ref: 2eadf1fa1703e5da4a98ba9c1a2bdc23bd140d8c 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>