re PR libstdc++/45347 (concurrence.h: In constructor…

re PR libstdc++/45347 (concurrence.h: In constructor '__gnu_cxx::__cond::__cond()': /home/jayk/obj/gcc451/alphaev67-dec-osf5.1/libstdc++-v3/include/ext/concurrence.h:276:29: warning: missing initializer for member '__pthread_cond_t::__bloc)

2010-09-03  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/45347
	* include/ext/concurrence.h: Add #pragma GCC system_header.

From-SVN: r163848

libstdc++-v3/ChangeLog

+2010-09-03  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR libstdc++/45347
+	* include/ext/concurrence.h: Add #pragma GCC system_header.
+
 2010-09-03  François Dumont <francois.cppdevs@free.fr>
 
         * testsuite/lib/libstdc++.exp ([check_v3_target_debug_mode]): Fix so

libstdc++-v3/include/ext/concurrence.h

 // Support for concurrent programing -*- C++ -*-
 
-// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
 // Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
@@ -31,6 +31,8 @@
 #ifndef _CONCURRENCE_H
 #define _CONCURRENCE_H 1
 
+#pragma GCC system_header
+
 #include <exception>
 #include <bits/gthr.h> 
 #include <bits/functexcept.h>