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Message-ID:	<005301c073f1$46aa6aa0$0200a8c0@lifelesswks>
From:	"Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To:	<egf7 AT columbia DOT edu>, <cygwin AT cygwin DOT com>
References:	<000001c073ef$1f26fa40$9b3770c2 AT fifer>
Subject:	Re: Distributed Perl 5.6.1 bug report.
Date:	Mon, 1 Jan 2001 23:49:21 +1100
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Fantastic. I can update the scripts that were broken to use a backup extension.

reagarding the cygwin error - is there some reason you can't assume a .orig extension for the cygwin platform? Or even use a temp
backup extension and then unlink the backup file when finished?

I'm just thinking along maximum transparency for all the unix scripts out there. (The ones I know of are MRTG's configure and
install scripts, some useful cvs scripts.. and I'm not even scratching the surface).

Anyway you've given me a workaround, for which I am very grateful.

Rob

----- Original Message -----
From: "Eric Fifer" <egf7 AT columbia DOT edu>
To: "'Robert Collins'" <robert DOT collins AT itdomain DOT com DOT au>; <cygwin AT cygwin DOT com>
Sent: Monday, January 01, 2001 11:33 PM
Subject: RE: Distributed Perl 5.6.1 bug report.


>
> Robert Collins wrote:
> >    Do the perl 5.6.1 tests include inplace edit testing?
> >I ask because the perl >available for download via 'Cygwin Setup' is
> >deleting files when using inplace edits, rather than editing the file.
>
> To do inplace editing you will need to provide a backup
> extension (-i.orig).  Apparently none of the tests check
> inplace editing with a null backup extension.  You found
> a bug with the Perl Cygwin port and I will fix it, but
> the end result will be this error message:
>
> Can't do inplace edit without backup
>
> Also, just so you know what is going on.  The Perl code
> is taking advantage of the Unix feature where you can
> unlink an open file and the file disappears from the
> file system.  With Cygwin this didn't really work as
> expected and it ended up clobbering your file.  The
> "Permission Denied" message doesn't have anything to
> do with your permissions, but is the error you get
> when you stat() a file that has been deleted but is
> still open.
>
> Hope this helps.
>
> Eric Fifer
>
>
>


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