diff -r 41e7a68fbf45 -r e651c3ea6ea8 src/hotspot/share/runtime/arguments_ext.hpp
--- a/src/hotspot/share/runtime/arguments_ext.hpp	Mon Mar 05 13:07:04 2018 +0100
+++ b/src/hotspot/share/runtime/arguments_ext.hpp	Mon Mar 05 13:15:10 2018 +0100
@@ -30,7 +30,6 @@
 
 class ArgumentsExt: AllStatic {
 public:
-  static inline void set_gc_specific_flags();
   // The argument processing extension. Returns true if there is
   // no additional parsing needed in Arguments::parse() for the option.
   // Otherwise returns false.
@@ -38,8 +37,4 @@
   static inline void report_unsupported_options() { }
 };
 
-void ArgumentsExt::set_gc_specific_flags() {
-  Arguments::set_gc_specific_flags();
-}
-
 #endif // SHARE_VM_RUNTIME_ARGUMENTS_EXT_HPP