From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25383 invoked by alias); 24 Jan 2013 19:42:35 -0000 Received: (qmail 25317 invoked by uid 48); 24 Jan 2013 19:42:16 -0000 From: "solomon.gibbs.lists at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/56066] g++ generates strong symbols conflicting with C99 extern inline code on Windows Date: Thu, 24 Jan 2013 19:42:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: solomon.gibbs.lists at gmail dot com X-Bugzilla-Status: UNCONFIRMED 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" Content-Transfer-Encoding: quoted-printable 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: 2013-01/txt/msg02330.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D56066 --- Comment #1 from Solomon Gibbs 20= 13-01-24 19:42:15 UTC --- I'm looking at the objdump -x output for the c++ object and I note that the= re's a separate section for the inlined function. It appears to be annotated wit= h a COMDAT field value of 4. According to skyfree.org/linux/references/coff.pdf= a value of 4 corresponds to IMAGE_COMDAT_SELECT_EXACT_MATCH: "The linker choo= ses an arbitrary section among the definitions for this symbol. A multiply defi= ned symbol error is issued if all definitions don=E2=80=99t match exactly." The= C99 symbol has no COMDAT selection field.