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                        REBUILD_TCPSERVER=y
                ]
    )

    case $REBUILD_TCPSERVER in
      1*|y*|Y*)
        AC_MSG_RESULT(yes)
        REBUILD_TCPSERVER=1
        AC_DEFINE_UNQUOTED(REBUILD_TCPSERVER,$REBUILD_TCPSERVER,"")
        ;;
      *)
        AC_MSG_RESULT(no)
        ;;
    esac


    relay_clear_minutes="180"
    AC_ARG_ENABLE(relay-clear-minutes,
        [  --enable-relay-clear-minutes=#    Expire time for roaming users after pop authentication [180].],
        relay_clear_minutes="$enableval",
    )

    AC_DEFINE_UNQUOTED(RELAY_CLEAR_MINUTES,$relay_clear_minutes,"")


    open_smtp_cur="$vpopmaildir/etc/open-smtp"
    open_smtp_tmp="$vpopmaildir/etc/open-smtp.tmp"
    open_smtp_lok="$vpopmaildir/etc/open-smtp.lock"
    AC_DEFINE_UNQUOTED(OPEN_SMTP_CUR_FILE,"$open_smtp_cur","")
    AC_DEFINE_UNQUOTED(OPEN_SMTP_TMP_FILE,"$open_smtp_tmp","")
    AC_DEFINE_UNQUOTED(OPEN_SMTP_LOK_FILE,"$open_smtp_lok","")
    ;;
  *)
    AC_MSG_RESULT(no)
    ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether learn-passwords is enabled)
AC_ARG_ENABLE(learn-passwords,
        [  --enable-learn-passwords   If no password is stored for a user, learn it the first time they authenticate.],
        ENABLE_LEARN_PASSWORDS=$enableval,
                [
                        ENABLE_LEARN_PASSWORDS=n
                ]
)

case $ENABLE_LEARN_PASSWORDS in
  1*|y*|Y*)
      AC_MSG_RESULT(yes)
      ENABLE_LEARN_PASSWORDS=1
      AC_DEFINE_UNQUOTED(ENABLE_LEARN_PASSWORDS,$ENABLE_LEARN_PASSWORDS,"")
      ;;
  *)
      AC_MSG_RESULT(no)
      ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether md5-passwords is enabled)
AC_ARG_ENABLE(md5-passwords,
        [  --disable-md5-passwords    Use DES crypt() instead of MD5 encryption for passwords.],
        ENABLE_MD5_PASSWORDS=$enableval,
                [
                        ENABLE_MD5_PASSWORDS=y
                ]
)

case $ENABLE_MD5_PASSWORDS in
  1*|y*|Y*)
      AC_MSG_RESULT(yes)
      ENABLE_MD5_PASSWORDS=1
      AC_DEFINE_UNQUOTED(MD5_PASSWORDS,$ENABLE_MD5_PASSWORDS,"")
      ;;
  *)
      AC_MSG_RESULT(no)
      ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether file-locking is enabled)
AC_ARG_ENABLE(file-locking,
        [  --disable-file-locking     Don't use file locking.],
        FILE_LOCKING=$enableval,
                [
                        FILE_LOCKING=y
                ]
)

case $FILE_LOCKING in
  1*|y*|Y*)
      AC_MSG_RESULT(yes)
      FILE_LOCKING=1
      AC_DEFINE_UNQUOTED(FILE_LOCKING,$FILE_LOCKING,"")
      ;;
  *)
      AC_MSG_RESULT(no)
      ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether file-sync is enabled)
AC_ARG_ENABLE(file-sync,
        [  --enable-file-sync         Enable file sync after each message is delivered.],
        FILE_SYNC=$enableval,
                [
                        FILE_SYNC=n
                ]
)

case $FILE_SYNC in
  1*|y*|Y*)
      AC_MSG_RESULT(yes)
      FILE_SYNC=1
      AC_DEFINE_UNQUOTED(FILE_SYNC,$FILE_SYNC,"")
      ;;
  *)
      AC_MSG_RESULT(no)
      ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether make-seekable is enabled)
AC_ARG_ENABLE(make-seekable,
        [  --disable-make-seekable    Don't try to make input to vdelivermail seekable.],
        MAKE_SEEKABLE=$enableval,
                [
                        MAKE_SEEKABLE=y
                ]
)

