Groff-&groff-depversion; needs the following to be installed: bash: sh binutils: ar, as, ld, ranlib bison: bison diffutils: cmp fileutils: chmod, cp, install, ln, ls, mkdir, mv, rm, touch gcc: cc1, cc1plus, collect2, cpp0, g++, gcc grep: egrep, grep make: make mawk: awk sed: sed sh-utils: basename, date, echo, expr, hostname, uname textutils: cat, tr