From d22da73a4ce677a50c5fed45dc0c044576172731 Mon Sep 17 00:00:00 2001
From: Younguk Kim <bluekyu.dev@gmail.com>
Date: Thu, 14 Jun 2018 09:33:19 +0900
Subject: [PATCH] Fix macro redefinition warning

---
 panda/src/express/checksumHashGenerator.I | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/panda/src/express/checksumHashGenerator.I b/panda/src/express/checksumHashGenerator.I
index ade42717b0..640b02e415 100644
--- a/panda/src/express/checksumHashGenerator.I
+++ b/panda/src/express/checksumHashGenerator.I
@@ -13,7 +13,9 @@
 
 #ifdef _WIN32
 // Needed for PtrToLong, below
+#ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN 1
+#endif
 #include <windows.h>
 #endif