diff -ruN drbd-utils-8.9.6.orig/user/shared/shared_tool.c drbd-utils-8.9.6/user/shared/shared_tool.c
--- drbd-utils-8.9.6.orig/user/shared/shared_tool.c	2018-05-04 20:13:51.959412972 +0200
+++ drbd-utils-8.9.6/user/shared/shared_tool.c	2018-05-04 20:14:12.979679788 +0200
@@ -8,6 +8,7 @@
 #define _FILE_OFFSET_BITS 64
 
 #include <sys/types.h>
+#include <sys/sysmacros.h>
 #include <sys/stat.h>
 #include <sys/ioctl.h>
 #include <fcntl.h>
diff -ruN drbd-utils-8.9.6.orig/user/v83/drbdadm_adjust.c drbd-utils-8.9.6/user/v83/drbdadm_adjust.c
--- drbd-utils-8.9.6.orig/user/v83/drbdadm_adjust.c	2015-02-11 17:33:00.000000000 +0100
+++ drbd-utils-8.9.6/user/v83/drbdadm_adjust.c	2018-05-04 20:15:08.060378940 +0200
@@ -25,6 +25,7 @@
 #define _GNU_SOURCE
 
 #include <sys/types.h>
+#include <sys/sysmacros.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
 #include <unistd.h>
diff -ruN drbd-utils-8.9.6.orig/user/v84/drbdadm_adjust.c drbd-utils-8.9.6/user/v84/drbdadm_adjust.c
--- drbd-utils-8.9.6.orig/user/v84/drbdadm_adjust.c	2015-05-08 15:16:31.000000000 +0200
+++ drbd-utils-8.9.6/user/v84/drbdadm_adjust.c	2018-05-04 20:14:42.192050588 +0200
@@ -27,6 +27,7 @@
 #define _FILE_OFFSET_BITS 64
 
 #include <sys/types.h>
+#include <sys/sysmacros.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
 #include <unistd.h>
diff -ruN drbd-utils-8.9.6.orig/user/v9/drbdadm_adjust.c drbd-utils-8.9.6/user/v9/drbdadm_adjust.c
--- drbd-utils-8.9.6.orig/user/v9/drbdadm_adjust.c	2018-05-04 20:13:51.960412985 +0200
+++ drbd-utils-8.9.6/user/v9/drbdadm_adjust.c	2018-05-04 20:14:12.980679801 +0200
@@ -27,6 +27,7 @@
 #define _FILE_OFFSET_BITS 64
 
 #include <sys/types.h>
+#include <sys/sysmacros.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
 #include <unistd.h>