AC_INIT
AC_CONFIG_SRCDIR([src/piler.c])
AC_CONFIG_HEADER(piler-config.h)

CONFIGURE_PARAMS_FILE=params.h

PARAMS=$@

dnl Checks for programs.
AC_PROG_CC
dnl AM_PROG_CC_STDC
AC_PROG_MAKE_SET
AC_PROG_INSTALL

dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(sys/socket.h sys/time.h syslog.h signal.h ctype.h unistd.h)


AC_SUBST(defs)
AC_SUBST(INCDIR)
AC_SUBST(LIBDIR)
AC_SUBST(OBJS)
AC_SUBST(RUNNING_USER)
AC_SUBST(SUBDIRS)
AC_SUBST(MAKE)
AC_SUBST(mysql_includes)
AC_SUBST(mysql_libs)
AC_SUBST(mysql_obj)
AC_SUBST(libclamav_extra_libs)
AC_SUBST(id_bin)
AC_SUBST(iv)

have_libclamav="no"
have_libtool="no"
have_clamd="no"

have_antivirus="no"
have_mysql="no"
have_tre="no"
have_zlib="no"


have_static_build="no"

antispam_libs="-lz -lm -ldl -lcrypto"
defs=""
objs=""
user_obj=""
mysql_obj=""
os=`uname -s`

id_bin="id"

MAKE="make"

if test "$os" = "SunOS"; then MAKE="gmake"; fi

rm -f $CONFIGURE_PARAMS_FILE

if test "$os" = "SunOS"; then
   echo "#define CONFIGURE_PARAMS \"Build Date: "`date`'\\n" \\' > $CONFIGURE_PARAMS_FILE
else
   echo "#define CONFIGURE_PARAMS \"Build Date: "`date`"\\n\" \\" > $CONFIGURE_PARAMS_FILE
fi
echo "\"Configure command: ./configure $PARAMS\"" >> $CONFIGURE_PARAMS_FILE


dnl SUBDIRS="src etc util perl init.d templates history contrib/stat"
SUBDIRS="src etc util init.d test"


dnl static build

AC_ARG_ENABLE(static-build,
          [  --enable-static-build   build statically linked executables (default: dynamically linked)], have_static_build=$enableval, have_static_build="no")


dnl clamd


AC_ARG_ENABLE(clamd,
	[  --enable-clamd          build clamd antivirus support], want_clamd=$enableval, want_clamd="no")
   if test "$want_clamd" = "yes"; then
      have_clamd="yes"
      have_antivirus="yes"
   fi


AC_ARG_ENABLE(memcached,
        [  --enable-memcached      build memcached support], want_memcached=$enableval, want_memcached="no")


dnl math library

AC_CHECK_HEADERS(math.h, have_math=yes, have_math=no)
AC_CHECK_LIB([m],[fabs],[AC_CHECK_LIB(m, fabs)],[have_math=yes],[""; exit])ac_cv_lib_m=ac_cv_lib_m_main

dnl openssl library

AC_CHECK_HEADERS(openssl/sha.h, have_crypto=yes, have_crypto=no)
AC_CHECK_LIB([crypto],[SHA256_Init],[AC_CHECK_LIB(crypto, SHA256_Init, have_crypto=yes, echo "libcrypto is not found"; have_crypto=no)],[],[])ac_cv_lib_crypto=ac_cv_lib_crypto_main

if test "$have_crypto" = "no"; then
   echo "please install openssl developer package"
   exit 1
fi

dnl TRE library

AC_CHECK_HEADERS(tre/tre.h, have_tre=yes, echo "tre.h is not found")
AC_CHECK_LIB([tre],[main],[AC_CHECK_LIB(tre, regcomp, have_tre=yes, echo "libtre.so is not found"; have_tre=no)],[],[])ac_cv_lib_tre=ac_cv_lib_tre_main

if test "$have_tre" = "no"; then
   echo "please install the tre development packages"
   exit 1;
fi



dnl zlib

AC_CHECK_HEADERS(zlib.h, have_zlib=yes, echo "zlib.h is not found")
AC_CHECK_LIB([z],[main],[AC_CHECK_LIB(z, compress, have_zlib=yes, echo "libz.so is not found"; have_zlib=no)],[],[])ac_cv_lib_z=ac_cv_lib_z_main

if test "$have_zlib" = "no"; then
   echo "please install the zlib development packages"
   exit 1;
fi


