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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Why subr.el doesn't provide a feature?
Date: Thu, 29 Aug 2019 15:38:50 +0300
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To: Zhu Zihao <all_but_last@163.com>
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In-reply-to: <87pnko8cgb.wl-all_but_last@163.com> (message from Zhu Zihao on
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> Date: Thu, 29 Aug 2019 18:59:00 +0800
> From: Zhu Zihao <all_but_last@163.com>
> Cc: Zhu Zihao <all_but_last@163.com>,
> 	emacs-devel@gnu.org
> 
> Should we add a provide form for subr?

Why is it needed?

> I ask this question because I see a elisp
> file wrote "(require 'subr)" and no doubt that it failed to run because subr.el
> didn't provide such feature.

That's a bug in that Lisp file, isn't it?