X-Git-Url: https://git.exim.org/users/jgh/exim.git/blobdiff_plain/1c098beb73a88ff34536904610cfcc3c8af839c9..8c690dfdc2c09b4aebe32a077c67b41b8ee2a6f0:/doc/doc-txt/OptionLists.txt?ds=inline
diff --git a/doc/doc-txt/OptionLists.txt b/doc/doc-txt/OptionLists.txt
index e99b4e0be..5728643a8 100644
--- a/doc/doc-txt/OptionLists.txt
+++ b/doc/doc-txt/OptionLists.txt
@@ -1,5 +1,3 @@
-$Cambridge: exim/doc/doc-txt/OptionLists.txt,v 1.15 2006/02/09 10:04:00 ph10 Exp $
-
LISTS OF EXIM OPTIONS
---------------------
@@ -11,7 +9,7 @@ This file contains complete lists of four kinds of Exim option:
4. Those that can appear in the build time configuration for the Exim monitor
(Local/eximon.conf).
-This file was last updated for Exim release 4.60.
+This file was last updated for Exim release 4.72.
1. RUN TIME OPTIONS
@@ -50,12 +48,14 @@ release 4.00, and so no router options are shown as earlier than 4.00, though
in fact some of them were inherited from earlier versions.
-----------------------------------------------------------------------------------------
-accept_8bitmime boolean false main 1.60
+accept_8bitmime boolean true main 1.60 changed to true in 4.80
acl_not_smtp string* unset main 4.11
acl_not_smtp_mime string* unset main 4.51 with content scan
acl_smtp_auth string* unset main 4.00
acl_smtp_connect string* unset main 4.11
acl_smtp_data string* unset main 4.00
+acl_smtp_data_prdr string* unset main 4.82 with experimental_prdr
+acl_smtp_dkim string* unset main 4.70 unless disable_dkim
acl_smtp_etrn string* unset main 4.00
acl_smtp_expn string* unset main 4.00
acl_smtp_helo string* unset main 4.20
@@ -68,6 +68,7 @@ acl_smtp_rcpt string* unset main
acl_smtp_starttls string* unset main 4.11
acl_smtp_vrfy string* unset main 4.00
address_data string* unset routers 4.00
+address_retry_include_sender boolean true smtp 4.64
address_test boolean true routers 4.14
admin_groups string list unset main 3.02
allow_domain_literals boolean false main 4.00 replacing forbid_domain_literals
@@ -83,6 +84,7 @@ allow_symlink boolean false appendfile
allow_utf8_domains boolean false main 4.14
auth_advertise_hosts host list "*" main 4.00
authenticated_sender string* unset smtp 4.14
+authenticated_sender_force boolean false smtp 4.61
authenticate_hosts host list unset smtp 3.13
auto_thaw time 0s main
av_scanner string* + main 4.50 with content scan
@@ -124,6 +126,8 @@ check_spool_space integer 0 main
check_string string "From " appendfile 3.03
unset pipe 3.03
check_srv string* unset dnslookup 4.31
+client_condition string* unset authenticators 4.68
+client_ignore_invalid_base64 boolean false plaintext 4.61
client_name string* + cram_md5 3.10
client_secret string* unset cram_md5 3.10
client_send string* unset plaintext 3.10
@@ -133,6 +137,7 @@ command string* unset lmtp
command_group string unset queryprogram 4.00
command_timeout time 5m smtp
command_user string unset queryprogram 4.00
+commandline_checks_require_admin boolean false main 4.90
condition string* unset routers 4.00
connect_timeout time 0s smtp 1.60
connection_max_messages integer 500 smtp 4.00 replaces batch_max
@@ -148,6 +153,7 @@ data_timeout time 5m smtp
debug_print string* unset authenticators 4.00
unset routers 4.00
unset transports 2.00
+debug_store boolean false main 4.90
delay_after_cutoff boolean true smtp
delay_warning time list 24h main
delay_warning_condition string* + main 1.73
@@ -155,26 +161,42 @@ deliver_drop_privilege boolean false main
deliver_queue_load_max fixed-point unset main 1.70
delivery_date_add boolean false transports
delivery_date_remove boolean true main
+dkim_canon string* unset smtp 4.70
+dkim_domain string list* unset smtp 4.72
+dkim_private_key string* unset smtp 4.70
+dkim_selector string* unset smtp 4.70
+dkim_sign_headers string* (RFC4871) smtp 4.70
+dkim_strict string* unset smtp 4.70
