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-rw-r--r--boost/interprocess/sync/interprocess_recursive_mutex.hpp6
1 files changed, 5 insertions, 1 deletions
diff --git a/boost/interprocess/sync/interprocess_recursive_mutex.hpp b/boost/interprocess/sync/interprocess_recursive_mutex.hpp
index fcc0e97228..5da0c1f3b7 100644
--- a/boost/interprocess/sync/interprocess_recursive_mutex.hpp
+++ b/boost/interprocess/sync/interprocess_recursive_mutex.hpp
@@ -29,7 +29,11 @@
#if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
-#if defined(_MSC_VER)
+#ifndef BOOST_CONFIG_HPP
+# include <boost/config.hpp>
+#endif
+#
+#if defined(BOOST_HAS_PRAGMA_ONCE)
# pragma once
#endif