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Subject:	Re: After Cygwin and XEmacs upgrade, read-only files aren't detected
References:	<868z0cqurm DOT fsf AT earthlink DOT net>
From:	dmkarr AT earthlink DOT net (David M. Karr)
Date:	02 Nov 2002 20:16:02 -0800
In-Reply-To:	<868z0cqurm.fsf@earthlink.net>
Message-ID:	<86fzujcmpp.fsf@earthlink.net>
Lines:	27
User-Agent:	Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Military Intelligence (RC5 Windows))
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>>>>> "David" == David M Karr <dmkarr AT earthlink DOT net> writes:

    David> Last night I upgraded my Cygwin and Cygwin/XEmacs installations to the latest.
    David> Today, I noticed that XEmacs can no longer notice that read-only files are
    David> read-only.  Normally, it detects that, and sets the buffer to be read-only.

    David> I did report this to the XEmacs group, but they're not aware of any recent
    David> changes that could be related to this.

    David> Is there some recent Cygwin feature change that could be causing this?

I discovered that if I change my CYGWIN variable from "tty" to "tty nontsec"
this now behaves as I would expect, showing a read-only buffer for a read-only
file.

Before discovering this, I also noticed that if a file only had the "read" bits
on, then XEmacs would see it was read-only.  However, if the file had both the
read AND execute bits on (still not having any write bits), then XEmacs would
think it was writable.

Testing the same situation with "vi" showed a read-only buffer, both before and
after changing the CYGWIN variable.

-- 
===================================================================
David M. Karr          ; Java/J2EE/XML/Unix/C++
dmkarr AT earthlink DOT net


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