Date: Thu, 4 Mar 1999 12:09:22 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
X-Sender: eliz AT is
To: Richard Dawe <richdawe AT bigfoot DOT com>
cc: djgpp-workers AT delorie DOT com
Subject: Re: Perl 5.004/5.005 compilation problems
In-Reply-To: <36DD9A38.8A754FF4@meridian22.net>
Message-ID: <Pine.SUN.3.91.990304120751.1354L-100000@is>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Reply-To: djgpp-workers AT delorie DOT com


On Wed, 3 Mar 1999, Richard Dawe wrote:

> Under DOS with doskey running I got the following error:
> 
> 	Invalid opcode in RMCB at eip=3f000, flags=3086
> 	... ... ... error=0006
> 	Stack fault in RMCB at eip=3f03a, flags=3097
> 	... ... ... error=0000

Is this with go32-v2 from djdev202.zip?  If so, it probably means some
very deep stack overflow in the program that runs when this happens.
What exactly gets executed when it crashes like this?

> It got as far as making a suggestion for "What
> optimizer/debugger flags should be used?" and then crashed as per usual.

``Per usual''--how?  Again with invalid opcode in RMCB etc.?

> One thing I noticed while running it under DOS was that it was detecting
> Win95's find & sort commands because c:\windows\command was in my path before
> e:\djgpp\bin. Will this make any difference?

Of course it will!  Please make sure DJGPP's bin subdirectory is first
on your PATH.

> Also, I have Activeware's Win32 Perl installed, and the Configure script
> detected it. Will this make any difference?

Probably.  Remove that perl from the PATH or rename the binary, to be
on the safe side.

> 	Here's the diff:

It is much better to use "diff -c", it gives some content to go with
the changes.

> 126,128c126,128
> < if (PATH=.; alias -x) >/dev/null 2>&1; then
> <               inksh=true
> < fi

I think I know what happens here.  The ported Bash runs parenthesized
commands in the same process (because there's no fork), so any changes
done there propagate into the script.  Replace (foo) > /dev/null with
`foo > /dev/null`, and it should work.

Laszlo, how does this work for you?  (I haven't myself built this 
version of Perl yet.)

> ---
> > #if (PATH=.; alias -x) >/dev/null 2>&1; then
> > #        inksh=true
> > #fi
> 3013,3023c3013,3023
> < if test -f /venix; then
> <       echo "Actually, this looks more like a VENIX system..."
> <       echo exit 0 >venix
> < else
> <       echo " "
> <       if ./xenix; then
> <               : null
> <       else
> <               echo "Nor is it Venix..."
> <       fi
> < fi

I don't see anything bad here.  Which line exactly crashes?