contains (fbsd-5.4)
> > > CFLAGS= -O -pipe
> > > COPTFLAGS= -O -pipe
> > >
> > > Are these settings the same for the upcoming release6 or do I need to
> > > set -O2 in this new version?
> >
> > FreeBSD is moving towards "-O2 -fno-strict-aliasing" by default [1], but there
> > is nothing wrong with using "-O" only.  On most platforms, there isn't much
> > difference between -O and -O2, although -O2 does help more with the x86
> > architecture.
> >
> > --
> > -Chuck
> >
> Hmm so using "-O2" is bad in 5.4 and it should be "-O2 -fno-strict-aliasing"?

If you use any third-party software, yes.  i.e. FreeBSD itself is
fine, but not ports.

Kris

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