--- /dev/null
+// { dg-do compile }
+
+// Copyright (C) 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/>.
+
+#include <sstream>
+
+namespace std {
+ template <class charT, class traits, class Allocator>
+ class basic_stringbuf;
+ typedef basic_stringbuf<char> stringbuf;
+ typedef basic_stringbuf<wchar_t> wstringbuf;
+
+ template <class charT, class traits, class Allocator>
+ class basic_istringstream;
+ typedef basic_istringstream<char> istringstream;
+ typedef basic_istringstream<wchar_t> wistringstream;
+
+ template <class charT, class traits, class Allocator>
+ class basic_ostringstream;
+ typedef basic_ostringstream<char> ostringstream;
+ typedef basic_ostringstream<wchar_t> wostringstream;
+
+ template <class charT, class traits, class Allocator>
+ class basic_stringstream;
+ typedef basic_stringstream<char> stringstream;
+ typedef basic_stringstream<wchar_t> wstringstream;
+}