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-rw-r--r--lisp/emacs-lisp/rx.el2
1 files changed, 2 insertions, 0 deletions
diff --git a/lisp/emacs-lisp/rx.el b/lisp/emacs-lisp/rx.el
index 30bb129e8f2..85e74f28ef0 100644
--- a/lisp/emacs-lisp/rx.el
+++ b/lisp/emacs-lisp/rx.el
@@ -106,6 +106,8 @@
;;; Code:
+(require 'cl-lib)
+
;; FIXME: support macros.
(defvar rx-constituents ;Not `const' because some modes extend it.