For sometime I've been using my own copy of eldoc from emacs because
the version with xemacs didn't work with slime[1]. I'm not sure
what's changed, but the version with xemacs works fine now.
But I also updated the eldoc to work with xemacs. You can find the
version at
http://github.com/rtoy/xemacs-hacks/tree/master/eldoc.
The only thing needed to make it work with xemacs is contained in
eldoc-xemacs.el. Two are simple help functions that don't currently
exist in xemacs and the last is string-match-p.
AFAICT, this version works like the version with xemacs. I don't do
much elisp programming, so I don't know if it's completely working or
not, but simple things appear to be fine.
There is a minor difference with slime where the function args aren't
highlighted, but they are with xemacs' eldoc. Haven't figured out why
yet.
I've only run this with 21.5; don't know if it works on 21.4 or not.
Anyway, if anyone wants to update xemacs, I can help with that or
supply a patch.
Ray
Footnotes:
[1]
http://http://common-lisp.net/project/slime/
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