ref: 72f9c4e49acb9d8d7397b6ea7de53ec9899a054c dir: /sys/src/cmd/bzip2/lib/plan9.h/
#include <u.h> #include <libc.h> #include <ctype.h> #define exit(x) exits((x) ? "whoops" : nil) #define size_t ulong