diff -Naur orig/src/sg_map26.c new/src/sg_map26.c
--- orig/src/sg_map26.c	2019-08-30 10:46:43.052976936 +0000
+++ new/src/sg_map26.c	2019-08-30 10:49:51.012971872 +0000
@@ -35,6 +35,8 @@
 #include <sys/stat.h>
 #include <linux/major.h>
 
+#include <sys/sysmacros.h>
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif