cc -I/usr/include/retrofit -O from.c -lretro -ltermlib -lS -s
cc -I/usr/include/retrofit -O last.c -lretro -ltermlib -lS -s
cc -I/usr/include/retrofit -O mkstr.c -lretro -ltermlib -lS -s
cc -I/usr/include/retrofit -O msgs.c -lretro -ltermlib -lS -s
cc -I/usr/include/retrofit -O printenv.c -lretro -ltermlib -lS -s
cp a.out /usr/ucb/printenv
cc -I/usr/include/retrofit -O setenv.c -lretro -ltermlib -lS -s
cc -I/usr/include/retrofit -O strings.c -lretro -ltermlib -lS -s
cp a.out /usr/ucb/strings
cc -I/usr/include/retrofit -O tset.c -lretro -ltermlib -lS -s
cc -I/usr/include/retrofit -O whereis.c -lretro -ltermlib -lS -s
cp a.out /usr/ucb/whereis