diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 45a8f019ebc..35b60289750 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,8 @@
+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
diff --git a/libstdc++-v3/include/ext/concurrence.h b/libstdc++-v3/include/ext/concurrence.h
index 71f8cd0a707..6f8e10bfeef 100644
--- a/libstdc++-v3/include/ext/concurrence.h
+++ b/libstdc++-v3/include/ext/concurrence.h
@@ -1,6 +1,6 @@
 // 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>