I've been trying to find documentation on the variable
OSVERSION_SPECIFIC set in certain packages.  Where is it?  There's no
mention of it in Packages.txt nor in packages(7).  What values does it
take, or does it simply need to be defined?

	Thanks,

     -- Johnny C. Lam <lamj@stat.cmu.edu>
        Department of Statistics, Carnegie Mellon University
        http://www.stat.cmu.edu/~lamj/