From df60856702158368022d366ec1ac7dd5102edc63 Mon Sep 17 00:00:00 2001
From: Fabio Alessandrelli <fabio.alessandrelli@gmail.com>
Date: Tue, 3 Apr 2018 19:40:11 +0200
Subject: [PATCH] Only redefine _WIN32_WINNT macro when < 0x0501

---
 library/net_sockets.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/library/net_sockets.c b/library/net_sockets.c
index f99d339ff0..62f5b68ea6 100644
--- a/library/net_sockets.c
+++ b/library/net_sockets.c
@@ -47,11 +47,12 @@
 
 #define IS_EINTR( ret ) ( ( ret ) == WSAEINTR )
 
-#ifdef _WIN32_WINNT
+#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0501)
 #undef _WIN32_WINNT
-#endif
 /* Enables getaddrinfo() & Co */
 #define _WIN32_WINNT 0x0501
+#endif
+
 #include <ws2tcpip.h>
 
 #include <winsock2.h>