From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7686 invoked by alias); 17 Sep 2014 15:49:12 -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 7666 invoked by uid 48); 17 Sep 2014 15:49:08 -0000 From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/63287] New: __STDCPP_THREADS__ is not defined Date: Wed, 17 Sep 2014 15:49:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 5.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: redi at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter Message-ID: 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: 2014-09/txt/msg01766.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63287 Bug ID: 63287 Summary: __STDCPP_THREADS__ is not defined Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: redi at gcc dot gnu.org 16.8 [cpp.predefined] in C++11 says: __STDCPP_THREADS__ Defined, and has the value integer constant 1, if and only if a program can have more than one thread of execution (1.10). I'm not sure what the best way to meet that requirement is, given that . For some platforms we could make -pthread imply -D__STDCPP_THREADS__, or maybe we just want to define it unconditionally in every gthr-xxx.h header except gthr-single.h