Index: libsearpc-3.3.0.20220902/demo/searpc-demo-packet.h
===================================================================
--- libsearpc-3.3.0.20220902.orig/demo/searpc-demo-packet.h
+++ libsearpc-3.3.0.20220902/demo/searpc-demo-packet.h
@@ -5,6 +5,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <errno.h>
+#include <unistd.h>
 
 #ifdef WIN32
     #include <windows.h>