Index: visualc.hpp
===================================================================
--- visualc.hpp	(revision 86799)
+++ visualc.hpp	(working copy)
@@ -171,7 +171,6 @@
 // C++11 features supported by VC++ 12 (aka 2013).
 //
 #if _MSC_FULL_VER < 180020827
-#  define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
 #  define BOOST_NO_CXX11_DELETED_FUNCTIONS
 #  define BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
 #  define BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS
@@ -194,6 +193,12 @@
 #define BOOST_NO_CXX11_USER_DEFINED_LITERALS
 #define BOOST_NO_CXX11_ALIGNAS
 #define BOOST_NO_CXX11_INLINE_NAMESPACES
+//
+// Although VC 2013 claims to support defaulted functions, it
+// does not support the =default construct. See
+// h t t p : / / m s d n . m i c r o s o f t . c o m / e n - u s / l i b r a r y / h h 4 0 9 2 9 3 . a s p x
+//
+#define BOOST_NO_CXX11_DEFAULTED_FUNCTIONS
 
 //
 // prefix and suffix headers: