It ensures dbus-display1.c will not be recompiled. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20240214-dbus-v7-3-7eff29f04c34@daynix.com>