[O] org version check on start

[Grant Rettke]

Good afternoon,

Yesterday I was fiddling with getting tangling working in a Makefile.
My humanity caught up with me
and I wasn't super vigilant about the order of my command line
arguments to Emacs. Basically, I asked
it to do some work before the correct version of org-mode was loaded.
Now, Emacs and org wouldn't
complain, because 7.9 and 8.x are close enough, at least for my
system. Still, that was a bad idea and
not my intent.

Knowing that I am human though, I had already added this code long ago:

(when (not (string-equal (org-version) "8.2.6"))
  (display-warning
   'org-mode
   (concat
    "Insufficient requirements. Expected 8.2.6. Found " (org-version))
   :emergency))

Just wanted to share that. Everybody who wants to be using a
particular version ought to paste that
into their init somewhere... bound to prevent headaches and save some time.

Kind regards,

Grant Rettke | AAAS, ACM, ASA, FSF, IEEE, SIAM, Sigma Xi
address@hidden | http://www.wisdomandwonder.com/
“Wisdom begins in wonder.” --Socrates
((λ (x) (x x)) (λ (x) (x x)))
“Life has become immeasurably better since I have been forced to stop
taking it seriously.” --Thompson