ZSTREAM_FLAG_UNUSED 1684 ext/zlib/zlib.c #define GZFILE_FLAG_SYNC             ZSTREAM_FLAG_UNUSED
ZSTREAM_FLAG_UNUSED 1685 ext/zlib/zlib.c #define GZFILE_FLAG_HEADER_FINISHED  (ZSTREAM_FLAG_UNUSED << 1)
ZSTREAM_FLAG_UNUSED 1686 ext/zlib/zlib.c #define GZFILE_FLAG_FOOTER_FINISHED  (ZSTREAM_FLAG_UNUSED << 2)