From 5b9ccaf104cc1054d4f8f17bc8a4b8dc949e5527 Mon Sep 17 00:00:00 2001
From: FrankHB <frankhb1989@gmail.com>
Date: Sat, 17 Jun 2023 02:25:01 +0800
Subject: [PATCH] Fixed possible macro redefinition (#1892)

MinGW libstdc++ may define `NOMINMAX` unconditionally. This fixes the case when it is already defined.
---
 examples/main/main.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/examples/main/main.cpp b/examples/main/main.cpp
index ef9e75fab..a051fcbc5 100644
--- a/examples/main/main.cpp
+++ b/examples/main/main.cpp
@@ -23,7 +23,9 @@
 #include <unistd.h>
 #elif defined (_WIN32)
 #define WIN32_LEAN_AND_MEAN
+#ifndef NOMINMAX
 #define NOMINMAX
+#endif
 #include <windows.h>
 #include <signal.h>
 #endif