From 3bce72af2dc1679d29718976ecf89f318c72370c Mon Sep 17 00:00:00 2001
From: Karl Fessel <karl.fessel@ovgu.de>
Date: Wed, 26 Jan 2022 16:14:10 +0100
Subject: [PATCH] sys/utlist: include stddef.h

---
 sys/include/utlist.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/include/utlist.h b/sys/include/utlist.h
index 66b7f165db..b334aa68a0 100644
--- a/sys/include/utlist.h
+++ b/sys/include/utlist.h
@@ -39,6 +39,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 /** @brief Version number */
 #define UTLIST_VERSION 1.9.9
+#include <stddef.h>
 
 #include <assert.h>