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bug#44849: [PATCH] Make XEmacs compat variable warning-level-aliases obs

From: Basil L. Contovounesios
Subject: bug#44849: [PATCH] Make XEmacs compat variable warning-level-aliases obsolete
Date: Tue, 24 Nov 2020 21:00:41 +0000
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) 
Stefan Kangas <stefan@marxist.se> writes:

> "Basil L. Contovounesios" <contovob@tcd.ie> writes:
>
>> Why the cdr-safe?
>
> To avoid this:
>
> (and (assq level warning-level-aliases)
>      (cdr (assq level warning-level-aliases)))

But (cdr nil) is well-defined as being nil.

-- 
Basil
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