-;;; This doesn't work:
-;;; ###autoload (autoload 'grep-mode "grep" nil t)
-;;; The ostensibly correct result is nonetheless opaque to the accounting
-;;; done in `generate-file-autoloads'; in loaddefs.el, the generated elisp is
-;;; correct but the generated header comment for grep.el lacks `grep-mode'.
-;;; This approach also doesn't help other users of `define-compilation-mode'
-;;; who wish to autoload.
-;;;
-;;; Better to extend autoload.el to grok `define-compilation-mode'.
-
-;;;###autoload