Revision control
++ QT += waylandclient gui-private
++ CONFIG += wayland-scanner
++
++ WAYLANDCLIENTSOURCES += ../protocol/custom.xml
++
++ SOURCES += main.cpp \
++ ../client-common/customextension.cpp
++
++ HEADERS += \
++ ../client-common/customextension.h
++
++ TARGET = custom-extension-cpp-client
++
++ target.path = $$[QT_INSTALL_EXAMPLES]/wayland/custom-extension/cpp-client
++ INSTALLS += target