From a14611cd54d2ac02daad5ccfe99fc3ec9b0818bd Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Wed, 26 Oct 2022 10:53:10 +0900
Subject: Fix -Wundef warnings

---
 include/ruby/internal/intern/gc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'include/ruby/internal')

diff --git a/include/ruby/internal/intern/gc.h b/include/ruby/internal/intern/gc.h
index e7b8008729..ae79498cf3 100644
--- a/include/ruby/internal/intern/gc.h
+++ b/include/ruby/internal/intern/gc.h
@@ -26,7 +26,7 @@
 # include <stddef.h>                       /* size_t */
 #endif
 
-#if HAVE_SYS_TYPES_H
+#ifdef HAVE_SYS_TYPES_H
 # include <sys/types.h>                    /* ssize_t */
 #endif
 
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