From b66858acbbd776b98cba72a7f2a4de53c71f8045 Mon Sep 17 00:00:00 2001
From: Carsten Dominik <carsten.dominik@gmail.com>
Date: Mon, 1 Feb 2010 17:15:54 +0100
Subject: [PATCH] LaTeX export: Define the align macro

---
 lisp/ChangeLog    | 3 +++
 lisp/org-latex.el | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index a48f49b96..c5621a3e2 100755
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,8 @@
 2010-02-01  Carsten Dominik  <carsten.dominik@gmail.com>
 
+	* org-latex.el (org-export-latex-make-header): Define the align
+	macro if it is not yet defined.
+
 	* org-agenda.el (org-agenda-insert-diary-make-new-entry): Call
 	`org-insert-heading' with the INVISIBLE-OK argument.
 
diff --git a/lisp/org-latex.el b/lisp/org-latex.el
index 4a4947c3c..8866ed760 100644
--- a/lisp/org-latex.el
+++ b/lisp/org-latex.el
@@ -1146,6 +1146,8 @@ OPT-PLIST is the options plist for current buffer."
      (org-export-apply-macros-in-string
       (plist-get opt-plist :latex-header-extra))
      (org-export-apply-macros-in-string org-export-latex-append-header)
+     ;; define align if not yet defined
+     "\\ifx\\alert\\undefined\\let\\alert\\textbf\\fi"
      ;; insert the title
      (format
       "\n\n\\title{%s}\n"