cus-dep fix for build failure first occurring with 2011-06-13T08:21:09Z!rudalics@gmx.at

The symptom was `make custom-dep' failing with "Unknown terminal type".
This is caused by `display-buffer' trying to pop-up a frame in batch mode.
I think this cus-dep change may be just papering over the immediate
manifestation of the underlying problem.

* lisp/cus-dep.el (custom-make-dependencies): Use up command-line-args-left.

lisp/ChangeLog

+2011-06-13  Glenn Morris  <rgm@gnu.org>
+
+	* cus-dep.el (custom-make-dependencies): Use up command-line-args-left.
+
 2011-06-13  Martin Rudalics  <rudalics@gmx.at>
 
 	* help.el (help-window): Remove variable.

lisp/cus-dep.el

@@ -42,9 +42,12 @@ ldefs-boot\\|cus-load\\|finder-inf\\|esh-groups\\|subdirs\\)\\.el$\\)"
 (defun custom-make-dependencies ()
   "Batch function to extract custom dependencies from .el files.
 Usage: emacs -batch -l ./cus-dep.el -f custom-make-dependencies DIRS"
-  (let ((enable-local-eval nil))
+  (let ((enable-local-eval nil)
+	subdir)
     (with-temp-buffer
-      (dolist (subdir command-line-args-left)
+      ;; Use up command-line-args-left else Emacs can try to open
+      ;; the args as directories after we are done.
+      (while (setq subdir (pop command-line-args-left))
         (message "Directory %s" subdir)
         (let ((files (directory-files subdir nil "\\`[^=].*\\.el\\'"))
               (default-directory (expand-file-name subdir))