Date: Sun, 13 Oct 1996 20:33:39 +0200 (MET DST)
From: Mark Habersack <grendel AT ananke DOT amu DOT edu DOT pl>
Reply-To: grendel AT ananke DOT amu DOT edu DOT pl
To: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
cc: "John M. Aldrich" <fighteer AT cs DOT com>, djgpp-workers AT delorie DOT com
Subject: Re: Install thingy
In-Reply-To: <Pine.SUN.3.91.961013123627.15719F-100000@is>
Message-ID: <Pine.NEB.3.95.961013202854.5686D-100000@ananke.amu.edu.pl>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

On Sun, 13 Oct 1996, Eli Zaretskii wrote:

>I urge you to reconsider.  Hard as it might be, writing it in DJGPP 
It's not a matter of hardness.  I was rather thinking that the install utility
HAS TO run on any system. Doesn't matter whether it's a machine with 8088 or
Pentium.  Install should run gracefully on as small as 256KB of conventional
memory (I've seen some high-end computers with that much free!!).

 >ensures that any problem can always be fixed, since we have source to 
>everything.  If it isn't written with free tools, you might have problems 
>for which there is no solution and no work-around.
I'm writing the code in ANSI C and using #ifdef's wherever compatibility
issues come into play.  This way if there are any unvincible problems with TC
code, I can always move to DJGPP.

>> TC uses DOS calls to invoke external programs and this means that they are
>> ALWAYS passed path\myname.exe as argv[0].  If this is true, install might use
>> another approach to notify djverify it is run as its child.  I could hook INT
>> 2Fh and install a callback known to djverify.  The latter would check if
>> installer is in memory and behave according to the result.
>
>I rest my case.  Is the above trouble less serious then potential 
>problems with DJGPP code?  I don't think so.
Well, it was just a suggestion... and not a very good one. ;-))

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