From bdcd06c4cc1971d763e528b8cb1d0f16fcc5ecf4 Mon Sep 17 00:00:00 2001
From: Philippe Daouadi <pdaouadi@aldebaran-robotics.com>
Date: Wed, 15 Apr 2015 09:34:00 +0200
Subject: [PATCH] Use BOOST_ATTRIBUTE_UNUSED from boost/config

---
 include/boost/concept/detail/general.hpp | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/include/boost/concept/detail/general.hpp b/include/boost/concept/detail/general.hpp
index c88a1ed..525ea65 100644
--- a/include/boost/concept/detail/general.hpp
+++ b/include/boost/concept/detail/general.hpp
@@ -4,6 +4,7 @@
 #ifndef BOOST_CONCEPT_DETAIL_GENERAL_DWA2006429_HPP
 # define BOOST_CONCEPT_DETAIL_GENERAL_DWA2006429_HPP
 
+# include <boost/config.hpp>
 # include <boost/preprocessor/cat.hpp>
 # include <boost/concept/detail/backward_compatibility.hpp>
 
@@ -65,19 +66,11 @@ struct requirement_<void(*)(Model)>
   
 # endif
 
-// Version check from https://svn.boost.org/trac/boost/changeset/82886
-// (boost/static_assert.hpp)
-#if defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7))) 
-#define BOOST_CONCEPT_UNUSED_TYPEDEF __attribute__((unused))
-#else
-#define BOOST_CONCEPT_UNUSED_TYPEDEF /**/
-#endif
-
 #  define BOOST_CONCEPT_ASSERT_FN( ModelFnPtr )             \
     typedef ::boost::concepts::detail::instantiate<          \
     &::boost::concepts::requirement_<ModelFnPtr>::failed>    \
       BOOST_PP_CAT(boost_concept_check,__LINE__)             \
-      BOOST_CONCEPT_UNUSED_TYPEDEF
+      BOOST_ATTRIBUTE_UNUSED
 
 }}