--- old/src/os_cpu/bsd_x86/vm/os_bsd_x86.hpp	2014-08-29 17:54:27.593213060 +0400
+++ new/src/os_cpu/bsd_x86/vm/os_bsd_x86.hpp	2014-08-29 17:54:27.481209820 +0400
@@ -36,4 +36,7 @@
   // Note: Currently only used in 64 bit Windows implementations
   static bool register_code_area(char *low, char *high) { return true; }
 
+  // Amount beyond the callee frame size that we bang the stack.
+  static int extra_bang_size_in_bytes();
+
 #endif // OS_CPU_BSD_X86_VM_OS_BSD_X86_HPP