From: Drew Adams <drew.adams@oracle.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>, help-gnu-emacs@gnu.org
Subject: RE: Why is `emacs' a feature?
Date: Sun, 18 Oct 2020 08:19:55 -0700 (PDT) [thread overview]
Message-ID: <e1dee4c8-1ee2-4749-98c8-77b6f347d2ec@default> (raw)
In-Reply-To: <jwvh7qrmzbn.fsf-monnier+emacs@gnu.org>
> > Why is (featurep 'emacs) true?
>
> Historically, `emacs` was added as a feature as a consequence of
> `xemacs` being a feature. IIRC it was felt that you shouldn't have
> to say (not (featurep 'xemacs)) to test "is this the true Emacs?".
>
> As for why `xemacs` was added as a feature, I don't know.
> It was probably to provide a cleaner alternative to
> (string-match "..XEmacs.." emacs-version).
Thank you.
The question was raised here, in the context of
`use-package':
https://emacs.stackexchange.com/q/61276/105
prev parent reply other threads:[~2020-10-18 15:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-18 1:42 Why is `emacs' a feature? Drew Adams
2020-10-18 1:58 ` Emanuel Berg via Users list for the GNU Emacs text editor
2020-10-18 13:40 ` Stefan Monnier
2020-10-18 15:19 ` Drew Adams [this message]
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