diff -ruN Unix-Mknod-0.04.orig/Mknod.xs Unix-Mknod-0.04/Mknod.xs
--- Unix-Mknod-0.04.orig/Mknod.xs	2005-07-08 21:04:23.000000000 +0200
+++ Unix-Mknod-0.04/Mknod.xs	2019-10-17 06:06:22.073130897 +0200
@@ -10,6 +10,8 @@
 
 #ifdef HAS_SYSMKDEV
 #include <sys/mkdev.h>
+#else
+#include <sys/sysmacros.h>
 #endif
 
 #ifdef __cplusplus