renamed 'defns' to 'defs';
removed 'sigclass';
replaced parents by enclose;
exported parens, brackets, mk_list, mk_big_list, mk_pair, mk_triple;
various minor internal changes;
#! /bin/sh
#Make entire system using Standard ML of New Jersey
#Pathnames will have to be modified for your site
ISABELLEBIN=/homes/`whoami`/bin
ISABELLECOMP=sml
export ISABELLEBIN ISABELLECOMP
nohup make-all $*