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-rw-r--r--lisp/emacs-lisp/cl.el9
1 files changed, 8 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/cl.el b/lisp/emacs-lisp/cl.el
index 1d2b82f82eb..d303dab4ad3 100644
--- a/lisp/emacs-lisp/cl.el
+++ b/lisp/emacs-lisp/cl.el
@@ -161,7 +161,14 @@ an element already on the list.
(if (symbolp place)
(if (null keys)
`(let ((x ,x))
- (if (memql x ,place) ,place (setq ,place (cons x ,place))))
+ (if (memql x ,place)
+ ;; This symbol may later on expand to actual code which then
+ ;; trigger warnings like "value unused" since pushnew's return
+ ;; value is rarely used. It should not matter that other
+ ;; warnings may be silenced, since `place' is used earlier and
+ ;; should have triggered them already.
+ (with-no-warnings ,place)
+ (setq ,place (cons x ,place))))
(list 'setq place (list* 'adjoin x place keys)))
(list* 'callf2 'adjoin x place keys)))