[Cmake] dependencies

[Brad King]

> The last line doesn't change anything in either the generated Makefile
> or the generated cmake.depends. Do I need to call another function to
> be able to see the changes ?
No.  There must be something else wrong.  If the latest version of your QT
wrap commands are not checked in, please send them to me along with an
example of what you are trying to build.  I'll take a look to see if I can
track down the problem.

-Brad