_pkgname="skypeforlinux" _userns="kernel.unprivileged_userns_clone" post_install() { userns="$(sysctl -n $_userns 2>/dev/null)" if [[ $? -ne 0 || $userns -ne 1 ]]; then echo -ne "\e[34;1m" echo === echo === !!! WARNING !!! echo === echo === $_userns is not set on this system. echo === You will need to set it manually so $_pkgname can start. echo === fi } post_upgrade() { post_install }