[Cmake] Set command

[Cross, Geoff (CRD)]

> >>   SET(VAR [VALUE] [CACHE TYPE DOCSTRING])
> 
> This has also broken various things in vxl: how do I now 
> define a variable for the current directory
> only?  
> 


Ignore that: it was just a bug in the

SET(VAR value)

option in cmSetCommand.cxx.

Now fixed and committed.

Geoff.