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(sql_includes)
AC_SUBST(sql_libs)
AC_SUBST(sql_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_psql="no"
have_tre="no"
have_zip="no"
have_zlib="no"
have_tcpwrappers="no"
have_tweak_sent_time="no"

pdftotext="no"
catdoc="no"
catppt="no"
ppthtml="no"
xls2csv="no"
unrtf="no"
tnef="no"

timeout_binary=""

have_static_build="no"
have_compat_storage_layout="no"

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

id_bin="id"

MAKE="make"

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

rm -f $CONFIGURE_PARAMS_FILE

LDD_VERSION=`ldd --version | head -1`
GCC_VERSION=''

if test -f `which gcc`; then gcc -v 2> aa; GCC_VERSION=`tail -1 aa`; rm -f aa; fi

if test "$os" = "SunOS"; then
   echo "#define CONFIGURE_PARAMS \"Build Date: "`date`'\\n" \\' > $CONFIGURE_PARAMS_FILE
else
   echo "#define CONFIGURE_PARAMS \"Build Date: "`date`"\\nldd version: $LDD_VERSION\\ngcc version: $GCC_VERSION\\nOS: "`uname -a`"\n"\" \\ > $CONFIGURE_PARAMS_FILE
fi
echo "\"Configure command: ./configure $PARAMS\"" >> $CONFIGURE_PARAMS_FILE


SUBDIRS="src etc util init.d systemd unit_tests webui"


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

AC_ARG_ENABLE(compat-layout,
          [  --enable-compat-layout  support for older storage layout (default: no)], have_compat_storage_layout=$enableval, have_compat_storage_layout="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 tcpwrappers library

AC_CHECK_HEADERS(tcpd.h, have_tcpwrappers=yes, echo "tcpd.h is not found")
AC_CHECK_LIB([wrap],[hosts_access],[AC_CHECK_LIB(wrap, hosts_access, have_tcpwrappers=yes, echo "libwrap is not found"; have_tcpwrappers=no)],[],[])ac_cv_lib_wrap=ac_cv_lib_wrap_main

if test "$have_tcpwrappers" = "no"; then
   echo "can't find either tcpd.h or libwrap. Tcpwrappers support is disabled";
fi


AC_ARG_ENABLE(tweak-sent-time,
	[  --tweak-sent-time       tweak sent time], have_tweak_sent_time=$enableval, have_tweak_sent_time="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

AC_CHECK_HEADERS(openssl/ssl.h, have_ssl=yes, have_ssl=no)
AC_CHECK_LIB([ssl],[SSL_write],[AC_CHECK_LIB(ssl, SSL_write, have_ssl=yes, echo "libssl is not found"; have_ssl=no)],[],[])ac_cv_lib_ssl=ac_cv_lib_ssl_main

if test "$have_crypto" = "no" || test "$have_ssl" = "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 libzip

AC_CHECK_HEADERS(zip.h, have_zip=yes, echo "zip.h is not found")
AC_CHECK_LIB([zip],[main],[AC_CHECK_LIB(zip, zip_open, have_zip=yes, echo "libzip.so is not found"; have_zip=no)],[],[])ac_cv_lib_zip=ac_cv_lib_zip_main


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_ARG_WITH(database,
[  --with-database[[=mysql]]  select the used database, currently mysql only (default: none)],[
   if test "$withval" != "no" -a "$withval" != "yes"; then
      DATABASE=$withval
   fi


   if test "$withval" = "mysql"; then

      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

         sql_includes=`mysql_config --cflags`
         sql_libs=`mysql_config --libs_r`
         sql_obj="mysql.o"

         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
   fi


   if test "$withval" = "mariadb"; then

      AC_CHECK_PROG(MYSQL_CONFIG, mariadb_config, yes)

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

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

         sql_includes=`mariadb_config --cflags`
         sql_libs=`mariadb_config --libs_r`
         sql_obj="mysql.o"

      else
         echo "mariadb_config is not found, please install \"MariaDB Client Library for C 1.0.0 Stable\", see https://downloads.mariadb.org/client-native/1.0.0/"
         exit 1;
      fi
   fi


   if test "$withval" = "psql"; then

      AC_CHECK_PROG(PSQL_CONFIG, pg_config, yes)

      if test x$PSQL_CONFIG = xyes; then
         have_psql="yes"
      fi

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

         sql_includes="-I`pg_config --includedir`"
         sql_libs="-L`pg_config --libdir`"
         sql_obj="psql.o"

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

])


dnl timeout binary

if test z`which timeout 2>/dev/null` != "z"; then
   timeout_binary=`which timeout`
   AC_DEFINE_UNQUOTED(TIMEOUT_BINARY, "$timeout_binary", [timeout binary])
fi


read -r version < VERSION
AC_DEFINE_UNQUOTED(VERSION, "$version")


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])


dnl configure libexec directory

libexec_dir=`echo $libexecdir | grep prefix`

if test -n "$libexec_dir"; then
    if test "$prefix" = "NONE"
    then
        libexec_dir="$ac_default_prefix/libexec"
    else
        libexec_dir="$prefix/libexec"
    fi
else
    libexec_dir="$libexecdir"
fi

