From 456534fd16678a76ed1e51c46f34c8c84b1ebd1d Mon Sep 17 00:00:00 2001
From: Tim Varley <tim.varley@gmail.com>
Date: Thu, 17 Jun 2021 15:29:01 -0400
Subject: [PATCH] Place guard around UNUSED defined

---
 olcPixelGameEngine.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/olcPixelGameEngine.h b/olcPixelGameEngine.h
index 48a9be5..cec1626 100644
--- a/olcPixelGameEngine.h
+++ b/olcPixelGameEngine.h
@@ -394,7 +394,9 @@ int main()
 	#define olcT(s) s
 #endif
 
-#define UNUSED(x) (void)(x)
+#if ! defined(UNUSED)
+  #define UNUSED(x) (void)(x)
+#endif
 
 // O------------------------------------------------------------------------------O
 // | PLATFORM SELECTION CODE, Thanks slavka!                                      |