nntodo in XEmacs, problems

[Uwe Brauer]

Hello

I tried to use nntodo.el written by Kai Grossjohann, within XEmacs.
Compiling the file I got the warning 
  !! Wrong number of arguments ((replace-regexp-in-string 5))

The culprit are these lines:
(easy-mmode-define-minor-mode
 gnus-todo-mode
 "Minor mode for nntodo summary buffers.
Without ARG, toggle gnus-todo-mode.
With ARG, turn on iff ARG is positive, else turn off."
 nil
 " Todo"
 gnus-todo-mode-map)


So it seems the implementation of easy mmode in XEmacs seems not to be
compatible with the above syntax. I wrote already Kai, but did anybody
else successfully  used nntodo within XEmacs?

Thanks 

Uwe Brauer