All,
> >> We might want to have a system where an extension can declare that
> >> it
> >> "provides" capabilites, and then have another extension "require"
> >> those
> >> capabilities. That would be a neater solution to the case that
> >> there are
> >> multiple extensions that all provide the same capability.
>
> +1
As a warning, this is the sort of thing which DEB and RPM have spent years implementing ... and still have problems
with. Not that we shouldn't do it, but we should be prepared for the amount of troubleshooting involved, which will be
considerable.
--Josh Berkus