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Date: Mon, 20 Sep 2004 07:19:39 -0700 (PDT)
From: Bart Schaefer <schaefer@brasslantern.com>
Reply-To: zsh-workers@sunsite.dk
To: Zsh hackers list <zsh-workers@sunsite.dk>
Subject: Re: PATCH: SHLVL not updated in environment
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Message-ID: <Pine.LNX.4.61.0409200710120.3533@toltec.zanshin.com>
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On Mon, 20 Sep 2004, Peter Stephenson wrote:

> % zsh
> % print $SHLVL
> 3
> % printenv SHLVL
> 2
> 
> This is a bug, right?  I'm not missing some extreme sublety?

That seems to be the way it worked before 4.2.1.

> It seems that SHLVL has to be exported for it to work, although the
> documentation doesn't explicitly indicate it always will be exported.

It *is* always exported, though:

schaefer[520] zsh -f
toltec% typeset -p SHLVL
typeset -i10 -x SHLVL=2

> Is this the right fix, rather than reversing the sense of the test?

I think it's right, but it begs the question:  What changed from 4.2.0
to make this fix necessary?