安装Flex依赖于
最后检查于 version 2.5.4a.
Bash: sh
Binutils: ar, as, ld, ranlib
Bison: bison
Diffutils: cmp
Fileutils: chmod, cp, install, ln, mv, rm, touch
Gcc: cc1, collect2, cpp0, gcc
Grep: egrep, grep
Make: make
Sed: sed
Sh-utils: echo, hostname
Textutils: cat, tr