(dsssl) dsssl-mode under XEmacs

[Jany Quintard <jany.quintard@xxxxxxx>]

Folks, I am aware that this is a bit out of topic, but I just want to
know if some of you use Xemacs to edit their dsssl specs.

I do and if I can easily switch to dsssl-mode with the command:
M-x dsssl-mode
I can't obtain an automatic switch, based on file extension.

If I put this in my custom.el file
(add-to-list 'auto-mode-alist '("\\.dsl\\'" . dsssl-mode))
I can't open dsl files and get an error, while
(add-to-list 'auto-mode-alist '("\\.dsl\\'" . scheme-mode))
works very good.

There seems to be a workaround (I asked on comp.emacs.xemacs) but not
really complete. So, as many dsssl users are here, I thought that maybe
someone could have had the problem and know of a solution.

Xemacs is version 21.4 and the problem occurs under Linux, Win 2000 and
cygwin.

Jany

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