From 4ba769d4a31435f71f39ef3cc66d1221ab11c7f2 Mon Sep 17 00:00:00 2001
From: Peter Barker <pbarker@barker.dropbear.id.au>
Date: Thu, 21 Jan 2016 11:55:03 +1100
Subject: [PATCH] mk: native boards get -Wundef

---
 mk/board_native.mk | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mk/board_native.mk b/mk/board_native.mk
index 944a9586a5..2c3c118425 100644
--- a/mk/board_native.mk
+++ b/mk/board_native.mk
@@ -19,7 +19,9 @@ WARNFLAGSCXX    = \
         -Werror=unused-but-set-variable \
         -Werror=uninitialized \
         -Werror=init-self \
-        -Wfatal-errors
+        -Wfatal-errors \
+        -Wundef
+
 DEPFLAGS        =   -MD -MP -MT $@
 
 CXXOPTS         =   -ffunction-sections -fdata-sections -fno-exceptions -fsigned-char