Include bind in ndnboost.
diff --git a/ndnboost/algorithm/string/constants.hpp b/ndnboost/algorithm/string/constants.hpp
new file mode 100644
index 0000000..232d0d8
--- /dev/null
+++ b/ndnboost/algorithm/string/constants.hpp
@@ -0,0 +1,36 @@
+// Boost string_algo library constants.hpp header file ---------------------------//
+
+// Copyright Pavol Droba 2002-2003.
+//
+// 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/ for updates, documentation, and revision history.
+
+#ifndef BOOST_STRING_CONSTANTS_HPP
+#define BOOST_STRING_CONSTANTS_HPP
+
+namespace ndnboost {
+ namespace algorithm {
+
+ //! Token compression mode
+ /*!
+ Specifies token compression mode for the token_finder.
+ */
+ enum token_compress_mode_type
+ {
+ token_compress_on, //!< Compress adjacent tokens
+ token_compress_off //!< Do not compress adjacent tokens
+ };
+
+ } // namespace algorithm
+
+ // pull the names to the boost namespace
+ using algorithm::token_compress_on;
+ using algorithm::token_compress_off;
+
+} // namespace ndnboost
+
+#endif // BOOST_STRING_CONSTANTS_HPP
+