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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel,gmane.emacs.gnus.general
Subject: Re: gnus / message-send-mail-with-mailclient [patch]
Date: Fri, 17 Mar 2006 13:33:40 +0200
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In-reply-to: <v9wteuqdv4.fsf@marauder.physik.uni-ulm.de> (message from Reiner
	Steib on Thu, 16 Mar 2006 22:27:43 +0100)
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> From: Reiner Steib <reinersteib+gmane@imap.cc>
> Date: Thu, 16 Mar 2006 22:27:43 +0100
> Cc: ding@gnus.org, emacs-devel@gnu.org
> 
> +(defun message-send-mail-function ()
> +  "Return suitable value for the variable `message-send-mail-function'."
> +  (cond ((and sendmail-program
> +	      (executable-find program))
> +	 'message-send-mail-with-sendmail)
> +	((and (locate-library "mailclient")
> +	      window-system
> +	      (memq system-type '(darwin windows-nt)))
> +	 'message-send-mail-with-mailclient)
> +	(t
> +	 'message-smtpmail-send-it)))

Why would you need to test that window-system is non-nil?  Perhaps I'm
missing something, but I don't see anything in mailclient.el that
would require an Emacs windowed display.  Can you explain?

For that matter, why the test for system-type?  Won't it work on other
systems as well?