| | figure out the right one for supported systems. |
+--------------------+-------------------------------------------------+
| ``CC_LD`` | The C linker to use. |
-+----------------------------------------------------------------------+
++--------------------+-------------------------------------------------+
| ``CFLAGS`` | The C compiler flags. Defaults to an empty |
| | string. |
+--------------------+-------------------------------------------------+
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, adjust ``PKG_CONFIG_PATH`` or use the option
-``--pkg-config-path``.
+``--pkg-config-path``. Compression can be switched off with
+``-Dzlib=disabled``.
To support storing configuration data for runtime-added zones in an LMDB
database, the server must be linked with ``liblmdb``
To support internationalized domain names in :iscman:`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``.
+library is installed in a nonstandard location, adjust ``PKG_CONFIG_PATH`` or
+use the option ``--pkg-config-path``. IDN support can be switched off with
+``-Didn=disabled``.
-<<<<<<< HEAD
For line editing in :iscman:`nsupdate` and :iscman:`nslookup`,
the ``libedit`` library (https://www.thrysoee.dk/editline/) must be
installed. If these are installed at a nonstandard location, adjust