--- old/src/share/vm/gc/g1/concurrentMarkThread.hpp	2015-11-19 15:35:04.102129372 +0100
+++ new/src/share/vm/gc/g1/concurrentMarkThread.hpp	2015-11-19 15:35:03.986129376 +0100
@@ -40,7 +40,6 @@
   double _vtime_accum;  // Accumulated virtual time.
 
   double _vtime_mark_accum;
-  void cm_log(bool doit, bool join_sts, const char* fmt, ...) ATTRIBUTE_PRINTF(4, 5);
 
  public:
   virtual void run();