From b6eccad06c89eea878c1464571255fe8ce5c6d86 Mon Sep 17 00:00:00 2001 From: Stefan Monnier Date: Fri, 19 Feb 2021 12:51:36 -0500 Subject: [PATCH] * lisp/emacs-lisp/bytecomp.el: Don't warn for repeated _ args (byte-compile-check-lambda-list): Skip warnings of repeated arg for those that are declared as unused anyway. --- lisp/emacs-lisp/bytecomp.el | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el index 9d80afd774f..1b0906b50bb 100644 --- a/lisp/emacs-lisp/bytecomp.el +++ b/lisp/emacs-lisp/bytecomp.el @@ -2859,7 +2859,9 @@ If FORM is a lambda or a macro, byte-compile it as a function." ((eq arg '&optional) (when (memq '&optional (cdr list)) (error "Duplicate &optional"))) - ((memq arg vars) + ((and (memq arg vars) + ;; Allow repetitions for unused args. + (not (string-match "\\`_" (symbol-name arg)))) (byte-compile-warn "repeated variable %s in lambda-list" arg)) (t (push arg vars)))) -- 2.39.2