Once in a while, I'll encounter a bad dependency, usually something from a dependency of a dependency of a dependency that I can't easily change. It may be a dependency that I don't want because it causes a problem or conflicts with something my app.

I'd like to be able to specify a 'void' (or 'none' or something) version in my package.fig to say 'dont bother including this'.

e.g.

config default
  exclude foo
  include something-that-includes-foo/1.1
end

(foo will not be included)