From cde58fd20a6e0a3f83ad3dafde2a0e89994c6e29 Mon Sep 17 00:00:00 2001
From: Pekka Paalanen <pekka.paalanen@collabora.com>
Date: Wed, 3 Mar 2021 14:01:40 +0200
Subject: [PATCH] build: add -Wundef

There is no case in pre-processor directives where would like to have
undefined identifiers be silently replaced with a zero. This warning can
discover typos and forgotten includes.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
---
 meson.build | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meson.build b/meson.build
index 5a2db937..44efeaee 100644
--- a/meson.build
+++ b/meson.build
@@ -63,6 +63,7 @@ global_args_maybe = [
 	'-Wno-shift-negative-value', # required due to Pixman
 	'-Wno-missing-field-initializers',
 	'-Wno-pedantic',
+	'-Wundef',
 	'-fvisibility=hidden',
 ]
 foreach a : global_args_maybe