The keys.cbl and the userkeys.c module are provided here as an example
of how the COBOL "CALL" verb can be used to access routines which have
been written in C or assembler.

Refer to the LEVEL II COBOL Operating Guide, and the Userkeys Supplement
for complete details regarding their use.

Notice that the modules in this directory are archive libraries (rts21.a
and rts22.a) instead of object modules (rts21.o and rts22.o) as noted
in the LEVEL II COBOL Operating Guide.  Libraries were used to allow for
for the rts to be relinked with user written subroutines, since XENIX V2.3
at this time does not accept the -r flag in ld for linking object modules.

