From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric S Fraga <e.fraga@ucl.ac.uk>
Subject: Re: LaTeX export with listings: unknown language "calc"
Date: Sat, 13 Feb 2016 21:23:33 +0000
Message-ID: <87r3ggs3sa.fsf@ucl.ac.uk>
References: <110CD6D2-4B16-4E2B-81FA-35AFB0D978E1@axelkielhorn.de>
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In-Reply-To: <110CD6D2-4B16-4E2B-81FA-35AFB0D978E1@axelkielhorn.de> (Axel
	Kielhorn's message of "Sat, 13 Feb 2016 16:35:36 +0100")
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To: Axel Kielhorn <org-mode@axelkielhorn.de>
Cc: Org-Mode Mailing List <emacs-orgmode@gnu.org>

On Saturday, 13 Feb 2016 at 16:35, Axel Kielhorn wrote:
> Hello!
>
> I use some calc in my org document:
>
> #+begin_SRC calc :var x=5 :var y=2 :exports both
>   2 + a * x ** y
> #+end_SRC 
>
> When I export this to LaTeX the listings package complains about an
> unknown language calc.
>
> To fix this I simply define a language:
>
> #+LATEX_HEADER: \usepackage{listings}
> #+LATEX_HEADER: \lstdefinelanguage{calc}{morekeywords={}}

Basically, yes.  I have

#+latex_header: \lstdefinelanguage{calc}{}

for the second line.

> Is this the correct way to do this?
> Should this be added to the documentation?

Probably...
-- 
: Eric S Fraga (0xFFFCF67D), Emacs 25.0.90.1, Org release_8.3.3-565-g4f499f