From f4efaf54d552d4ab4601119a6bc6d2991c82888d Mon Sep 17 00:00:00 2001
From: Cristian Adam <cristian.adam@qt.io>
Date: Fri, 22 Nov 2019 17:11:22 +0100
Subject: [PATCH] CMake: Add support for building with Clang-MinGW toolchain

Clang doesn't have a mkspec just a win32-clang, there is
win32-clang-g++ and win32-clang-msvc.

Change-Id: Iff521e955559dfb2308e377b41e86b3f62c42e70
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
---
 cmake/QtBuild.cmake | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/cmake/QtBuild.cmake b/cmake/QtBuild.cmake
index 68729fe351..f51e84b19a 100644
--- a/cmake/QtBuild.cmake
+++ b/cmake/QtBuild.cmake
@@ -101,10 +101,13 @@ if(WIN32)
     endif()
     if(MSVC)
         set(QT_QMAKE_TARGET_MKSPEC win32-msvc)
-    elseif(CLANG)
-        set(QT_QMAKE_TARGET_MKSPEC win32-clang)
+    elseif(CLANG AND MINGW)
+        set(QT_QMAKE_TARGET_MKSPEC win32-clang-g++)
     elseif(MINGW)
         set(QT_QMAKE_TARGET_MKSPEC win32-g++)
+    endif()
+
+    if (MINGW)
         list(APPEND QT_DEFAULT_PLATFORM_DEFINITIONS _WIN32_WINNT=0x0601)
     endif()
 elseif(LINUX)