[Boost-bugs] [Boost C++ Libraries] #4395: Intel 11.1 defines _GNU_SOURCE, breaking the get_nprocs test in thread.cpp

Subject: [Boost-bugs] [Boost C++ Libraries] #4395: Intel 11.1 defines _GNU_SOURCE, breaking the get_nprocs test in thread.cpp
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-06-29 21:54:47

#4395: Intel 11.1 defines _GNU_SOURCE, breaking the get_nprocs test in thread.cpp
-----------------------------------------------------+----------------------
 Reporter:  Robert Lupton <rhl@…>                    |       Owner:  anthonyw
     Type:  Bugs                                     |      Status:  new     
Milestone:  Boost 1.44.0                             |   Component:  thread  
  Version:  Boost Development Trunk                  |    Severity:  Problem 
 Keywords:                                           |  
-----------------------------------------------------+----------------------
 In a bug related to #2053, there's code in
 `libs/thread/src/pthread/thread.cpp` that attempts to only call
 `get_nprocs` on gnu platforms that define _GNU_SOURCE (cf.
 http://lists.boost.org/Archives/boost/2010/05/166414.php)

 Unfortunately, intel 11.1 appears to define _GNU_SOURCE, but not provide
 get_nprocs:
 {{{
 $ icpc --version
 icpc (ICC) 11.1 20100401
 Copyright (C) 1985-2010 Intel Corporation.  All rights reserved.

 $ icpc intelSymbols.cc
 intelSymbols.cc(2): catastrophic error: #error directive: "_GNU_SOURCE is
 defined"
   #error "_GNU_SOURCE is defined"
    ^

 compilation aborted for intelSymbols.cc (code 4)
 $ cat !$
 cat intelSymbols.cc
 #if defined(_GNU_SOURCE)
 #error "_GNU_SOURCE is defined"
 #endif
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4395>
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