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From: Richard Stallman <rms@gnu.org>
Newsgroups: gmane.emacs.bugs
Subject: Re: How to run server-start only if not already running?
Date: Wed, 07 Nov 2007 02:56:42 -0500
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Xref: news.gmane.org gmane.emacs.bugs:16935
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      (add-hook 'kill-emacs-hook
	(lambda () (condition-case nil
		       (delete-file (expand-file-name server-name
						      server-socket-dir))
		     (error nil))))

Is it necessary to delete a socket explicitly when the process that
created it dies?  If so, shouldn't server.el do this normally?  It
appears currently to do delete the file only when you start a server,
not when you kill the Emacs.

If that change were made, your hack would be simpler, and we could
put into server.el too.  Why not?