diff --git a/include/boost/pending/cstddef.hpp b/include/boost/pending/cstddef.hpp
deleted file mode 100644
index 440629e..0000000
--- a/include/boost/pending/cstddef.hpp
+++ /dev/null
@@ -1,16 +0,0 @@
-// -*- C++ -*- forwarding header.
-//  (C) Copyright Jeremy Siek 2004 
-//  Distributed under the Boost Software License, Version 1.0. (See
-//  accompanying file LICENSE_1_0.txt or copy at
-//  http://www.boost.org/LICENSE_1_0.txt)
-
-#ifndef BOOST_CSTDDEF_HPP
-#define BOOST_CSTDDEF_HPP
-
-#if defined(__sgi) && !defined(__GNUC__)
-# include <stddef.h>
-#else
-# include <cstddef>
-#endif
-
-#endif