[CMake] include_directories vs. link_directories

[Bill Hoffman]

Christian Convey wrote:
> Hi guys,
> 
>>From the cmake 2.6 documentation, it sounds to me like
> INCLUDE_DIRECTORIES will add another directory to the list of those
> searched for header files.  In contrast, LINK_DIRECTORIES sounds like
> it overwrites, rather than appends to, the previous list of
> directories that are searched through by the linker.
> 
> Have I got it right?  And if so, why the difference (append vs.
> overwrite) of the two functions?
> 

Both should append.

-Bill