--- old/src/hotspot/os/linux/os_share_linux.hpp	2018-05-18 08:57:08.138154641 -0400
+++ new/src/hotspot/os/linux/os_share_linux.hpp	2018-05-18 08:57:07.771120611 -0400
@@ -26,7 +26,6 @@
 #define OS_LINUX_VM_OS_SHARE_LINUX_HPP
 
 // misc
-void signalHandler(int, siginfo_t*, ucontext_t*);
 void handle_unexpected_exception(Thread* thread, int sig, siginfo_t* info, address pc, address adjusted_pc);
 #ifndef PRODUCT
 void continue_with_dump(void);