From 3bcde7e1cd291a491e5482881fbd05ea932bf663 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <arsenm2@rpi.edu>
Date: Thu, 29 Mar 2012 17:41:05 -0400
Subject: [PATCH] Only define Win32 crud macros if not defined already

---
 src/win32_platform.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/win32_platform.h b/src/win32_platform.h
index 63a372d7..7bfd5995 100644
--- a/src/win32_platform.h
+++ b/src/win32_platform.h
@@ -33,8 +33,13 @@
 
 
 // We don't need all the fancy stuff
-#define NOMINMAX
-#define VC_EXTRALEAN
+#ifndef NOMINMAX
+ #define NOMINMAX
+#endif
+
+#ifndef VC_EXTRALEAN
+ #define VC_EXTRALEAN
+#endif
 
 #ifndef WIN32_LEAN_AND_MEAN
  #define WIN32_LEAN_AND_MEAN