Date: Mon, 10 Sep 2001 23:31:19 +0300
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: "Tim Van Holder" <tim DOT van DOT holder AT pandora DOT be>
Message-Id: <7458-Mon10Sep2001233119+0300-eliz@is.elta.co.il>
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CC: djgpp-workers AT delorie DOT com, perl5-porters AT perl DOT org
In-reply-to: <001201c13a17$20353020$747d76d5@pandora.be>
	(tim DOT van DOT holder AT pandora DOT be)
Subject: Re: Win2k + djgpp
References:  <001201c13a17$20353020$747d76d5 AT pandora DOT be>
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> From: "Tim Van Holder" <tim DOT van DOT holder AT pandora DOT be>
> Date: Mon, 10 Sep 2001 18:39:13 +0200
> > 
> >   base/cond......c:/util/djgpp/tmp/dj310000: Cannot duplicate 
> > fd 1: Bad file descriptor (EBADF)
> >   FAILED at test 0
> 
> There's a known problem with file descriptors perl-spawned
> programs (present in 5.6.0, 5.6.1 and 5.7.2), which prevents
> autoconf > 2.50 from functioning under DJGPP.  I've yet to find
> either cause or solution (Laszlo, you have any idea?).  A test
> case is attached - run normally, foo.exe will allocated
> FDs 5 - 19 for the testfiles; if run from the perl script, it
> gets FDs 3 - 17 (and 3 and 4 are not supposed to be used, IIRC).

Why is this a problem, and how does it cause the EBADF failure?

I don't think a program (Perl in this case) should assume anything
about the descriptors that are preconnected, beyond the standard 3
ones.