From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14974 invoked by alias); 10 Mar 2012 13:17:18 -0000 Received: (qmail 14965 invoked by uid 22791); 10 Mar 2012 13:17:18 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,TW_GM 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; Sat, 10 Mar 2012 13:17:03 +0000 From: "pluto at agmk dot net" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/52540] std::use_facet throws bad_cast when compiled with _GLIBCXX_DEBUG Date: Sat, 10 Mar 2012 13:17:00 -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: pluto at agmk dot net X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- 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: 2012-03/txt/msg00780.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52540 --- Comment #8 from Pawel Sikora 2012-03-10 13:16:45 UTC --- i've compared the .ii files with and without _GLIBCXX_DEBUG definition. the debug version doesn't contain 'extern template (...)' for some classes. i suppose there're odr violations (global locale objects?) in debug mode. it may work on linux due to elf's weak binding feature but explicit dllimport/export exposes problem on windows.