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diff --git a/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs-1.cc b/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs-1.cc
new file mode 100644
index 00000000..6c21a1e7
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/make_signed/requirements/typedefs-1.cc
@@ -0,0 +1,65 @@
+// { dg-options "-std=gnu++0x" }
+
+// 2007-05-03  Benjamin Kosnik  <bkoz@redhat.com>
+//
+// Copyright (C) 2007, 2008, 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/>.
+
+#include <type_traits>
+#include <testsuite_hooks.h>
+
+enum test_enum { first_selection };
+
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  using std::make_signed;
+  using std::is_same;
+  using std::is_signed;
+
+  // Positive tests.
+  typedef make_signed<const int>::type  	test2_type;
+  VERIFY( (is_same<test2_type, const int>::value) );
+
+  typedef make_signed<const unsigned int>::type  	test21c_type;
+  VERIFY( (is_same<test21c_type, const signed int>::value) );
+
+  typedef make_signed<volatile unsigned int>::type  	test21v_type;
+  VERIFY( (is_same<test21v_type, volatile signed int>::value) );
+
+  typedef make_signed<const volatile unsigned int>::type  	test21cv_type;
+  VERIFY( (is_same<test21cv_type, const volatile signed int>::value) );
+
+  typedef make_signed<const char>::type  	test22_type;
+  VERIFY( (is_same<test22_type, const signed char>::value) );
+
+#ifdef _GLIBCXX_USE_WCHAR_T
+  typedef make_signed<volatile wchar_t>::type  	test23_type;
+  VERIFY( (is_same<test23_type, volatile signed wchar_t>::value) );
+#endif
+
+  // Chapter 48, chapter 20. Smallest rank such that new signed type same size.
+  typedef make_signed<test_enum>::type  	test25_type;
+  VERIFY( is_signed<test25_type>::value );
+  VERIFY( sizeof(test25_type) == sizeof(test_enum) );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}