It wasn't possible to use the qt-cmake script with, e.g. the --build or --install argument, because we called cmake with -DCMAKE_TOOLCHAIN_FILE=..., and such arguments must be passed as the first argument. Since CMake 3.21 it's possible to pass the toolchain file via an environment variable. This patch changes qt-cmake and qt-cmake.bat accordingly. This is safe, because we require CMake 3.22 for building Qt since Qt 6.9. Pick-to: 6.10 Fixes: QTBUG-140785 Change-Id: I4b4bc729e80a0ab9fbe275cf2d3900111be3c1a3 Reviewed-by: Alexey Edelev <semlanik@gmail.com>