Works fine with std=cobol85 or std=mf.
With std=mvs, it doesn't find the file. (In fileio.c there is rubbish in
the filename)
Presumably caused by "assign-clause: ibm" in mvs.conf which
activates
CB_ASSIGN_IBM in typeck.c
Which also leads to the next problem - The prog is not terminating after
open
or read after going into standard_error_handler. Therefore
loops.