[CMake] Why bother with FIND_LIBRARY()

[Eric Bolz]

Yes, FIND_LIBRARY() is useful because it tells me if I have the correct 
path to a library. But I have several versions of some libraries on my 
system. Am I the only one?  I doubt it.  In any case, I can't use 
FIND_LIBRARY to help me get the right version because cmake separates 
the path from the library name.
On a related subject, I'd like to know that if I build a project today 
that I'll get the same result next year, even if I change my PATH or 
LD_LIBRARY_PATH in the mean time.  I see no way to enforce this in cmake 
because cmake separates the path from the library name.

Eric