`configure' configures syslog-ng 4.4.0 to adapt to many kinds of systems.

Usage: src/syslog-ng-4.4.0/configure [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print `checking ...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for `--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or `..']

Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [/usr/local]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [PREFIX]

By default, `make install' will install all the files in
`/usr/local/bin', `/usr/local/lib' etc.  You can specify
an installation prefix other than `/usr/local' using `--prefix',
for instance `--prefix=$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
  --mandir=DIR            man documentation [DATAROOTDIR/man]
  --docdir=DIR            documentation root [DATAROOTDIR/doc/syslog-ng]
  --htmldir=DIR           html documentation [DOCDIR]
  --dvidir=DIR            dvi documentation [DOCDIR]
  --pdfdir=DIR            pdf documentation [DOCDIR]
  --psdir=DIR             ps documentation [DOCDIR]

Program names:
  --program-prefix=PREFIX            prepend PREFIX to installed program names
  --program-suffix=SUFFIX            append SUFFIX to installed program names
  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names

System types:
  --build=BUILD     configure for building on BUILD [guessed]
  --host=HOST       cross-compile to build programs to run on HOST [BUILD]

Optional Features:
  --disable-option-checking  ignore unrecognized --enable/--with options
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --enable-silent-rules   less verbose build output (undo: "make V=1")
  --disable-silent-rules  verbose build output (undo: "make V=0")
  --enable-forced-server-mode   Enable forced server mode.
  --enable-debug      Enable debugging code.
  --enable-force-gnu99      Enforce C99 with gnu extensions.
  --enable-extra-warnings      Enable extra compiler warnings (recommended).
  --enable-env-wrapper    Enable wrapper program to set up various environment variables
  --enable-gprof      Enable gcc profiling.
  --enable-memtrace   Enable alternative leak debugging code.
  --enable-dynamic-linking        Link everything dynamically.
  --enable-mixed-linking          Link 3rd party libraries statically, system libraries dynamically
  --enable-ipv6           Enable support for IPv6.
  --enable-tcp-wrapper    Enable support for TCP wrappers.
  --enable-spoof-source   Enable support for spoofed source addresses.

  --enable-sun-streams    Enable support for Solaris /dev/log STREAMS device.

  --enable-openbsd-system-source    Enable support for OpenBSD /dev/klog device.

  --enable-sql            Enable support for SQL destinations. (default: auto)

  --enable-pacct          Enable support for reading Process Accounting files (EXPERIMENTAL, Linux only).

  --enable-linux-caps     Enable support for managing Linux capabilities (default: auto)

  --enable-ebpf           Enable support for loading of eBPF programs (default: no)

  --enable-gcov           Enable coverage profiling (default: no)

  --enable-mongodb        Enable mongodb destination (default: auto)

 --enable-json=yes/no            Enable JSON support (default: yes)

  --enable-amqp        Enable amqp destination (default: auto)

  --enable-stomp        Enable stomp destination (default: yes)

  --disable-smtp          Disable SMTP support (default: auto)

  --disable-mqtt          Disable MQTT support (default: auto)

  --enable-grpc           Enable GRPC based driver support (OpenTelemetry) (default: auto)

  --enable-cpp           Enable C++ support (default: auto)

  --disable-http          Disable http support (default: auto)

  --disable-redis          Disable REDIS support (default: auto)

  --enable-systemd        Enable systemd support (default: auto)

  --enable-geoip2          Enable GeoIP2 support (default: auto)

  --disable-riemann       Disable riemann destination

  --enable-kafka         Enable rdkafka support

  --disable-python       Disable Python module

  --disable-python-modules  Disable Python based syslog-ng addons while installing the core Python modules

   --enable-manpages      Enable generation of manpages (default: no)
   --enable-manpages-install
                          Enable installation of manpages (default: auto)
 --enable-java  Enable java destination (default: auto)
 --enable-java-modules  Compile all Java modules (default: auto)
  --enable-native        Enable native bindings (default: auto)

 --enable-afsnmp Enable afsnmp module (default: auto)
  --enable-all-modules    Forcibly enable all modules. (default: auto)

  --enable-dependency-tracking
                          do not reject slow dependency extractors
  --disable-dependency-tracking
                          speeds up one-time build
  --enable-static[=PKGS]  build static libraries [default=no]
  --enable-shared[=PKGS]  build shared libraries [default=yes]
  --enable-fast-install[=PKGS]
                          optimize for fast installation [default=yes]
  --disable-libtool-lock  avoid locking (might break parallel builds)
  --disable-largefile     omit support for large files
  --enable-valgrind       Whether to enable Valgrind on the unit tests

