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diff --git a/libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/wchar_t/12868.cc b/libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/wchar_t/12868.cc
new file mode 100644
index 00000000..b308cd0f
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/wchar_t/12868.cc
@@ -0,0 +1,61 @@
+// { dg-require-namedlocale "" }
+
+// Copyright (C) 2003, 2005, 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/>.
+
+// 27.8.1.4 Overridden virtual functions
+
+#include <ostream>
+#include <fstream>
+#include <locale>
+#include <string>
+#include <testsuite_hooks.h>
+
+// libstdc++/12868
+void test01()
+{
+  using namespace std;
+  bool test __attribute__((unused)) = true;
+
+  locale loc_is(locale("is_IS.UTF-8"));
+  
+  {
+    wofstream out("tmp_12868");
+    out << L"<? xml version=\"1.0\" encoding=\"UTF-8\" ?>\n";
+    out.imbue(loc_is);
+    VERIFY( out.rdbuf()->getloc() == loc_is );
+    out << L"<greeting>Hall\u00f3 heimur</greeting>\n";
+  }
+
+  {
+    wifstream in("tmp_12868");
+    wstring str;
+    getline(in, str);
+    if (str.find(L"encoding=\"UTF-8\"") != wstring::npos)
+      {
+	in.imbue(loc_is);
+	VERIFY( in.rdbuf()->getloc() == loc_is );
+      }
+    getline(in, str);
+    VERIFY( str == L"<greeting>Hall\u00f3 heimur</greeting>" );
+  }
+}
+
+int main()
+{
+  test01();
+}