--- /dev/null
+/*=============================================================================
+ Copyright (c) 2001-2011 Joel de Guzman
+ Copyright (c) 2005 Eric Niebler
+
+ 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)
+==============================================================================*/
+#if !defined(BOOST_FUSION_CONS_FWD_HPP_INCLUDED)
+#define BOOST_FUSION_CONS_FWD_HPP_INCLUDED
+
+namespace boost { namespace fusion
+{
+ struct nil_;
+ #ifndef nil
+ typedef nil_ nil;
+ #endif
+
+ template <typename Car, typename Cdr = nil_>
+ struct cons;
+}}
+
+#endif
+