#
# 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  = "Enable 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   = "Restrict the set of 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"
DISABLE_D_OPT   = "Disable macros overrides using option -D"
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"
SO_1024     = "Build with Spamooborona-1024 local scan"
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 \
        DISABLE_D_OPT \
        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 \
        SO_1024 \
        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"