From b6e98cdd5a01e8c82ee818710102ad3e2d941441 Mon Sep 17 00:00:00 2001
From: Neil Groves <neil@grovescomputing.com>
Date: Tue, 11 May 2010 18:30:04 +0000
Subject: [PATCH] Fixed defect that showed up with Visual C++ 10. This has been
 affecting numerous libraries as a knock-on effect.

[SVN r61916]
---
 include/boost/mpl/eval_if.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/boost/mpl/eval_if.hpp b/include/boost/mpl/eval_if.hpp
index 442194f..18d6a64 100644
--- a/include/boost/mpl/eval_if.hpp
+++ b/include/boost/mpl/eval_if.hpp
@@ -39,6 +39,7 @@ struct eval_if
 #else
     : if_<C,F1,F2>::type
 {
+	typedef typename if_<C,F1,F2>::type type;
 #endif
     BOOST_MPL_AUX_LAMBDA_SUPPORT(3,eval_if,(C,F1,F2))
 };
@@ -61,6 +62,7 @@ struct eval_if_c
 #else
     : if_c<C,F1,F2>::type
 {
+	typedef typename if_c<C,F1,F2>::type type;
 #endif
 };