--- old/src/cpu/ppc/vm/vm_version_ppc.cpp	2015-06-11 10:35:39.055401878 -0700
+++ new/src/cpu/ppc/vm/vm_version_ppc.cpp	2015-06-11 10:35:38.967400502 -0700
@@ -176,6 +176,11 @@
     FLAG_SET_DEFAULT(UseAESIntrinsics, false);
   }
 
+  if (UseGHASHIntrinsics) {
+    warning("GHASH intrinsics are not available on this CPU");
+    FLAG_SET_DEFAULT(UseGHASHIntrinsics, false);
+  }
+
   if (UseSHA) {
     warning("SHA instructions are not available on this CPU");
     FLAG_SET_DEFAULT(UseSHA, false);