ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/iostreams/detail/config/limits.hpp b/include/ndnboost/iostreams/detail/config/limits.hpp
new file mode 100644
index 0000000..cc83aec
--- /dev/null
+++ b/include/ndnboost/iostreams/detail/config/limits.hpp
@@ -0,0 +1,19 @@
+// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
+// (C) Copyright 2003-2007 Jonathan Turkanis
+// 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/iostreams for documentation.
+
+#ifndef NDNBOOST_IOSTREAMS_DETAIL_CONFIG_LIMITS_HPP_INCLUDED
+#define NDNBOOST_IOSTREAMS_DETAIL_CONFIG_LIMITS_HPP_INCLUDED
+
+#ifndef NDNBOOST_IOSTREAMS_MAX_FORWARDING_ARITY
+# define NDNBOOST_IOSTREAMS_MAX_FORWARDING_ARITY 3
+#endif
+
+#ifndef NDNBOOST_IOSTREAMS_MAX_EXECUTE_ARITY
+# define NDNBOOST_IOSTREAMS_MAX_EXECUTE_ARITY 5
+#endif
+
+#endif // #ifndef NDNBOOST_IOSTREAMS_DETAIL_CONFIG_LIMITS_HPP_INCLUDED