Index: boost/mpl/has_xxx.hpp
===================================================================
--- boost/mpl/has_xxx.hpp	(revision 63192)
+++ boost/mpl/has_xxx.hpp	(working copy)
@@ -290,6 +290,8 @@
 #   if !defined(BOOST_MPL_HAS_XXX_NO_WRAPPED_TYPES)
 #     if BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
 #       define BOOST_MPL_HAS_XXX_NO_WRAPPED_TYPES 1
+#     else
+#       define BOOST_MPL_HAS_XXX_NO_WRAPPED_TYPES 0
 #     endif
 #   endif
 
@@ -297,18 +299,24 @@
 #     if (defined(BOOST_NO_EXPLICIT_FUNCTION_TEMPLATE_ARGUMENTS) \
           || BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, <= 0x0303))
 #       define BOOST_MPL_HAS_XXX_NO_EXPLICIT_TEST_FUNCTION 1
+#     else
+#       define BOOST_MPL_HAS_XXX_NO_EXPLICIT_TEST_FUNCTION 0
 #     endif
 #   endif
 
 #   if !defined(BOOST_MPL_HAS_XXX_NO_IMPLICIT_SUBSTITUTE_TEMPLATE)
 #     if BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, <= 0x0303)
 #       define BOOST_MPL_HAS_XXX_NO_IMPLICIT_SUBSTITUTE_TEMPLATE 1
+#     else
+#       define BOOST_MPL_HAS_XXX_NO_IMPLICIT_SUBSTITUTE_TEMPLATE 0
 #     endif
 #   endif
 
 #   if !defined(BOOST_MPL_HAS_XXX_NEEDS_TEMPLATE_SFINAE)
 #     if BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
 #       define BOOST_MPL_HAS_XXX_NEEDS_TEMPLATE_SFINAE 1
+#     else
+#       define BOOST_MPL_HAS_XXX_NEEDS_TEMPLATE_SFINAE 0
 #     endif
 #   endif