From owner-freebsd-stable@FreeBSD.ORG Wed Aug 31 18:56:31 2005 Return-Path: X-Original-To: stable@freebsd.org Delivered-To: freebsd-stable@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A469416A41F for ; Wed, 31 Aug 2005 18:56:31 +0000 (GMT) (envelope-from decibel@decibel.org) Received: from flake.decibel.org (flake.decibel.org [67.100.216.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 27AB843D45 for ; Wed, 31 Aug 2005 18:56:30 +0000 (GMT) (envelope-from decibel@decibel.org) Received: by flake.decibel.org (Postfix, from userid 1001) id 6A95C1525C; Wed, 31 Aug 2005 13:56:30 -0500 (CDT) Date: Wed, 31 Aug 2005 13:56:30 -0500 From: "Jim C. Nasby" To: Chuck Swiger Message-ID: <20050831185630.GA98175@decibel.org> References: <55023220@srv.sem.ipt.ru> <20050828150947.GA58038@82-168-75-155-bbxl.xdsl.tiscali.nl> <4312B091.9090104@meijome.net> <20050831050137.GQ77007@decibel.org> <4315C541.7050000@mac.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4315C541.7050000@mac.com> X-Operating-System: FreeBSD 4.11-RELEASE-p10 i386 X-Distributed: Join the Effort! http://www.distributed.net User-Agent: Mutt/1.5.9i Cc: stable@freebsd.org Subject: Re: 6.0 and -O2 option X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 31 Aug 2005 18:56:31 -0000 On Wed, Aug 31, 2005 at 10:57:05AM -0400, Chuck Swiger wrote: > Jim C. Nasby wrote: > >On Tue, Aug 30, 2005 at 10:57:53AM +1000, Robert Backhaus wrote: > [ ... ] > >>Simply because not every port works with -O2 optimisations. It caused > >>bad code in some circumstances. > > > >Is there an automated way to identify those ports so they can be forced > >not to use -O higer than -O1? > > Regrettably, no. Well, -Werror might be somewhere between overkill and > helpful, assuming the compiler can recognize a potential type-punning > situation. Even if the identification can't be done automatically, it still seems like it would be good to start identifying ports that don't support -O by hand, and having the ports force a correct -O setting. Most ports support -O2 (if not -O3), and it would be nice if people could just put that option in their make.conf and be done with it. -- Jim C. Nasby, Database Architect decibel@decibel.org Give your computer some brain candy! www.distributed.net Team #1828 Windows: "Where do you want to go today?" Linux: "Where do you want to go tomorrow?" FreeBSD: "Are you guys coming, or what?"