AC_CHECK_PROG(MYSQL_CONFIG, mysql_config, yes)

if test x$MYSQL_CONFIG = xyes; then
   have_mysql="yes"
fi

if test "$have_mysql" = "yes"; then

   mysql_includes=`mysql_config --cflags`
   mysql_libs=`mysql_config --libs_r`

   AC_CHECK_LIB([guide],[main],[AC_CHECK_LIB(guide, _intel_fast_memset, have_icc_guide=yes, have_icc_guide=no)],[],[])ac_cv_lib_guide=ac_cv_lib_guide_main

else
   echo "MySQL support is not found"
   exit 1;
fi



dnl user running piler

AC_ARG_WITH(piler-user,
    [  --with-piler-user=username      what user the piler daemon shall be run as],
    [ RUNNING_USER=$withval ],
    [ RUNNING_USER=piler ]
    )



dnl configure config directory

cfg_dir=`echo $sysconfdir | grep prefix`

if test -n "$cfg_dir"; then
    if test "$prefix" = "NONE"
    then
        cfg_dir="$ac_default_prefix/etc"
        my_prefix=$ac_default_prefix
    else
        cfg_dir="$prefix/etc"
        my_prefix=$prefix
    fi
else
    cfg_dir="$sysconfdir"
fi

CFGDIR=$cfg_dir
AC_SUBST(CFGDIR)
AC_DEFINE_UNQUOTED(CONFDIR,"$cfg_dir",[where to look for the config file])


dnl configure data directory

data_dir=`echo $localstatedir | grep prefix`

if test -n "$data_dir"; then
    if test "$prefix" = "NONE"
    then
        data_dir="$ac_default_prefix/var"
    else
        data_dir="$prefix/var"
    fi
else
    data_dir="$localstatedir"
fi

DATADIR=$data_dir
AC_SUBST(DATADIR)
AC_DEFINE_UNQUOTED(DATADIR,"$data_dir",[where to look for the data files])

AC_DEFINE_UNQUOTED(VIRUS_TEMPLATE, "$my_prefix/share/clapf/template.virus", [where the virus template is])
AC_DEFINE_UNQUOTED(ZOMBIE_NET_REGEX, "$my_prefix/share/clapf/zombienets.regex", [where the virus template is])




dnl let us know if we are building on FreeBSD

if test "$os" = "FreeBSD"; then
   defs="$defs -DFREEBSD"
fi

if test "$os" = "Linux"; then
   defs="$defs -D_GNU_SOURCE"
fi

if test "$os" = "SunOS"; then
   AC_DEFINE(HAVE_DAEMON, 0, [daemon() support])
   sunos_libs="-lnsl -lsocket"

   if test -x /usr/xpg4/bin/id; then id_bin="/usr/xpg4/bin/id"; fi
fi

if test `echo $os | grep -c CYGWIN` -eq 1; then
   defs="$defs -DCYGWIN"
   AC_DEFINE_UNQUOTED(ZOMBIE_NET_REGEX, "zombienets.regex", [where the virus template is])
fi

dnl whether we have antivirus support

if test "$have_clamd" = "yes" ; then
   defs="$defs -DHAVE_ANTIVIRUS"
   objs="$objs avir.o"
fi

echo; echo

if test "$have_clamd" = "yes"; then
   echo "clamd support: yes"
   objs="$objs clamd.o"
   defs="$defs -DHAVE_CLAMD"
fi

if test "$want_memcached" = "yes"; then
   echo "memcached support: yes"
   objs="$objs memc.o"
   defs="$defs -DHAVE_MEMCACHED"
fi

echo "run as user: $RUNNING_USER"

if test "$have_static_build" = "yes"; then
   echo "link mode: static"
   static="-static"
else
   echo "link mode: dynamic"
fi

if test "$have_tre" = "yes"; then
   echo "tre library: yes"
   defs="$defs -DHAVE_TRE"
   antispam_libs="$antispam_libs -ltre"
fi

if test "$have_mysql" = "yes"; then
   defs="$defs -DNEED_MYSQL"
fi

if test "$have_icc_guide" = "yes" && test "$have_mysql" = "yes"; then
   mysql_libs="$mysql_libs -lguide"
fi


id -u $RUNNING_USER 2>/dev/null 1>/dev/null
if test $? -eq 1; then echo "the user \"$RUNNING_USER\" does not exists, please create it, first with adduser..."; exit 1; fi

if test "$have_clamd" = "no" ; then
   echo; echo
   echo "You have not selected any antivirus support."
   echo "piler will not protect you from hostile code coming in e-mail"
fi

echo "piler data directory: $data_dir/piler"

iv=`util/gen-iv.pl`

echo; echo

CFLAGS="$static -O2 -Wall -g"
LIBS="$antispam_libs $sunos_libs "
OBJS="dirs.o base64.o misc.o counters.o cfg.o sig.o decoder.o list.o parser.o parser_utils.o rules.o session.o message.o attachment.o digest.o store.o archive.o tai.o import.o imap.o $objs"

AC_CONFIG_FILES([Makefile src/Makefile etc/Makefile util/Makefile init.d/Makefile test/Makefile])
AC_OUTPUT