In the prototype of the gzclose() function of changed from:
typedef struct gzFile_s *gzFile; /* semi-opaque gzip file descriptor */
to:
typedef voidp gzFile;
This caused type mismatch when calling funopen(3) as:
'int (*)(void *)' != 'int (*)(struct gzFile_s *)'
Cast gzclose to (int (*)(void *)) when used in funopen(3).
