From owner-freebsd-questions@FreeBSD.ORG Sat Jan 24 18:18:01 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8077B1065674 for ; Sat, 24 Jan 2009 18:18:01 +0000 (UTC) (envelope-from pp@pp.dyndns.biz) Received: from proxy1.bredband.net (proxy1.bredband.net [195.54.101.71]) by mx1.freebsd.org (Postfix) with ESMTP id 359DA8FC0A for ; Sat, 24 Jan 2009 18:18:01 +0000 (UTC) (envelope-from pp@pp.dyndns.biz) Received: from ironport.bredband.com (195.54.101.120) by proxy1.bredband.net (7.3.127) id 494BF21C00AD970E for freebsd-questions@freebsd.org; Sat, 24 Jan 2009 18:57:28 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgNBAP/keklV4jp1PGdsb2JhbAAwgT2HJYpgAQEBATW1HIVM X-IronPort-AV: E=Sophos;i="4.37,318,1231110000"; d="scan'208";a="477741007" Received: from c-753ae255.107-1-64736c10.cust.bredbandsbolaget.se (HELO gatekeeper.pp.dyndns.biz) ([85.226.58.117]) by ironport1.bredband.com with ESMTP; 24 Jan 2009 18:57:28 +0100 Received: from [192.168.69.67] (phobos [192.168.69.67]) by gatekeeper.pp.dyndns.biz (8.14.2/8.14.2) with ESMTP id n0OHvQMH008473 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Sat, 24 Jan 2009 18:57:27 +0100 (CET) (envelope-from pp@pp.dyndns.biz) Message-ID: <497B5686.8050600@pp.dyndns.biz> Date: Sat, 24 Jan 2009 18:57:26 +0100 From: Pojken Purken User-Agent: Thunderbird 2.0.0.19 (X11/20090102) MIME-Version: 1.0 To: FreeBSD Questions References: <20090124124535.3006687c@gumby.homeunix.com> <9a52b1190901240451i14dc544fm1c241d6f43fa897b@mail.gmail.com> <20090124131629.1f9fabe4@gumby.homeunix.com> <497B2536.7030907@pp.dyndns.biz> <20090124174357.4aafcf1a@gumby.homeunix.com> In-Reply-To: <20090124174357.4aafcf1a@gumby.homeunix.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Subject: Re: default CFLAGS X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Jan 2009 18:18:01 -0000 RW wrote: > On Sat, 24 Jan 2009 15:27:02 +0100 > Morgan Wesström wrote: > > >> The section "options enabled" will list them all. I usually only add >> "-march=native" to my CFLAGS to enable a few more CPU specific >> optimizations. > > If you set CPUTYPE, -march is set to match, so setting -march=native > should be redundant. OTOH a number of other make variables are defined > from CPUTYPE, so if you set -march=native, but not CPUTYPE you might > miss some optimisations based on build options. > > I've no idea whether there are any such options, just that you're > probably not going to do better than setting CPUTYPE, and leaving the > rest alone. I'm sorry I was unclear. I set CPUTYPE to native of course which is then passed as -march=native to compiler.