Date:	Sun, 25 Apr 1999 11:58:13 +0300 (IDT)
From:	Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender:	eliz AT is
To:	Li Hongwei <hwli AT cnn DOT corp DOT fedex DOT com>
cc:	djgpp AT delorie DOT com
Subject:	Re: DJGPP programme on Win NT
In-Reply-To:	<7fpeki$o194@is1.network.fedex.com>
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MIME-Version:	1.0
Reply-To:	djgpp AT delorie DOT com
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On Fri, 23 Apr 1999, Li Hongwei wrote:

> If I call this programe in another application (may be written by Delphi,
> may be written by Perl). Everything is fine except the link() and unlink()
> can't function properly. The error massage says: Unproper Link ...and the
> error code is EXDEV, means trying to move files between different file
> systems.

More details are required to analyze this problem and suggest
solutions.  One piece of data that is sorely needed is the names of
the files passed by the parent programs to the failing DJGPP program
that uses `link' and `unlink', EXACTLY as these library functions get
them.  (One way of getting this information would be to arrange for
the names to be written to a disk file.)

One particularly nasty set of problems you might have bumped into is
when the files have long names, i.e. if they exceed the DOS 8+3 limits
or include characters that are invalid in DOS file names.  In general,
NT should convert those file names to their 8+3 aliases when it
invokes DJGPP programs (and DOS programs in general), but you might be
invoking the DJGPP program directly, and so the file-name conversion
doesn't happen.  DJGPP programs cannot access long file names on NT.

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