From 77b6b94e74516f50b4ca0b103eaf90488c830be6 Mon Sep 17 00:00:00 2001
From: Yuichi Nishiwaki <yuichi.nishiwaki@gmail.com>
Date: Fri, 1 Nov 2013 18:55:44 +0900
Subject: [PATCH] gc must mark macros as well

---
 src/gc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gc.c b/src/gc.c
index be57884f..c717e608 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -239,6 +239,11 @@ gc_mark_phase(pic_state *pic)
     gc_mark(pic, pic->globals[i]);
   }
 
+  /* macros */
+  for (i = 0; i < pic->mlen; ++i) {
+    gc_mark_object(pic, (struct pic_object *)pic->macros[i]);
+  }
+
   /* pool */
   for (i = 0; i < pic->plen; ++i) {
     gc_mark(pic, pic->pool[i]);