+ (maybe-clobber-ftype name)
+
+ ;; Check for hash-table stuff. Woe onto him that mixes encapsulation
+ ;; with this.
+ (when (and (symbolp name) (fboundp name)
+ (boundp '*user-hash-table-tests*))
+ (let ((old (symbol-function name)))
+ (declare (special *user-hash-table-tests*))
+ (dolist (spec *user-hash-table-tests*)
+ (cond ((eq old (second spec))
+ ;; test-function
+ (setf (second spec) new-value))
+ ((eq old (third spec))
+ ;; hash-function
+ (setf (third spec) new-value))))))
+
+ ;; FIXME: This is a good hook to have, but we should probably
+ ;; reserve it for users.