--- a/hotspot/src/share/vm/gc_implementation/g1/dirtyCardQueue.hpp	Tue Nov 23 15:01:43 2010 -0500
+++ b/hotspot/src/share/vm/gc_implementation/g1/dirtyCardQueue.hpp	Tue Nov 23 13:22:55 2010 -0800
@@ -22,6 +22,12 @@
  *
  */
 
+#ifndef SHARE_VM_GC_IMPLEMENTATION_G1_DIRTYCARDQUEUE_HPP
+#define SHARE_VM_GC_IMPLEMENTATION_G1_DIRTYCARDQUEUE_HPP
+
+#include "gc_implementation/g1/ptrQueue.hpp"
+#include "memory/allocation.hpp"
+
 class FreeIdSet;
 
 // A closure class for processing card table entries.  Note that we don't
@@ -168,3 +174,5 @@
   }
 
 };
+
+#endif // SHARE_VM_GC_IMPLEMENTATION_G1_DIRTYCARDQUEUE_HPP