ref: c2a5d7e3f28e86aeef1e4e37e2b88e46af90b62c 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>