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 4.60) (envelope-from ) id 1GmOSG-0002sy-8C for garchives@archives.gentoo.org; Tue, 21 Nov 2006 05:46:00 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.8/8.13.8) with SMTP id kAL5hu5S028945; Tue, 21 Nov 2006 05:43:56 GMT Received: from ender.volumehost.net (adsl-69-154-123-202.dsl.fyvlar.swbell.net [69.154.123.202]) by robin.gentoo.org (8.13.8/8.13.8) with ESMTP id kAL5ftC7009376 for ; Tue, 21 Nov 2006 05:41:55 GMT Received: from localhost (localhost [127.0.0.1]) by ender.volumehost.net (Postfix) with ESMTP id 0C0C9DC4E for ; Tue, 21 Nov 2006 05:41:54 +0000 (UTC) X-Virus-Scanned: amavisd-new at volumehost.net Received: from ender.volumehost.net ([127.0.0.1]) by localhost (ender.volumehost.net [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 1o5KrESf+Bd9 for ; Tue, 21 Nov 2006 05:41:52 +0000 (UTC) Received: from adsl-69-154-123-205.dsl.fyvlar.swbell.net (adsl-69-154-123-205.dsl.fyvlar.swbell.net [69.154.123.205]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ender.volumehost.net (Postfix) with ESMTP id D92C9E0C5 for ; Tue, 21 Nov 2006 05:41:52 +0000 (UTC) From: "Boyd Stephen Smith Jr." To: gentoo-user@lists.gentoo.org Subject: gcc optimization levels (was: Re: [gentoo-user] mplayer compilation) Date: Mon, 20 Nov 2006 23:42:06 -0600 User-Agent: KMail/1.9.5 References: <20061120142223.37691.qmail@web33815.mail.mud.yahoo.com> <20061120171801.ba55efae.hilse@web.de> <45621A74.2080107@ilievnet.com> In-Reply-To: <45621A74.2080107@ilievnet.com> X-Eric-Conspiracy: There is no conspiracy 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: multipart/signed; boundary="nextPart1965683.YKZVSzAnkX"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200611202342.11071.bss03@volumehost.net> X-Archives-Salt: 6cbb6f4e-51ce-4833-ab75-9008f9ce9205 X-Archives-Hash: 2b9cd16b3f81d530c51cd6243ee18624 --nextPart1965683.YKZVSzAnkX Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Monday 20 November 2006 15:13, Daniel Iliev wrote=20 about 'Re: [gentoo-user] mplayer compilation': > I don't think there is such an option for gcc "-O4". AFAIK the shorthand > optimization options are -O, -O0, -O1, -O2, -O3 and -Os" In addition to -Os, -O will accept any non-negative integer as an argument.= =20 Currently, anything above 3 does nothing extra. From what I understand,=20 there have been undocumented levels up to 6, but they have always been=20 considered unstable (which is why they never appeared in documentation). The quickest way to recognize a Gentoo ricer is someone that=20 has -O4, -O6, -O99 or something else equally stupid in their CFLAGS. -O3=20 is defensible, as it is at least *supposed to be* stable; anything higher=20 is just stupid. =2D- "If there's one thing we've established over the years, it's that the vast majority of our users don't have the slightest clue what's best for them in terms of package stability." =2D- Gentoo Developer Ciaran McCreesh --nextPart1965683.YKZVSzAnkX Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQBFYpGzq72nDbhDXToRAoc7AJ94lad9sTpk6CTQmuCMlKqBxRDQBACfeNzF uNjXM/EmZtfXtHVFV4rZ3bo= =LswE -----END PGP SIGNATURE----- --nextPart1965683.YKZVSzAnkX-- -- gentoo-user@gentoo.org mailing list