INFO: setup
Package:    net-misc/dhcpcd-10.0.6-r2:0
Repository: gentoo
USE:        embedded abi_x86_64 amd64 ipv6 elibc_glibc udev kernel_linux
FEATURES:   preserve-libs sandbox userpriv usersandbox
LOG: postinst

If you activate the lookup-hostname hook to look up your hostname
using the dns, you need to install net-dns/bind-tools.