From 3229e0583fba6a7f1c58a1dd8aa7d4ca9c5155d9 Mon Sep 17 00:00:00 2001
From: Yusuke Endoh <mame@ruby-lang.org>
Date: Wed, 7 Aug 2019 22:54:38 +0900
Subject: [PATCH] hash.c: gc.h is needed when HASH_DEBUG mode

---
 hash.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hash.c b/hash.c
index 3fb519c537..808544793b 100644
--- a/hash.c
+++ b/hash.c
@@ -34,6 +34,10 @@
 #define HASH_DEBUG 0
 #endif
 
+#if HASH_DEBUG
+#include "gc.h"
+#endif
+
 #define HAS_EXTRA_STATES(hash, klass) ( \
     ((klass = has_extra_methods(rb_obj_class(hash))) != 0) || \
     FL_TEST((hash), FL_EXIVAR|FL_TAINT|RHASH_PROC_DEFAULT) || \