ERR_RETURN        568 other-licenses/zlib/deflate.c         ERR_RETURN(strm, Z_STREAM_ERROR);
ERR_RETURN        570 other-licenses/zlib/deflate.c     if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR);
ERR_RETURN        776 other-licenses/zlib/deflate.c         ERR_RETURN(strm, Z_BUF_ERROR);
ERR_RETURN        781 other-licenses/zlib/deflate.c         ERR_RETURN(strm, Z_BUF_ERROR);