[CMake] Way to use precompilation directive on cmake and conditionnal linking

[Tyler]

On Tue, Mar 24, 2009 at 04:55:53PM +0100, Nadir SOUALEM wrote:
> Thank you Tyler , i use the same method for linking, but i thought there 
> was a better way than:
> 
> if (WITH_OPENGL)
> add_definitions (-DOPENGL)
> else (WITH_OPENGL)
> add_definitions (-DNO_OPENGL)
> endif (WITH_OPENGL)
> 
> for preprocessing vars ....

Glad I could help, but now I'm curious: what's so bad about this
approach that you're looking for another way to do it?

tyler