[Orgmode] org-publish.el breaks for XEmacs

[Miguel A. Figueroa-Villanueva]

Hello,

I updated org-mode, but the following line in the org-publish.el broke
the compilation for XEmacs.

(require 'dired-aux)

It appears that xemacs doesn't have the dired-aux package (at least my
version 21.4.20 doesn't). If I comment out the require command it
works. Hence, I would suggest the following addition to only require
the package if it is an emacs installation:

(setq running-xemacs (string-match "XEmacs\\|Lucid" emacs-version))
(if (not running-xemacs)
    (require 'dired-aux)
  )

Thoughts?

--Miguel