* lisp/org-compat.el: Make sure that file-name-directory is getting a
stringp. This avoids a possible "(wrong-type-argument stringp nil)"
error when the library in question does not exist.
@@ -327,7 +327,7 @@ Works on both Emacs and XEmacs."
(apply 'propertize string properties)))
(defmacro org-find-library-dir (library)
- `(file-name-directory (locate-library ,library)))
+ `(file-name-directory (or (locate-library ,library) "")))
(defun org-count-lines (s)
"How many lines in string S?"