From owner-freebsd-stable@FreeBSD.ORG Thu Apr 9 22:43:32 2009 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1EC091065670 for ; Thu, 9 Apr 2009 22:43:32 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.delphij.net (delphij-pt.tunnel.tserv2.fmt.ipv6.he.net [IPv6:2001:470:1f03:2c9::2]) by mx1.freebsd.org (Postfix) with ESMTP id B5E958FC1F for ; Thu, 9 Apr 2009 22:43:31 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [211.166.10.233]) (using TLSv1 with cipher ADH-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by tarsier.delphij.net (Postfix) with ESMTPS id 5E7F02844E for ; Fri, 10 Apr 2009 06:43:30 +0800 (CST) Received: from localhost (tarsier.geekcn.org [211.166.10.233]) by tarsier.geekcn.org (Postfix) with ESMTP id B983CEC2D5E; Fri, 10 Apr 2009 06:43:29 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([211.166.10.233]) by localhost (mail.geekcn.org [211.166.10.233]) (amavisd-new, port 10024) with ESMTP id oNfCGae7GeqU; Fri, 10 Apr 2009 06:43:21 +0800 (CST) Received: from charlie.delphij.net (adsl-76-237-33-62.dsl.pltn13.sbcglobal.net [76.237.33.62]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTPSA id A0564EC2D52; Fri, 10 Apr 2009 06:43:18 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:cc:subject:references:in-reply-to: x-enigmail-version:openpgp:content-type:content-transfer-encoding; b=PKVZD9KfarUD0w/qWIvID3Wq6lb5IIFXVwWGbJSLsv48eBZ12CNNvE3i3Q+AQgZe7 1cF4NCVx1eNEy10461IUg== Message-ID: <49DE7A03.70409@delphij.net> Date: Thu, 09 Apr 2009 15:43:15 -0700 From: Xin LI Organization: The FreeBSD Project User-Agent: Thunderbird 2.0.0.21 (X11/20090408) MIME-Version: 1.0 To: Jose M Rodriguez References: <200904092120.n39LKRgl008326@orion.redesjm.local> In-Reply-To: <200904092120.n39LKRgl008326@orion.redesjm.local> X-Enigmail-Version: 0.95.7 OpenPGP: id=18EDEBA0; url=http://www.delphij.net/delphij.asc Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: stable@freebsd.org Subject: Re: libc ABI changes in RELENG_7 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: d@delphij.net List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Apr 2009 22:43:32 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Jose, Jose M Rodriguez wrote: > Hi > Building a samba package in a recent RELENG_7 box and install on a > 7.1-RELEASE system I found ABI changes that make ldconfig fail. > > This is related to a new strndup symbol in libc that samba build autodetect > and use. This is really necesary? The only way to guarantee a package is usable under 7.1-RELEASE is to build it under a 7.1-RELEASE chroot or jail, when building it on a newer host system. That's said, we strive our best to maintain backward compatibility, i.e. make sure that newer FreeBSD versions would always run older binaries; we do want to keep some sort of upward compatibility, for instance, when you build a binary on newer FreeBSD version, it's *likely* that it can be run on older FreeBSD version, but this is not strictly guaranteed or we can not add any new functionalities into new FreeBSD versions. I personally feel very strongly against of not having a POSIX-defined libc function just because older 7.x does not have it, unless we want the whole 7.x branch to be EoL'ed soon. Cheers, - -- Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (FreeBSD) iEYEARECAAYFAkneeYgACgkQi+vbBBjt66CUlwCeJINd92n72WiiV1fBkwR6Oisp KCkAoMDxWdNd3r1654Vddf+ZFmOILrH0 =wJnZ -----END PGP SIGNATURE-----