diff -r dfacdb971494 -r 881c5fbeb849 src/hotspot/share/prims/nativeLookup.cpp
--- a/src/hotspot/share/prims/nativeLookup.cpp	Thu Jan 31 01:17:41 2019 +0100
+++ b/src/hotspot/share/prims/nativeLookup.cpp	Thu Jan 31 10:31:39 2019 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -39,6 +39,7 @@
 #include "runtime/arguments.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/javaCalls.hpp"
+#include "runtime/os.inline.hpp"
 #include "runtime/sharedRuntime.hpp"
 #include "runtime/signature.hpp"
 #include "utilities/macros.hpp"