HEADS UP: Ports are not ready for CFLAGS=-O2 in 6.0
Jie Gao
jeffgaofreebsd at gmail.com
Wed Nov 3 14:47:41 PST 2004
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 at 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
>
>
>
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