chdir tab
cc mtab.c
a.out atable atab
a.out ctable ctab
a.out etable etab
cmp atab /usr/lib/atab
cp atab /usr/lib/atab
cmp ctab /usr/lib/ctab
cp ctab /usr/lib/ctab
cmp etab /usr/lib/etab
cp etab /usr/lib/etab
rm a.out atab ctab etab

chdir ../src
cc -s -O upost.c
cmp a.out /usr/bin/upost
cp a.out /usr/bin/upost
cc -s -O crpost.c
cmp a.out /usr/bin/crpost
cp a.out /usr/bin/crpost
cc -s -O dr.c acts.c put.c
cmp a.out /usr/bin/cref
cp a.out /usr/bin/cref
rm a.out *.o

chdir ../index
cc -s -O ind?.c
cmp a.out /usr/bin/index
cp a.out /usr/bin/index
rm a.out *.o