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From: Joseph Barillari <jbarilla@princeton.edu>
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Subject: Re: Gnus and Mailcrypt
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>>>>> "JM" =3D=3D J=E9r=F4me Marant <jmarant@nerim.net> writes:

    JM> Sean Neakums <sneakums@zork.net> writes:
    >> I think this also helps; it's been a while since I configured
    >> MailCrypt.
    >>=20
    >> (setq gnus-buttonized-mime-types (cons "multipart/signed"
    >> gnus-buttonized-mime-types)

    JM>   Works fine for me! Thanks a lot!

I'm surprised. In my installation, gnus-buttonized-mime-types doesn't
get defined until _after_ .gnus is loaded, so emacs choked on the line:

Debugger entered--Lisp error: (void-variable gnus-buttonized-mime-types)
  (cons "multipart/signed" gnus-buttonized-mime-types)
        (blah (blah blah)...)

I added "multipart/signed" to my customize entry instead.=20

Should the line above have worked? I'm new to elisp, but I thought you
couldn't assign to a variable if the RHS of the expression was defined
in terms of the variable itself, and the variable wasn't yet
defined. Should emacs assume that gnus-buttonized-mime-types would
evaluate to an empty list? Or is gnus-buttonized-mime-types supposed
to be defined by the time .gnus-reading happens?

Thanks,

 --Joe