toplevel patch: Let configure decide which targets to hit (1)

[DJ Delorie]

> This is for 3.4bib, blah, blah, blah.
> 
> 	* configure.in: Produce lists of subdir targets we're actually 
> 	configuring.
> 	* Makefile.tpl: Let configure set which subdir targets are hit.
> 	* Makefile.in: Regenerate.

Ok.