[CMake] Visual Studio 2008 configure and build step independency

[Thomas Wolf]

Addition:

if i try to fake the contents of the CTK use file, like

set_found true
usefile_included 1

find_package still tries to include the CTKConfig.cmake. I always thougt
if the Find-variable is set to true find_package just assumes that
everything went fine and continues (silent mode). Or is this only the
module mode of find_package?

regards,
Thomas