From 8020374d6b8b5d2d31acc0dfec8c2273b6d22e76 Mon Sep 17 00:00:00 2001
From: dearblue <dearblue@users.osdn.me>
Date: Sat, 1 Feb 2020 15:58:32 +0900
Subject: Fix builds for old mingw in mruby-socket; ref #4914

---
 mrbgems/mruby-socket/test/sockettest.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'mrbgems/mruby-socket')

diff --git a/mrbgems/mruby-socket/test/sockettest.c b/mrbgems/mruby-socket/test/sockettest.c
index 3017c7cc1..e9247d030 100644
--- a/mrbgems/mruby-socket/test/sockettest.c
+++ b/mrbgems/mruby-socket/test/sockettest.c
@@ -8,7 +8,9 @@
 
 #include <io.h>
 
-#ifdef _MSC_VER
+#if defined(_MSC_VER) || \
+    (defined(MRB_MINGW32_VERSION) && MRB_MINGW32_VERSION < 3021) || \
+    (defined(MRB_MINGW64_VERSION) && MRB_MINGW64_VERSION < 4000)
 
 #include <fcntl.h>
 #include <sys/stat.h>
-- 
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