Optional Packages:
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --with-libnet=path      use path to libnet-config script
  --with-net-snmp=path      use path to net-snmp-config script
  --with-pidfile-dir=path   Use path as the directory for storing pidfiles
  --with-module-dir=path   Use path as the directory to install modules into
  --with-loggen-plugin-dir=path   Use path as the directory to install loggen plugins into
  --with-python-venv-dir=path   Use path as the directory to install the Python venv into
  --with-module-path=path   Use path as the list of ':' separated directories looked up when searching for modules
  --with-timezone-dir=path   Use path as the directory to get the timezone files
  --with-ld-library-path=path  Set LD_LIBRARY_PATH during runtime to the value given
  --with-systemdsystemunitdir=DIR
                          Directory for systemd service files
  --with-package-name=package name Package name is printed out when syslog-ng started with --version
  --with-sanitizer=address/undefined/etc...
                                         Enables compiler sanitizer supports (default: no)

  --with-jsonc=yes/no
                                         Link against the system supplied jsonc library or explicitly disable it. (default: yes)

  --with-ivykis=system/internal
                                         Link against the system supplied or the built-in ivykis library.

  --with-libesmtp=DIR     use libesmtp library from (prefix) directory DIR
  --with-libpaho-mqtt=DIR use libpaho-mqtt library from (prefix) directory DIR
  --with-protoc=PATH      use protoc binary at PATH
  --with-protoc-gen-grpc-cpp-plugin=PATH
                          use protoc-gen-grpc-cpp plugin at PATH
  --with-libcurl=DIR      use libcurl library from (prefix) directory DIR
  --with-libhiredis=DIR   use libhiredis library from (prefix) directory DIR
  --without-compile-date  Do not include the compile date in the binary

  --with-systemd-journal=system/optional/auto
                                         Link against the system supplied or the wrapper library. (default: auto)

  --with-python=VERSION    Build with a specific version of python

  --with-python-packages=system|venv|none    Use Python packages from the system or a private virtualenv or skip their installation (default: venv)

  --with-python3-home=path Use path as a hard-coded Python home directory that can not be overwritten by the PYTHONHOME environment variable
  --with-pylint=ABSOLUTE_PATH    Specify pylint location
  --with-docbook=FILE    Compiling manpages using docbook in the specified path, if not set, it will be searched on the system, or online version will be used from http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl

  --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
                          both]
  --with-aix-soname=aix|svr4|both
                          shared library versioning (aka "SONAME") variant to
                          provide on AIX, [default=aix].
  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
  --with-sysroot[=DIR]    Search for dependent libraries within DIR (or the
                          compiler's sysroot if not specified).
  --with-python-sys-prefix
                          use Python's sys.prefix and sys.exec_prefix values
  --with-python_prefix    override the default PYTHON_PREFIX
  --with-python_exec_prefix
                          override the default PYTHON_EXEC_PREFIX

