From cd78c87b27571d309aa1e7abf4c182520120243a Mon Sep 17 00:00:00 2001
From: Simon Leary <simon.leary42@proton.me>
Date: Tue, 1 Oct 2024 16:11:08 -0400
Subject: [PATCH] makefile warn undefined variables

---
 Makefile.in | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Makefile.in b/Makefile.in
index f18c9c92e..327802cae 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -1,3 +1,5 @@
+MAKEFLAGS += --warn-undefined-variables
+
 srcdir                    := @srcdir@
 prefix                    := @prefix@
 SYS_LUA_PATH              := @SYS_LUA_PATH@