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diff --git a/gcc/testsuite/objc-obj-c++-shared/nsconstantstring-class.h b/gcc/testsuite/objc-obj-c++-shared/nsconstantstring-class.h
new file mode 100644
index 00000000000..485e39e6f08
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+++ b/gcc/testsuite/objc-obj-c++-shared/nsconstantstring-class.h
@@ -0,0 +1,51 @@
+/* A small NSConstantString implementation for use with the NeXT runtime.
+   Copyright (C) 2011 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 3, 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 COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef _test_suite_nsconstantstring_class_h_
+#define _test_suite_nsconstantstring_class_h_
+#ifdef __NEXT_RUNTIME__
+
+/* On full-fledged Mac OS X systems, NSConstantString is provided
+   as part of the Foundation framework.  However, on bare Darwin systems,
+   Foundation is not included, and hence there is no NSConstantString 
+   implementation to link against.
+
+   This code is derived from the GNU runtime's NXConstantString implementation.
+*/
+
+#include "objc-test-suite-types.h"
+
+extern TNS_STRING_REF_T _NSConstantStringClassReference;
+
+@interface NSConstantString
+{
+  Class isa;
+  char *c_string;
+  unsigned int len;
+}
+
++ (id) initialize;
+
+- (const char *) cString;
+- (unsigned int) length;
+
+@end
+
+#endif /* __NEXT_RUNTIME__ */
+#endif /* _test_suite_nsconstantstring_class_h_ */