#
# Makefile helper for options handling.
#
# Targets and their behaviors:
#
# show-variables-list	- shows WITH_*, WITHOUT_ variables set by default.
#
# show-options-list	- generates OPTIONS string compatible with ports
#                         format. Can by safely used by maintainer to
#                         re-generate sorted options list to cut-and-paste them
#                         into `options' file.
#
# $FreeBSD$

AUTH_CRAM_MD5	= "Enable CRAM-MD5 authentication mechanisms"
AUTH_DOVECOT	= "Enable Dovecot authentication mechanisms"
AUTH_PLAINTEXT	= "Enalbe plaintext authentication"
AUTH_SPA	= "Enable Secure Password Authentication"
CDB		= "Enable CDB-style lookups"
DAEMON		= "Install scripts to run as a daemon"
DNSDB		= "Enable DNS-style lookups"
DSEARCH		= "Enable directory-list lookups"
EMBEDDED_PERL	= "Enable embedded Perl interpreter"
ICONV		= "Enable header charset conversion"
IPV6		= "Enable IPv6 support"
LMTP		= "RFC2033 SMTP over command pipe transport"
LSEARCH		= "Enable wildcarded-file lookups"
MAILDIR		= "Enable Maildir mailbox format"
MAILSTORE	= "Enable Mailstore mailbox format"
MBX		= "Enable MBX mailbox format"
NIS		= "Enable NIS-style lookups"
OLD_DEMIME	= "Enable old, deprecated \"demime\" ACL"
PAM		= "Enable PAM authentication mechanisms"
PASSWD		= "Enable /etc/passwd lookups"
SUID		= "Install the exim binary suid root"
TLS		= "Link against OpenSSL"

ALT_CONFIG_PREFIX	= "Allow alternate configuration files"
AUTH_RADIUS	= "Enable radius (RFC 2865) authentication"
AUTH_SASL	= "Enable use of Cyrus SASL auth library"
CONTENT_SCAN	= "Enable exiscan email content scanner"
DCC		= "Enable DCC at ACL support via dccifd"
DEBUG		= "Build with debugging symbols"
EXIMON		= "Build eximon monitor (require XFree86!)"
KAS		= "Build with Kaspersky AntiSpam local scan"
MYSQL		= "Link against libmysqlclient library"
OPENLDAP	= "Link against libldap"
PGSQL		= "Link against libpq"
READLINE	= "Enable readline(3) library"
SASLAUTHD	= "Enable use of Cyrus SASL auth daemon"
SA_EXIM		= "SA-Exim support"
SPF		= "Enable Sender Policy Framework checking"
SQLITE		= "Enable SQLite lookups"
SRS		= "Enable Sender Rewriting Scheme"
SRS_ALT		= "Enable alternative SRS library"
TCP_WRAPPERS	= "Enable /etc/hosts.allow access control"
WISHLIST	= "Include the unsupported patches"
XCLIENT		= "Enable XCLIENT command in exim"

ENABLED_OPTIONS+=	\
		AUTH_CRAM_MD5 \
		AUTH_DOVECOT \
		AUTH_PLAINTEXT \
		AUTH_SPA \
		CDB \
		DAEMON \
		DNSDB \
		DSEARCH \
		ICONV \
		IPV6 \
		LMTP \
		LSEARCH \
		MAILDIR \
		MAILSTORE \
		MBX \
		NIS \
		OLD_DEMIME \
		PAM \
		PASSWD \
		EMBEDDED_PERL \
		SUID \
		TLS

DISABLED_OPTIONS+=	\
		ALT_CONFIG_PREFIX \
		AUTH_RADIUS \
		AUTH_SASL \
		CONTENT_SCAN \
		DCC \
		DEBUG \
		EXIMON \
		KAS \
		MYSQL \
		OPENLDAP \
		PGSQL \
		READLINE \
		SASLAUTHD \
		SA_EXIM \
		SPF \
		SQLITE \
		SRS \
		SRS_ALT \
		TCP_WRAPPERS \
		WISHLIST \
		XCLIENT

ALL_OPTIONS=	${ENABLED_OPTIONS} \
		${DISABLED_OPTIONS}

.if !target(show-options-list)

_SELECTED_OPTIONS_ENV=
.for option in ${ENABLED_OPTIONS} ${DISABLED_OPTIONS}
.if !defined($(option))
_SELECTED_OPTIONS_ENV+= $(option)=$(option)
.else
_SELECTED_OPTIONS_ENV+=	$(option)=$($(option))
.endif
.endfor

show-options-list:
	@${ECHO_CMD} OPTIONS+= \\ 
	@for option in ${ALL_OPTIONS:O:u}; do \
		_txt=$$(${_SELECTED_OPTIONS_ENV} && \
			eval ${ECHO_CMD} $$\{$${option}\}); \
		if ${ECHO_CMD} ${ENABLED_OPTIONS} |${GREP} -wq $${option}; \
		then \
			_flag=on; \
		else \
			_flag=off; \
		fi; \
		${PRINTF} "\t $${option} \"$${_txt}\" $${_flag} \\"; \
		${ECHO_CMD}; \
	done
.endif

.if !target(show-variables-list)
show-variables-list:
	@for option in ${ALL_OPTIONS}; do \
	if ${ECHO_CMD} ${ENABLED_OPTIONS} |${GREP} -wq $${option}; \
	then \
		${ECHO_CMD} "WITH_$${option}=yes"; \
	else \
		${ECHO_CMD} "WITHOUT_$${option}=yes"; \
	fi; \
	done
.endif

.include "options"