From 619ec7bc15a75d76182fb107e706ce882919e98a Mon Sep 17 00:00:00 2001
From: Joerg Bornemann <joerg.bornemann@qt.io>
Date: Mon, 6 Jul 2020 09:53:44 +0200
Subject: CMake: Support the -c++std configure argument

Task-number: QTBUG-85373
Change-Id: I071c1d0c8bf96b34c5733d039b8a61e54e416800
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
---
 cmake/QtProcessConfigureArgs.cmake | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cmake/QtProcessConfigureArgs.cmake b/cmake/QtProcessConfigureArgs.cmake
index bad7418779..63607ef72a 100644
--- a/cmake/QtProcessConfigureArgs.cmake
+++ b/cmake/QtProcessConfigureArgs.cmake
@@ -134,6 +134,10 @@ while(configure_args)
     elseif(arg STREQUAL "-qtnamespace")
         list(POP_FRONT configure_args namespace)
         push("-DQT_NAMESPACE=${namespace}")
+    elseif(arg STREQUAL "-c++std")
+        list(POP_FRONT configure_args edition)
+        string(REGEX REPLACE "^c\\+\\+" "" edition "${edition}")
+        push("-DCMAKE_CXX_STANDARD=${edition}")
     elseif(arg STREQUAL "--")
         # Everything after this argument will be passed to CMake verbatim.
         push(${configure_args})
-- 
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