##################################################
# The Exim mail transport agent #
##################################################
+# Copyright (c) The Exim Maintainers 2022
+# SPDX-License-Identifier: GPL-2.0-or-later
# This is the template for Exim's main build-time configuration file. It
# contains settings that are independent of any operating system. These are
# Things that depend on the operating system have default settings in
# OS/Makefile-Default, but these are overridden for some OS by files
-# called called OS/Makefile-<osname>. You can further override these by
-# creating files called Local/Makefile-<osname>, and
-# Local/Makefile-<buildname> (where "<osname>" stands for the name of
-# your operating system - look at the names in the OS directory to see
-# which names are recognized, and "<buildname>" is derived from the
-# environment variable "build")
+# called OS/Makefile-<osname>. You can further override these settings by
+# creating files Local/Makefile-<osname>, and Local/Makefile-<build>.
+# The suffix "<osname>" stands for the name of your operating system - look
+# at the names in the OS directory to see which names are recognized,
+# and "<build>" is the content of the environment variable "build".
# However, if you are building Exim for a single OS only, you don't need to
# worry about setting up Local/Makefile-<osname>. Any build-time configuration
# the libraries and headers are installed, as the pkg-config .pc
# specification should include all -L/-I information necessary.
# Enabling the USE_*_PC options should be sufficient. If not using
-# pkg-config, then you have to specify the libraries, and you mmight
+# pkg-config, then you have to specify the libraries, and you might
# need to specify the locations too.
# Uncomment the following lines if you want
# Unless you do this, you must define one of USE_OPENSSL or USE_GNUTLS
# below.
-# If you are buliding with TLS, the library configuration must be done:
+# If you are building with TLS, the library configuration must be done:
# Uncomment this if you are using OpenSSL
# USE_OPENSSL=yes
# For Redis you need to have hiredis installed on your system
# (https://github.com/redis/hiredis).
# Depending on where it is installed you may have to edit the CFLAGS
-# (often += -I/usr/local/include) and LDFLAGS (-lhiredis) lines.
+# (often += -I/usr/local/include) and LOOKUP_LIBS (-lhiredis) lines.
# If your system has pkg-config then the _INCLUDE/_LIBS setting can be
# handled for you automatically by also defining the _PC variable to reference
# LOOKUP_IBASE=yes
# LOOKUP_JSON=yes
# LOOKUP_LDAP=yes
+# LOOKUP_LMDB=yes
+
# LOOKUP_MYSQL=yes
# LOOKUP_MYSQL_PC=mariadb
# LOOKUP_NIS=yes
#------------------------------------------------------------------------------
-# The PCRE library is required for Exim. There is no longer an embedded
+# The PCRE2 library is required for Exim. There is no longer an embedded
# version of the PCRE library included with the source code, instead you
-# must use a system library or build your own copy of PCRE.
+# must use a system library or build your own copy of PCRE2.
# In either case you must specify the library link info here. If the
-# PCRE header files are not in the standard search path you must also
+# PCRE2 header files are not in the standard search path you must also
# modify the INCLUDE path (above)
#
# Use PCRE_CONFIG to query the pcre-config command (first found in $PATH)
# to find the include files and libraries, else use PCRE_LIBS and set INCLUDE
# too if needed.
-PCRE_CONFIG=yes
-# PCRE_LIBS=-lpcre
+PCRE2_CONFIG=yes
+# PCRE_LIBS=-lpcre2
#------------------------------------------------------------------------------
-# Comment out the following line to remove DANE support
-# Note: Enabling this unconditionally overrides DISABLE_DNSSEC
-# forces you to have SUPPORT_TLS enabled (the default). For DANE under
-# GnuTLS we need an additional library. See TLS_LIBS or USE_GNUTLS_PC
-# below.
+# Comment out the following line to remove DANE support.
+# Note: DANE support requires DNSSEC support (the default) and
+# SUPPORT_TLS (the default). For DANE under GnuTLS we need an additional
+# library. See TLS_LIBS or USE_GNUTLS_PC below.
+
SUPPORT_DANE=yes
#------------------------------------------------------------------------------
# You do not need to use this for any lookup information added via pkg-config.
# LOOKUP_INCLUDE=-I /usr/local/ldap/include -I /usr/local/mysql/include -I /usr/local/pgsql/include
-# LOOKUP_LIBS=-L/usr/local/lib -lldap -llber -lmysqlclient -lpq -lgds -lsqlite3
+# LOOKUP_INCLUDE +=-I /usr/local/include
+# LOOKUP_LIBS=-L/usr/local/lib -lldap -llber -lmysqlclient -lpq -lgds -lsqlite3 -llmdb
+
+#------------------------------------------------------------------------------
+# If you included LOOKUP_LMDB above you will need the library. Depending
+# on where installed you may also need an include directory
+#
+# LOOKUP_INCLUDE += -I/usr/local/include
+# LOOKUP_LIBS += -llmdb
#------------------------------------------------------------------------------
# By default, Exim has support for checking the AD bit in a DNS response, to
# determine if DNSSEC validation was successful. If your system libraries
# do not support that bit, then set DISABLE_DNSSEC to "yes"
-# Note: Enabling SUPPORT_DANE unconditionally overrides this setting.
