-case $host_cpu in
-changequote(,)dnl
- i[3456]86)
-changequote([,])dnl
- ;;
- x86_64) ;;
- amd64) ;;
- powerpc) ;;
- ppc64) ;;
- ppc64le) ;;
- powerpc64) ;;
- powerpc64le) ;;
- s390) NO_UNALIGNED_ACCESS=1 ;;
- s390x) NO_UNALIGNED_ACCESS=1 ;;
- arm*) NO_UNALIGNED_ACCESS=1 ;;
- aarch64) NO_UNALIGNED_ACCESS=1 ;;
- mips*) NO_UNALIGNED_ACCESS=1 ;;
- tile*) NO_UNALIGNED_ACCESS=1 ;;
- *)
+AS_CASE([$host_cpu],
+ [i[[3456]]86], [],
+ [x86_64], [],
+ [amd64], [],
+ [powerpc], [],
+ [ppc64], [],
+ [ppc64le], [],
+ [powerpc64], [],
+ [powerpc64le], [],
+ [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],
+ [