ref: c1cf36fbb4a5b7a47f773e95fb8efe0b6d5c3c28 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>