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-rw-r--r--lisp/emacs-lisp/eieio-opt.el5
1 files changed, 4 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/eieio-opt.el b/lisp/emacs-lisp/eieio-opt.el
index dbec48d038b..eeb0bc95d68 100644
--- a/lisp/emacs-lisp/eieio-opt.el
+++ b/lisp/emacs-lisp/eieio-opt.el
@@ -142,7 +142,10 @@ are not abstract."
(find-lisp-object-file-name ctr def)))
(when location
(insert (substitute-command-keys " in `"))
- (help-insert-xref-button
+ ;; The `cl-type-definition' button type can't be autoloaded
+ ;; due to circularity during bootstrap (Bug#28899).
+ (require 'cl-extra)
+ (help-insert-xref-button
(help-fns-short-filename location)
'cl-type-definition ctr location 'define-type)
(insert (substitute-command-keys "'")))