+# Note: DNSSEC is required for DANE support.
# DISABLE_DNSSEC=yes
# DISABLE_EVENT=yes
-# Uncomment this line to include support for early pipelining, per
+# Uncomment this line to remove support for early pipelining, per
# https://datatracker.ietf.org/doc/draft-harris-early-pipe/
-# SUPPORT_PIPE_CONNECT=yes
+# DISABLE_PIPE_CONNECT=yes
# Uncomment the following to remove the fast-ramp two-phase-queue-run support
# DISABLE_QUEUE_RAMP=yes
# Uncomment the following lines to add SRS (Sender Rewriting Scheme) support
-# using only native facilities. See EXPERIMENTAL_SRS_ALT for an alternative.
+# using only native facilities.
# SUPPORT_SRS=yes
# Uncomment the following line to add support for talking to dccifd. This
# defaults the socket path to /usr/local/dcc/var/dccifd.
-# Doing so will also explicitly turn on the WITH_CONTENT_SCAN option.
+# This support also requires WITH_CONTENT_SCAN enabled.
# EXPERIMENTAL_DCC=yes
-# Uncomment the following lines to add SRS (Sender rewriting scheme) support
-# using the implementation in linbsrs_alt.
-# You need to have libsrs_alt installed on your system (srs.mirtol.com).
-# Depending on where it is installed you may have to edit the CFLAGS and
-# LDFLAGS lines.
-
-# EXPERIMENTAL_SRS_ALT=yes
-# CFLAGS += -I/usr/local/include
-# LDFLAGS += -lsrs_alt
-
# Uncomment the following line to add DMARC checking capability, implemented
# using libopendmarc libraries. You must have SPF and DKIM support enabled also.
# SUPPORT_DMARC=yes
# Uncomment the following if you need to change the default. You can
# override it at runtime (main config option dmarc_tld_file)
# DMARC_TLD_FILE=/etc/exim/opendmarc.tlds
+#
+# Library version libopendmarc-1.4.1-1.fc33.x86_64 (on Fedora 33) is known broken;
+# 1.3.2-3 works. It seems that the OpenDMARC project broke their API.
+# Use this option if you need to build with an old library (1.3.x)
+# DMARC_API=100300
# Uncomment the following line to add ARC (Authenticated Received Chain)
# support. You must have SPF and DKIM support enabled also.
# Uncomment the following to include extra information in fail DSN message (bounces)
# EXPERIMENTAL_DSN_INFO=yes
-# Uncomment the following to add LMDB lookup support
-# You need to have LMDB installed on your system (https://github.com/LMDB/lmdb)
-# Depending on where it is installed you may have to edit the CFLAGS and LDFLAGS lines.
-# EXPERIMENTAL_LMDB=yes
-# CFLAGS += -I/usr/local/include
-# LDFLAGS += -llmdb
-
# Uncomment the following line to add queuefile transport support
# EXPERIMENTAL_QUEUEFILE=yes
+#
+# Uncomment the following line to add XCLIENT support
+# EXPERIMENTAL_XCLIENT=yes
###############################################################################
# THESE ARE THINGS YOU MIGHT WANT TO SPECIFY #
# understand these issues, go with the defaults, which are used by many sites.
+#------------------------------------------------------------------------------
+# Which DBM library to use. If you do not specify a specific here, you get
+# the platform default. Uncomment the pair of lines as preferred.
+# Note: when changing an installation from one DB type to another all the
+# hints-DB files, in spool/db, should be removed.
+
+# gdbm in native mode
+# USE_GDBM = yes
+# DBMLIB = -lgdbm
+
+# gdbm in Berkeley-DB compatibility mode
+# USE_NDBM = yes
+# DBMLIB = -lgdbm -lgdbm_compat
+
+# tdb
+# USE_TDB = yes
+# DBMLIB = -ltdb
+
+# Berkeley DB
+# USE_DB = yes
+# DBMLIB = -ldb
+
+
#------------------------------------------------------------------------------
# Although Exim is normally a setuid program, owned by root, it refuses to run
# local deliveries as root by default. There is a runtime option called
# For development, add this to include code to time various stages and report.
# CFLAGS += -DMEASURE_TIMING
+# For a very slightly smaller build, for constrained systems, uncomment this.
+# The feature involved is purely for debugging.
+
+# DISABLE_CLIENT_CMD_LOG=yes
+
# End of EDITME for Exim 4.