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From:	Rugxulo <rugxulo AT gmail DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Dificulty using open() with O_EXCL on Windows 2000
Date:	Thu, 26 Mar 2009 07:20:30 -0700 (PDT)
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To:	djgpp AT delorie DOT com
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Hi,

On Mar 26, 2:18=A0am, "Juan Manuel Guerrero" <juan DOT guerr DOT  DOT  DOT  AT gmx DOT de>
wrote:
>
> While I was porting Perl 5.8.9 I have noticed that the port is not able
> to create temporary files on Win2K. =A0On MSDOS 6.0 and WinXP everything
> works fine.
> This issue has already been reported some time ago by a user. See
> <http://www.delorie.com/archives/browse.cgi?p=3Ddjgpp/2008/04/17/02:16:35=
>

The only Win2k user I know of is Robert Riebisch, probably because
that OS wasn't targeted at home desktops. I assume you've already
contacted him (or he'll read this here), but if not, e-mail him.
Anyways, here's what he said in the same thread:

>>    Error in tempfile() using c:/djgpp/tmp/XXXXXXXXXX:
>
> Yes, same here!
>
>> or does it work fine?
>
> No. ;-)
>
> But perl561b works fine.

So it must be a regression somewhere if it worked before. (But I have
heard that Win2k has various NTVDM bugs that were later fixed for XP.
Win2k is still barely supported by MS, though I doubt that means
"trivial" bugfixes, sadly.)

> Is this behaviour to be expected or am I missing something?
> If this is a bug it will appears everytime O_EXCL is used on Win2K.
> Is there a way to certainly detect Win2K at runtime? =A0If there is no
> way to identify Win2K, then O_EXCL must be removed from the mode list.

No direct way through DJGPP calls that I know of. But "ver" should
report NT 5.0 (instead of 5.1 for XP or 6.0 for Vista).

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