Phil Farrell - Stanford Earth Sciences
29 March 1989

Routine ./control/gopks.c uses a low-level routine from the BSD UNIX
f77 I/O compiler library (/usr/lib/libI77.a) in the Fortran binding.
The name of this routine is "now_acc" in 4.2BSD or "nowwriting" in
4.3BSD.  If you have 4.3BSD (default at Earth Sciences), make sure the
./control/Makefile uses the compiler flag -DFOURTHREEBSD to get the
right routine.  If you don't have BSD or a close derivative, you may
not have the needed routine.  Then you will need to modify
./control/gopks.c to use something else.
