diff --git a/src/stl_port.cpp b/src/stl_port.cpp
new file mode 100644
index 0000000..343faa6
--- /dev/null
+++ b/src/stl_port.cpp
@@ -0,0 +1,42 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// stl_port.cpp: implementation of run-time casting of void pointers
+
+// (C) Copyright 2005 Robert Ramey - http://www.rrsd.com . 
+// 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)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#if (defined _MSC_VER) && (_MSC_VER == 1200)
+# pragma warning (disable : 4786) // too long name, harmless warning
+#endif
+
+// this befuddles the msvc 6 compiler so we can't use it
+#if ! ((defined _MSC_VER) && (_MSC_VER <= 1300)) 
+
+#include <boost/config.hpp>
+
+#if defined(__SGI_STL_PORT) && (__SGI_STL_PORT < 0x500)
+
+#include <boost/archive/codecvt_null.hpp>
+
+// explicit instantiation
+
+namespace std {
+
+template
+locale::locale(
+    const locale& __loc, boost::archive::codecvt_null<char> * __f
+);
+
+template
+locale::locale(
+    const locale& __loc, boost::archive::codecvt_null<wchar_t> * __f
+);
+
+} // namespace std
+
+#endif
+
+#endif