+dkim_verify_signers string* $dkim_signers main 4.70
directory string* unset appendfile
+directory_file string* + appendfile
directory_mode octal-integer 0700 appendfile
directory_transport string* unset redirect 4.00
disable_ipv6 boolean false main 4.61
disable_logging boolean false routers 4.11
false transports 4.11
+dmarc_forensic_sender string unset main 4.82 if experimental_dmarc
+dmarc_history_file string unset main 4.82 if experimental_dmarc
+dmarc_tld_file string unset main 4.82 if experimental_dmarc
dns_again_means_nonexist domain list unset main 1.89
dns_check_names_pattern string + main 2.11
dns_csa_search_limit integer 5 main 4.60
dns_csa_use_reverse boolean true main 4.60
+dns_dnssec_ok integer -1 main 4.82
+dns_dane_ok integer -1 main 4.83
dns_ipv4_lookup boolean false main 3.20
dns_qualify_single boolean true smtp
dns_retrans time 0s main 1.60
dns_retry integer 0 main 1.60
dns_search_parents boolean false smtp
+dns_use_edns0 integer -1 main 4.76
domains domain list unset routers 4.00
driver string unset authenticators
unset routers 4.00
unset transports
drop_cr boolean false main 4.00 became a no-op in 4.21
+dscp string unset smtp 4.82
+dsn_from string* + main 4.67
envelope_to_add boolean false transports
envelope_to_remove boolean true main
environment string* unset pipe 2.95
@@ -202,6 +224,7 @@ file_format string unset appendfile
file_must_exist boolean false appendfile
file_optional boolean false autoreply
file_transport string* unset redirect 4.00
+filter_prepend_home boolean true redirect 4.63
final_timeout time 10m smtp
finduser_retries integer 0 main
forbid_blackhole boolean false redirect 4.00
@@ -219,12 +242,23 @@ forbid_filter_run boolean false redirect
forbid_include boolean false redirect 4.00
forbid_pipe boolean false redirect 4.00
forbid_sieve_filter boolean false redirect 4.44
+forbid_smtp_code boolean false redirect 4.63
+force_command boolean false pipe 4.82
freeze_exec_fail boolean false pipe 1.89
+freeze_signal boolean false pipe 4.75
freeze_tell boolean false main 4.00 replaces freeze_tell_mailmaster
from string* unset autoreply
gecos_name string* unset main
gecos_pattern string unset main
gethostbyname boolean false smtp
+gnutls_allow_auto_pkcs11 boolean false main 4.82
+gnutls_compat_mode boolean unset main 4.70
+gnutls_require_kx string* unset main 4.67 deprecated, warns
+ string* unset smtp 4.67 deprecated, warns
+gnutls_require_mac string* unset main 4.67 deprecated, warns
+ string* unset smtp 4.67 deprecated, warns
+gnutls_require_protocols string* unset main 4.67 deprecated, warns
+ string* unset smtp 4.67 deprecated, warns
group string + routers 4.00
unset transports 4.00 replaces local option in some transports
header_line_maxsize integer 0 (unset) main 4.14
@@ -246,6 +280,7 @@ helo_verify_hosts host list unset main
hide_child_in_errmsg false redirect 4.00
hold_domains domain list unset main 1.70
home_directory string* unset transports 4.00 replaces individual options
+host_all_ignored string "defer" manualroute 4.67
host_find_failed string "freeze" manualroute 4.00
host_lookup host list unset main 3.00
host_lookup_order string list "bydns:byaddr" main 4.30
@@ -253,18 +288,24 @@ host_reject_connection host list unset main
hosts string unset iplookup 4.00
string list* unset smtp
hosts_avoid_esmtp host list unset smtp 4.21
+hosts_avoid_pipelining host list unset smtp 4.67
hosts_avoid_tls host list unset smtp 3.20
hosts_connection_nolog host list unset main 4.43
hosts_max_try integer 5 smtp 3.20
hosts_max_try_hardlimit integer 50 smtp 4.50
hosts_nopass_tls host list unset smtp 4.00
+hosts_noproxy_tls host list "*" smtp 4.90
hosts_override boolean false smtp 2.11
hosts_randomize boolean false manualroute 4.00
false smtp 3.14
hosts_require_auth host list unset smtp 4.00
