      struct METHOD *data;
 Index: thread.c
 ===================================================================
---- thread.c	(revision 26914)
+--- thread.c	(revision 26821)
 +++ thread.c	(working copy)
 @@ -336,6 +336,16 @@
  static void rb_mutex_unlock_all(mutex_t *mutex, rb_thread_t *th);

 	    add_ensure_iseq(ret, iseq, 0);
Index: vm_eval.c
===================================================================
--- vm_eval.c	(revision 26914)
+++ vm_eval.c	(working copy)
@@ -67,22 +67,29 @@
 	break;

 #endif /* RUBY_VM_CORE_H */
Index: iseq.c
===================================================================
--- iseq.c	(revision 26821)
+++ iseq.c	(working copy)
@@ -23,6 +23,38 @@
 
