From b610b7a35cd62ce180ef3f5be4fabd9336f3fe51 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Fri, 25 Jun 2021 09:04:56 -0400
Subject: VS: Update v142 CL flag table for VS 17.0 Preview 1

Run the command

    python3 Source/cmConvertMSBuildXMLToJSON.py -t v142 \
        'c:/.../MSBuild/Microsoft/VC/v160/1033/cl.xml'

To generate `v142_CL.json` locally.  Manually move new and updated
settings over to `Templates/MSBuild/FlagTables/v142_CL.json`.
---
 Templates/MSBuild/FlagTables/v142_CL.json | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Templates/MSBuild/FlagTables/v142_CL.json b/Templates/MSBuild/FlagTables/v142_CL.json
index c21a3de..49776d0 100644
--- a/Templates/MSBuild/FlagTables/v142_CL.json
+++ b/Templates/MSBuild/FlagTables/v142_CL.json
@@ -477,6 +477,13 @@
   },
   {
     "name": "LanguageStandard",
+    "switch": "std:c++20",
+    "comment": "ISO C++20 Standard",
+    "value": "stdcpp20",
+    "flags": []
+  },
+  {
+    "name": "LanguageStandard",
     "switch": "std:c++17",
     "comment": "ISO C++17 Standard",
     "value": "stdcpp17",
-- 
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