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diff --git a/gnu/lib/libg++/g++-include/defs.hP b/gnu/lib/libg++/g++-include/defs.hP
new file mode 100644
index 000000000000..054f6a65c3d8
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+++ b/gnu/lib/libg++/g++-include/defs.hP
@@ -0,0 +1,57 @@
+// This may look like C code, but it is really -*- C++ -*-
+/* 
+Copyright (C) 1988 Free Software Foundation
+    written by Doug Lea (dl@rocky.oswego.edu)
+
+This file is part of the GNU C++ Library.  This library is free
+software; you can redistribute it and/or modify it under the terms of
+the GNU Library General Public License as published by the Free
+Software Foundation; either version 2 of the License, 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 Library General Public License for more details.
+You should have received a copy of the GNU Library General Public
+License along with this library; if not, write to the Free Software
+Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+#ifndef _<T>defs_h
+#define _<T>defs_h 1
+
+
+// equality operator
+#ifndef <T>EQ
+#define <T>EQ(a, b)  ((a) == (b))
+#endif
+
+// less-than-or-equal
+#ifndef <T>LE
+#define <T>LE(a, b)  ((a) <= (b))
+#endif
+
+// comparison : less-than -> < 0; equal -> 0; greater-than -> > 0
+#ifndef <T>CMP
+#define <T>CMP(a, b) ( ((a) <= (b))? (((a) == (b))? 0 : -1) : 1 )
+#endif
+
+// hash function
+#ifndef <T>HASH
+extern unsigned int hash(<T&>);
+#define <T>HASH(x)  hash(x)
+#endif
+
+// initial capacity for structures requiring one
+
+#ifndef DEFAULT_INITIAL_CAPACITY
+#define DEFAULT_INITIAL_CAPACITY 100
+#endif
+
+// HASHTABLE_TOO_CROWDED(COUNT, SIZE) is true iff a hash table with COUNT
+// elements and SIZE slots is too full, and should be resized.
+// This is so if available space is less than 1/8.
+
+#define HASHTABLE_TOO_CROWDED(COUNT, SIZE) ((SIZE) - ((SIZE) >> 3) <= (COUNT))
+
+#endif