New Contrib Build?

Folks,

Hey, I can see a way for /contrib to become a lot better option for 
stuff-we're-not-sure-whether-to-include.  

What if we could build contrib modules through a build-time switch for 
PostgreSQL?   Like,

./configure --with-perl --with-dblink --with-newsysviews

This would seem a *lot* more user friendly to me, and easier on the package 
builders.  What's the technical obstacle to it?

Also, I think that /contrib modules should have documentation included in the 
main docs, probably as an appendix.

-- 
--Josh

Josh Berkus
Aglio Database Solutions
San Francisco