Flex-&flex-depversion; needs the following to be installed: sh from the bash package ar from the binutils package as from the binutils package ld from the binutils package bison from the bison package yacc from the bison package chmod from the fileutils package cp from the fileutils package ln from the fileutils package mv from the fileutils package rm from the fileutils package touch from the fileutils package cc from the gcc package egrep from the grep package grep from the grep package make from the make package sed from the sed package dirname from the sh-utils package cat from the textutils package tr from the textutils package