Date:	Thu, 13 Mar 1997 18:57:29 +0200 (IST)
From:	Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To:	Stefano Brozzi <brozzis AT mag00 DOT cedi DOT unipr DOT it>
cc:	djgpp AT delorie DOT com
Subject:	Re: error executing
In-Reply-To:	<3328299D.3E24@mag00.cedi.unipr.it>
Message-ID:	<Pine.SUN.3.91.970313184951.7166A-100000@is>
MIME-Version:	1.0

On Thu, 13 Mar 1997, Stefano Brozzi wrote:

> But now I've tried to compile the JPEG 6a ditribution. 
> It compiles fastly, without warns, but its large EXEs hang my dos box,
> without any message

Does the distribution you used support MSDOS/DJGPP?  Or did you compile 
the original Unix sources?  If there's no DJGPP support, chances are you 
are producing a program that has bugs on MSDOS.

Are you invoking the .exe program or the one without an extension?  
Please make sure that the executable that you invoke has "MZ" magic 
signature as its first 2 bytes.

> I've read about a buggy DPMI, but I have no idea how to disable it in a
> dos box

You can't, and you shouldn't bother, as Windows 95 is not one of the 
buggy DPMI hosts that should be turned off.

> CWSDPMI complains about ...
> 
>         e:\djgpp\bin>cwsdpmi.exe
>         Protected mode not accessible.

That is OK.  You cannot run CWSDPMI inside Windows' DOS box.  Windows 
itself serves as your DPMI host, so CWSDPMI is not even loaded by DJGPP 
programs.

> due to large EXE size, I've tried to use PKLITE.EXE, an EXE 
> compress-but-execute program available at simtel in msdos/execomp/.

Don't use PKLITE with DJGPP programs, it doesn't know about the special
format of DJGPP .exe files.  DJGPP has its own exe compressor
(v2misc/mlp105b.zip from the same place you get DJGPP). 

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