--- include/zck.h.in.orig 2018-08-03 07:08:45.140103751 +0200
+++ include/zck.h.in 2018-08-03 07:09:18.613105487 +0200
@@ -1,3 +1,4 @@
+#include <sys/types.h>
#ifndef ZCK_H
#define ZCK_H