Cmake update patch for dbus master

[Tor Lillqvist]

>>> If you require different busses, you just set a d

> This will not work on windows. Applications are started from the start
> menu -

Hmm. but isn't this whole discussion about what special needs
*developers* have? Not end-users. Developers know how to run an
interactive shell (cmd.exe, or MSYS bash, or whatever) and set an
environment variable in that shell, and start an applicaiton from that
shell.

--tml