header name: [getopt.h](https://www.gnu.org/software/gnulib/manual/html_node/getopt_002eh.html) required by: [ncurses](https://github.com/mirror/ncurses) required function(s): [getopt](https://github.com/mirror/ncurses/blob/8556933f52df71cf1b58eeaeae1865ebf7c005cc/progs/clear.c#L79)
