Hello Frabice: You may pass additional configuration parameters through to the BIND build like this: ./configure --with-bind-extra-config="--without-zlib --without-dlopen" Note that you must enclose it with quotes for more than one value. Please note that we have migrated ISC DHCP to gitlab here: https://gitlab.isc.org/isc-projects/dhcp Please submit any future issues in the gitlab project. You may also use that now to submit patches via merge requests. Our RT bug system will be going read-only at some point. You marked the ticket confidential. Do you mind if we make it public? Regards, Thomas Markwalder ISC Software Engineering