cc -c -O ctime.c
as      empty.s
mv a.out empty.o
as      envsav.s
mv a.out    envsav.o
as      eofp.s
mv   a.out   eofp.o
as      gprocs.s
mv a.out    gprocs.o
as      pfork.s
mv a.out  pfork.o
as      setex.s
mv a.out   setex.o
as      sfork.s
mv a.out     sfork.o
cc -c -O skill.c
as      split.s
mv a.out    split.o
: ar rv /lib/libc.a *.o
: rm  *.o
