From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25228 invoked by alias); 3 Feb 2012 17:51:28 -0000 Received: (qmail 25217 invoked by uid 22791); 3 Feb 2012 17:51:27 -0000 X-SWARE-Spam-Status: No, hits=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 03 Feb 2012 17:51:14 +0000 From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/51906] thread lock test failures on darwin11 under Xcode 4.2 Date: Fri, 03 Feb 2012 17:51:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libstdc++ X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: redi at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: redi at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.7.0 X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2012-02/txt/msg00390.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51906 --- Comment #49 from Jonathan Wakely 2012-02-03 17:50:07 UTC --- (In reply to comment #46) > (In reply to comment #45) > > Then I think we have to disable __GTHREAD_RECURSIVE_MUTEX_INIT unconditionally > > on darwin. > > I hope not. > putting -mmacosx-version-min=10.6 - will cause the macro value to be 1060 - so > defeating it. One would not expect it to run on 10.7. So using -mmacosx-version-min=10.6 without also using the 10.6 SDK is pilot error? But if I understand correctly, 10.6 didn't define PTHREAD_MUTEX_RECURSIVE_INITIALIZER anyway, so using the 10.6 SDK would cause it to be undefined, so why not just disable __GTHREAD_RECURSIVE_MUTEX_INIT unconditionally? The only system that defines it (10.7) can't use it. > If one puts -mmacosx-version-min=10.6 and sysroots to the 10.6 SDK - *and* > then transfers the executable to a 10.6 system - then that should work. If > not, then I agree. Presumably it doesn't even need to be transferred to a 10.6 system, using the 10.6 SDK should mean the headers don't have the static initializer, so the pthread_mutex_init_function() will always be used to create a recursive mutex, and Greg says that works on 10.7