+##########################################
+# check march=armv8-a+crc+crypto
+march_armv8_a_crc_crypto="no"
+if test "$cpu" = "arm64" ; then
+ cat > $TMPC <<EOF
+int main(void)
+{
+ return 0;
+}
+EOF
+ if compile_prog "-march=armv8-a+crc+crypto" "" ""; then
+ march_armv8_a_crc_crypto="yes"
+ CFLAGS="$CFLAGS -march=armv8-a+crc+crypto -DARCH_HAVE_CRC_CRYPTO"
+ fi
+fi
+echo "march_armv8_a_crc_crypto $march_armv8_a_crc_crypto"
+
+