--- a/iucode_tool.c	2017-08-28 02:20:36.000000000 +0200
+++ b/iucode_tool.c	2017-12-22 18:11:59.195710726 +0100
@@ -19,6 +19,7 @@
 #include <stdint.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <limits.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>