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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: set-file-extended-attributes and backups
Date: Sun, 23 Dec 2012 05:54:17 +0200
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To: Fabrice Popineau <fabrice.popineau@supelec.fr>
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> From: Fabrice Popineau <fabrice.popineau@supelec.fr>
> Date: Sun, 23 Dec 2012 00:03:54 +0100
> Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org
> 
> Eli as offered an interesting option : to avoid trying to set the acl if
> it hasn't changed.

I will do this as part of the Windows implementation of the ACL
interfaces.  So if this kind of no-op ACL setting can barf only on
Windows, I think a warning in set-file-extended-attributes should be
enough.