mrkn

diff --git a/gc.c b/gc.c
index f307ecb..084b611 100644
--- a/gc.c
+++ b/gc.c
@@ -393,6 +393,7 @@ typedef struct rb_objspace {
     struct gc_list *global_list;
     size_t count;
     int gc_stress;
+    int gc_disable_lazy_sweep;
 } rb_objspace_t;