From mboxrd@z Thu Jan  1 00:00:00 1970
From: suvayu ali <fatkasuvayu+linux@gmail.com>
Subject: Re: [babel] VC-Log does not run correctly
Date: Fri, 9 Sep 2011 17:08:27 +0200
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To: Sebastien Vauban <wxhgmqzgwmuf@spammotel.com>
Cc: emacs-orgmode@gnu.org

Hi Seb,

On Thu, Sep 8, 2011 at 4:16 PM, Sebastien Vauban
<wxhgmqzgwmuf@spammotel.com> wrote:
> =A0(when (vc-find-backend-function
> =A0 =A0 =A0 =A0 (vc-backend (buffer-file-name (get-buffer buf))) 'print-l=
og)
>

AFAIU from a previous issue (more than a year back I think), you need
to ensure buffer-file-name returns  something reasonable. The problem
is if it is evaluated in a temporary buffer (is that the case during
export?) then it will return nil which confuses vc.

Hope this helps.

--=20
Suvayu

Open source is the future. It sets us free.