[CMake] --enable-* with cmake

[Philip Lowman]

Andreas Pakulat wrote:
>> The fact that people don't even know the proper way to define variables
>> at the command line (myself included) should be proof positive that
>> CMake could use some improvement when operating in command line mode.
> 
> Or that people should start reading documentations ;)

I did read the documentation at some point.  I do use "-D" in some build
scripts although I have to admit it has been a while. ;)

-- 
Philip Lowman
Simulation Development Engineer, Modeling and Simulation Technology
General Dynamics Land Systems
http://www.gdls.com