HEADS UP: Ports are not ready for CFLAGS=-O2 in 6.0

[Kris Kennaway]

On Sun, Jul 03, 2005 at 10:27:04AM -0700, Darren Pilgrim wrote:
> From: Kris Kennaway
> > On Sat, Jul 02, 2005 at 09:47:44PM -0700, Adam Weinberger wrote:
> > > Kris Kennaway 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.
> <...>
> > 
> > P.S. The problem is only if you build without 
> > -fno-strict-alias, which is the default now.
> 
> Is that to say, then, that ports will build and run safely if you use
> CFLAGS=-O2 -pipe -fno-strict-alias?

As per the quoted thread from last year, and the default CFLAGS
settings, yes :-)

Kris
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