From ed6115361006240e3c7b02295599e4534cc55a13 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Sat, 19 Oct 2013 08:57:20 +0200
Subject: Update internal Boost subset to 1.54.0

---
 cutl/details/boost/type_traits/is_union.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'cutl/details/boost/type_traits/is_union.hpp')

diff --git a/cutl/details/boost/type_traits/is_union.hpp b/cutl/details/boost/type_traits/is_union.hpp
index fa7b1b6..2a4e482 100644
--- a/cutl/details/boost/type_traits/is_union.hpp
+++ b/cutl/details/boost/type_traits/is_union.hpp
@@ -25,7 +25,11 @@ namespace detail {
 template <typename T> struct is_union_impl
 {
    typedef typename remove_cv<T>::type cvt;
+#ifdef BOOST_IS_UNION
    BOOST_STATIC_CONSTANT(bool, value = BOOST_IS_UNION(cvt));
+#else
+   BOOST_STATIC_CONSTANT(bool, value = false);
+#endif
 };
 #else
 //
@@ -35,7 +39,11 @@ template <typename T> struct is_union_impl
 //
 template <typename T> struct is_union_impl
 {
+#ifdef BOOST_IS_UNION
    BOOST_STATIC_CONSTANT(bool, value = BOOST_IS_UNION(T));
+#else
+   BOOST_STATIC_CONSTANT(bool, value = false);
+#endif
 };
 #endif
 } // namespace detail
-- 
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