Here is an updated patch. No bug fixes, just some API changes as
per discussions with Joerg.
fetch http://leaf.dragonflybsd.org/~dillon/callout02.patch
Note: this patch goes back to the original callout_init() API so there
are fewer files being patched. If you applied the old patch you must
be sure to remove/fresh-checkout *all* the files that were touched by
the old patch before applying this one.
-Matt