diff --git a/include/boost/config/stdlib/stlport.hpp b/include/boost/config/stdlib/stlport.hpp
index 48b3b718..6df55b49 100644
--- a/include/boost/config/stdlib/stlport.hpp
+++ b/include/boost/config/stdlib/stlport.hpp
@@ -45,6 +45,17 @@
 #  define BOOST_NO_STRINGSTREAM
 #endif
 
+//
+// If the streams are not native, and we have a "using ::x" compiler bug
+// then the io stream facets are not available in namespace std::
+//
+#if !defined(_STLP_OWN_IOSTREAMS) && defined(_STLP_USE_NAMESPACES) && defined(BOOST_NO_USING_TEMPLATE)
+#  define BOOST_NO_STD_LOCALE
+#endif
+#if !defined(__SGI_STL_OWN_IOSTREAMS) && defined(__STL_USE_NAMESPACES) && defined(BOOST_NO_USING_TEMPLATE)
+#  define BOOST_NO_STD_LOCALE
+#endif
+
 //
 // Without member template support enabled, their are no template
 // iterate constructors, and no std::allocator: