From 4959ffbe6edc2ece330c940f3b265f093ee89df9 Mon Sep 17 00:00:00 2001
From: Levin Li <lilinfeng303@outlook.com>
Date: Fri, 12 Mar 2021 13:33:02 +0800
Subject: [PATCH] Correctly set __cplusplus with /Zc:__cplusplus

---
 CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d90c3c57c..98b6bd636 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -112,6 +112,11 @@ if(MSVC)
   # Promoted to errors
   # C4316: object allocated on the heap may not be aligned 16
   add_compile_options("/wd4244" "/wd4267" "/wd4503" "/wd4800" "/wd4455" "/wd5030" "/bigobj" "/we4316")
+
+  if(MSVC_VERSION GREATER_EQUAL 1914)
+    # /Zc:__cplusplus: correctly set __cplusplus macro value
+    add_compile_options("/Zc:__cplusplus")
+  endif()
 endif()
 
 if(NOT WIN32)