Include bind in ndnboost.
diff --git a/ndnboost/bind/arg.hpp b/ndnboost/bind/arg.hpp
new file mode 100644
index 0000000..7551575
--- /dev/null
+++ b/ndnboost/bind/arg.hpp
@@ -0,0 +1,62 @@
+#ifndef BOOST_BIND_ARG_HPP_INCLUDED
+#define BOOST_BIND_ARG_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// bind/arg.hpp
+//
+// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
+//
+// 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/bind/bind.html for documentation.
+//
+
+#include <ndnboost/config.hpp>
+#include <ndnboost/is_placeholder.hpp>
+
+namespace ndnboost
+{
+
+template< int I > struct arg
+{
+ arg()
+ {
+ }
+
+ template< class T > arg( T const & /* t */ )
+ {
+ // static assert I == is_placeholder<T>::value
+ typedef char T_must_be_placeholder[ I == is_placeholder<T>::value? 1: -1 ];
+ }
+};
+
+template< int I > bool operator==( arg<I> const &, arg<I> const & )
+{
+ return true;
+}
+
+#if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION )
+
+template< int I > struct is_placeholder< arg<I> >
+{
+ enum _vt { value = I };
+};
+
+template< int I > struct is_placeholder< arg<I> (*) () >
+{
+ enum _vt { value = I };
+};
+
+#endif
+
+} // namespace ndnboost
+
+#endif // #ifndef BOOST_BIND_ARG_HPP_INCLUDED