From 64e9b6ef07b2f9e00e4ddd0956b3d27344d73393 Mon Sep 17 00:00:00 2001
From: John Maddock <john@johnmaddock.co.uk>
Date: Mon, 27 Sep 2010 12:15:03 +0000
Subject: [PATCH] Add missing #include.

[SVN r65626]
---
 include/boost/type_traits/common_type.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/type_traits/common_type.hpp b/include/boost/type_traits/common_type.hpp
index 6e54290..f316ad9 100644
--- a/include/boost/type_traits/common_type.hpp
+++ b/include/boost/type_traits/common_type.hpp
@@ -48,7 +48,7 @@
 #include <boost/type_traits/remove_cv.hpp>
 #endif
 #include <boost/mpl/if.hpp>
-//#include <boost/type_traits/declval.hpp>
+#include <boost/utility/declval.hpp>
 #include <boost/type_traits/add_rvalue_reference.hpp>
 
 //----------------------------------------------------------------------------//