--- a/hotspot/src/share/vm/gc/g1/g1CodeBlobClosure.hpp	Wed Oct 14 09:33:45 2015 +0200
+++ b/hotspot/src/share/vm/gc/g1/g1CodeBlobClosure.hpp	Wed Oct 14 14:50:43 2015 +0200
@@ -22,6 +22,9 @@
  *
  */
 
+#ifndef SHARE_VM_GC_G1_G1CODEBLOBCLOSURE_HPP
+#define SHARE_VM_GC_G1_G1CODEBLOBCLOSURE_HPP
+
 #include "gc/g1/g1CollectedHeap.hpp"
 #include "memory/iterator.hpp"
 
@@ -53,3 +56,6 @@
 
   void do_code_blob(CodeBlob* cb);
 };
+
+#endif // SHARE_VM_GC_G1_G1CODEBLOBCLOSURE_HPP
+