--- old/src/cpu/zero/vm/globals_zero.hpp	2010-10-04 17:00:28.670789601 -0400
+++ new/src/cpu/zero/vm/globals_zero.hpp	2010-10-04 17:00:26.813313265 -0400
@@ -45,3 +45,5 @@
 
 define_pd_global(bool,  RewriteBytecodes,     true);
 define_pd_global(bool,  RewriteFrequentPairs, true);
+
+define_pd_global(bool,  UseMembar,            false);