case $MAKE_SEEKABLE in
  1*|y*|Y*)
      AC_MSG_RESULT(yes)
      MAKE_SEEKABLE=1
      AC_DEFINE_UNQUOTED(MAKE_SEEKABLE,$MAKE_SEEKABLE,"")
      ;;
  *)
      AC_MSG_RESULT(no)
      ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether clear-passwd is enabled)
AC_ARG_ENABLE(clear-passwd,
        [  --disable-clear-passwd     Don't store a cleartext version of the password in addition to the encrypted version.],
        CLEAR_PASS=$enableval,
                [
                        CLEAR_PASS=y
                ]
)

case $CLEAR_PASS in
  1*|y*|Y*)
      AC_MSG_RESULT(yes)
      CLEAR_PASS=1
      AC_DEFINE_UNQUOTED(CLEAR_PASS,$CLEAR_PASS,"")
      ;;
  *)
      AC_MSG_RESULT(no)
      ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether user-big-dir is enabled)
AC_ARG_ENABLE(users-big-dir,
        [  --disable-users-big-dir    Disable hashing of user directories.],
        USERS_BIG_DIR=$enableval,
                [
                        USERS_BIG_DIR=y
                ]
)

case $USERS_BIG_DIR in
  1*|y*|Y*)
      AC_MSG_RESULT(yes)
      USERS_BIG_DIR=1
      AC_DEFINE_UNQUOTED(USERS_BIG_DIR,$USERS_BIG_DIR,"")
      ;;
  *)
      AC_MSG_RESULT(no)
      ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether sqwebmail-pass is enabled)
AC_ARG_ENABLE(sqwebmail-pass,
        [  --enable-sqwebmail-pass    Store a copy of the user's password in the the user's maildir for use by pre-v3 sqwebmail.],
        ENABLE_SQWEBMAIL_PASS=$enableval,
                [
                        ENABLE_SQWEBMAIL_PASS=n
                ]
)

case $ENABLE_SQWEBMAIL_PASS in
  1*|y*|Y*)
          AC_MSG_RESULT(yes)
          ENABLE_SQWEBMAIL_PASS=1
          AC_DEFINE_UNQUOTED(SQWEBMAIL_PASS,$ENABLE_SQWEBMAIL_PASS,"")
          ;;
  *)
          AC_MSG_RESULT(no)
          ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether qmail-ext is enabled)
AC_ARG_ENABLE(qmail-ext,
        [  --enable-qmail-ext         Enable qmail email address extension support.],
        QMAIL_EXT=$enableval,
                [
                        QMAIL_EXT=n
                ]
)

case $QMAIL_EXT in
  1*|y*|Y*)
        AC_MSG_RESULT(yes)
        QMAIL_EXT=1
        AC_DEFINE_UNQUOTED(QMAIL_EXT,$QMAIL_EXT,"")
        ;;
  *)
        AC_MSG_RESULT(no)
        ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether ip-alias-domains is enabled)
AC_ARG_ENABLE(ip-alias-domains,
        [  --enable-ip-alias-domains  Enable mapping of default domain via reverse ip lookup table.],
        IPALIAS=$enableval,
                [
                        IPALIAS=no
                ]
)

case $IPALIAS in
  1*|y*|Y*)
        AC_MSG_RESULT(yes)
        IPALIAS=1
        AC_DEFINE_UNQUOTED(IP_ALIAS_DOMAINS,$IPALIAS,"")
        ;;
  *)
        AC_MSG_RESULT(no)
        ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether domainquotas is enabled)
AC_ARG_ENABLE(domainquotas,
        [  --enable-domainquotas      Enable non-system domain quotas. See README.quotas for more info.],
        ENABLE_DOMAIN_QUOTAS=$enableval,
                [
                        ENABLE_DOMAIN_QUOTAS=0
                ]
)

case $ENABLE_DOMAIN_QUOTAS in
  0*|n*|N*)
      AC_MSG_RESULT(no)
      ;;
  *)
      AC_MSG_RESULT(yes)
      ENABLE_DOMAIN_QUOTAS=1
      AC_DEFINE_UNQUOTED(DOMAIN_QUOTAS,$ENABLE_DOMAIN_QUOTAS,"")
      ;;
esac

#----------------------------------------------------------------------

vlimits_default="$vpopmaildir/etc/vlimits.default"

AC_DEFINE_UNQUOTED(VLIMITS_DEFAULT_FILE,"$vlimits_default","")

#----------------------------------------------------------------------

domains_dir="domains"

AC_ARG_ENABLE(domains-dir,
    [  --enable-domains-dir=TEXT  Set domains directory name for ~vpopmail/[domains]/user/.],
    domains_dir="$enableval",
)

AC_DEFINE_UNQUOTED(DOMAINS_DIR,"$domains_dir","")
AC_SUBST(domains_dir)

