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From: Per Abrahamsen <abraham@dina.kvl.dk>
Newsgroups: gmane.emacs.gnus.general
Subject: Re: Please unbundle the custom and widget libraries from qgnus.
Date: 21 Sep 1997 18:39:15 +0200
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Hrvoje Niksic <hniksic@srce.hr> writes:

> Stainless Steel Rat <ratinox@peorth.gweep.net> writes:
> >
> > Oh, and by the way, I remembered what I found to be evil about
> > custom: once it has set things it is impossible to change them
> > without exiting and restarting GNU Emacs.
> 
> Huh?  Can you be more specific?

Sounds like meta variables[1], another old discussion which is
completely[2] unrelated to custom.  Most of the `gnus-use-whatever'
variables are meta-variables.

Footnotes: 
[1]  Variables whose value is not used directly by the code, but
instead used for initializing other variables. 

[2]  Although with custom, you could theoretically add a `:set' clause
which would make changes to meta variables to take effect automatically.