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Date:	Fri, 5 Apr 2002 03:35:44 -0500
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From:	Tim Goodwin <tjg@star.le.ac.uk>
To:	rc@hawkwind.utcs.toronto.edu
In-reply-to: <200204042154.g34LsCA02397@rakitzis.com> (byron@rakitzis.com)
Subject: Re: rc 1.6 $version
References:  <200204042154.g34LsCA02397@rakitzis.com>

> I would have thought you'd want to export $prompt.

It's exported if it's changed from the default.

The motivation for doing so was this little snippet:

    $ env - rc
    ; printenv
    PATH=/usr/local/bin:/usr/bin:/bin:.
    prompt=; ^A

No point in cluttering the environment with a value that any
descendant rc process would default to anyway.  And since I'd just
invented the mechanism to export $version only if it's assigned to
(all 3 lines of code of it!), I thought I'd use it.

So in the dev version, we get this.

    $ env - rc
    ; printenv
    PATH=/usr/local/bin:/usr/bin:/bin:.
    ; prompt=('rc$ ' '')
    rc$ printenv
    PATH=/usr/local/bin:/usr/bin:/bin:.
    prompt=rc$ ^A

(And even PATH goes away if you build with `--disable-def-path'.)

Tim.