Target dependencies of the corresponding _automoc target.
Targets which have their AUTOMOC target ON have a corresponding _automoc target which is used to autogenerate generate moc files. As this _automoc target is created at generate-time, it is not possible to define dependencies of it, such as to create inputs for the moc executable.
The AUTOGEN_TARGET_DEPENDS target property can be set instead to a list of dependencies for the _automoc target. The buildsystem will be generated to depend on its contents.
See the cmake-qt(7) manual for more information on using CMake with Qt.