ref: 3c7eaa9d6bbdd448675a7e9d4fe46bc0a48a4ade dir: /sys/src/cmd/bzip2/lib/unix.h/
#include <stdio.h> #include <stdlib.h> #include <string.h> #include <signal.h> #include <math.h> #include <errno.h> #include <ctype.h>