From 35727928ad291d62f08d01821556cd33bfa12191 Mon Sep 17 00:00:00 2001
From: Lingzhu Xiang <lxiang@tencent.com>
Date: Wed, 23 Feb 2022 07:41:56 +0800
Subject: [PATCH] Fix test macro conflicts with STL headers in C++20

---
 test/main.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/main.h b/test/main.h
index 0e341372e..b1c09c766 100644
--- a/test/main.h
+++ b/test/main.h
@@ -53,6 +53,13 @@
 #include <future>
 #endif
 #endif
+#if __cplusplus > 201703L
+// libstdc++ 9's <memory> indirectly uses max() via <bit>.
+// libstdc++ 10's <memory> indirectly uses max() via ranges headers.
+#include <memory>
+// libstdc++ 11's <thread> indirectly uses max() via semaphore headers.
+#include <thread>
+#endif
 
 // Configure GPU.
 #if defined(EIGEN_USE_HIP)