+# The following machinery tests the gane against a binary made from the advent430 branch
+# The diff file produced has new spellings in it.
+
+ancient:
+ for x in *.log; do stem=$${x%.log}; echo $${stem}; ./advent430 <$${stem}.log | ./oldfilter >$${stem}.ochk; done
+ for x in *.log; do stem=$${x%.log}; diff -u $${stem}.chk $${stem}.log; done
+ rm *.ochk
+