--- dinkumware_bugged.hpp	2011-10-13 15:21:15.781791400 -0400
+++ dinkumware.hpp	2011-10-13 15:15:30.349791400 -0400
@@ -109,7 +109,7 @@
 #  define BOOST_NO_NUMERIC_LIMITS_LOWEST
 #endif
 
-#if !defined(_HAS_TR1_IMPORTS) && !defined(BOOST_NO_0X_HDR_TUPLE)
+#if (!defined(_HAS_TR1_IMPORTS) || _HAS_TR1_IMPORTS == 0) && !defined(BOOST_NO_0X_HDR_TUPLE)
 #  define BOOST_NO_0X_HDR_TUPLE
 #endif
 //