1 files changed, 12 insertions, 0 deletions
diff --git a/src/gc.h b/src/gc.h
index 3c18905d3..61f8ce96a 100644
--- a/src/gc.h
+++ b/src/gc.h
@@ -29,4 +29,16 @@ typedef struct {
   } as;
 } RVALUE;
 
+void mrb_gc_mark_gv(mrb_state*);
+void mrb_gc_free_gv(mrb_state*);
+void mrb_gc_mark_iv(mrb_state*, struct RObject*);
+size_t mrb_gc_mark_iv_size(mrb_state*, struct RObject*);
+void mrb_gc_free_iv(mrb_state*, struct RObject*);
+void mrb_gc_mark_mt(mrb_state*, struct RClass*);
+size_t mrb_gc_mark_mt_size(mrb_state*, struct RClass*);
+void mrb_gc_free_mt(mrb_state*, struct RClass*);
+void mrb_gc_mark_ht(mrb_state*, struct RHash*);
+size_t mrb_gc_mark_ht_size(mrb_state*, struct RHash*);
+void mrb_gc_free_ht(mrb_state*, struct RHash*);
+
 #endif  /* MRUBY_GC_H */