supported_defaults=
 case "${target}" in
        aarch64*-*-*)
-               supported_defaults="abi cpu cpu_32 cpu_64 arch arch_32 arch_64 tune tune_32 tune_64"
+               supported_defaults="abi cpu cpu_64 arch arch_64 tune tune_64"
                if test x$with_cpu_64 != x && test x$with_cpu = x; then
                        with_cpu=$with_cpu_64
                fi
-               if test x$with_cpu_32 != x && test x$with_cpu = x; then
-                       with_cpu=$with_cpu_32
-               fi
                if test x$with_arch_64 != x && test x$with_arch = x; then
                        with_arch=$with_arch_64
                fi
-               if test x$with_arch_32 != x && test x$with_arch = x; then
-                       with_arch=$with_arch_32
-               fi
                if test x$with_tune_64 != x && test x$with_tune = x; then
                        with_tune=$with_tune_64
                fi
-               if test x$with_tune_32 != x && test x$with_tune = x; then
-                       with_tune=$with_tune_32
-               fi
                for which in cpu arch tune; do
                        eval "val=\$with_$which"
                        base_val=`echo $val | sed -e 's/\+.*//'`