To generate PortaCalc for VMS using these files:

LIBR/EXTRACT=*/OUT=PCCxx.OBJ PCCxx.OLB
LINK/NOMAP PCCxx

PCCX is the "smart" PortaCalc using disk based but small files to
hold numbers and formulae
PCCVM is the VT100 PortaCalc - VM for VAX. uses lots of demand-0 pages
and you may have to bump VIRTUALPAGECNT parameter to link.
PCCCS is like PCCVM but for Datamedia Colorscan 10, in full color.
PCCPC is like PCCVM but uses color escape sequences appropriate to
Intecolor terminals and IBM PC with ANSI.SYS driver and color screen,
run through a comm program that allows MSDOS calls to do console I/O.
PCGRAF is the library that generates the PortaCalc graphics package.