diff --git a/ndnboost/units/detail/utility.hpp b/ndnboost/units/detail/utility.hpp
new file mode 100644
index 0000000..47946be
--- /dev/null
+++ b/ndnboost/units/detail/utility.hpp
@@ -0,0 +1,104 @@
+// Boost.Units - A C++ library for zero-overhead dimensional analysis and 
+// unit/quantity manipulation and conversion
+//
+// Copyright (C) 2003-2008 Matthias Christian Schabel
+// Copyright (C) 2008 Steven Watanabe
+//
+// 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)
+
+#ifndef BOOST_UNITS_UTILITY_HPP
+#define BOOST_UNITS_UTILITY_HPP
+
+#include <cstdlib>
+#include <typeinfo>
+#include <string>
+
+#if defined(__GLIBCXX__) || defined(__GLIBCPP__)
+#define BOOST_UNITS_USE_DEMANGLING
+#include <cxxabi.h>
+#endif // __GNUC__
+
+#ifdef BOOST_UNITS_USE_DEMANGLING
+
+#include <ndnboost/algorithm/string/replace.hpp>
+
+namespace ndnboost {
+
+namespace units {
+
+namespace detail {
+
+inline
+std::string
+demangle(const char* name)
+{
+    // need to demangle C++ symbols
+    char*       realname;
+    std::size_t len; 
+    int         stat;
+     
+    realname = abi::__cxa_demangle(name,NULL,&len,&stat);
+    
+    if (realname != NULL)
+    {
+        std::string   out(realname);
+        
+        std::free(realname);
+        
+        ndnboost::replace_all(out,"ndnboost::units::","");
+        
+        return out;
+    }
+    
+    return std::string("demangle :: error - unable to demangle specified symbol");
+}
+
+} // namespace detail
+
+template<class L>
+std::string simplify_typename(const L& /*source*/)
+{
+    const std::string   demangled = detail::demangle(typeid(L).name());
+
+    return demangled;
+}
+
+} // namespace units
+
+} // namespace ndnboost
+
+#else // BOOST_UNITS_USE_DEMANGLING
+
+namespace ndnboost {
+
+namespace units {
+
+namespace detail {
+
+inline
+std::string
+demangle(const char* name)
+{
+    return name;
+}
+
+} // namespace detail
+
+template<class L>
+std::string simplify_typename(const L& /*source*/)
+{
+    return std::string(typeid(L).name());
+}
+
+} // namespace units
+
+} // namespace ndnboost
+
+// To get system-specific predefined macros:
+// gcc -arch ppc -dM -E - < /dev/null | sort 
+
+#endif // BOOST_UNITS_USE_DEMANGLING
+
+#endif // BOOST_UNITS_UTILITY_HPP