1 files changed, 2 insertions, 0 deletions
diff --git a/gc.h b/gc.h
index d2fa038d..c5063fa3 100644
--- a/gc.h
+++ b/gc.h
@@ -36,3 +36,5 @@ int gc_is_reachable(val);
 void unmark(void);
 void gc_hint_func(val *);
 #define gc_hint(var) gc_hint_func(&var)
+#define REACHABLE 0x100
+#define FREE      0x200