Looks like berkdb is default-enabled and dlz isn't, so: # emerge -av bind * IMPORTANT: 18 news items need reading for repository 'gentoo'. * Use eselect news read to view new items. These are the packages that would be merged, in order: Calculating dependencies / !!! Problem resolving dependencies for net-dns/bind ... done! !!! The ebuild selected to satisfy "bind" has unmet requirements. - net-dns/bind-9.11.0_p3::gentoo USE="berkdb caps ipv6 python ssl threads xml zlib -dlz -dnstap -doc -filter-aaaa -fixed-rrset -geoip -gost -gssapi -idn -json -ldap -libressl -lmdb -mysql -nslint -odbc -postgres -rpz (-seccomp) (-selinux) -static-libs -urandom" ABI_X86="64" PYTHON_TARGETS="python2_7 python3_4" The following REQUIRED_USE flag constraints are unsatisfied: berkdb? ( dlz ) The above constraints are a subset of the following complete expression: postgres? ( dlz ) berkdb? ( dlz ) mysql? ( dlz !threads ) odbc? ( dlz ) ldap? ( dlz ) gost? ( !libressl ssl ) threads? ( caps ) dnstap? ( threads )
Indeed, that was long overdue, fixed now.