+Libmemif is now part of VPP repository. Follow fd.io wiki to pull source code from VPP repository.
+[https://wiki.fd.io/view/VPP/Pulling,_Building,_Running,_Hacking_and_Pushing_VPP_Code#Pushing_Patches](https://wiki.fd.io/view/VPP/Pulling,_Building,_Running,_Hacking_and_Pushing_VPP_Code#Pushing_Patches)