Missing line breaks in Beamer with alltt

[Jarmo Hurri <jarmo.hurri@iki.fi>]

Greetings.

Any ideas?

# ----------------------------------------------------------------------------------
#+startup: beamer

#+latex_header: \usepackage{alltt}

* A slide with some code
  - export to beamer pdf with =C-e l O=
  - line breaks disappear from this:
    #+begin_alltt 
    x \in {0, 1, ..., n}
    z \leftarrow x + 1
    #+end_alltt

* An effort to fix this
  - tip from
    https://tex.stackexchange.com/questions/68064/beamer-alltt-environment-and-only
  - the effort is here, but the end result is an error
    #+begin_src latex
      \defverbatim\SomeCode{
      \begin{alltt}
      x \in {0, 1, ..., n}
      z \leftarrow x + 1
      \end{alltt}
      }
    #+end_src

    \SomeCode
# ----------------------------------------------------------------------------------

All the best, and stay safe.

Jarmo