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.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
..
.. SPDX-License-Identifier: MPL-2.0
..
.. This Source Code Form is subject to the terms of the Mozilla Public
.. License, v. 2.0. If a copy of the MPL was not distributed with this
.. file, you can obtain one at https://mozilla.org/MPL/2.0/.
..
.. See the COPYRIGHT file distributed with this work for additional
.. information regarding copyright ownership.
Building BIND 9
---------------
To build on a Unix or Linux system, use:
::
$ ./configure
$ make
Several environment variables affect compilation, and they can be set
before running ``configure``. The most significant ones are:
+--------------------+-------------------------------------------------+
| Variable | Description |
+====================+=================================================+
| ``CC`` | The C compiler to use. ``configure`` tries to |
| | figure out the right one for supported systems. |
+--------------------+-------------------------------------------------+
| ``CFLAGS`` | The C compiler flags. Defaults to include -g |
| | and/or -O2 as supported by the compiler. Please |
| | include ``-g`` if ``CFLAGS`` needs to be set. |
+--------------------+-------------------------------------------------+
| ``STD_CINCLUDES`` | System header file directories. Can be used to |
| | specify where add-on thread or IPv6 support is, |
| | for example. Defaults to empty string. |
+--------------------+-------------------------------------------------+
| ``STD_CDEFINES`` | Any additional preprocessor symbols you want |
| | defined. Defaults to empty string. For a list |
| | of possible settings, see the file |
| | `OPTIONS <OPTIONS.md>`__. |
+--------------------+-------------------------------------------------+
| ``LDFLAGS`` | The linker flags. Defaults to an empty string. |
+--------------------+-------------------------------------------------+
| ``BUILD_CC`` | Needed when cross-compiling: the native C |
| | compiler to use when building for the target |
| | system. |
+--------------------+-------------------------------------------------+
| ``BUILD_CFLAGS`` | ``CFLAGS`` for the target system during |
| | cross-compiling. |
+--------------------+-------------------------------------------------+
| ``BUILD_CPPFLAGS`` | ``CPPFLAGS`` for the target system during |
| | cross-compiling. |
+--------------------+-------------------------------------------------+
| ``BUILD_LDFLAGS`` | ``LDFLAGS`` for the target system during |
| | cross-compiling. |
+--------------------+-------------------------------------------------+
| ``BUILD_LIBS`` | ``LIBS`` for the target system during |
| | cross-compiling. |
+--------------------+-------------------------------------------------+
Additional environment variables affecting the build are listed at the
end of the ``configure`` help text, which can be obtained by running the
command:
::
$ ./configure --help
If you’re planning on making changes to the BIND 9 source, you should
run ``make depend``. If you’re using Emacs, you might find ``make tags`` helpful.
.. _build_dependencies:
Required Libraries
~~~~~~~~~~~~~~~~~~
To build BIND 9, the following packages must be installed:
- ``libcrypto``, ``libssl``
- ``libuv``
- ``perl``
- ``pkg-config`` / ``pkgconfig`` / ``pkgconf``
BIND 9.16 requires ``libuv`` 1.0.0 or higher, using ``libuv`` >= 1.40.0
is recommended. Compiling or running with ``libuv`` 1.35.0 or 1.36.0 is
not supported, as this could lead to an assertion failure in the UDP
receive code. On older systems, an updated ``libuv`` package needs to be
installed from sources such as EPEL, PPA, or other native sources. The
other option is to build and install ``libuv`` from source.
OpenSSL 1.0.2e or newer is required. If the OpenSSL library is installed
in a nonstandard location, specify the prefix using
``--with-openssl=<PREFIX>`` on the ``configure`` command line.
Portions of BIND that are written in Python, including
``dnssec-keymgr``, ``dnssec-coverage``, ``dnssec-checkds``, and some of
the system tests, require the ``argparse``, ``ply`` and
``distutils.core`` modules to be available. ``argparse`` is a standard
module as of Python 2.7 and Python 3.2. ``ply`` is available from
https://pypi.python.org/pypi/ply. ``distutils.core`` is required for
installation.
Optional Features
~~~~~~~~~~~~~~~~~
To see a full list of configuration options, run ``configure --help``.