#----------------------------------------------------------------------

# cant contain this following block in the mysql section, as it is also used by oracle
incdir=""
for f in /usr/local/mysql/include/mysql /usr/local/mysql/include /usr/local/include/mysql /usr/include/mysql
do
    if test -d $f
    then
        incdir=$f
        break
    fi
done

AC_ARG_ENABLE(incdir,
    [  --enable-incdir=DIR        Your MySQL/Oracle 'include' directory.],
    incdir="$enableval",
)

libdir=""
for f in /usr/local/mysql/lib/mysql /usr/local/mysql/lib  /usr/local/lib/mysql /usr/lib/mysql
do
    if test -d $f
    then
        libdir=$f
        break
    fi
done

AC_ARG_ENABLE(libdir,
    [  --enable-libdir=DIR        Your MySQL/Oracle 'lib' directory.],
    libdir="$enableval",
)

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether an auth module has been specified)

#default to use CDB authentication
AUTH_MODULE="cdb"

AC_ARG_ENABLE(auth-module,
    [  --enable-auth-module=MOD   Nominate how to store the vpopmail account information (cdb (default), mysql, pgsql, ldap, oracle, sybase, or activedir).],
    AUTH_MODULE="$enableval",
)

case $AUTH_MODULE in

  cd*|Cd*|CD*)
    AC_MSG_RESULT([no, so default to cdb])
    USE_CDB=1
    USE_SQL=0
    rm -rf vauth.c
    ln -sf vcdb.c vauth.c
    AC_DEFINE_UNQUOTED(USE_CDB,$USE_CDB,"")
    authlib=""
    AC_SUBST(authlib)
    auth_inc="-Icdb"
    AC_SUBST(auth_inc)
    ;;

  my*|My*|MY*)
    AC_MSG_RESULT(mysql)
    USE_CDB=0
    USE_SQL=1
    USE_MYSQL=1
    rm -rf vauth.c
    ln -sf vmysql.c vauth.c
    AC_SUBST(USE_MYSQL)
    AC_DEFINE_UNQUOTED(USE_SQL,$USE_SQL,"")
    AC_DEFINE_UNQUOTED(USE_MYSQL,$USE_MYSQL,"")
    #AC_CHECK_LIB(m,floor)
    #AC_CHECK_LIB(z,compress)

    if test "$incdir" = ""
    then
        AC_MSG_ERROR([Unable to find your MySQL inc dir, specify --enable-incdir.])
    fi

    if test ! -d "$incdir"
    then
       AC_MSG_ERROR([Unable to find your MySQL inc dir, specify --enable-incdir.])
    fi

    auth_inc="-I$incdir"
    AC_SUBST(auth_inc)

    if test "$libdir" = ""
    then
        AC_MSG_ERROR([Unable to find your MySQL lib dir, specify --enable-libdir.])
    fi

    if test ! -d "$libdir"
    then
        AC_MSG_ERROR([Unable to find your MySQL lib dir, specify --enable-libdir.])
    fi

    auth_libs="-L$libdir $extralibflags -lmysqlclient -lz -lm"
    AC_SUBST(auth_libs)
    ;;

  pg*|Pg*|PG*)
    AC_MSG_RESULT(pgsql)

    pgconfig=""
    for f in /usr/local/pgsql/bin/pg_config /usr/local/bin/pg_config /usr/bin/pg_config
    do
        if test -f $f
        then
            pgconfig=$f
            break
        fi
    done

    if test "$pgconfig" = ""
    then
        AC_MSG_ERROR([Unable to locate the pg_config program.])
    fi

    if test ! -f "$pgconfig"
    then
        AC_MSG_ERROR([Unable to locate the pg_config program.])
    fi

    USE_CDB=0
    USE_SQL=1
    USE_POSTGRES=1
    rm -rf vauth.c
    ln -sf vpgsql.c vauth.c
    AC_DEFINE_UNQUOTED(USE_SQL,$USE_SQL,"")
    AC_DEFINE_UNQUOTED(USE_POSTGRES,$USE_POSTGRES,"")

    auth_libs="-L`$pgconfig --libdir` -lpq "
    AC_SUBST(auth_libs)
    auth_inc="-I`$pgconfig --includedir`"
    AC_SUBST(auth_inc)
    ;;

