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redefining/re-evaluating a defcustom [was: Modifying many function calls


From: Drew Adams
Subject: redefining/re-evaluating a defcustom [was: Modifying many function calls]
Date: Wed, 27 Oct 2010 07:24:45 -0700

> > why I can't redefine a variable with defcustom? I mean if I do
> >
> > (defcustom x 1) then I want to change it
> > and I write and evaluate (defcustom x 2)
> >
> > then even if I set it to nil and the reevaluate again still 
> > it doesn't care. Is that normal?
> 
> AFAIK yes. It's little bit like with `defvar', but not that strictly, 
> rather unpredictable.

I think it's completely predictable. Yes, it's like `defvar'.

> Use `setq' ... to make sure the new value is taken.

Interactively, you can just put point inside the defcustom somewhere and hit
`C-M-x'.




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