OPTIONS

Setting the STD_CDEFINES environment variable before running configure can

be used to enable certain compile-time options that are not explicitly

defined in configure.

Some of these settings are:

         Setting                            Description

                          Don't ovewrite memory when allocating or freeing

-DISC_MEM_FILL=0          it; this improves performance but makes

                          debugging more difficult.

                          Don't track memory allocations by file and line

-DISC_MEM_TRACKLINES=0    number; this improves performance but makes

                          debugging more difficult.

-DISC_FACILITY=LOG_LOCAL0 Change the default syslog facility for named

-DNS_CLIENT_DROPPORT=0    Disable dropping queries from particular

                          well-known ports:

-DCHECK_SIBLING=0         Don't check sibling glue in named-checkzone

-DCHECK_LOCAL=0           Don't check out-of-zone addresses in

                          named-checkzone

-DNS_RUN_PID_DIR=0        Create default PID files in ${localstatedir}/run

                          rather than ${localstatedir}/run/{named,lwresd}/

                          Enable DNSSEC signature chasing support in dig.

-DDIG_SIGCHASE=1          (Note: This feature is deprecated. Use delv

                          instead.)

                          Increase the maximum number of configurable

-DNS_RPZ_MAX_ZONES=64     response policy zones from 32 to 64; this is the

                          highest possible setting

-DISC_HEAP_CHECK          Test heap consistency after every heap

                          operation; used when debugging

                          Disable the use of inline functions to implement

-DISC_BUFFER_USEINLINE=0  the isc_buffer API: this reduces performance but

                          may be useful when debugging