completions are available in the contrib subfolder see https://projects.archlinux.org/netctl.git/tree/contrib you might also bump to version 1.1 Reproducible: Always
Thanks for the report. +*netctl-1.1 (25 May 2013) + + 25 May 2013; Mike Gilbert <floppym@gentoo.org> +netctl-1.1.ebuild, + netctl-9999.ebuild: + Version bump. Install bash and zsh completion code, bug 471234 by poncho.