1 files changed, 4 insertions, 0 deletions
diff --git a/gc.h b/gc.h
index 54afac9f..ba7c5777 100644
--- a/gc.h
+++ b/gc.h
@@ -43,6 +43,10 @@ val gc_mutated(val);
 void unmark(void);
 void gc_hint_func(val *);
 
+#if EXTRA_DEBUGGING
+val break_obj;
+#endif
+
 #define gc_hint(var) gc_hint_func(&var)
 #define REACHABLE 0x100
 #define FREE      0x200