+;;;###autoload
+(defun gnus-registry-install-nnregistry ()
+ "Install the nnregistry refer method in `gnus-refer-article-method'."
+ (interactive)
+ (cond ((eq 'nnregistry gnus-refer-article-method))
+ ((null gnus-refer-article-method)
+ (setq gnus-refer-article-method 'nnregistry))
+ ((consp gnus-refer-article-method)
+ (unless (memq 'nnregistry gnus-refer-article-method)
+ (setq gnus-refer-article-method
+ (append gnus-refer-article-method '(nnregistry)))))
+ (t
+ (setq gnus-refer-article-method
+ (list gnus-refer-article-method 'nnregistry)))))
+