-DEB_DEPENDS += lcov chrpath autoconf indent clang-format libnuma-dev
-DEB_DEPENDS += python-all python3-all python3-setuptools python-dev
-DEB_DEPENDS += python-virtualenv python-pip libffi6 check
-DEB_DEPENDS += libboost-all-dev libffi-dev python3-ply libmbedtls-dev
-DEB_DEPENDS += cmake ninja-build uuid-dev python3-jsonschema
-ifeq ($(OS_VERSION_ID),14.04)
+DEB_DEPENDS += lcov chrpath autoconf libnuma-dev
+DEB_DEPENDS += python3-all python3-setuptools check
+DEB_DEPENDS += libffi-dev python3-ply
+DEB_DEPENDS += cmake ninja-build uuid-dev python3-jsonschema python3-yaml
+DEB_DEPENDS += python3-venv # ensurepip
+DEB_DEPENDS += python3-dev # needed for python3 -m pip install psutil
+DEB_DEPENDS += libnl-3-dev libnl-route-3-dev libmnl-dev
+# DEB_DEPENDS += enchant # for docs
+DEB_DEPENDS += python3-virtualenv
+DEB_DEPENDS += libssl-dev
+DEB_DEPENDS += libelf-dev # for libbpf (af_xdp)
+DEB_DEPENDS += iperf3 # for 'make test TEST=vcl'
+
+LIBFFI=libffi6 # works on all but 20.04 and debian-testing
+
+ifeq ($(OS_VERSION_ID),20.04)
+ DEB_DEPENDS += python3-virtualenv