[O] Bug: Line breaks in exported LaTeX code [7.8.11]

[Uffe Høgsbro Thygesen]

Greetings Orgs

When exporting an .org file to LaTeX, no line breaks are inserted into
the LaTeX source code. With default options from a fresh install, the
LaTeX code will not compile, because documentclass information appears
on the first line of the LaTeX source, which is a comment:

% Created 2012-06-08 Fri 12:58 \documentclass{article} [...]

As an experiment, I changed the the time stamp in org-latex.el from

     (format-time-string "%% Created %Y-%m-%d %a %H:%M\n"))

to

     (format-time-string "%% Created %Y-%m-%d %a %H:%M\r"))

and it appears that pdflatex recognizes this "\r" as a line break and hence
compiles. So the problem seems to be the way the "\n" is written (or not
written) to the LaTeX source file. Which is beyond me.

Test file:


--- file: test.org --------
#+TITLE:Test

Test
--- end file --------------


System and version information:
===============================

Ubuntu 12.04
Emacs  : GNU Emacs 23.3.1 (i686-pc-linux-gnu, GTK+ Version 2.24.10)
 of 2012-03-25 on roseapple, modified by Debian
Package: Org-mode version 7.8.11


current state:
==============
(setq
 org-export-latex-after-initial-vars-hook '(org-beamer-after-initial-vars)
 org-speed-command-hook '(org-speed-command-default-hook
              org-babel-speed-command-hook)
 org-babel-load-languages '((R . t) (latex . t) (ditaa . t))
 org-metaup-hook '(org-babel-load-in-session-maybe)
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 org-babel-tangle-lang-exts '(("latex" . "tex") ("emacs-lisp" . "el"))
 org-export-latex-format-toc-function 'org-export-latex-format-toc-default
 org-tab-first-hook '(org-hide-block-toggle-maybe
              org-src-native-tab-command-maybe
              org-babel-hide-result-toggle-maybe)
 org-src-mode-hook '(org-src-babel-configure-edit-buffer
             org-src-mode-configure-edit-buffer)
 org-confirm-shell-link-function 'yes-or-no-p
 org-export-first-hook '(org-beamer-initialize-open-trackers)
 org-agenda-before-write-hook '(org-agenda-add-entry-text)
 org-babel-pre-tangle-hook '(save-buffer)
 org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers
          org-cycle-show-empty-lines
          org-optimize-window-after-visibility-change)
 org-export-preprocess-before-normalizing-links-hook 
'(org-remove-file-link-modifiers)
 org-mode-hook '(#[nil "\300\301\302\303\304$\207"
           [org-add-hook change-major-mode-hook org-show-block-all
            append local]
           5]
         #[nil "\300\301\302\303\304$\207"
           [org-add-hook change-major-mode-hook
            org-babel-show-result-all append local]
           5]
         org-babel-result-hide-spec org-babel-hide-all-hashes)
 org-ctrl-c-ctrl-c-hook '(org-babel-hash-at-point
              org-babel-execute-safely-maybe)
 org-confirm-elisp-link-function 'yes-or-no-p
 org-export-interblocks '((src org-babel-exp-non-block-elements))
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 org-occur-hook '(org-first-headline-recenter)
 org-from-is-user-regexp "\\<Uffe Høgsbro Thygesen\\>"
 org-export-preprocess-before-selecting-backend-code-hook 
'(org-beamer-select-beamer-code)
 org-confirm-babel-evaluate nil
 org-export-latex-final-hook '(org-beamer-amend-header org-beamer-fix-toc
                   org-beamer-auto-fragile-frames
                   org-beamer-place-default-actions-for-lists)
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-export-blocks '((src org-babel-exp-src-block nil)
             (export-comment org-export-blocks-format-comment t)
             (ditaa org-export-blocks-format-ditaa nil)
             (dot org-export-blocks-format-dot nil))
 )