Building packages with 21.4

[Stephen J. Turnbull]

Michael Sperber writes:
 > 
 > Norbert Koch <viteno at xemacs.org> writes:
 > 
 > > I'm not sure whether I like this approach.  By this we make the package
 > > build dependent of a certain patch level of the stable branch, not the
 > > stable branch itself.  Up to now it's been possible to build the
 > > packages using any stable XEmacs (or later).  With this change this is no
 > > longer possible.
 > 
 > Looking on the xemacs-patches followups, you can see I don't like it
 > much myself---but you can see in autoloads.el that I wasn't the first to
 > add package-specific keywords.  Doing this right requires making the
 > list somehow extensible, and putting the extensions in xemacs-base.  I
 > doubt this is worth it until the count of keywords reaches, say, 20.

It's worth it to people who have an older XEmacs, though.

How about in autoload.el

;;; Don't add keywords here!  Do it in xemacs-base/therightplace.el
(defvar autoload-make-autoload-keywords '(defun ... defmacro))

and in xemacs-base/therightplace.el

;;;###autoload
(progn
  (setq autoload-make-autoload-keywords
        (append autoload-make-autoload-keywords '(defclass defmethod)))
  (put 'defclass 'doc-string-elt 4)
  (put 'defmethod 'doc-string-elt 5))

This isn't fully general, but it handles this case at least.