+hosts_require_ocsp host list unset smtp 4.82 if experimental_ocsp
hosts_require_tls host list unset smtp 3.20
hosts_treat_as_local domain list unset main 1.95
hosts_try_auth host list unset smtp 4.00
+hosts_try_fastopen host list unset smtp 4.88
+hosts_try_prdr host list unset smtp 4.82 if experimental_prdr
+ibase_servers string unset main 4.23
ignore_bounce_errors_after time 0s main 4.00
ignore_eacces boolean false redirect 4.00
ignore_enotdir boolean false redirect 4.00
@@ -311,7 +352,8 @@ mailbox_size string* unset appendfile
maildir_format boolean false appendfile 1.70
maildir_retries integer 10 appendfile 1.70
maildir_tag string* unset appendfile 1.92
-maildir_use_size_file boolean false appendfile 4.30
+maildir_use_size_file boolean* false appendfile 4.30 expanded in 4.77
+maildirfolder_create_regex string unset appendfile 4.62
mailstore_format boolean false appendfile 2.00
mailstore_prefix string* unset appendfile 2.00
mailstore_suffix string* unset appendfile 2.00
@@ -320,6 +362,7 @@ max_output integer 20K pipe
max_rcpt integer 100 smtp 1.60
max_user_name_length integer 0 main
mbx_format boolean false appendfile 2.10
+message_body_newlines boolean false main 4.68
message_body_visible integer 500 main
message_id_header_domain string* unset main 4.11
message_id_header_text string* unset main
@@ -346,6 +389,7 @@ once string* unset autoreply
once_file_size integer 0 autoreply 3.20
once_repeat time 0s autoreply 2.95
one_time boolean false redirect 4.00
+openssl_options string +no_sslv2 main 4.73 default changed in 4.80
optional boolean false iplookup 4.00
oracle_servers string unset main 4.00
owners string list unset redirect 4.00
@@ -356,6 +400,7 @@ path string "/usr/bin" pipe
percent_hack_domains domain list unset main
perl_at_start boolean false main 2.10
perl_startup string unset main 2.10
+permit_coredump boolean false pipe 4.73
pgsql_servers string list unset main 3.14
pid_file_path string ++ main
pipe_as_creator boolean false pipe
@@ -364,6 +409,7 @@ pipelining_advertise_hosts host list "*" main
port integer 0 iplookup 4.00
string "smtp" smtp
preserve_message_logs boolean false main
+prdr_enable boolean false main 4.82 if experimental_prdr
primary_hostname string + main
print_topbitchars boolean false main 1.89
process_log_path string unset main 4.21
@@ -382,6 +428,7 @@ queue_list_requires_admin boolean true main
queue_only boolean false main
queue_only_file string unset main 2.05
queue_only_load fixed-point unset main
+queue_only_load_latch boolean true main 4.68
queue_only_override boolean true main 4.21
queue_run_in_order boolean false main 1.70
queue_run_max integer 5 main
@@ -425,7 +472,7 @@ return_size_limit integer 100K main
rewrite boolean true redirect 4.00
rewrite_headers boolean true dnslookup 4.00
rfc1413_hosts host list * main
-rfc1413_query_timeout time 30s main
+rfc1413_query_timeout time 5s main
router_home_directory string* unset routers 4.11
route_data string* unset manualroute 4.00
route_list string list unset manualroute 4.00
@@ -436,14 +483,19 @@ sender_unqualified_hosts host list unset main
senders address list unset routers 4.00
serialize_hosts host list unset smtp 1.60
server_advertise_condition string* unset authenticators 4.14
-server_condition string* unset plaintext 3.10
-server_hostname string* "$primary_hostname" cyrus_sasl 4.43
+server_channelbinding bool false gsasl 4.80
+server_condition string* unset authenticators 3.10 (plaintext) 4.64 (others)
+server_hostname string* "$primary_hostname" cyrus_sasl,gsasl,heimdal_gssapi (cyrus-only) 4.80 (others)
+server_keytab string* unset heimdal_gssapi 4.80
server_mail_auth_condition string* unset authenticators 3.22
-server_mech string public_name cyrus_sasl 4.43
+server_mech string public_name cyrus_sasl,gsasl 4.43 (cyrus-only) 4.80 (others)
+server_password string unset gsasl 4.80
