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diff --git a/libstdc++-v3/libsupc++/cxxabi-forced.h b/libstdc++-v3/libsupc++/cxxabi-forced.h
new file mode 100644
index 00000000000..523ccba01a6
--- /dev/null
+++ b/libstdc++-v3/libsupc++/cxxabi-forced.h
@@ -0,0 +1,51 @@
+// cxxabi.h subset for inclusion by other library headers -*- C++ -*-
+  
+// Copyright (C) 2007 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC 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.
+// 
+// GCC 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 GCC; see the file COPYING.  If not, write to
+// the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+// Boston, MA 02110-1301, USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#ifndef _CXXABI_FORCED_H
+#define _CXXABI_FORCED_H 1
+
+#pragma GCC visibility push(default)
+
+#ifdef __cplusplus
+namespace __cxxabiv1
+{  
+  // A magic placeholder class that can be caught by reference
+  // to recognize forced unwinding.
+  class __forced_unwind
+  {
+    virtual ~__forced_unwind() throw();
+    virtual void __pure_dummy() = 0; // prevent catch by value
+  };
+}
+#endif // __cplusplus
+
+#pragma GCC visibility pop
+
+#endif // __CXXABI_FORCED_H