From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29036 invoked by alias); 27 Feb 2015 13:49:50 -0000 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 Received: (qmail 28984 invoked by uid 48); 27 Feb 2015 13:49:47 -0000 From: "mstahl at redhat dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug ipa/64812] [4.9 regression] x86 LibreOffice Build failure: undefined reference to acquire Date: Fri, 27 Feb 2015 14:23:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: ipa X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mstahl at redhat dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.9.3 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-02/txt/msg03066.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64812 Michael Stahl changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dtardon at redhat dot com --- Comment #9 from Michael Stahl --- (In reply to Markus Trippelsdorf from comment #8) > Also happens with gcc-5 when linking two different LibreOffice libraries. > (libscfiltlo.so and libooxlo.so) > > The undefined symbol is: > x4 ~ # c++filt _ZThn40_N3utl28OSeekableOutputStreamWrapper7acquireEv > non-virtual thunk to utl::OSeekableOutputStreamWrapper::acquire() interesting ... you are building LO 4.4.1.1 or older? looking at the git log there is this apparent work-around: http://cgit.freedesktop.org/libreoffice/core/commit/?id=8bb0446974282b32d06cdbd35af83f91e033b4af not sure if it's the same bug... in case this is triggered by some sort of de-virtualization new in GCC5 then i guess it is LO's fault because the acquire() / release() was not dll-exported. i will push that to the libreoffice-4-3 release branch to get it into 4.3.7. (i've only tried to build current master, which works fine now with workaround for the bug from the description)