Include bind in ndnboost.
diff --git a/ndnboost/test/utils/assign_op.hpp b/ndnboost/test/utils/assign_op.hpp
new file mode 100644
index 0000000..b3d7ca0
--- /dev/null
+++ b/ndnboost/test/utils/assign_op.hpp
@@ -0,0 +1,41 @@
+// (C) Copyright Gennadiy Rozental 2005-2008.
+// 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/test for the library home page.
+//
+// File : $RCSfile$
+//
+// Version : $Revision: 49312 $
+//
+// Description : overloadable assignment
+// ***************************************************************************
+
+#ifndef BOOST_TEST_ASSIGN_OP_033005GER
+#define BOOST_TEST_ASSIGN_OP_033005GER
+
+namespace ndnboost {
+
+namespace unit_test {
+
+// ************************************************************************** //
+// ************** generic assign operator ************** //
+// ************************************************************************** //
+
+// generic
+template<typename T,typename S>
+inline void
+assign_op( T& t, S const& s, long )
+{
+ t = s;
+}
+
+//____________________________________________________________________________//
+
+} // namespace unit_test
+
+} // namespace ndnboost
+
+#endif // BOOST_TEST_ASSIGN_OP_033005GER
+