From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-394789-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 20477 invoked by alias); 20 Jun 2012 21:15:08 -0000
Received: (qmail 20459 invoked by uid 22791); 20 Jun 2012 21:15:06 -0000
X-SWARE-Spam-Status: No, hits=-4.3 required=5.0	tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED
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; Wed, 20 Jun 2012 21:14:54 +0000
From: "dje at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/52887] Bootstrap on AIX failure: Undefined symbol: .std::function<void (std::__regex::_PatternCursor const&, std::__regex::_Results&)>::function(std::function<void (std::__regex::_PatternCursor const&, std::__regex::_Results&)> const&)
Date: Wed, 20 Jun 2012 21:15:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: bootstrap
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dje at gcc dot gnu.org
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: <bug-52887-4-n12OC09LWT@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-52887-4@http.gcc.gnu.org/bugzilla/>
References: <bug-52887-4@http.gcc.gnu.org/bugzilla/>
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: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2012-06/txt/msg01416.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52887

--- Comment #18 from David Edelsohn <dje at gcc dot gnu.org> 2012-06-20 21:14:36 UTC ---
Strangely, someone else is reporting a runtime error with the same symbol:

exec(): 0509-036 Cannot load program a.out because of the following errors:
rtld: 0712-001 Symbol
_ZNSt8functionIFvRKNSt7__regex14_PatternCursorERNS0_8_ResultsEEEC1ERKS7_
was referenced from module
/opt/freeware/lib/gcc/powerpc-ibm-aix6.1.0.0/4.7.1/ppc64/libstdc++.a(libstdc++.so.6),
but a runtime definition of the symbol was not found.
rtld: 0712-001 Symbol
_ZNSt8functionIFbRKNSt7__regex14_PatternCursorEEEC1ERKS5_ was
referenced from module
/opt/freeware/lib/gcc/powerpc-ibm-aix6.1.0.0/4.7.1/ppc64/libstdc++.a(libstdc++.so.6),
but a runtime definition of the symbol was not found.
rtld: 0712-002 fatal error: exiting.

Maybe the <regex> code is non-functional, but *something* is referencing the
symbol under certain circumstances. The kludge patch fixes it, so the missing
instantiation is a problem. In the shared library case, if the symbol really is
referenced, I don't know how this is working on GNU/Linux.