[O] [orgmode 7.7] - Latex export problem with footnote, macro and code block evaluation

[Roland Donat]

Hello everyone,

I am experience a very strange problem so that any help would be appreciated! 

I precise that I use org-mode 7.7 on Linux/Debian. 

I tried to perform latex export of the following org file :

=== cut here begin ===
# -*- coding: utf-8 -*-
#+TITLE: Title
#+AUTHOR: Roland

#+OPTIONS: H:3 num:t toc:nil \n:nil @:t ::t |:t ^:{} f:t TeX:t author:t

#+LaTeX_CLASS: article
#+LaTeX_CLASS_OPTIONS: [a4paper,twoside,10pt]

#+LATEX_HEADER: \usepackage{booktabs}

#+MACRO: TBL src_emacs-lisp[:var v=$1[$2,$3]]{v}


#+TBLNAME: test-macro
| 1 |

#+TBLNAME: Test-latex
| A | B |
|---+---|
| 1 | 3 |
| 2 | 4 |


* The footnote
A footnote [fn:a: youhou!] 

* The macro
The value (0,0) of table test-macro is {{{TBL(test-macro,0,0)}}}.

* The code block

#+begin_src latex :noweb yes
 \begin{table}
   \centering
   \begin{tabularx}{0.9\textwidth}{p{1.5cm}X}
     <<booktabs-2(table=test-latex)>>
   \end{tabularx}
 \end{table}
#+end_src

#+srcname: booktabs-2
#+begin_src emacs-lisp :var table='((:head) hline (:body))
(flet ((to-tab (tab)
               (orgtbl-to-generic
                (mapcar (lambda (lis)
                          (if (listp lis)
                              (mapcar (lambda (el)
                                        (if (stringp el)
                                            el
                                          (format "%S" el))) lis)
                            lis)) tab)
                (list :lend " \\\\" :sep " & " :hline "\\hline"))))
  (org-fill-template
   "
\\toprule
%table
\\bottomrule\n"
   (list
    (cons "table"
          ;; only use \midrule if it looks like there are column headers
          (if (equal 'hline (second table))
              (concat (to-tab (list (first table)))
                      "\n\\midrule\n"
                      (to-tab (cddr table)))
            (to-tab table))))))
#+end_src

=== cut here end ===

Unfortunately, I get the error message : org-export-latex-preprocess: Wrong type argument: integer-or-marker-p, nil

But when I comment the content of one of the 3 headers, the export is done just fine. The combination of a footnote, a macro call and a code block evaluation seems to be not compatible. Sounds weird, doesn't it? 

Anybody see what is happening?

Thank you in advance for your help!

Roland.