server_prompts string* unset plaintext 3.10
-server_realm string unset cyrus_sasl 4.43
+server_realm string unset cyrus_sasl,gsasl 4.43 (cyrus-only) 4.80 (others)
+server_scram_iter string* unset gsasl 4.80
+server_scram_salt string* unset gsasl 4.80
server_secret string* unset cram_md5 3.10
-server_service string "smtp" cyrus_sasl 4.43
+server_service string "smtp" cyrus_sasl,gsasl,heimdal_gssapi (cyrus-only) 4.80 (others)
server_set_id string* unset authenticators 3.10
shadow_condition string* unset transports
shadow_transport string unset transports
@@ -475,10 +527,12 @@ smtp_receive_timeout time 5m main
smtp_reserve_hosts host list unset main
smtp_return_error_details boolean false main 4.11
socket string* unset lmtp 4.11
-spamd_address string + main 4.50 with content scan
+spamd_address string* + main 4.50 with content scan
split_spool_directory boolean false main 1.70
spool_directory string ++ main
+spool_wireformat boolean false main 4.90
sqlite_lock_timeout time 5s main 4.53
+strict_acl_vars boolean false main 4.64
srv_fail_domains domain list unset dnslookup 4.43
strip_excess_angle_brackets boolean false main
strip_trailing_dot boolean false main
@@ -498,6 +552,7 @@ system_filter_reply_transport string unset main
system_filter_user string unset main 4.00 replacing message_filter
tcp_nodelay boolean true main 4.23
true smtp 4.23
+tcp_wrappers_daemon_name string* ++ main 4.73
temp_errors string list + pipe 1.95
text string* unset autoreply
timeout time 5m lmtp 3.20
@@ -510,13 +565,17 @@ timezone string + main
tls_advertise_hosts host list * main 3.20
tls_certificate string* unset main 3.20
unset smtp 3.20
+tls_dh_max_bits integer 2236 main 4.80
+tls_dh_min_bits integer 1024 smtp 4.82
tls_dhparam string* unset main 3.20
+tls_ocsp_file string* unset main 4.80 if experimental_ocsp
tls_on_connect_ports string unset main 4.43
tls_privatekey string* unset main 3.20
unset smtp 3.20
tls_remember_emstp boolean false main 4.21
tls_require_ciphers string* unset smtp 4.00 replaces tls_verify_ciphers
string* unset main 4.33
+tls_sni string* unset main 4.80
tls_tempfail_tryclear boolean true smtp 4.05
tls_try_verify_hosts host list unset main 4.00
tls_verify_certificates string* unset main 3.20
@@ -569,10 +628,12 @@ provide compatibility with Sendmail.
-- Terminate options
--help Give a little help (not a lot)
+--version Give version information (alias for -bV)
-B * Ignored
-bd + Start daemon
-bdf + Start daemon and run it in the foreground
-be Test string expansion
+-bem Test string expansion, read test message first
-bF Test system filter file
-bf Test user filter file
-bfd Set domain for filter testing
@@ -582,7 +643,9 @@ provide compatibility with Sendmail.
-bh Test incoming SMTP call, omitting callouts
-bhc Test incoming SMTP call, with callouts
-bi * Run bi_command
+-bI:help Show list of accepted -bI: options
-bm Accept message on standard input
+-bmalware + Invoke configured malware scanning against supplied filename
-bnq Don't qualify addresses in locally submitted messages
-bP Show configuration option settings
-bp + List the queue
@@ -600,6 +663,7 @@ provide compatibility with Sendmail.
-bV Verify version number
-bv Test recipient address verification
-bvs Test sender address verification
+-bw + Inetd wait mode
-C + Use alternate configuration file
-D + Define macro for configuration file
-d + Turn on debugging output
@@ -627,8 +691,10 @@ provide compatibility with Sendmail.
-Mmad + Mark all recipients delivered
-Mmd + Mark one recipient delivered
-Mrm + Remove message(s) (no bounce)
+-Mset + Load message's variables when testing with -be
-Mt + Thaw message(s)
-Mvb + View message body
+-Mvc + View entire message in RFC 2822 format
-Mvh + View message header
-Mvl + View message log
-m * Ignored
@@ -654,6 +720,7 @@ provide compatibility with Sendmail.
