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diff --git a/boost/fiber/detail/spinlock_status.hpp b/boost/fiber/detail/spinlock_status.hpp
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+++ b/boost/fiber/detail/spinlock_status.hpp
@@ -0,0 +1,21 @@
+
+//          Copyright Oliver Kowalke 2017.
+// 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)
+
+#ifndef BOOST_FIBERS_SPINLOCK_STATUS_H
+#define BOOST_FIBERS_SPINLOCK_STATUS_H
+
+namespace boost {
+namespace fibers {
+namespace detail {
+
+enum class spinlock_status {
+    locked = 0,
+    unlocked
+};
+
+}}}
+
+#endif // BOOST_FIBERS_SPINLOCK_STATUS_H