From 9a60b93d932393eda4a216d79bdcd04c44dd3a24 Mon Sep 17 00:00:00 2001
From: Nicolas Goaziou <n.goaziou@gmail.com>
Date: Fri, 16 May 2014 10:33:20 +0200
Subject: [PATCH] ox-latex: Fix export of inlinetasks with empty contents

* lisp/ox-latex.el (org-latex-inlinetask): Skip body if contents are
  empty.

Thanks to Michael Weylandt for reporting it and providing
a preliminary patch.
http://permalink.gmane.org/gmane.emacs.orgmode/86384
---
 lisp/ox-latex.el | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/lisp/ox-latex.el b/lisp/ox-latex.el
index 53cc54f00..2c0152b8c 100644
--- a/lisp/ox-latex.el
+++ b/lisp/ox-latex.el
@@ -1526,17 +1526,16 @@ holding contextual information."
 	       (when priority (format "\\framebox{\\#%c} " priority))
 	       title
 	       (when tags (format "\\hfill{}\\textsc{:%s:}"
-				  (mapconcat 'identity tags ":"))))))
-	 (format (concat "\\begin{center}\n"
-			 "\\fbox{\n"
-			 "\\begin{minipage}[c]{.6\\textwidth}\n"
-			 "%s\n\n"
-			 "\\rule[.8em]{\\textwidth}{2pt}\n\n"
-			 "%s"
-			 "\\end{minipage}\n"
-			 "}\n"
-			 "\\end{center}")
-		 full-title contents))))))
+				  (mapconcat #'identity tags ":"))))))
+	 (concat "\\begin{center}\n"
+		 "\\fbox{\n"
+		 "\\begin{minipage}[c]{.6\\textwidth}\n"
+		 full-title "\n\n"
+		 (and (org-string-nw-p contents)
+		      (concat "\\rule[.8em]{\\textwidth}{2pt}\n\n" contents))
+		 "\\end{minipage}\n"
+		 "}\n"
+		 "\\end{center}"))))))
 
 
 ;;;; Italic