(custom-save-all): Error if saving in .emacs and it had an error when loaded.

1 files changed, 2 insertions, 0 deletions

diff --git a/lisp/cus-edit.el b/lisp/cus-edit.el
index 00f76b31520..c70284f4455 100644
--- a/lisp/cus-edit.el
+++ b/lisp/cus-edit.el
@@ -4149,6 +4149,8 @@ if only the first line of the docstring is shown."))
 ;;;###autoload
 (defun custom-save-all ()
   "Save all customizations in `custom-file'."
+  (when (and (null custom-file) init-file-had-error)
+    (error "Cannot save customizations; init file was not fully loaded"))
   (let* ((filename (custom-file))
          (recentf-exclude (if recentf-mode
                               (cons (concat "\\`"