Correcting myself:
Nicolas Goaziou <n.goaz...@gmail.com> writes:
>
> feng shu <tuma...@gmail.com> writes:
>
>> (unless (and (org-check-external-command "latex" "" t)
>> - (org-check-external-command "dvipng" "" t))
>> + (org-check-external-command "dvipng" "" t)
>> + (org-check-external-command "convert" "" t))
>
> There's a missing `or':
>
> (or (org-check-external-command "dvipng" "" t)
> (org-check-external-command "convert" "" t))
Err. This is still wrong.
Use
(and (org-check-external-command "latex" "" t)
(org-check-external-command
(if (eq processing-type 'dvipng) "dvipng" "convert") "" t))
instead.
--
Nicolas Goaziou
