bug#17330: files.el cd-absolute overcome false negative from file-executable-p

[Eli Zaretskii]

> From: Achim Gratz <Stromeko@nexgo.de>
> Date: Sat, 03 May 2014 15:58:05 +0200
> 
> Eli Zaretskii writes:
> > If the Cygwin maintainers will decide that this specific situation
> > (whose particulars as far as Windows ACL data of the directory in
> > question was never shown by the OP, by the way), then this would mean
> > it's either a cockpit error (i.e. the user shoot himself in the foot
> > by creating a security descriptor he shouldn't have), or that Cygwin
> > does not intend to support such situations in the first place.
> 
> Cygwin already has the "noacl" mount option which fakes the uid/gid and
> permissions for that file system so that they always look sane from the
> POSIX perspective and then you'll find out when you access the file
> whether you have access.

Yes, I know.  But it's not clear to me at this point that the only
reasonable way out of this is by using "noacl".

> While it's generally a sign of some problematic configuration
> someplace else and introducing some other problems when you have to
> use it, the OP could maybe tell us if that makes a difference to the
> reported problem.

Indeed, having more details about the ACLs of the offending
directories would be good.