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-rw-r--r--lisp/emacs-lisp/regexp-opt.el1
1 files changed, 1 insertions, 0 deletions
diff --git a/lisp/emacs-lisp/regexp-opt.el b/lisp/emacs-lisp/regexp-opt.el
index 9e95eeb8fc9..e46ad2ca3e5 100644
--- a/lisp/emacs-lisp/regexp-opt.el
+++ b/lisp/emacs-lisp/regexp-opt.el
@@ -101,6 +101,7 @@ by \\=\\< and \\>."
(save-match-data
;; Recurse on the sorted list.
(let* ((max-lisp-eval-depth (* 1024 1024))
+ (max-specpdl-size (* 1024 1024))
(completion-ignore-case nil)
(completion-regexp-list nil)
(words (eq paren 'words))