From owner-freebsd-current@FreeBSD.ORG Wed Jul 7 02:45:06 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 346F416A4CE for ; Wed, 7 Jul 2004 02:45:06 +0000 (GMT) Received: from VARK.homeunix.com (adsl-69-107-108-110.dsl.pltn13.pacbell.net [69.107.108.110]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0A17043D39 for ; Wed, 7 Jul 2004 02:45:06 +0000 (GMT) (envelope-from das@FreeBSD.ORG) Received: from VARK.homeunix.com (localhost [127.0.0.1]) by VARK.homeunix.com (8.12.11/8.12.10) with ESMTP id i672ibwD052217; Tue, 6 Jul 2004 19:44:37 -0700 (PDT) (envelope-from das@FreeBSD.ORG) Received: (from das@localhost) by VARK.homeunix.com (8.12.11/8.12.10/Submit) id i672ibOj052216; Tue, 6 Jul 2004 19:44:37 -0700 (PDT) (envelope-from das@FreeBSD.ORG) Date: Tue, 6 Jul 2004 19:44:37 -0700 From: David Schultz To: Mark Johnston Message-ID: <20040707024437.GA52072@VARK.homeunix.com> Mail-Followup-To: Mark Johnston , current@FreeBSD.ORG References: <200407061055.29337.mjohnston@skyweb.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200407061055.29337.mjohnston@skyweb.ca> cc: current@FreeBSD.ORG Subject: Re: cvs-src summary for June 28 - July 5 (complete) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Jul 2004 02:45:06 -0000 On Tue, Jul 06, 2004, Mark Johnston wrote: > Compiling the system and ports with -O2 > --------------------------------------- > Dag-Erling Smorgrav (des) made a change to make.conf, correcting a comment > that said that -O2 exposed bugs in ppp to mention libalias instead. > > David Schultz (das) replied, saying "I've been compiling most things with > -O2 for a while (to find -O2 bugs, not for speed) and haven't noticed many > problems", except that "-O2 breaks floating-point exceptions in libm". > He suggested that "maybe -O2 should be automatically turned off while > compiling libm (and perhaps libalias as well). That would make it more > easily justifiable to make -O2 the default at some future point." > > Kris Kennaway (kris) responded "I don't think we can ever make it the > default since there's likely to be a lot of software in ports that would > be broken too." > > David answered "99% of the ports that "may break" build with -O2 on Linux ^^^^^ > (as -O2 is their default). What is different about us vs. Linux for these > ports?" That was David O'Brien, not me. ;-) > David responded "Because most everything in the ports collection was > developed on Linux using -O2. The bugs are in our code, not gcc's -O2." Likewise.