s390) NO_UNALIGNED_ACCESS=1 ;;
s390x) NO_UNALIGNED_ACCESS=1 ;;
arm*) NO_UNALIGNED_ACCESS=1 ;;
+ aarch64) NO_UNALIGNED_ACCESS=1 ;;
mips*) NO_UNALIGNED_ACCESS=1 ;;
tile*) NO_UNALIGNED_ACCESS=1 ;;
*) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;;