qt 6.5.1 original

mkspecs/win32-clang-g++/qmake.conf

@@ -0,0 +1,35 @@
+#
+# qmake configuration for win32-clang-g++
+#
+# Written for MinGW-w64 / clang 6.0 or higher
+#
+# Cross compile example for x86_64-w64-mingw32-clang++:
+#   configure -xplatform win32-clang-g++ -device-option CROSS_COMPILE=x86_64-w64-mingw32-
+#
+
+include(../common/g++-win32.conf)
+
+# modifications to g++-win32.conf
+
+QMAKE_COMPILER         += clang llvm   # clang pretends to be gcc
+
+QMAKE_CC                = $${CROSS_COMPILE}clang
+QMAKE_CFLAGS           +=
+QMAKE_CFLAGS_WARN_ON   += -Wextra -Wno-ignored-attributes
+
+QMAKE_CXX               = $${CROSS_COMPILE}clang++
+QMAKE_CXXFLAGS         +=
+QMAKE_CXXFLAGS_WARN_ON  = $$QMAKE_CFLAGS_WARN_ON
+
+QMAKE_LINK              = $${CROSS_COMPILE}clang++
+QMAKE_LINK_C            = $${CROSS_COMPILE}clang
+
+QMAKE_CFLAGS_LTCG       = -flto=thin
+QMAKE_CXXFLAGS_LTCG     = $$QMAKE_CFLAGS_LTCG
+QMAKE_CFLAGS_LTCG_FATOBJECTS = -flto
+QMAKE_CXXFLAGS_LTCG_FATOBJECTS = $$QMAKE_CFLAGS_LTCG_FATOBJECTS
+QMAKE_LFLAGS_LTCG       = $$QMAKE_CFLAGS_LTCG
+
+QMAKE_CFLAGS_OPTIMIZE_SIZE = -Oz
+
+load(qt_config)

mkspecs/win32-clang-g++/qplatformdefs.h

@@ -0,0 +1,4 @@
+// Copyright (C) 2018 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "../win32-g++/qplatformdefs.h"