Sync Org 7.9.2 from the commit tagged "release_7.9.2" in Org's Git repo.

[gnu-emacs] / lisp / org / ob-dot.el

diff --git a/lisp/org/ob-dot.el b/lisp/org/ob-dot.el
index 1d4b7da7e18691eac2cd25962f5605f1eba12730..99748b0a95bc19897a6f33ed349fdb2d304d4fcd 100644 (file)
--- a/lisp/org/ob-dot.el
+++ b/lisp/org/ob-dot.el
@@ -64,7 +64,8 @@
   "Execute a block of Dot code with org-babel.
 This function is called by `org-babel-execute-src-block'."
   (let* ((result-params (cdr (assoc :result-params params)))
-        (out-file (cdr (assoc :file params)))
+        (out-file (cdr (or (assoc :file params)
+                           (error "You need to specify a :file parameter"))))
         (cmdline (or (cdr (assoc :cmdline params))
                      (format "-T%s" (file-name-extension out-file))))
         (cmd (or (cdr (assoc :cmd params)) "dot"))