From: "naveenkumar.nagaraj" <naveenkumar.nagaraj@timesys.com>
Subject: AF_VSOCK PF_VSOCK 

diff --git a/sysutils.h b/sysutils.h
index c680873..4d06108 100644
--- a/sysutils.h
+++ b/sysutils.h
@@ -5,6 +5,14 @@
 #ifndef __sysutils_h_included
 #define __sysutils_h_included 1
 
+#ifndef AF_VSOCK
+#define AF_VSOCK      40      /* vSockets                     */
+#endif
+ 
+#ifndef PF_VSOCK
+#define PF_VSOCK      AF_VSOCK
+#endif
+
 #if WITH_IP6
 /* not all OSes provide in6_addr that allows splitting to 16 or 32 bit junks of
    the host address part of sockaddr_in6; here we help ourselves */
-- 
2.25.1