From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3231 invoked by alias); 6 Oct 2012 19:27:05 -0000 Received: (qmail 3109 invoked by uid 48); 6 Oct 2012 19:26:50 -0000 From: "howarth at nitro dot med.uc.edu" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/54806] [4.7 Regression] Undefined symbols: "___emutls_v.*", ... on x86_64-apple-darwin12 Date: Sat, 06 Oct 2012 19:27:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: howarth at nitro dot med.uc.edu X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.7.3 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: 2012-10/txt/msg00562.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54806 --- Comment #17 from Jack Howarth 2012-10-06 19:26:49 UTC --- (In reply to comment #16) > > These changes will certainly keep config.h in the libstdc++-v3 build directory > > from having... > > > > #define HAVE_TLS > > Why? That seems odd. Not really. The use of the no-runtime-stubs.patch patch would keep the tests in config/tls.m4 for working properly as it breaks the ability of the xgcc compiler from accessing the emutls support calls residing in libgcc_ext.10.4/5. > > > Why is it so critical for MacPorts to eliminate the linkage on > > libgcc_ext.10.4/ libgcc_ext.10.5? > > Because it doesn't exist. This is the wrong approach. You shouldn't be trying to gut libgcc_ext from libstdc++-v3 but rather creating an additional splitoff for libgcc_s/libgcc_ext.10.4/5 so that they are kept at the latest level.