"Taking address of packed member of class or structure may result in an unaligned pointer value" build failure(s) — clang 6.0

PackageVersionSupposed error messageFull log Bug report
accelio 1.7-2transport/rdma/xio_rdma_datapath.c:4969:27: error: taking address of packed member 'hdr_len' of class or structure 'xio_rdma_cancel_hdr' may result in an unaligned pointer value [-Werror,-Waddress-of-packed-member] Log
kvmtool 0.20170904-1virtio/blk.c:161:37: error: taking address of packed member 'geometry' of class or structure 'virtio_blk_config' may result in an unaligned pointer value [-Werror,-Waddress-of-packed-member] Log
liberasurecode 1.5.0-1erasurecode_helpers.c:530:26: error: taking address of packed member 'metadata_chksum' of class or structure 'fragment_header_s' may result in an unaligned pointer value [-Werror,-Waddress-of-packed-member] Log

3 errors