--- a/src/hotspot/share/runtime/safepoint.hpp	Wed Apr 18 15:57:19 2018 +0200
+++ b/src/hotspot/share/runtime/safepoint.hpp	Wed Apr 18 10:39:40 2018 -0400
@@ -28,6 +28,7 @@
 #include "asm/assembler.hpp"
 #include "code/nmethod.hpp"
 #include "memory/allocation.hpp"
+#include "runtime/atomic.hpp"
 #include "runtime/extendedPC.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "runtime/os.hpp"