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diff --git a/libstdc++-v3/testsuite/27_io/basic_ostringstream/pthread3.cc b/libstdc++-v3/testsuite/27_io/basic_ostringstream/pthread3.cc
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+++ b/libstdc++-v3/testsuite/27_io/basic_ostringstream/pthread3.cc
@@ -0,0 +1,57 @@
+// 2002-01-23  Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org>
+// Adpated from libstdc++/5347 submitted by markus.breuer@materna.de
+//
+// Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2009
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* } }
+// { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* } }
+// { dg-options "-pthreads" { target *-*-solaris* } }
+
+#include <sstream>
+#include <pthread.h>
+
+const int max_thread_count = 2;
+const int max_loop_count = 1000000;
+
+void*
+thread_main (void *)
+{
+   for (int i = 0; i < max_loop_count; i++)
+     std::ostringstream oss;
+
+   return 0;
+}
+
+int
+main()
+{
+  pthread_t tid[max_thread_count];
+
+#if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500
+  pthread_setconcurrency (max_thread_count);
+#endif
+
+  for (int i = 0; i < max_thread_count; i++)
+    pthread_create (&tid[i], NULL, thread_main, 0);
+
+  for (int i = 0; i < max_thread_count; i++)
+    pthread_join (tid[i], NULL);
+
+  return 0;
+}