gzoffset         1592 third_party/zlib/zlib.h #  ifdef gzoffset
gzoffset         1615 third_party/zlib/zlib.h      ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile));
gzoffset         1623 third_party/zlib/zlib.h    ZEXTERN z_off_t ZEXPORT gzoffset OF((gzFile));