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Date:      Sat, 6 Nov 2004 00:01:03 +0100
From:      Michael Nottebrock <michaelnottebrock@gmx.net>
To:        Kris Kennaway <kris@obsecurity.org>
Cc:        current@freebsd.org
Subject:   Re: HEADS UP: Ports are not ready for CFLAGS=-O2 in 6.0
Message-ID:  <200411060001.07644.michaelnottebrock@gmx.net>
In-Reply-To: <20041105222350.GA43977@xor.obsecurity.org>
References:  <20041102222000.GA65845@xor.obsecurity.org> <200411052316.53025.michaelnottebrock@gmx.net> <20041105222350.GA43977@xor.obsecurity.org>

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On Friday, 5. November 2004 23:23, Kris Kennaway wrote:
> On Fri, Nov 05, 2004 at 11:16:51PM +0100, Michael Nottebrock wrote:
> > On Friday, 5. November 2004 22:56, Michael Johnson wrote:
> > > On Nov 5, 2004, at 4:52 PM, Kris Kennaway wrote:
> > > > Same as on 6.x - the bugs are in the ports themselves.  Don't do it
> > > > if you want your ports to work correctly.
> > >
> > > Is there a list of what's broke with -O2 in ports anywhere?
> >
> > It's kinda hard to come up with one based on compiler warnings &
> > paranoia. :)
>
> It might be hard to come up with a definitive list of problems, but
> the fact that there are bugs in many ports that are manifested when
> they are compiled with -O2 is undeniable.

I'd s/many/some, but that's just me (the fact that there are bugs in many=20
ports that are manifested by just compiling them, regardless of CFLAGS, is=
=20
undeniable, too ;)).

Anyway, regarding the question of the OP, at least KDE should be -O2-safe,=
=20
it's been the default optimization level of the project for a long time. Th=
at=20
said, I never noticed any cool speed gains from that at runtime - I did=20
notice the increase of compilation-time though (and I notice it more with=20
each gcc update).

=2D-=20
   ,_,   | Michael Nottebrock               | lofi@freebsd.org
 (/^ ^\) | FreeBSD - The Power to Serve     | http://www.freebsd.org
   \u/   | K Desktop Environment on FreeBSD | http://freebsd.kde.org

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