[CMake] order of include dirs

[Brad King]

Alexander Neundorf wrote:
> How does the new feature CMAKE_INCLUDE_CURRENT_DIR work in this regard ?  
> I think the current dirs should always be the very first to be searched.  
> Is this the case, can this be done ?  

The directories added by this variable are always first.

> P.S. just for the case you are interested, there's a patch against 
> current cvs attached :-) 

Okay, since this simple change will solve the problem for KDE and it is 
not the default anyway I've committed it.

-Brad