Index: bind/bind_function.hpp
===================================================================
--- bind/bind_function.hpp	(revision 73739)
+++ bind/bind_function.hpp	(working copy)
@@ -36,12 +36,12 @@
     >
     inline
     typename detail::expression::function_eval<
-        detail::function_ptr<1, RT, RT(*)(T0 &)>
+        detail::function_ptr<1, RT, RT(*)(T0)>
       , A0
     >::type const
-    bind(RT(*f)(T0 &), A0 const & a0)
+    bind(RT(*f)(T0), A0 const & a0)
     {
-        typedef detail::function_ptr<1, RT, RT(*)(T0 &)> fp_type;
+        typedef detail::function_ptr<1, RT, RT(*)(T0)> fp_type;
         return detail::expression::function_eval<fp_type, A0>::make(fp_type(f), a0);
     }