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Re: eval-after-load causes void-variable error


From: Barry Margolin
Subject: Re: eval-after-load causes void-variable error
Date: Fri, 18 Jan 2013 00:15:59 -0500
User-agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X)

In article <address@hidden>,
 Dmitry Gutov <address@hidden> wrote:

> Barry Margolin <address@hidden> writes:
> 
> > In article <address@hidden>,
> >  Sean McAfee <address@hidden> wrote:
> >
> >> For a long time I had this in my .emacs file:
> >> 
> >> (require 'ffap)
> >> (add-to-list 'ffap-alist (cons +my-ffap-regexp+ #'my-ffap-hook))
> >> 
> >> I recently decided to optimize it a bit and changed it to:
> >> 
> >> (eval-after-load 'ffap
> >>   '(add-to-list 'ffap-alist (cons +my-ffap-regexp+ #'my-ffap-hook)))
> >> 
> >> Now, however, as soon as the ffap command is activated, I get an error:
> >> 
> >> Lisp error: (void-variable ffap-alist)
> >> 
> >> Somehow, using eval-after-load is causing the variable ffap-alist to be
> >> unbound, or not bound in the first place.  Does anyone have any idea
> >> what's going on?
> >
> > When you use a feature name rather than a filename (i.e. a symbol rather 
> > than a string) in eval-after-load, it evals as soon as the feature is 
> > provided, not after the file is loaded. ffap.el contains
> >
> > (provide 'ffap)
> >
> > at the beginning of the file
> 
> Does it? If we're talking about ffap.el distributed with Emacs, I only
> see the `provide' from at the end of the file. And according to
> `vc-annotate', it's been there for a few years now.

I'm still running Emacs 22.2, it's the first non-comment in the file.

-- 
Barry Margolin, address@hidden
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***


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