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Re: About `unload-feature'

From: Dmitry Gutov
Subject: Re: About `unload-feature'
Date: Wed, 02 Jan 2013 03:23:41 +0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (windows-nt)

Xue Fuqiao <> writes:

> (info "(elisp) Unloading") says:
> Before restoring the previous definitions, `unload-feature' runs `remove-hook'
> to remove functions in the library from certain hooks. These hooks include
> variables whose names end in `-hook' (or the deprecated suffix `-hooks'), plus
> those listed in `unload-feature-special-hooks', as well as `auto-mode-alist'.
> This is to prevent Emacs from ceasing to function because important hooks 
> refer
> to functions that are no longer defined.
> What does `ceasing to function' mean?  Can anybody help?  Thanks.

Looks like a hyperbole.

It would still function, but signal [lots of] "function is undefined" errors.

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