--- a/src/hotspot/os/bsd/os_bsd.hpp	Mon Nov 20 09:46:55 2017 +0000
+++ b/src/hotspot/os/bsd/os_bsd.hpp	Mon Nov 20 15:56:32 2017 -0500
@@ -74,7 +74,6 @@
 
   static void hotspot_sigmask(Thread* thread);
 
-  static bool is_initial_thread(void);
   static pid_t gettid();
 
   static int page_size(void)                                        { return _page_size; }