1OPTIONS 2 3Setting the STD_CDEFINES environment variable before running configure can 4be used to enable certain compile-time options that are not explicitly 5defined in configure. 6 7Some of these settings are: 8 9 Setting Description 10 Overwrite memory with tag values when allocating 11-DISC_MEM_DEFAULTFILL=1 or freeing it; this impairs performance but 12 makes debugging of memory problems easier. 13 Don't track memory allocations by file and line 14-DISC_MEM_TRACKLINES=0 number; this improves performance but makes 15 debugging more difficult. 16-DISC_FACILITY=LOG_LOCAL0 Change the default syslog facility for named 17-DNS_CLIENT_DROPPORT=0 Disable dropping queries from particular 18 well-known ports: 19-DCHECK_SIBLING=0 Don't check sibling glue in named-checkzone 20-DCHECK_LOCAL=0 Don't check out-of-zone addresses in 21 named-checkzone 22-DNS_RUN_PID_DIR=0 Create default PID files in ${localstatedir}/run 23 rather than ${localstatedir}/run/named/ 24 Disable the use of inline functions to implement 25-DISC_BUFFER_USEINLINE=0 the isc_buffer API: this reduces performance but 26 may be useful when debugging 27-DISC_HEAP_CHECK Test heap consistency after every heap 28 operation; used when debugging 29