Comment 17 for bug 1307180

I fear you might have to either make a small change to your software or let the package-system fail.

Clobbering asdf:*system-definition-search-functions* is not modular and not future-proof — and not present-proof, either, it seems. What's wrong with the suggestion to not clobber it but instead just disable central-registry and source-registry in a different way, i.e.

(let ((asdf:*central-registry* nil)
          (asdf::*source-registry* (make-hash-table :test 'equal)))
   ...)