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Subject: Re: [patch] fix empty environment handling
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From: "stsp (stsp2 AT yandex DOT ru) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
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Date: Mon, 19 Aug 2019 01:59:10 +0300
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19.08.2019 1:04, Juan Manuel Guerrero (juan DOT guerrero AT gmx DOT de) [via 
djgpp AT delorie DOT com] пишет:
> Sorry for creating confusion.  On Windows comcom32 works fine.
> This means it produces a prompt and you can run commands when
> the environment is large enough.

Thank you very much for the testing!
I updated the shell to work properly w/o env increase:
https://github.com/stsp/comcom32/raw/master/tmp/comcom32.exe
You don't need this of course. :)

> My intention was to report that no error like in MSDOS 6.22
> is produced by Windows versions so it looks to me as if this
> issue is really DOS specific and has been fixed in later Windows
> versions as you noted already.

When you run something from under windows, environment
can't be empty, simply because it is not the beginning of a
boot process. OS is already loaded, environment is filled.
So whether or not it is fixed, it will likely never trigger.


> Even on plain MSDOS 7.10 I have experienced no issue. To be
> sure that comcom32.exe is really used at booting on 7.10, I have
> renamed the command.com installed in c:\windows\.  On plain
> 7.10 I get no message like on 6.22 and comcom32 works and
> runs programs when the environment is large enough. 
Thanks, so the patch doesn't hurt.
The interesting thing though is that "strip" command
of djgpp complains on that binary, it doesn't like the
modified stub. Does it have to be re-built? But any idea
why does it compare the stub for an exact match, and
can this be relaxed?