# Exim distribution directory before running the "make" command.
# 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>, where "<osname>" stands for the name of your
-# operating system - look at the names in the OS directory to see which names
-# are recognized.
+# 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")
# 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
# LOOKUP_CDB=yes
# LOOKUP_DSEARCH=yes
# LOOKUP_IBASE=yes
+# LOOKUP_JSON=yes
# LOOKUP_LDAP=yes
# LOOKUP_MYSQL=yes
# LOOKUP_MYSQL_PC=mariadb
# don't need to set LOOKUP_INCLUDE if the relevant directories are already
# specified in INCLUDE. The settings below are just examples; -lpq is for
# PostgreSQL, -lgds is for Interbase, -lsqlite3 is for SQLite, -lhiredis
-# is for Redis.
+# is for Redis, -ljansson for JSON.
#
# You do not need to use this for any lookup information added via pkg-config.
# LDFLAGS += -lsrs_alt
# Uncomment the following line to add DMARC checking capability, implemented
-# using libopendmarc libraries. You must have SPF support enabled also.
+# using libopendmarc libraries. You must have SPF and DKIM support enabled also.
# EXPERIMENTAL_DMARC=yes
-# DMARC_TLD_FILE= /etc/exim/opendmarc.tlds
# CFLAGS += -I/usr/local/include
# LDFLAGS += -lopendmarc
+# 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
# Uncomment the following line to add ARC (Authenticated Received Chain)
# support. You must have SPF and DKIM support enabled also.
-# EXPERIMENTAL_ARC
+# EXPERIMENTAL_ARC=yes
# Uncomment the following lines to add Brightmail AntiSpam support. You need
# to have the Brightmail client SDK installed. Please check the experimental
# AUTH_CRAM_MD5=yes
# AUTH_CYRUS_SASL=yes
# AUTH_DOVECOT=yes
+# AUTH_EXTERNAL=yes
# AUTH_GSASL=yes
# AUTH_GSASL_PC=libgsasl
# AUTH_HEIMDAL_GSSAPI=yes