Index: call_traits.hpp
===================================================================
--- call_traits.hpp	(revision 3)
+++ call_traits.hpp	(working copy)
@@ -92,7 +92,7 @@
    typedef T& param_type;  // hh removed const
 };
 
-#if BOOST_WORKAROUND( __BORLANDC__,  BOOST_TESTED_AT( 0x581 ) )
+#if BOOST_WORKAROUND( __BORLANDC__,  < 0x5A0 )
 // these are illegal specialisations; cv-qualifies applied to
 // references have no effect according to [8.3.2p1],
 // C++ Builder requires them though as it treats cv-qualified