Added boost header

test/external/boost/variant/detail/bool_trait_def.hpp

@@ -0,0 +1,30 @@
+//-----------------------------------------------------------------------------
+// boost/variant/detail/bool_trait_def.hpp header file
+// See http://www.boost.org for updates, documentation, and revision history.
+//-----------------------------------------------------------------------------
+//
+// Copyright (c) 2003
+// Eric Friedman
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// Needed until move-related traits incorporated into type_traits library.
+// no include guards, the header is intended for multiple inclusion!
+
+// should be the last #include
+#include "boost/type_traits/detail/bool_trait_def.hpp"
+
+#define BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1(trait,T,C) \
+template< typename T > struct trait \
+    BOOST_TT_AUX_BOOL_C_BASE(C) \
+{ \
+    BOOST_TT_AUX_BOOL_TRAIT_VALUE_DECL(C) \
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,trait,(T)) \
+}; \
+/**/
+
+#define BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(arity, name) \
+BOOST_TT_AUX_TEMPLATE_ARITY_SPEC(arity, name) \
+/**/