diff --git a/ndnboost/test/utils/runtime/env/modifier.hpp b/ndnboost/test/utils/runtime/env/modifier.hpp
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+//  (C) Copyright Gennadiy Rozental 2005-2008.
+//  Use, modification, and distribution are subject to 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 : defines variable modifiers
+// ***************************************************************************
+
+#ifndef BOOST_RT_ENV_MODIFIER_HPP_062604GER
+#define BOOST_RT_ENV_MODIFIER_HPP_062604GER
+
+// Boost.Runtime.Parameter
+#include <ndnboost/test/utils/runtime/config.hpp>
+
+// Boost.Test
+#include <ndnboost/test/utils/named_params.hpp>
+
+namespace ndnboost {
+
+namespace BOOST_RT_PARAM_NAMESPACE {
+
+namespace environment {
+
+// ************************************************************************** //
+// **************         environment variable modifiers       ************** //
+// ************************************************************************** //
+
+namespace {
+
+nfp::typed_keyword<cstring,struct global_id_t>   global_id;
+nfp::keyword<struct default_value_t>             default_value;
+nfp::keyword<struct interpreter_t>               interpreter;
+
+} // local namespace
+} // namespace environment
+
+} // namespace BOOST_RT_PARAM_NAMESPACE
+
+} // namespace ndnboost
+
+#endif // BOOST_RT_ENV_MODIFIER_HPP_062604GER