From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <n.goaziou@gmail.com>
Subject: Re: "void-variable: tree" in agenda in emacs 23.4.1
Date: Sat, 11 Jan 2014 10:22:34 +0100
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References: <87fvovxdix.wl%n142857@gmail.com>
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In-Reply-To: <87fvovxdix.wl%n142857@gmail.com> (Daniel Clemente's message of
	"Sat, 11 Jan 2014 13:01:42 +0700")
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To: Daniel Clemente <n142857@gmail.com>
Cc: emacs-orgmode@gnu.org

Hello,

Daniel Clemente <n142857@gmail.com> writes:

>   since some days ago I get an export error after C-a a, batch export, C-=
e on .org files, =E2=80=A6 Backtrace at the end.
>
>   Even (avl-tree--root org-element--cache) or (avl-tree--root nil) produc=
e the same error.
>
>   This is not a bug in org, but in Emacs 23.4.1. avl-tree.el says:
>
> (defmacro avl-tree--root (tree)
>   ;; Return the root node for an avl-tree.  INTERNAL USE ONLY.
>   `(avl-tree--node-left (avl-tree--dummyroot tree)))
>
>   And it should have a comma before the word =E2=80=9Etree=E2=80=9C in th=
e body. Like this (org-mode works with this):
>
> (defmacro avl-tree--root (tree)
>   ;; Return the root node for an avl-tree.  INTERNAL USE ONLY.
>   `(avl-tree--node-left (avl-tree--dummyroot ,tree)))
>
>   This was fixed in emacs from Bazaar (in rev. 104392, Fri 2011-05-27
>   20:03:26 -0300).

I wasn't aware of this bug. Thank you.

>   But at the moment org-mode does not work in Emacs 23.4.1, so I think it=
 should have a work-around.
>   The fix can be: =E2=80=9Eif Emacs version is lower than [=E2=80=A6] the=
n define the macro again with the correct code=E2=80=9C. Like:
>
> (if (version< emacs-version "24")
>   (defmacro avl-tree--root (tree)
>   ;; Backport fix for older versions due to missing comma in ,tree
>   `(avl-tree--node-left (avl-tree--dummyroot ,tree)))
> )

I just avoided to use `avl-tree--root' altogether. Hopefully, this
should fix the problem.


Regards,

--=20
Nicolas Goaziou