Some influential environment variables:
  CC          C compiler command
  CFLAGS      C compiler flags
  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
              nonstandard directory <lib dir>
  LIBS        libraries to pass to the linker, e.g. -l<library>
  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
              you have headers in a nonstandard directory <include dir>
  YACC        The `Yet Another Compiler Compiler' implementation to use.
              Defaults to the first program found out of: `bison -y', `byacc',
              `yacc'.
  YFLAGS      The list of arguments that will be passed by default to $YACC.
              This script will default YFLAGS to the empty string to avoid a
              default value of `-d' given by some make applications.
  PKG_CONFIG  path to pkg-config utility
  PKG_CONFIG_PATH
              directories to add to pkg-config's search path
  PKG_CONFIG_LIBDIR
              path overriding pkg-config's built-in search path
  LT_SYS_LIBRARY_PATH
              User-defined run-time library search path.
  PYTHON      the Python interpreter
  CXX         C++ compiler command
  CXXFLAGS    C++ compiler flags
  CXXCPP      C++ preprocessor
  CPP         C preprocessor
  LIBDBI_CFLAGS
              C compiler flags for LIBDBI, overriding pkg-config
  LIBDBI_LIBS linker flags for LIBDBI, overriding pkg-config
  GLIB_CFLAGS C compiler flags for GLIB, overriding pkg-config
  GLIB_LIBS   linker flags for GLIB, overriding pkg-config
  PCRE2_CFLAGS
              C compiler flags for PCRE2, overriding pkg-config
  PCRE2_LIBS  linker flags for PCRE2, overriding pkg-config
  OPENSSL_CFLAGS
              C compiler flags for OPENSSL, overriding pkg-config
  OPENSSL_LIBS
              linker flags for OPENSSL, overriding pkg-config
  CRITERION_CFLAGS
              C compiler flags for CRITERION, overriding pkg-config
  CRITERION_LIBS
              linker flags for CRITERION, overriding pkg-config
  IVYKIS_CFLAGS
              C compiler flags for IVYKIS, overriding pkg-config
  IVYKIS_LIBS linker flags for IVYKIS, overriding pkg-config
  IVYKIS_VERSION_CHECK_CFLAGS
              C compiler flags for IVYKIS_VERSION_CHECK, overriding pkg-config
  IVYKIS_VERSION_CHECK_LIBS
              linker flags for IVYKIS_VERSION_CHECK, overriding pkg-config
  JSON_CFLAGS C compiler flags for JSON, overriding pkg-config
  JSON_LIBS   linker flags for JSON, overriding pkg-config
  LIBMONGO_CFLAGS
              C compiler flags for LIBMONGO, overriding pkg-config
  LIBMONGO_LIBS
              linker flags for LIBMONGO, overriding pkg-config
  LIBESMTP_CFLAGS
              C compiler flags for LIBESMTP, overriding pkg-config
  LIBESMTP_LIBS
              linker flags for LIBESMTP, overriding pkg-config
  PROTOBUF_CFLAGS
              C compiler flags for PROTOBUF, overriding pkg-config
  PROTOBUF_LIBS
              linker flags for PROTOBUF, overriding pkg-config
  GRPCPP_CFLAGS
              C compiler flags for GRPCPP, overriding pkg-config
  GRPCPP_LIBS linker flags for GRPCPP, overriding pkg-config
  HIREDIS_CFLAGS
              C compiler flags for HIREDIS, overriding pkg-config
  HIREDIS_LIBS
              linker flags for HIREDIS, overriding pkg-config
  LIBRABBITMQ_CFLAGS
              C compiler flags for LIBRABBITMQ, overriding pkg-config
  LIBRABBITMQ_LIBS
              linker flags for LIBRABBITMQ, overriding pkg-config
  LIBRDKAFKA_CFLAGS
              C compiler flags for LIBRDKAFKA, overriding pkg-config
  LIBRDKAFKA_LIBS
              linker flags for LIBRDKAFKA, overriding pkg-config
  RIEMANN_CLIENT_CFLAGS
              C compiler flags for RIEMANN_CLIENT, overriding pkg-config
  RIEMANN_CLIENT_LIBS
              linker flags for RIEMANN_CLIENT, overriding pkg-config
  libsystemd_CFLAGS
              C compiler flags for libsystemd, overriding pkg-config
  libsystemd_LIBS
              linker flags for libsystemd, overriding pkg-config
  libsystemd_namespaces_CFLAGS
              C compiler flags for libsystemd_namespaces, overriding
              pkg-config
  libsystemd_namespaces_LIBS
              linker flags for libsystemd_namespaces, overriding pkg-config
  PYTHON_CFLAGS
              C compiler flags for PYTHON, overriding pkg-config
  PYTHON_LIBS linker flags for PYTHON, overriding pkg-config
  LIBCAP_CFLAGS
              C compiler flags for LIBCAP, overriding pkg-config
  LIBCAP_LIBS linker flags for LIBCAP, overriding pkg-config
  libsystemd_daemon_CFLAGS
              C compiler flags for libsystemd_daemon, overriding pkg-config
  libsystemd_daemon_LIBS
              linker flags for libsystemd_daemon, overriding pkg-config
  LIBSYSTEMD_JOURNAL_CFLAGS
              C compiler flags for LIBSYSTEMD_JOURNAL, overriding pkg-config
  LIBSYSTEMD_JOURNAL_LIBS
              linker flags for LIBSYSTEMD_JOURNAL, overriding pkg-config
  LIBBPF_CFLAGS
              C compiler flags for LIBBPF, overriding pkg-config
  LIBBPF_LIBS linker flags for LIBBPF, overriding pkg-config

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.

Report bugs to the package provider.