Re: Drop tarball releases and go ELPA only

[Arash Esbati]

Ikumi Keita <ikumi@ikumi.que.jp> writes:

>>>>>> Arash Esbati <arash@gnu.org> writes:
>> Thanks for confirming.  So the whole change looks like this, or am I
>> missing something?
>
> [...]
>
>> +;; This can be used for starting up AUCTeX, e.g., when not installed
>> +;; ELPA.  The following form should safely be undone using
>> +;; (unload-feature 'tex-site).
>
> Is the second sentence true? With this patch, (unload-feature 'tex-site)
> failed for me with
> Loaded libraries ("/home/keita/repo/auctex/auctex/auctex-autoloads.el"
> "/home/keita/repo/auctex/auctex/auctex.el") depend on
> /home/keita/repo/auctex/auctex/tex-site.el
> for initial code
>   (add-to-list 'load-path "~/repo/auctex/auctex")
>   (load "auctex.el" nil t t)
> in init.el.

Thanks for catching this, I'm not sure what I've done as I was testing
this :-(  Without the patch, it says:

  (error "Loaded libraries ("/path/to/auctex/auctex-autoloads.el")
         depend on /path/to/auctex/tex-site.elc")

> My understanding is that once a library foo.el is required by other lisp
> file(s), `unload-feature' can not undo it.

Yes, that's true.  This is from Emacs Lisp manual[1]:

  Ordinarily, unload-feature refuses to unload a library on which other
  loaded libraries depend. (A library a depends on library b if a contains
  a require for b.) If the optional argument force is non-nil,
  dependencies are ignored and you can unload any library.

So the conclusion is apply the patch with the comment adjusted and if
someone wants to unload tex-site, s?he has to use the FORCE arg?

Best, Arash

Footnotes:
[1]  https://www.gnu.org/software/emacs/manual/html_mono/elisp.html#Unloading