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-rw-r--r--boost/intrusive/trivial_value_traits.hpp8
1 files changed, 4 insertions, 4 deletions
diff --git a/boost/intrusive/trivial_value_traits.hpp b/boost/intrusive/trivial_value_traits.hpp
index 18d28be92c..03deb162d6 100644
--- a/boost/intrusive/trivial_value_traits.hpp
+++ b/boost/intrusive/trivial_value_traits.hpp
@@ -13,15 +13,15 @@
#ifndef BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP
#define BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP
-#if defined(_MSC_VER)
-# pragma once
-#endif
-
#include <boost/intrusive/detail/config_begin.hpp>
#include <boost/intrusive/intrusive_fwd.hpp>
#include <boost/intrusive/link_mode.hpp>
#include <boost/intrusive/pointer_traits.hpp>
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+# pragma once
+#endif
+
namespace boost {
namespace intrusive {