(emacs-version)
"XEmacs 21.2 \"Dionysos\" [Lucid] (i586-pc-linux, Mule) of Sat May 22 1999
on quarter"
Run XEmacs with
xemacs -vanilla
and enter Info-mode and press DEL or BS.
Then XEmacs says,
Wrong type argument: number-char-or-marker-p, nil
I don't know why, but last-command-char returns nil here.
--
Yoshiki Hayashi