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- The STD_CDEFINES build-time variable was dropped when the build
    system was migrated to Automake.  CPPFLAGS is the variable which
    should now be used for setting preprocessor macros.

  - Sort the list of preprocessor macros which affect BIND behavior.
    Remove ISC_BUFFER_USEINLINE from the list as it can be controlled
    using its relevant ./configure option (--enable-buffer-useinline).
    Rename NS_RUN_PID_DIR to NAMED_RUN_PID_DIR to match the source code.

  - Tweak Markdown formatting.
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Michal Nowak 2020-11-19 10:35:57 +01:00
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OPTIONS.md
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@ -8,20 +8,19 @@
- See the COPYRIGHT file distributed with this work for additional
- information regarding copyright ownership.
-->
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`.
Setting the `CPPFLAGS` 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 |
|-----------------------------------|----------------------------------------|
|`-DISC_MEM_DEFAULTFILL=1`|Overwrite memory with tag values when allocating or freeing it; this impairs performance but makes debugging of memory problems easier.|
|`-DISC_MEM_TRACKLINES=0`|Don't track memory allocations by file and line number; this improves performance but makes debugging more difficult.|
|<nobr>`-DISC_FACILITY=LOG_LOCAL0`</nobr>|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/`|
|`-DISC_BUFFER_USEINLINE=0`|Disable the use of inline functions to implement the `isc_buffer` API: this reduces performance but may be useful when debugging |
|`-DISC_HEAP_CHECK`|Test heap consistency after every heap operation; used when debugging|
| Setting | Description |
| ---------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| `-DCHECK_LOCAL=0` | Don't check out-of-zone addresses in `named-checkzone` |
| `-DCHECK_SIBLING=0` | Don't check sibling glue in `named-checkzone` |
| `-DISC_FACILITY=LOG_LOCAL0` | Change the default syslog facility for `named` |
| `-DISC_HEAP_CHECK` | Test heap consistency after every heap operation; used when debugging |
| `-DISC_MEM_DEFAULTFILL=1` | Overwrite memory with tag values when allocating or freeing it; this impairs performance but makes debugging of memory problems easier |
| `-DISC_MEM_TRACKLINES=0` | Don't track memory allocations by file and line number; this improves performance but makes debugging more difficult |
| `-DNAMED_RUN_PID_DIR=0` | Create default PID files in `${localstatedir}/run` rather than `${localstatedir}/run/named/` |
| `-DNS_CLIENT_DROPPORT=0` | Disable dropping queries from particular well-known ports |