Index: boost/tr1/detail/config.hpp
===================================================================
--- boost/tr1/detail/config.hpp	(revision 83977)
+++ boost/tr1/detail/config.hpp	(working copy)
@@ -137,7 +137,7 @@
 // this here, in addition the feature pack for VC9
 // provides a more or less full TR1 implementation:
 //
-#  if defined(_HAS_TR1) && (_HAS_TR1 + 0)
+#  if (defined(_HAS_TR1) && (_HAS_TR1 + 0)) || (_MSC_VER >= 1700)
 #    define BOOST_HAS_TR1_ARRAY
 #    define BOOST_HAS_TR1_REFERENCE_WRAPPER
 #    define BOOST_HAS_TR1_RESULT_OF