Revision control

++ # Copyright (C) 2022 The Qt Company Ltd.
++ # SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ qt_examples_build_begin(EXTERNAL_BUILD)
++
++ if(TARGET Qt::Scxml)
++ add_subdirectory(scxml)
++ endif()
++ if(TARGET Qt::StateMachine)
++ add_subdirectory(statemachine)
++ endif()
++
++ qt_examples_build_end()