Re: new image library "requirements"

[Jason Rumney]

David Kastrup wrote:
> Well, the previous behavior was too lax: it led to frequent problem
> reports.  Perhaps we'll figure out something as effective as the
> Draconian approach without a similar annoyance level.
>   

Whether configure aborts or not, I think we should print a summary of
the problems at the end of the configure script.  In the case where we
abort, it should mention the --without-* options the user could use to
configure Emacs with their current set of libraries.