--- Concurrent.Thread.Compiler.js.orig	2007-03-19 11:28:21.000000000 +0900
+++ Concurrent.Thread.Compiler.js	2007-04-15 20:34:19.648305600 +0900
@@ -12389,7 +12389,7 @@ var initialContThrow  = new DotAccessor(
 
 
 function compile ( f ) {
-    return eval(prepare(f));
+    return eval(prepare(f), f);
 }