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diff --git a/libstdc++-v3/testsuite/26_numerics/headers/numeric/parallel_numeric_mixed2.cc b/libstdc++-v3/testsuite/26_numerics/headers/numeric/parallel_numeric_mixed2.cc
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+++ b/libstdc++-v3/testsuite/26_numerics/headers/numeric/parallel_numeric_mixed2.cc
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+// { dg-do compile }
+// { dg-require-parallel-mode "" }
+// { dg-options "-fopenmp" { target *-*-* } }
+
+// Copyright (C) 2007 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 2, 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 COPYING. If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// Make sure to test without _GLIBCXX_PARALLEL
+#ifdef _GLIBCXX_PARALLEL
+# undef _GLIBCXX_PARALLEL
+#endif
+
+#include <parallel/numeric>
+#include <numeric>
+#include <vector>
+#include <numeric>
+
+void test()
+{
+ typedef unsigned short value_type;
+ typedef std::vector<value_type> vector_type;
+
+ const value_type c(0);
+
+ vector_type v(10);
+ std::accumulate(v.begin(), v.end(), value_type(1));
+ __gnu_parallel::accumulate(v.begin(), v.end(), value_type(1));
+}