To build shared libraries, specify ``--with-libtool`` on the
``configure`` command line.
To support the HTTP statistics channel, the server must be linked with
at least one of the following libraries: ``libxml2``
(http://xmlsoft.org) or ``json-c`` (https://github.com/json-c/json-c).
If these are installed at a nonstandard location, then:
- for ``libxml2``, specify the prefix using ``--with-libxml2=/prefix``,
- for ``json-c``, adjust ``PKG_CONFIG_PATH``.
To support compression on the HTTP statistics channel, the server must
be linked against ``zlib`` (https://zlib.net/). If this is installed in
a nonstandard location, specify the prefix using
``--with-zlib=/prefix``.
To support storing configuration data for runtime-added zones in an LMDB
database, the server must be linked with ``liblmdb``
(https://github.com/LMDB/lmdb). If this is installed in a nonstandard
location, specify the prefix using ``--with-lmdb=/prefix``.
To support MaxMind GeoIP2 location-based ACLs, the server must be linked
with ``libmaxminddb`` (https://maxmind.github.io/libmaxminddb/). This is
turned on by default if the library is found; if the library is
installed in a nonstandard location, specify the prefix using
``--with-maxminddb=/prefix``. GeoIP2 support can be switched off with
``--disable-geoip``.
For DNSTAP packet logging, ``libfstrm``
(https://github.com/farsightsec/fstrm) and ``libprotobuf-c``
(https://developers.google.com/protocol-buffers) must be installed, and
BIND must be configured with ``--enable-dnstap``.
To support internationalized domain names in ``dig``, ``libidn2``
(https://www.gnu.org/software/libidn/#libidn2) must be installed. If the
library is installed in a nonstandard location, specify the prefix using
``--with-libidn2=/prefix`` or adjust ``PKG_CONFIG_PATH``.
For line editing in ``nsupdate`` and ``nslookup``, either the
``readline`` (https://tiswww.case.edu/php/chet/readline/rltop.html) or
the ``libedit`` library (https://www.thrysoee.dk/editline/) must be
installed. If these are installed at a nonstandard location, adjust
``PKG_CONFIG_PATH``. ``readline`` is used by default, and ``libedit``
can be explicitly requested using ``--with-readline=libedit``.
Certain compiled-in constants and default settings can be decreased to
values better suited to small machines, e.g. OpenWRT boxes, by
specifying ``--with-tuning=small`` on the ``configure`` command line.
This decreases memory usage by using smaller structures, but degrades
performance.
On Linux, process capabilities are managed in user space using the
``libcap`` library
(https://git.kernel.org/pub/scm/libs/libcap/libcap.git/), which can be
installed on most Linux systems via the ``libcap-dev`` or
``libcap-devel`` package. Process capability support can also be
disabled by configuring with ``--disable-linux-caps``.
On some platforms it is necessary to explicitly request large file
support to handle files bigger than 2GB. This can be done by using
``--enable-largefile`` on the ``configure`` command line.
Support for the “fixed” RRset-order option can be enabled or disabled by
specifying ``--enable-fixed-rrset`` or ``--disable-fixed-rrset`` on the
``configure`` command line. By default, fixed RRset-order is disabled to
reduce memory footprint.
The ``--enable-querytrace`` option causes ``named`` to log every step
while processing every query. This option should only be enabled when
debugging because is has a significant negative impact on query
performance.
``make install`` installs ``named`` and the various BIND 9 libraries. By
default, installation is into /usr/local, but this can be changed with
the ``--prefix`` option when running ``configure``.
The option ``--sysconfdir`` can be specified to set the directory where
configuration files such as ``named.conf`` go by default;
``--localstatedir`` can be used to set the default parent directory of
``run/named.pid``. ``--sysconfdir`` defaults to ``$prefix/etc`` and
``--localstatedir`` defaults to ``$prefix/var``.
macOS
~~~~~
Building on macOS assumes that the “Command Tools for Xcode” are
installed. These can be downloaded from
https://developer.apple.com/download/more/ or, if Xcode is already
installed, simply run ``xcode-select --install``. (Note that an Apple ID
may be required to access the download page.)
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