From owner-freebsd-current@FreeBSD.ORG  Wed Nov  3 22:47:41 2004
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Date: Wed, 3 Nov 2004 15:47:37 -0700
From: Jie Gao <jeffgaofreebsd@gmail.com>
To: Kris Kennaway <kris@obsecurity.org>
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cc: ports@freebsd.org
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Subject: Re: HEADS UP: Ports are not ready for CFLAGS=-O2 in 6.0
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I just wonder if it is safe to use -O2 -pipe for kernel + world on 5-STABLE now.


On Tue, 2 Nov 2004 14:20:00 -0800, Kris Kennaway <kris@obsecurity.org> wrote:
> About a week ago des changed the default value of CFLAGS to "-O2
> -pipe" on FreeBSD 6.0-CURRENT.  While this is believed to be safe for
> compiling world + kernel on -CURRENT thesedays (because the aliasing
> bugs that are exposed with -O2 have been fixed), it's definitely *not*
> safe for compiling many ports (there are at least 350 ports that emit
> warnings about aliasing, and would probably have runtime errors when
> compiled with -O2; moreover, a number of ports fail to even build with
> -O2).
> 
> Therefore, if you compile ports on FreeBSD 6.0, you should set
> CFLAGS=-O -pipe in your /etc/make.conf for now, until we can resolve
> this problem more satisfactorily.
> 
> Kris
> 
> 
>