[Cmake] Interactive build options

[Eric Wing]

This is very cool. Thanks!


--- Brad King <brad.king at kitware.com> wrote:
> > Is there a way to accomplish this general idea?
> 
> Yes, and it is packaged nicely as a macro in a VTK
> source file:
> 
>
http://public.kitware.com/cgi-bin/cvsweb.cgi/VTK/CMake/vtkDependentOption.cmake?rev=1.3&content-type=text/x-cvsweb-markup&cvsroot=VTK
> 
> Basically it lets options appear and disappear
> depending on other 
> options, and the value is preserved in between.
> 
> -Brad