-make UNATTENDED=yes -C build-root TAG=vpp_clang CC=clang CXX=clang install-packages
-make UNATTENDED=yes -C build-root TAG=vpp_clang CC=clang CXX=clang sample-plugin-install
-make UNATTENDED=yes -C build-root TAG=vpp_clang CC=clang CXX=clang libmemif-install
+make UNATTENDED=yes -C build-root PLATFORM=vpp TAG=vpp_clang CC=clang CXX=clang install-packages
+make UNATTENDED=yes -C build-root PLATFORM=vpp TAG=vpp_clang CC=clang CXX=clang sample-plugin-install
+make UNATTENDED=yes -C build-root PLATFORM=vpp TAG=vpp_clang CC=clang CXX=clang libmemif-install