31 pub type gzFile = *mut gzFile_s;  typedef
274     pub fn gzdopen(fd: c_int, mode: *const c_char) -> gzFile;  in gzdopen()
276     pub fn gzclearerr(file: gzFile);  in gzclearerr()
282     pub fn gzerror(file: gzFile, errnum: *mut c_int) -> *const c_char;  in gzerror()
284     pub fn gzflush(file: gzFile, flush: c_int) -> c_int;  in gzflush()
288     pub fn gzgets(file: gzFile, buf: *mut c_char, len: c_int) -> *mut c_char;  in gzgets()
290     pub fn gzopen(path: *const c_char, mode: *const c_char) -> gzFile;  in gzopen()
292     pub fn gzputc(file: gzFile, c: c_int) -> c_int;  in gzputc()
294     pub fn gzputs(file: gzFile, s: *const c_char) -> c_int;  in gzputs()
296     pub fn gzread(file: gzFile, buf: voidp, len: c_uint) -> c_int;  in gzread()
300     pub fn gzseek(file: gzFile, offset: z_off_t, whence: c_int) -> z_off_t;  in gzseek()
302     pub fn gzsetparams(file: gzFile, level: c_int, strategy: c_int) -> c_int;  in gzsetparams()
308     pub fn gzwrite(file: gzFile, buf: voidpc, len: c_uint) -> c_int;  in gzwrite()