File missing_sysmacros.patch of Package xfce4-panel-plugin-diskperf

diff -rub xfce4-diskperf-plugin-2.6.1/panel-plugin/devperf.c xfce4-diskperf-plugin-2.6.1-patched/panel-plugin/devperf.c
--- xfce4-diskperf-plugin-2.6.1/panel-plugin/devperf.c	2017-02-25 17:57:00.000000000 +0800
+++ xfce4-diskperf-plugin-2.6.1-patched/panel-plugin/devperf.c	2019-02-18 00:33:06.963847369 +0800
@@ -35,6 +35,7 @@
 #include <sys/time.h>
 /* for major() and minor() */
 #define _BSD_SOURCE
+#include <sys/sysmacros.h>
 #include <sys/types.h>