From 77ca9cc2db2c6da303b9224a931679a325ebda1e Mon Sep 17 00:00:00 2001
From: NIIBE Yutaka <gniibe@fsij.org>
Date: Tue, 13 Feb 2018 08:51:26 +0900
Subject: [PATCH] configure: MinGW has thread-safe getenv.

* configure.ac: have_thread_safe_getenv=yes with have_w64_system.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 608c376c..b7919c05 100644
--- a/configure.ac
+++ b/configure.ac
@@ -656,7 +656,7 @@ fi
 # Try to find a thread-safe version of getenv().
 have_thread_safe_getenv=no
 jm_GLIBC21
-if test $GLIBC21 = yes; then
+if test $GLIBC21 = yes -o have_w64_system = yes; then
   have_thread_safe_getenv=yes
 fi
 if test $have_thread_safe_getenv = yes; then