AC_INIT
AC_PREREQ(2.59)
AC_CANONICAL_TARGET([])
AM_INIT_AUTOMAKE(prelude-manager, 1.0.0)
AM_CONFIG_HEADER(config.h)
AM_DISABLE_STATIC

AM_MAINTAINER_MODE


dnl **********************************************************
dnl * Check required program.
dnl **********************************************************

AC_PROG_CPP
AC_PROG_CC
AC_PROG_INSTALL
AC_PROG_MAKE_SET


dnl **********************************************************
dnl * Setup GnuLib, libtool and libltdl.
dnl **********************************************************

gl_EARLY
AC_LIBTOOL_DLOPEN
AM_DISABLE_STATIC
AC_PROG_LIBTOOL


dnl **************************************************
dnl * Check for missing function replacement         *
dnl **************************************************

gl_SOURCE_BASE(libmissing)
gl_M4_BASE(libmissing/m4)
gl_INIT


dnl **************************************************
dnl * Check for libprelude                           *
dnl **************************************************

AM_PATH_LIBPRELUDE(0.9.21.3, ,
  AC_MSG_ERROR(Cannot find libprelude: Is libprelude-config in the path?), no)

dnl ***
dnl *** Can we use -Werror -Wmissing-braces for some checks ? ***
buggy_pthread_cppflags=""
AX_C_CHECK_FLAG(-Werror -Wno-missing-braces, , , buggy_pthread_cppflags="-Wno-missing-braces")


old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $buggy_pthread_cppflags"

AC_MSG_CHECKING(for buggy pthread mutex initializers)
AC_TRY_COMPILE(
[
#include <pthread.h>
],
[
static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
],
compile_ok="yes", compile_ok="no")

CFLAGS="$old_CFLAGS"

if test x$compile_ok = xyes; then
   AC_MSG_RESULT(no)
else
   AC_MSG_RESULT(yes)
   buggy_pthread_initializers="yes"
fi


dnl **************************************************
dnl * Check for GnuTLS.                              *
dnl **************************************************
GNUTLS_MIN_VERSION=1.0.17

PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= $GNUTLS_MIN_VERSION], [],
                  [AM_PATH_LIBGNUTLS($GNUTLS_MIN_VERSION, [], [AC_MSG_ERROR($LIBGNUTLS_PKG_ERRORS)])])

old_LIBS=$LIBS
old_CPPFLAGS=$CPPFLAGS
LIBS="$LIBGNUTLS_LIBS"
CPPFLAGS="$LIBGNUTLS_CFLAGS"

AC_CHECK_LIB(gnutls, gnutls_priority_init, gnutls_string_priority=yes, gnutls_string_priority=no)
if test x$gnutls_string_priority = xyes; then
        AC_CHECK_LIB(gnutls, gnutls_priority_set, AC_DEFINE_UNQUOTED(HAVE_GNUTLS_STRING_PRIORITY, , Define whether GnuTLS provide priority parsing),)
fi

AC_CHECK_HEADER(gnutls/gnutls.h, ,
                AC_MSG_ERROR("libgnutls development headers are required to build libprelude"))

CPPFLAGS=$old_CPPFLAGS
LIBS=$old_LIBS



dnl **************************************************
dnl * Check for libpreludedb                         *
dnl **************************************************

AM_PATH_LIBPRELUDEDB(0.9.4, enable_libpreludedb=yes, enable_libpreludedb=no, no)
AM_CONDITIONAL(HAVE_LIBPRELUDEDB, test x$enable_libpreludedb = xyes)
if test x$enable_libpreludedb = xyes; then
        AC_DEFINE_UNQUOTED(HAVE_LIBPRELUDEDB, , Define whether libpreludedb is available)
fi



dnl ********************************************************
dnl * Check for the Libxml2                                *
dnl ********************************************************

AM_PATH_XML2(, enable_xmlmod=yes, enable_xmlmod=no)
AM_CONDITIONAL(HAVE_XML2, test x$enable_xmlmod = xyes)



dnl **************************************************
dnl * TCP WRAPPER CHECK                              *
dnl **************************************************

AC_ARG_WITH(libwrap-prefix, AC_HELP_STRING(--with-libwrap-prefix@<:@=PFX@:>@,
                                    Compile in libwrap (tcp_wrappers) support @<:@default=auto@:>@.),
            libwrap_required=true, with_libwrap="yes")

if test x$with_libwrap != xno; then
   LIBWRAP_INCLUDE="tcpd.h"

   if test -d $with_libwrap; then
      LIBWRAP_PATH="$with_libwrap"
      LIBWRAP_INCLUDE="$with_libwrap/include/tcpd.h"
   fi

