Toplevel patch: Autogenerate Makefile targets 1 (do-*)

[DJ Delorie]

> 	* Makefile.def: Add list of recursive targets to autogenerate.
> 	* Makefile.tpl: Autogenerate do-* targets.
> 	* Makefile.in: Regenerate.

Ok except..

> +# This is being rewritten for cleanliness.

This comment seems inappropriate.  Comments talk about what *is*, not
what *was*.  This comment seems to talk about the change itself, not
the results.