ref: 2987a430a0acd62d06cce9cf8b9fb8ceb8d3f044 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>