Needed libraries are missing from the automatically set-up chroot environment for dhcpd. This leads to an inability of a chrooted dhcpd to resolve hostnames. This breaks configurations where hostnames are used in the dhcpd.conf, rather than IP addresses.
Steps to Reproduce:
1. emerge dhcp
2. edit /etc/conf.d/dhcpd and uncomment DHCPD_CHROOT
3. emerge --config dhcp
4. use hostnames/FQDNs in dhcpd.conf
dhcpd is unable to resolve hostnames - router and nameserver IPs are not given to clients, fixed-addr matching is broken if hostnames are used.
it's not really possible to calculate all the libs that will be needed considering glibc allows for multiplexed behavior with nsswitch.conf ...