Imported Upstream version 1.57.0

[platform/upstream/boost.git] / boost / unordered / unordered_map_fwd.hpp

diff --git a/boost/unordered/unordered_map_fwd.hpp b/boost/unordered/unordered_map_fwd.hpp
index 980bb3e..1eb26ce 100644 (file)
--- a/boost/unordered/unordered_map_fwd.hpp
+++ b/boost/unordered/unordered_map_fwd.hpp
@@ -6,11 +6,11 @@
 #ifndef BOOST_UNORDERED_MAP_FWD_HPP_INCLUDED
 #define BOOST_UNORDERED_MAP_FWD_HPP_INCLUDED
 
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
-# pragma once
+#include <boost/config.hpp>
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#pragma once
 #endif
 
-#include <boost/config.hpp>
 #include <memory>
 #include <functional>
 #include <boost/functional/hash_fwd.hpp>