  ld*|Ld*|LD*)
    AC_MSG_RESULT(ldap)
    USE_CDB=0
    USE_SQL=0
    USE_LDAP=1
    rm -rf vauth.c
    ln -sf vldap.c vauth.c
    AC_DEFINE_UNQUOTED(USE_LDAP,$USE_LDAP,"")
    auth_libs="-L/usr/local/lib -lldap -llber -lresolv"
    AC_SUBST(auth_libs)
    auth_inc="-I/usr/local/include"
    AC_SUBST(auth_inc)
    ;;

  or*|Or*|OR*)
    AC_MSG_RESULT(oracle)
    USE_CDB=0
    USE_SQL=1
    USE_ORACLE=1
    rm -rf vauth.c
    ln -sf voracle.c vauth.c
    AC_DEFINE_UNQUOTED(USE_SQL,$USE_SQL,"")
    AC_DEFINE_UNQUOTED(USE_ORACLE,$USE_ORACLE,"")
    auth_libs="-L$libdir -lclntsh -lclient8"
    AC_SUBST(auth_libs)
    auth_inc="-I$incdir"
    AC_SUBST(auth_inc)
    ;;

  sy*|Sy*|SY*)
    AC_MSG_RESULT(sybase)
    USE_CDB=0
    USE_SQL=1
    USE_SYBASE=1
    rm -rf vauth.c
    ln -sf vsybase.c vauth.c
    AC_DEFINE_UNQUOTED(USE_SQL,$USE_SQL,"")
    AC_DEFINE_UNQUOTED(USE_SYBASE,$USE_SYBASE,"")
    auth_libs="-L/opt/sybase/lib -lsybdb -lm"
    AC_SUBST(auth_libs)
    auth_inc="-I/opt/sybase/include"
    AC_SUBST(auth_inc)
    ;;

  ac*|Ac*|AC*)
    AC_MSG_RESULT(activedir)
    USE_CDB=0
    USE_SQL=0
    USE_ACTIVE_DIR=1
    rm -rf vauth.c
    ln -sf vactivedir.c vauth.c
    AC_DEFINE_UNQUOTED(USE_ACTIVE_DIR,$USE_ACTIVE_DIR,"")
    authlib=""
    AC_SUBST(authlib)
    auth_inc=""
    AC_SUBST(auth_inc)
    ;;

  *)
    AC_MSG_RESULT(no)
    AC_MSG_ERROR(A valid auth-module was not selected. Please specify using --enable-auth-module=cdb|mysql|pgsql|ldap|oracle|sybase|activedir)
    ;;

esac


#----------------------------------------------------------------------

AC_MSG_CHECKING(whether system accounts have been enabled)
AC_ARG_ENABLE(passwd,
        [  --enable-passwd            Enable /etc/passwd (or shadow) accounts in addition to virtual domains.],
        ENABLE_PASSWD=$enableval,
                [
                        ENABLE_PASSWD=no
                ]
)

case $ENABLE_PASSWD in
  1*|y*|Y*)
        AC_MSG_RESULT(yes)
        ENABLE_PASSWD=1

        AC_CHECK_HEADERS(shadow.h)
        HAS_SHADOW_H=0
        AC_CHECK_HEADER(shadow.h,
                [
                        HAS_SHADOW_H=1;
                ] )
        # if test $HAS_SHADOW_H = 1
        # then
        #        AC_CHECK_LIB(shadow, setspent)
        # fi
                AC_DEFINE_UNQUOTED(ENABLE_PASSWD,$ENABLE_PASSWD,"")
        ;;
  *)
        AC_MSG_RESULT(no)
        ENABLE_PASSWD=0
        ;;
esac

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether /etc/shadow exists)
if test -f /etc/shadow
then
        AC_MSG_RESULT(yes)
        HAS_SHADOW=1
        AC_DEFINE_UNQUOTED(HAS_SHADOW,$HAS_SHADOW,"")
else
        AC_MSG_RESULT(no)
fi

#----------------------------------------------------------------------

AC_MSG_CHECKING(whether logging is enabled)
AC_ARG_ENABLE(logging,
        [  --enable-logging=OPT       Log to syslog: n=nothing, e=errors only (default), y=all attempts, p=errors with passwords, v=verbose (all attempts, with passwords).],
        ENABLE_LOGGING=$enableval,
                [
                        ENABLE_LOGGING=e
                ]
)

case $ENABLE_LOGGING in
  1*|y*|Y*)
      AC_MSG_RESULT(all attempts)
      ENABLE_LOGGING=1
          AC_DEFINE_UNQUOTED(ENABLE_LOGGING,$ENABLE_LOGGING,"")
      ;;
  e*|E*)
      AC_MSG_RESULT(errors only)
      ENABLE_LOGGING=2