ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/regex/regex_traits.hpp b/include/ndnboost/regex/regex_traits.hpp
new file mode 100644
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--- /dev/null
+++ b/include/ndnboost/regex/regex_traits.hpp
@@ -0,0 +1,35 @@
+/*
+ *
+ * Copyright (c) 1998-2002
+ * John Maddock
+ *
+ * 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)
+ *
+ */
+
+ /*
+ * LOCATION: see http://www.boost.org for most recent version.
+ * FILE regex_traits.hpp
+ * VERSION see <ndnboost/version.hpp>
+ * DESCRIPTION: Declares regular expression traits classes.
+ */
+
+#ifndef NDNBOOST_REGEX_TRAITS_HPP
+#define NDNBOOST_REGEX_TRAITS_HPP
+
+#ifndef NDNBOOST_REGEX_CONFIG_HPP
+# include <ndnboost/regex/config.hpp>
+#endif
+
+# ifndef NDNBOOST_REGEX_TRAITS_HPP_INCLUDED
+# include <ndnboost/regex/v4/regex_traits.hpp>
+# endif
+
+#endif // include
+
+
+
+
+