I would add a third Elisp block that calls org-babel-tangle. Assuming all
your code blocks execute on export that will make it tangle. Or I have also
made an Elisp block that does the tangle and then runs the export command.
I.e. Not using the keyboard shortcuts for export.

On Thursday, September 24, 2015, Alan Schmitt <
alan.schmitt@polytechnique.org> wrote:

> Hello,
>
> I have a question I feel is very basic but I did not find the answer in
> the manual. How can I trigger the tangling of a block upon export.
>
> More precisely, I want to give the following example in a lecture:
>
> #+name:hello
> #+begin_src ocaml :tangle myprog.ml
> Printf.printf "Bonjour le monde !\n"
> #+end_src
>
> #+BEGIN_SRC sh :exports both :results verbatim
> ocamlc -o myprog myprog.ml
> ./myprog
> #+END_SRC
>
> where I show a program to be compiled and actually compile it. Is there
> a header I should put on the "hello" block to tangle it when I export
> it?
>
> Thanks,
>
> Alan
>
> --
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>


-- 
John

-----------------------------------
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
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@johnkitchin
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