Include bind in ndnboost.
diff --git a/ndnboost/none.hpp b/ndnboost/none.hpp
new file mode 100644
index 0000000..58c32c6
--- /dev/null
+++ b/ndnboost/none.hpp
@@ -0,0 +1,28 @@
+// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
+//
+// 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)
+//
+// See http://www.boost.org/libs/optional for documentation.
+//
+// You are welcome to contact the author at:
+// fernando_cacciola@hotmail.com
+//
+#ifndef BOOST_NONE_17SEP2003_HPP
+#define BOOST_NONE_17SEP2003_HPP
+
+#include "ndnboost/none_t.hpp"
+
+// NOTE: Borland users have to include this header outside any precompiled headers
+// (bcc<=5.64 cannot include instance data in a precompiled header)
+// -- * To be verified, now that there's no unnamed namespace
+
+namespace ndnboost {
+
+none_t const none = (static_cast<none_t>(0)) ;
+
+} // namespace ndnboost
+
+#endif
+