Revision control
++ QT += widgets
++
++ SOURCES = main.cpp
++
++ # install
++ target.path = $$[QT_INSTALL_EXAMPLES]/widgets/tutorials/widgets/childwidget
++ INSTALLS += target
++ QT += widgets
++
++ SOURCES = main.cpp
++
++ # install
++ target.path = $$[QT_INSTALL_EXAMPLES]/widgets/tutorials/widgets/childwidget
++ INSTALLS += target