include stddef.h to make sure we get NULL

diff --git a/lib/util/memset_s.c b/lib/util/memset_s.c
index 2fea12db2ed7402fe96cbcad62513d0930fb2523..3a3a8051687ce64018bef3c9bebfab6c8be8cd43 100644 (file)
--- a/lib/util/memset_s.c
+++ b/lib/util/memset_s.c
@@ -22,6 +22,7 @@
 #include <config.h>
 
 #include <sys/types.h>
+#include <stddef.h>
 #include <errno.h>
 #include <limits.h>
 #if defined(HAVE_STDINT_H)