LIBEXECDIR=$libexec_dir
AC_SUBST(LIBEXECDIR)
AC_DEFINE_UNQUOTED(LIBEXECDIR,"$libexec_dir",[where to look for the piler helpers])


dnl configure dataroot directory

dataroot_dir=`echo $datarootdir | grep prefix`

if test -n "$dataroot_dir"; then
    if test "$prefix" = "NONE"
    then
        dataroot_dir="$ac_default_prefix/share"
    else
        dataroot_dir="$prefix/share"
    fi
else
    dataroot_dir="$datarootdir"
fi


DATAROOTDIR=$dataroot_dir
AC_SUBST(DATAROOTDIR)
AC_DEFINE_UNQUOTED(DATAROOTDIR,"$dataroot_dir",[where to look for the share data files])



if test "$have_mysql" = "no" && test "$have_psql" = "no"; then
   echo
   echo "please specify the used database with --with-database=..."
   echo
   exit 1
fi


dnl let us know if we are building on FreeBSD

if test "$os" = "FreeBSD"; then
   defs="$defs -DFREEBSD"
   antispam_libs="-lz -lm -lcrypto -lssl -liconv"
   MAKE="gmake"
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

dnl whether we have antivirus support

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

echo; echo

echo "run as user: $RUNNING_USER"
echo "piler data directory: $data_dir/piler"

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

echo

if test "$have_compat_storage_layout" = "yes"; then
   echo "support for older storage layout: yes"
   AC_DEFINE_UNQUOTED(HAVE_SUPPORT_FOR_COMPAT_STORAGE_LAYOUT, 1, [compat storage layout support])
fi


if test "$have_mysql" = "yes"; then
   echo "database: mysql"
fi

if test "$have_psql" = "yes"; then
   echo "database: psql"
fi


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

if test "$have_zip" = "yes"; then
   echo "zip library: yes"
   AC_DEFINE_UNQUOTED(HAVE_ZIP, 1, [libzip support])
   antispam_libs="$antispam_libs -lzip"
else
   echo "zip library: no"
fi


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

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

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

if test "$have_psql" = "yes"; then
   defs="$defs -DNEED_PSQL"
fi

if test z`which pdftotext 2>/dev/null` != "z"; then
   pdftotext=`which pdftotext`
   AC_DEFINE_UNQUOTED(HAVE_PDFTOTEXT, "$pdftotext", [path to pdftotext])
fi

if test z`which catdoc 2>/dev/null` != "z"; then
   catdoc=`which catdoc`
   AC_DEFINE_UNQUOTED(HAVE_CATDOC, "$catdoc", [path to catdoc])
fi


if test z`which catppt 2>/dev/null` != "z"; then
   catppt=`which catppt`
   AC_DEFINE_UNQUOTED(HAVE_CATPPT, "$catppt", [path to catppt])
fi


if test z`which ppthtml 2>/dev/null` != "z"; then
   ppthtml=`which ppthtml`
   AC_DEFINE_UNQUOTED(HAVE_PPTHTML, "$ppthtml", [path to ppthtml])
fi


if test z`which xls2csv 2>/dev/null` != "z"; then
   xls2csv=`which xls2csv`
   AC_DEFINE_UNQUOTED(HAVE_XLS2CSV, "$xls2csv", [path to xls2csv])
fi


if test z`which unrtf 2>/dev/null` != "z"; then
   unrtf=`which unrtf`
   AC_DEFINE_UNQUOTED(HAVE_UNRTF, "$unrtf", [path to unrtf])
fi


if test z`which tnef 2>/dev/null` != "z"; then
   tnef=`which tnef`
   AC_DEFINE_UNQUOTED(HAVE_TNEF, "$tnef", [path to tnef])
fi


if test "$have_tweak_sent_time" = "yes"; then
   AC_DEFINE_UNQUOTED(HAVE_TWEAK_SENT_TIME, 1, [tweak sent time])
fi



echo
echo "pdftotext: $pdftotext"
echo "catdoc: $catdoc"
echo "catppt: $catppt"
echo "ppthtml: $ppthtml"
echo "xls2csv: $xls2csv"
echo "unrtf: $unrtf"
echo "tnef: $tnef"


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

echo; echo

gcc_version="$(gcc -dumpversion)"
extra_cflags=""
if [[ "${gcc_version:0:1}" -gt 6 ]]; then
   extra_cflags="-Wimplicit-fallthrough=2"
fi

CFLAGS="$static -std=c99 -O2 -fPIC -Wall -Wextra $extra_cflags -Wuninitialized -Wno-format-truncation -g"
LIBS="$antispam_libs $sunos_libs "
OBJS="dirs.o misc.o counters.o cfg.o sig.o decoder.o hash.o parser.o parser_utils.o rules.o smtp.o session.o bdat.o message.o attachment.o digest.o store.o archive.o tai.o import.o import_pilerexport.o import_maildir.o import_mailbox.o import_pop3.o import_imap.o imap.o pop3.o extract.o mydomains.o tokenizer.o screen.o $objs"

AC_CONFIG_FILES([Makefile src/Makefile etc/Makefile util/Makefile init.d/Makefile systemd/Makefile unit_tests/Makefile webui/Makefile contrib/imap/Makefile])
AC_OUTPUT

echo
echo
echo "IMPORTANT! If you upgrade, be sure to read http://www.mailpiler.org/wiki/current:upgrade"
echo
echo
