--- /dev/null
+// Copyright Daniel Wallin, David Abrahams 2005. Use, modification and
+// distribution is 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)
+
+#ifndef BOOST_PARAMETER_CONFIG_050403_HPP
+#define BOOST_PARAMETER_CONFIG_050403_HPP
+
+#ifndef BOOST_PARAMETER_MAX_ARITY
+# define BOOST_PARAMETER_MAX_ARITY 5
+#endif
+
+#endif // BOOST_PARAMETER_CONFIG_050403_HPP
+