The files included in GENLIB.REL are:
	AROPLT, BARPLT, CALPLT, CALARD, DIMPLT, DRKPLT, DSHPLT, GENPLT,
	GRDPLT, HCHPLT, IBCD, IPLDST, IPLHIT, LINPLT, NMBPLT, PLTBOX,
	PLTCUT, PLTLIN, PLTTOP, PNTPLT, SCLPLT, WRDPLT.
The other files either are one of the FONTn files, and so redefine the same
arrays, or multiply-define a pen-controlling routine (such as PENBGN, PENEND,
etc.) or are one of the three programs included in the package, PACK, UNPACK,
and PENTST.  These must be chosen according to the particular plotter in use
and loaded separately.