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 34946138C9D for ; Thu, 30 Apr 2015 16:28:07 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 31567E085A; Thu, 30 Apr 2015 16:27:59 +0000 (UTC) Received: from mail-wi0-f173.google.com (mail-wi0-f173.google.com [209.85.212.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id A58F2E0851 for ; Thu, 30 Apr 2015 16:27:57 +0000 (UTC) Received: by wief7 with SMTP id f7so17091243wie.0 for ; Thu, 30 Apr 2015 09:27:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=QrY/hKhrXAsjP4LxLenZH3mGKOjjX5Dk745OhTyimec=; b=TZlWEi61Rkj/Pd102zJ4/oLeQ3DqcA0CcQOY5JaFQ4Vr8lkVjcAoO8H6SDa6c6iEbb rKEM5VPuWVUGFiGTVUtOD2f7SU32VrfBNzCrr0bA1ejtTvHM3v+v4eo0fn3pyT5Mc1gI bLdGXCWLEOm8oon+zjAi8MN5hb/c+L7NKkvVFXn97/da0d3Q7heX9BGB+noSmBQ6leRU GOK941RstqLeCwvXT4jCY3VJn93HT2UpmOl8k6C7kMoW8o9mrhj4+hP+nG/rRz+INp1j DNCofnkahChp+GbeyCgWdcX5dqCPIbn4ukTJ0hGQG37hA8R9quS/hZJQpY/BgWcdwQdQ zo2Q== X-Received: by 10.194.204.230 with SMTP id lb6mr9990730wjc.63.1430411276650; Thu, 30 Apr 2015 09:27:56 -0700 (PDT) Received: from [192.168.178.21] (p5B0C5F3F.dip0.t-ipconnect.de. [91.12.95.63]) by mx.google.com with ESMTPSA id fs9sm3975220wjc.34.2015.04.30.09.27.55 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 30 Apr 2015 09:27:55 -0700 (PDT) Message-ID: <5542580A.1010009@googlemail.com> Date: Thu, 30 Apr 2015 18:27:54 +0200 From: Volker Armin Hemmann User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 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 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] CFLAGs for kernel compilation References: <5540C101.70906@ramses-pyramidenbau.de> <20150429133315.0678687f@digimed.co.uk> <5540DA1F.8030605@ramses-pyramidenbau.de> In-Reply-To: <5540DA1F.8030605@ramses-pyramidenbau.de> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Archives-Salt: 6368da62-a1b0-4c36-9621-7b660ef1a689 X-Archives-Hash: d6cf20e4175d98b935f742e55e4d47b4 Am 29.04.2015 um 15:18 schrieb Ralf: > Damn, you're absolutely right. > > I just tested it using make V=1. > kernel make does override CFLAGs from the outside. > > But that's interesting: my processor supports -march=core-avx2 and none > of the linux kernel processor family uses this flag... that does not matter. Just say no to stupid flags and unnecessary 'optimizations'.