I have gotten many good ideas from these replies to my question. Thanks to all.
> On Mar 7, 2016, at 10:10 AM, Loris Bennett <loris.benn...@fu-berlin.de> wrote:
>
> Eric S Fraga <e.fr...@ucl.ac.uk> writes:
>
>> On Monday, 7 Mar 2016 at 09:55, Loris Bennett wrote:
>>
>> [...]
>>
>>> Would you be able to share what you load in custom.el and esf-org.el, or
>>> a least explain what needs to be done?
>>
>> My custom.el is the emacs customisations (for variables and faces that
>> usually ends up in your .emacs) and esf-org.el is my full org
>> initialisation which is rather large and convoluted. There is nothing
>> in either of those that should help solve the problem you are
>> having... but, then again, I'm not sure why you are having the problem
>> you encounter!
>>
>> Do you get the same backtrace with -Q as in the previous post?
>
> Apart from the Debian gubbins, yes. However, I seem to have solved the
> problem.
>
> With the following ~/.emacs_minimal
>
> (add-to-list 'auto-mode-alist '("\\.org\\'" . org-mode))
>
> I get:
>
> $ emacs /home/loris/org/gtd.org -Q -batch --load ~/.emacs_minmal -eval
> '(org-icalendar-export-to-ics))' --kill
> Symbol's value as variable is void: org-agenda-default-appointment-duration
>
> However, with ~/.emacs_minimal as
>
> (add-to-list 'auto-mode-alist '("\\.org\\'" . org-mode))
> (org-agenda-to-appt)
>
> I get
>
> $ emacs /home/loris/org/gtd.org -Q -batch --load ~/.emacs_minmal -eval
> '(org-icalendar-export-to-ics))' --kill
> No event to add
> Saving file /home/loris/org/gtd.ics...
> Wrote /home/loris/org/gtd.ics
>
> So I was just being too minimalist. org-agenda-to-appt seems to be some
> cruft I copied from here:
>
> http://sachachua.com/blog/2007/11/setting-up-appointment-reminders-in-org/
>
> I'll go and look what it does whether I still need it.
>
> Cheers,
>
> Loris
>
> --
> This signature is currently under construction.
—
Bob Love
"Neil Armstrong was the first human on the moon. Neil A backwards is alien."
Listening to: Promontory by Circa Paleo
