as suftab.s strip a.out cmp a.out /usr/lib/suftab cp a.out /usr/lib/suftab as roff?.s ld -s a.out -l cmp a.out /usr/bin/roff cp a.out /usr/bin/roff as nroff[1-5].s roff7.s nroff8.s ld -s a.out cmp a.out /usr/bin/nroff cp a.out /usr/bin/nroff yacc ne.g cc -s -O ne*.c -ly cmp a.out /usr/bin/neqn cp a.out /usr/bin/neqn rm y.tab.c *.o a.out