From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 4D207138CBE for ; Sat, 21 Mar 2015 12:46:40 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id E0EFAE0A7E; Sat, 21 Mar 2015 12:46:34 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id C25A0E09E1 for ; Sat, 21 Mar 2015 12:46:33 +0000 (UTC) Received: from mail-ie0-f169.google.com (mail-ie0-f169.google.com [209.85.223.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: floppym) by smtp.gentoo.org (Postfix) with ESMTPSA id D03ED340A4B for ; Sat, 21 Mar 2015 12:46:32 +0000 (UTC) Received: by iedfl3 with SMTP id fl3so9134817ied.1 for ; Sat, 21 Mar 2015 05:46:30 -0700 (PDT) X-Received: by 10.50.137.99 with SMTP id qh3mr3061152igb.9.1426941990609; Sat, 21 Mar 2015 05:46:30 -0700 (PDT) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.64.128.168 with HTTP; Sat, 21 Mar 2015 05:46:10 -0700 (PDT) In-Reply-To: <20150319042026.GA7681@waltdnes.org> References: <20150319015612.GA7416@waltdnes.org> <2685505.RfjHhG2H7t@navi> <20150319042026.GA7681@waltdnes.org> From: Mike Gilbert Date: Sat, 21 Mar 2015 08:46:10 -0400 Message-ID: Subject: Re: [gentoo-user] Will a 64-bit-no-multilib machine cross-compile 32-bit code? To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: b6141de1-d741-4cb6-98a9-3c3ab0a5c6f1 X-Archives-Hash: 94de08ea7d8b62d7f6f8c00e6d2195cc On Thu, Mar 19, 2015 at 12:20 AM, Walter Dnes wrote= : > CFLAGS=3D"-O2 -march=3Datom -mno-cx16 -msahf -mmovbe -mno-aes -mno-pclmul= -mno-popcnt -mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-bm= i2 -mno-tbm -mno-avx -mno-avx2 -mno-sse4.2 -mno-sse4.1 -mno-lzcnt -mno-rtm = -mno-hle -mno-rdrnd -mno-f16c -mno-fsgsbase -mno-rdseed -mno-prfchw -mno-ad= x -mfxsr -mno-xsave -mno-xsaveopt --param l1-cache-size=3D24 --param l1-cac= he-line-size=3D64 --param l2-cache-size=3D512 -mtune=3Datom -fstack-protect= or -mfpmath=3Dsse -fomit-frame-pointer -pipe -fno-unwind-tables -fno-asynch= ronous-unwind-tables" > > Is that correct (assuming that's my output)? > I should warn you against including all of those -mno-xxx flags. This has been known to break the build process for packages like chromium, which always wants to build with SSE4 support and toggles it off at runtime. Passing -mno-sse4.1 causes a build failure as it tries to use macros that are not defined.