BUNDLE-SYSTEMS fails when systems depend on "asdf"

[quicklisp]

This is a two-part problem.

The indexes should not have "asdf" as a required system anywhere.

BUNDLE-SYSTEMS should warn (or signal a continuable error) when a required system isn't found.

[dimitri]

Can it be as simple as in the following quick-editing?

(defun add-systems-recursively (names bundle)
  (with-consistent-dists
    (labels ((add-one (name)
               (let ((system
                      (restart-case
                          (ensure-system name bundle)
                        (ignore ()
                          :report "Ignore this system in the bundle."))))
                 (when system
                   (dolist (required-system-name (required-systems system))
                     (add-one required-system-name))))))
      (map nil #'add-one names)))
  bundle)