defsystem-compatibility
This system is no longer being maintained (at least not by Gary King).

Use ASDF

Defsystem-compatibility papers over the differences between system definition tools and also provides a small set of relective capabilities to help system groveling tools be more portable. More details can be found here on common-lisp.net.

ASDF-install package (obsolete) http://common-lisp.net/project/cl-containers/defsystem-compatibility/defsystem-compatibility_latest.tar.gz

This is another one of Gary King's projects.