--- old/src/hotspot/os/posix/os_posix.hpp	2018-05-17 15:55:05.529685801 -0400
+++ new/src/hotspot/os/posix/os_posix.hpp	2018-05-17 15:55:05.204655631 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2018, 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
@@ -64,6 +64,7 @@
 
   // Returns true if signal is valid.
   static bool is_valid_signal(int sig);
+  static bool is_sig_ignored(int sig);
 
   // Helper function, returns a string (e.g. "SIGILL") for a signal.
   // Returned string is a constant. For unknown signals "UNKNOWN" is returned.