Mark LibKWorkspace and ScreenSaverDBusInterface as REQUIRED
Review Request #121033 - Created Nov. 7, 2014 and submitted
Other parts of the build system assume these have been found, so
configuring fails when they are missing.
Configure errors out with a more relevant message (about not finding LibKWorkspace) when plasma-workspace is not installed. When plasma-workspace is installed, LibKWorkspace and ScreenSaverDBusInterface are correctly listed under the REQUIRED modules, and configuring (and building) is successful.
Did some testing.