   AC_CHECK_HEADER($LIBWRAP_INCLUDE, with_libwrap=yes, with_libwrap=no)

   if test x$with_libwrap = xyes; then
      AC_CHECK_LIB(wrap, request_init, LIBWRAP_LIBS="-L$LIBWRAP_PATH/lib -lwrap")
      AC_CHECK_LIB(nsl, yp_get_default_domain, LIBNSL_LIBS="-lnsl")

      AC_MSG_CHECKING(whether -lwrap require -lnsl)
      old_LIBS=$LIBS
      LIBS=$LIBWRAP_LIBS

      AC_TRY_LINK([extern int hosts_access; int allow_severity, deny_severity;],
                  [return hosts_access;], with_libwrap=yes, with_libwrap=no)

      require_nsl="no"
      if test x$with_libwrap = xno; then
         LIBS="$LIBNSL_LIBS $LIBS"
         AC_TRY_LINK([extern int hosts_access; int allow_severity, deny_severity;],
                     [return hosts_access;], [with_libwrap=yes require_nsl="yes"], with_libwrap=no)
      fi

      AC_MSG_RESULT($require_nsl)
   fi

   LIBWRAP_LIBS=$LIBS
   LIBS=$old_LIBS

   if test x$libwrap_required = xtrue && test x$with_libwrap = xno; then
      AC_MSG_ERROR([Could not find libwrap library])
   fi
fi

if test x$with_libwrap = xyes; then
   AC_DEFINE_UNQUOTED(HAVE_TCP_WRAPPERS, [], Define if tcp wrapper support is enabled)
fi



dnl ********************************************************
dnl * Configure embedded libev                             *
dnl ********************************************************

AC_DEFINE_UNQUOTED(EV_USE_INOTIFY, 0, Disable unused libev inotify backend)
AC_DEFINE_UNQUOTED(EV_PERIODIC_ENABLE, 0, Disable unused libev periodic timers)
AC_DEFINE_UNQUOTED(EV_STAT_ENABLE, 0, Disable unused libev stat watchers)
AC_DEFINE_UNQUOTED(EV_IDLE_ENABLE, 0, Disable unused libev idle watchers)
AC_DEFINE_UNQUOTED(EV_FORK_ENABLE, 0, Disable unused libev fork watchers)
AC_DEFINE_UNQUOTED(EV_EMBED_ENABLE, 0, Disable unused libev embed watchers)

m4_include([libev/libev.m4])



dnl **************************************************
dnl * Check for Ipv6.                                *
dnl **************************************************

AC_CHECK_TYPES([struct sockaddr_in6], have_ipv6_type=yes,, [
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
])

AC_CHECK_DECL(AF_INET6, have_ipv6_def=yes,, [
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
])

if test x$have_ipv6_type = xyes && test x$have_ipv6_def = xyes; then
        AC_DEFINE_UNQUOTED(HAVE_IPV6, , Define whether Ipv6 is available on this system)
fi




dnl **************************************************
dnl * Typedefs, structures, compiler characteristics.*
dnl **************************************************

AC_C_CONST
AC_TYPE_UID_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_HEADER_TIME
AC_TYPE_SIGNAL
AC_C_INLINE
AC_C_BIGENDIAN
AC_SYS_LARGEFILE



dnl **************************************************
dnl * Setup custom compiler flags                    *
dnl **************************************************

AC_MSG_CHECKING(for platform-specific compiler flags)
case "$host_os" in
 darwin*)
        # It may be called "cc", but it's really a GCC derivative
        # with a problematic special precompiler and precompiled
        # headers; turn off the special precompiler, as some
        # apparently-legal code won't compile with its precompiled
        # headers.
        AC_MSG_RESULT(Darwin: adding -no-cpp-precomp)
        AX_C_CHECK_FLAG(-no-cpp-precomp, , , GLOBAL_CFLAGS="$GLOBAL_CFLAGS -no-cpp-precomp")
        ;;
 *)
        AC_MSG_RESULT(none needed)
        ;;
esac

