From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.62) (envelope-from ) id 1HrFIN-0005kv-3k for garchives@archives.gentoo.org; Thu, 24 May 2007 15:32:07 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.14.0/8.14.0) with SMTP id l4OFURKp024967; Thu, 24 May 2007 15:30:27 GMT Received: from an-out-0708.google.com (an-out-0708.google.com [209.85.132.247]) by robin.gentoo.org (8.14.0/8.14.0) with ESMTP id l4OFQM1F020367 for ; Thu, 24 May 2007 15:26:23 GMT Received: by an-out-0708.google.com with SMTP id c8so66800ana for ; Thu, 24 May 2007 08:26:22 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=i1btrMObHhYbUUNixygnS450fbY1mhsUGPhb4Y1olaTKd3JWZPPm7+0+AoWU6Y2iTgeHInJiiQkO3X1aC/vypUrVZgpBJYWwf9IrQ+AeXsKOUsPi/5lvkI7GRRMC9EgID4zmgiShsg8bAlQeYZLGxRSLEctynMAs0yXPhkium70= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=NDeW9J3xmT8FxK9zKM8voCIBFYvNpfOHLCd72UNjm3YTPNY+5my36fEANf2XcniBGbUlkh7m4RgsZkIGl/82KwJKxFbxNOEhiTaeSTHuodnI9dB7A29qN25erKZlX2nJqnQ+ucaZNn4X/s4W83I/8gkotVaaDBjOxRLumJWLHrE= Received: by 10.114.192.1 with SMTP id p1mr935166waf.1180019610778; Thu, 24 May 2007 08:13:30 -0700 (PDT) Received: by 10.114.72.10 with HTTP; Thu, 24 May 2007 08:13:30 -0700 (PDT) Message-ID: Date: Thu, 24 May 2007 11:13:30 -0400 From: Denis To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] which -march flag to pick for Intel Core 2 Duo in make.conf? In-Reply-To: <642958cc0705240717s360e212er3f54e8636e5a06f1@mail.gmail.com> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <642958cc0705240717s360e212er3f54e8636e5a06f1@mail.gmail.com> X-Archives-Salt: 56d3c7b7-dc1b-4743-ad41-d0fd6bf85c4c X-Archives-Hash: 533b8aaa4e710c6a5e07888637989219 After reading some docs, the impression I get is that the 'nocona' flag is for building a 64-bit system... For a 32-bit system, it seems like 'prescott' would be the choice, wouldn't it? This from the GCC website about 4.2.0 release changes: IA-32/x86-64 * -mtune=generic can now be used to generate code running well on common x86 chips. This includes AMD Athlon, AMD Opteron, Intel Pentium-M, Intel Pentium 4 and Intel Core 2. * -mtune=native and -march=native will produce code optimized for the host architecture as detected using the cpuid instruction. * Added a new command line option -fstackrealign and and __attribute__ ((force_align_arg_pointer)) to realign the stack at runtime. This allows functions compiled with a vector-aligned stack to be invoked from legacy objects that keep only word-alignment. We don't have gcc-4.2.0 in our portage available for installation yet, do we? Anyone know when? -- gentoo-user@gentoo.org mailing list