From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 48498 invoked by alias); 22 Nov 2017 00:19:23 -0000 Mailing-List: contact libstdc++-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libstdc++-owner@gcc.gnu.org Received: (qmail 48472 invoked by uid 89); 22 Nov 2017 00:19:23 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.8 required=5.0 tests=AWL,BAYES_00,KB_WAM_FROM_NAME_SINGLEWORD,RCVD_IN_DNSWL_NONE,SPF_PASS,URIBL_RED autolearn=no version=3.3.2 spammy=Hx-languages-length:638, H*f:sk:fde2443, H*f:sk:755dc78, H*c:HHHHH X-Spam-User: qpsmtpd, 3 recipients X-HELO: relay1.mentorg.com Received: from relay1.mentorg.com (HELO relay1.mentorg.com) (192.94.38.131) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 22 Nov 2017 00:19:22 +0000 Received: from nat-ies.mentorg.com ([192.94.31.2] helo=SVR-IES-MBX-03.mgc.mentorg.com) by relay1.mentorg.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-SHA384:256) id 1eHIl4-0002RI-NQ from joseph_myers@mentor.com ; Tue, 21 Nov 2017 16:19:18 -0800 Received: from digraph.polyomino.org.uk (137.202.0.87) by SVR-IES-MBX-03.mgc.mentorg.com (139.181.222.3) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Wed, 22 Nov 2017 00:19:15 +0000 Received: from jsm28 (helo=localhost) by digraph.polyomino.org.uk with local-esmtp (Exim 4.86_2) (envelope-from ) id 1eHIl0-0007Jx-UK; Wed, 22 Nov 2017 00:19:15 +0000 Date: Wed, 22 Nov 2017 00:19:00 -0000 From: Joseph Myers To: Florian Weimer CC: Ed Smith-Rowland <3dw4rd@verizon.net>, Jonathan Wakely , "libstdc++@gcc.gnu.org" , gcc-patches , Jonathan Wakely , Subject: Re: [PATCH libstdc++/66689] comp_ellint_3 and ellint_3 return garbage values In-Reply-To: <8c63977a-6d6c-44b9-876b-5d01bd38e95b@redhat.com> Message-ID: References: <755dc780-d676-65ca-ba9b-81a4bf80a3f3@verizon.net> <20171117205429.GA31922@redhat.com> <8c63977a-6d6c-44b9-876b-5d01bd38e95b@redhat.com> User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="-1152306461-992846232-1511309954=:22000" X-ClientProxiedBy: svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) To SVR-IES-MBX-03.mgc.mentorg.com (139.181.222.3) X-SW-Source: 2017-11/txt/msg00090.txt.bz2 ---1152306461-992846232-1511309954=:22000 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Content-length: 565 On Tue, 21 Nov 2017, Florian Weimer wrote: > On 11/18/2017 05:49 PM, Ed Smith-Rowland wrote: > > I feel that distros are likely to pick up gcc-7 soon and I'd like to do > > *something*.  This would be something of a transition path. > > Historically, in glibc, we would have used symbol versioning for this, so that > existing binaries retain the old behavior. The downside is that blind However, when cproj was fixed, having computed completely the wrong function (glibc bug 10401), no symbol versioning was used. -- Joseph S. Myers joseph@codesourcery.com ---1152306461-992846232-1511309954=:22000--