AX_LD_CHECK_FLAG(-z relro, , , LDFLAGS="$LDFLAGS -z relro")
AX_LD_CHECK_FLAG(-z now, , , LDFLAGS="$LDFLAGS -z now")

for i in -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations \
         -Wbad-function-cast -Wcast-qual -Wcast-align -Wnested-externs -Wunused \
         -Wformat -Wformat-security; do
        AX_C_CHECK_FLAG($i, , , GLOBAL_CFLAGS="$GLOBAL_CFLAGS $i")
done

if test x$buggy_pthread_initializers = xyes; then
   AX_C_CHECK_FLAG(-Wno-missing-braces, , , GLOBAL_CFLAGS="$GLOBAL_CFLAGS -Wno-missing-braces")
fi


dnl **************************************************
dnl * Setup build variable                           *
dnl **************************************************

AS_AC_EXPAND(LIBDIR, $libdir)
AS_AC_EXPAND(DATADIR, $datadir)
AS_AC_EXPAND(DOCDIR, $docdir)
AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
AS_AC_EXPAND(LOCALSTATEDIR, $localstatedir)

configdir=$SYSCONFDIR/prelude-manager
prelude_manager_conf=$configdir/prelude-manager.conf
plugindir=$LIBDIR/prelude-manager
report_plugin_dir=$plugindir/reports
decode_plugin_dir=$plugindir/decodes
filter_plugin_dir=$plugindir/filters
db_plugin_dir=$plugindir/db

manager_failover_dir=$LOCALSTATEDIR/spool/prelude-manager/failover
manager_scheduler_dir=$LOCALSTATEDIR/spool/prelude-manager/scheduler
manager_run_dir=$LOCALSTATEDIR/run/prelude-manager

AC_DEFINE_UNQUOTED(REPORT_PLUGIN_DIR, "$report_plugin_dir", Prelude-Manager report plugin directory)
AC_DEFINE_UNQUOTED(DECODE_PLUGIN_DIR, "$decode_plugin_dir", Prelude-Manager decode plugin directory)
AC_DEFINE_UNQUOTED(FILTER_PLUGIN_DIR, "$filter_plugin_dir", Prelude-Manager filter plugin directory)
AC_DEFINE_UNQUOTED(MANAGER_SCHEDULER_DIR, "$manager_scheduler_dir", Prelude-Manager scheduler directory)
AC_DEFINE_UNQUOTED(MANAGER_FAILOVER_DIR, "$manager_failover_dir", Prelude-Manager failover directory)
AC_DEFINE_UNQUOTED(MANAGER_RUN_DIR, "$manager_run_dir", Prelude-Manager run directory)
AC_DEFINE_UNQUOTED(PRELUDE_MANAGER_CONFDIR, "$configdir", Define the Prelude Manager configuration directory)
AC_DEFINE_UNQUOTED(PRELUDE_MANAGER_CONF, "$prelude_manager_conf", Define the Prelude Manager configuration file path)

MANAGER_DATA_DIR=$DATADIR/prelude-manager
AC_SUBST(MANAGER_DATA_DIR)
AC_SUBST(configdir)
AC_SUBST(localstatedir)
AC_SUBST(manager_run_dir)
AC_SUBST(manager_scheduler_dir)
AC_SUBST(manager_failover_dir)
AC_SUBST(LIBWRAP_LIBS)
AC_SUBST(CFLAGS)
AC_SUBST(CPPFLAGS)
AC_SUBST(LDFLAGS)
AC_SUBST(GLOBAL_CFLAGS)
AC_SUBST(PRELUDE_MANAGER_CFLAGS)

AC_CONFIG_FILES([

Makefile
docs/Makefile
docs/manpages/Makefile

libev/Makefile
libmissing/Makefile
libmissing/tests/Makefile

m4/Makefile

prelude-manager.conf

src/Makefile
src/include/Makefile

plugins/Makefile

plugins/decodes/Makefile
plugins/decodes/normalize/Makefile

plugins/filters/Makefile
plugins/filters/idmef-criteria/Makefile
plugins/filters/thresholding/Makefile

plugins/reports/Makefile
plugins/reports/db/Makefile
plugins/reports/debug/Makefile
plugins/reports/relaying/Makefile
plugins/reports/smtp/Makefile
plugins/reports/textmod/Makefile
plugins/reports/xmlmod/Makefile
])
AC_OUTPUT

echo
echo "*** Dumping configuration ***"
echo "    - TCP wrapper support    : $with_libwrap";
echo "    - XML plugin support     : $enable_xmlmod";
echo "    - Database plugin support: $enable_libpreludedb";