-oMai # Supply authenticated id
-oMas # Supply authenticated sender
-oMi # Supply interface address
+-oMm # Supply message reference
-oMr # Supply protocol name
-oMs # Supply host name
-oMt # Supply ident string
@@ -700,9 +767,12 @@ provide compatibility with Sendmail.
3. BUILD TIME OPTIONS FOR EXIM
------------------------------
-The table below contains a complete list of options that can be set in
-Local/Makefile when building Exim. More information about individual options
-can be found in src/EDITME and OS/Makefile-Default.
+The table below contains a "mostly" complete list of options that can be
+set in Local/Makefile when building Exim. The only items not included are
+those whose names can be trivially derived from rules stated below.
+
+More information about individual options can be found in src/EDITME and
+OS/Makefile-Default.
The second column below gives the type of option:
@@ -732,26 +802,45 @@ empty by default, and is provided for just this reason. Of course, if you do
actually want to modify a setting from the OS-specific file, there is nothing
to stop you overriding it in your Local/Makefile.
+When building Exim with dynamically loaded lookup support, for "LOOKUP_FOO",
+you can define "LOOKUP_FOO_INCLUDE" and "LOOKUP_FOO_LIBS", for includes and
+libraries specific only to that module. These rules are only used where the
+relevant lookup is a module. These options are not explicitly listed below.
+
+Variables with names endined `_PC' are used for pkg-config integration; setting
+the value to the name of a pkg-config package will cause Exim's build system to
+query the --cflags and --libs for the given name, when building anything
+dependent upon the component associated with the `_PC' variable. For lookups,
+if the lookup is dynamically loaded, then this *replaces* the use of the
+corresponding _INCLUDE and _LIBS options, which will be ignored. If the lookup
+is statically loaded into Exim, the results will be inserted into the
+"LOOKUP_INCLUDE" and "LOOKUP_LIBS" options. For authenticator, the results
+will be inserted into the "CFLAGS" and "AUTH_LIBS" options. These options are
+only listed below for the TLS implementation cases.
+
+
Option Type Description
------------------------------------------------------------------------------
-ACL_CVARS=20 optional* number of acl_c variables
-ACL_MVARS=20 optional* number of acl_m variables
ALT_CONFIG_PREFIX optional restricts location of -C files
-ALT_CONFIG_ROOT_ONLY optional* privileged -C needs root (not exim)
APPENDFILE_MODE optional*
APPENDFILE_DIRECTORY_MODE optional*
APPENDFILE_LOCKFILE_MODE optional*
AR system command to build a library
AUTH_CRAM_MD5 driver include cram_md5 authenticator
AUTH_CYRUS_SASL driver include Cyrus SASL authenticator
+AUTH_GSASL driver include GNU SASL authenticator
+AUTH_HEIMDAL_GSSAPI driver include Heimdal GSSAPI authenticator
+AUTH_LIBS system library linkage for authenticators
AUTH_PLAINTEXT driver include plaintext authenticator
AUTH_SPA driver include SPA (NTLM) authenticator
+AUTH_VARS=3 optional* number of $auth variables
BASENAME_COMMAND system** path to basename
BASE_62=62 optional* not normally changed for Unix
BIN_DIRECTORY mandatory Exim binary directory
CC system** C compiler
CFLAGS system** flags for C compiler
+CFLAGS_DYNAMIC system** extra flags needed for .so modules
CHGRP_COMMAND system** path to chgrp
CHOWN_COMMAND system** path to chown
COMPRESS_COMMAND system path to a compress command
@@ -767,9 +856,11 @@ DB_DIRECTORY_MODE optional* mode for hints directory
DB_LOCKFILE_MODE optional* mode for hints lock files
DB_LOCK_TIMEOUT optional* timeout for hints lock files
DB_MODE optional* mode for hints files
-DEFAULT_CRYPT optional use crypt16() as default
+DEFAULT_CRYPT optional default crypt() function
DELIVER_IN_BUFFER_SIZE optional*
