Date: Thu, 23 Mar 2000 06:24:54 -0800 From: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: obrien@FreeBSD.ORG, Howard Leadmon <howardl@account.abs.net>, freebsd-alpha@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG Subject: Re: Compiler problems with -O2 (was Re: CVS Trouble, even under 4.0-RELEASE (alpha) HELP!) Message-ID: <200003231425.GAA01222@cwsys.cwsent.com> In-Reply-To: Your message of "Wed, 22 Mar 2000 17:42:03 EST." <14553.19348.115781.273817@grasshopper.cs.duke.edu>
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In message <14553.19348.115781.273817@grasshopper.cs.duke.edu>, Andrew Gallatin writes: > > David O'Brien writes: > > On Wed, Mar 22, 2000 at 03:03:09PM -0500, Howard Leadmon wrote: > > > want to avoid, or at least note the problem with -O2 as I have been usin > g > > > that when making software on my Intel machines for a long time, so just > > > assumed it was OK to do the same on the Alpha.. > > > > It isn't officially OK from the perspective of the FreeBSD Project. "-O2" > > has been the cause of problems on the i386 arch too. Thus my constant > > yelling about it that nobody pays attention to. > > > > I'm on the virge of turning off "-O2" on both Alpha and i386. > > You certainly have my vote. > > I take it the O2 bugs are not unique to us, but rather they are > generic across all OSes that gcc version 2.95.2 runs on? Do the gcc > people know these problems exist? How about a compromise? Just print a nasty message every time -O2 is specified: BEWARE: -O2 may cause some applications to break or may cause your system to fail to boot. Be sure you absolutely know what you are doing before using -O2 optimisation. Then enclose it in stars (*) or bangs (!). Regards, Phone: (250)387-8437 Cy Schubert Fax: (250)387-5766 Team Leader, Sun/DEC Team Internet: Cy.Schubert@osg.gov.bc.ca Open Systems Group, ITSD, ISTA Province of BC To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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