Index: thread.hpp
===================================================================
--- thread.hpp	(revision 58325)
+++ thread.hpp	(working copy)
@@ -414,6 +414,7 @@
             return !(thread_data<y.thread_data);
         }
 
+#   ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
         template<class charT, class traits>
         friend std::basic_ostream<charT, traits>& 
         operator<<(std::basic_ostream<charT, traits>& os, const id& x)
@@ -427,6 +428,7 @@
                 return os<<"{Not-any-thread}";
             }
         }
+#   endif
     };
 
     inline bool thread::operator==(const thread& other) const