Date: Wed, 31 Aug 2005 13:56:30 -0500 From: "Jim C. Nasby" <decibel@decibel.org> To: Chuck Swiger <cswiger@mac.com> Cc: stable@freebsd.org Subject: Re: 6.0 and -O2 option Message-ID: <20050831185630.GA98175@decibel.org> In-Reply-To: <4315C541.7050000@mac.com> References: <55023220@srv.sem.ipt.ru> <20050828150947.GA58038@82-168-75-155-bbxl.xdsl.tiscali.nl> <4312B091.9090104@meijome.net> <d449958050829175712f309f3@mail.gmail.com> <20050831050137.GQ77007@decibel.org> <4315C541.7050000@mac.com>
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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?"
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