>>>>> In <vaf3cvmav6u.fsf@INBOX.auto.gnus.tok.lucy.cs.uni-dortmund.de>
>>>>>	Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai Gro.AN_johann) wrote:

> ... or remove instead of delete ...

>>>>> In <iluofeakn0k.fsf@latte.josefsson.org>
>>>>>	Simon Josefsson <jas@extundo.com> wrote:

> -  (let ((variables (delete 'gnus-format-specs gnus-variable-list)))
> +  (let ((variables (remove 'gnus-format-specs gnus-variable-list)))

All you are using very new Emacsen, but Emacs 20 users always
need to employ cl for it.

  remove is a compiled Lisp function in `cl-seq'.
  (remove X Y)
  not documented

I think we should put the compiler macro as follows in
dgnushack.el, or we should use the expanded version of the
macro.

(unless (featurep 'xemacs)
  (define-compiler-macro remove (&whole form item seq)
    (if (>= emacs-major-version 21)
	form
      `(delete ,item (copy-sequence ,seq)))))

(compiler-macroexpand '(remove ITEM SEQ))
 => (delete ITEM (copy-sequence SEQ))

By the way, in this particular case, we have no need to use
`delete' but `delq'. :-)
-- 
Katsumi Yamaoka <yamaoka@jpl.org>