From 40a5ac9480a16214f8a4cbed4e435e2834c40644 Mon Sep 17 00:00:00 2001
From: Konstantin Kharlamov <Hi-Angel@yandex.ru>
Date: Tue, 20 Feb 2024 21:34:49 +0300
Subject: [PATCH] Makefile: suppress warning for undo-redo being undefined

It is part of the newer Emacs, but on the older ones it causes
warnings. There's no tests of that functionality, so just suppress the
warning.
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 2144a921..755845a0 100644
--- a/Makefile
+++ b/Makefile
@@ -26,7 +26,7 @@ compile: $(ELCFILES)
 -include .depend
 
 $(ELCFILES): %.elc: %.el
-	$(EMACS) --batch -Q -L . -f batch-byte-compile $<
+	$(EMACS) --batch -Q -L . --eval "(declare-function undo-redo nil)" -f batch-byte-compile $<
 
 # Byte-compile all files in one batch. This is faster than
 # compiling each file in isolation, but also less stringent.