If Qt is crosscompiled it's not necessary that it always require host tools to compile the application. That's why the pre-stored assumpion in Qt6Dependencies.cmake is incorrect. When moving the Qt toolchain to the target platform, this Qt becomes the native toolchain for this platform, so the requirement is incorrect since this moment. The detection should consider the CMAKE_CROSSCOMPILING flag and put the host tools requirement only in this case. Also if user predefined QT_HOST_TOOLS it also makes sense to require them and look for the Qt6HostInfo package. Pick-to: 6.10 Change-Id: I4c715eb2592ce79565787645aac172ff60b91493 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>