DELIVER_OUT_BUFFER_SIZE optional*
+DISABLE_DKIM optional disables DKIM support
+DISABLE_DNSSEC optional disables attempts to use DNSSEC
DISABLE_D_OPTION optional disables -D option
ERRNO_QUOTA optional* error code for system quota failures
EXICYCLOG_MAX optional number of old log files to keep
@@ -783,11 +874,12 @@ EXIM_MONITOR optional set to eximon.bin to compile
EXIM_PERL optional
EXIM_USER mandatory user to use for Exim
EXIWHAT_EGREP_ARG system** to find Exim processes from ps
-EXIWHAT_KILL_SIGNAL system** -SIGUSER1 or numerical equivalent
+EXIWHAT_KILL_SIGNAL system** -SIGUSR1 or numerical equivalent
EXIWHAT_MULTIKILL_CMD system**
EXIWHAT_MULTIKILL_ARG system**
EXIWHAT_PS_ARG system** to list all processes
EXIWHAT_PS_CMD system** path to ps command
+EXPAND_LISTMATCH_RHS optional* restore pre-4.77 match_*{}{} behaviour
EXTRALIBS system additional libraries
EXTRALIBS_EXIM system additional libraries for Exim only
EXTRALIBS_EXIMON system additional libraries for the monitor
@@ -823,6 +915,7 @@ LOOKUP_INCLUDE lookup include files for lookups
LOOKUP_LDAP lookup include ldap lookup
LOOKUP_LIBS lookup include libraries for lookups
LOOKUP_LSEARCH lookup include all lsearch lookups
+LOOKUP_MODULE_DIR optional* where dynamic lookup modules live
LOOKUP_MYSQL lookup include mysql lookup
LOOKUP_NIS lookup include nis lookup
LOOKUP_NISPLUS lookup include nisplus lookup
@@ -830,6 +923,8 @@ LOOKUP_ORACLE lookup include oracle lookup
LOOKUP_PGSQL lookup include pgsql lookup
LOOKUP_TESTDB lookup*
LOOKUP_WHOSON lookup include whoson lookup
+LOOKUP_*_INCLUDE optional* include files for dynamic module
+LOOKUP_*_LIBS optional* libraries for dynamic module
MAKE_SHELL optional* shell to use for make
MAX_FILTER_SIZE optional* max file size for filter files
MAX_INCLUDE_SIZE optional* max file size for :include: files
@@ -839,7 +934,8 @@ MAX_INTERFACES system maximum network interfaces
MSGLOG_DIRECTORY_MODE optional* mode for message log directory
MV_COMMAND system path to mv command
NO_SYMLINK optional install doesn't make 'exim" symlink
-PCRE_CFLAGS system compile flags for PCRE library
+PCRE_CONFIG system* use pcre-config for PCRE support
+PCRE_LIBS system* library for using PCRE
PERL_CC system* compiler for Perl interface code
PERL_CCOPTS system* flags for same
PERL_COMMAND system path to Perl
@@ -873,20 +969,26 @@ SUPPORT_TRANSLATE_IP_ADDRESS optional* support for address translation
SYSLOG_LOG_PID optional add pid to syslog lines
SYSLOG_LONG_LINES optional do not split long syslog lines
SYSTEM_ALIASES_FILE optional defaults to /etc/aliases
+TCP_WRAPPERS_DAEMON_NAME system* daemon name used by tcpwrappers library
TIMEZONE_DEFAULT optional default for timezone option
TLS_INCLUDE optional path to include files for TLS
TLS_LIBS optional additional libraries for TLS
-TMPDIR system value for TMPDIR environment variable
+EXIM_TMPDIR system value for TMPDIR environment variable
TRANSPORT_APPENDFILE driver include appendfile transport
TRANSPORT_AUTOREPLY driver include autoreply transport
TRANSPORT_LMTP driver include lmtp transport
TRANSPORT_PIPE driver include pipe transport
TRANSPORT_SMTP driver include smtp transport
+TRUSTED_CONFIG_LIST optional config files safe to retain privileges
USE_DB system** use native DB interface
USE_GNUTLS optional use GnuTLS instead of OpenSSL
+USE_GNUTLS_PC optional probably "gnutls"
+USE_OPENSSL_PC optional probably "openssl"
USE_READLINE optional try to load libreadline for -be
USE_TCP_WRAPPERS system link with tcpwrappers
USE_TDB optional use the tdb DB interface
+WHITELIST_D_MACROS optional -Dmacros safe to retain privileges with
+WITH_OLD_CLAMAV_STREAM optional* use ClamAV API from before ClamAV 0.95
X11 system** X11 base directory
X11_LD_LIB system** X11 link library
XINCLUDE system** X11 include directory