# This file is part of Eclat -*- autoconf -*-
# Copyright (C) 2012-2018 Sergey Poznyakoff
#
# Eclat is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# Eclat is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Eclat.  If not, see <http://www.gnu.org/licenses/>.

AC_PREREQ(2.63)
AC_INIT([eclat], 2.0.90, [bug-eclat@gnu.org.ua],,
        [http://www.gnu.org.ua/software/eclat])
AC_CONFIG_SRCDIR([src/eclat.h])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_HEADER([config.h])
AM_INIT_AUTOMAKE([1.11 gnits tar-ustar dist-xz std-options silent-rules])
dnl AC_CONFIG_LIBOBJ_DIR([src])

# Enable silent rules by default:
AM_SILENT_RULES([yes])

# Checks for programs.
AC_PROG_CC
AC_PROG_LEX
AC_PROG_YACC
AC_PROG_RANLIB

# Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS([getopt.h])

# Check for libcurl
AC_ARG_VAR([CURL_CONFIG],[pathname of the curl-config binary])
AC_ARG_VAR([CURL_CFLAGS],[cc flags to use when compiling with libcurl])
AC_ARG_VAR([CURL_LIBS],[curl libraries to link with])

if test -z "$CURL_LIBS"; then
  if test -z "$CURL_CONFIG"; then
    AC_PATH_PROG(CURL_CONFIG, curl-config, none, $PATH)
  fi
  if test "$CURL_CONFIG" = "none"; then
    AC_MSG_ERROR([cannot find libcurl])
  fi
  CURL_CFLAGS=`$CURL_CONFIG --cflags`
  CURL_LIBS=`$CURL_CONFIG --libs`
  # FIXME: Check curl version?
fi

# Check for libexpat
AC_CHECK_HEADER([expat.h], [],
                [AC_MSG_ERROR([expat.h is not found])])
AC_CHECK_LIB([expat], [XML_Parse],[],
             [AC_MSG_ERROR([required library libexpat is not found])])

# MAPS
AC_SUBST([MAPLIBS])

AC_ARG_WITH([gdbm],
            [AC_HELP_STRING([--with-gdbm],
	                    [use GNU DBM])],
            [case "${withval}" in
	     yes|no) status_gdbm=${withval};;
             *)   AC_MSG_ERROR(bad value ${withval} for --with-gdbm) ;;
             esac],
	    [status_gdbm=auto])

if test $status_gdbm != "no"; then
  AC_CHECK_HEADERS(gdbm.h)
  AC_CHECK_LIB(gdbm, gdbm_open, [dbmlib=-lgdbm], [dbmlib=])
  if test "$ac_cv_header_gdbm_h" = yes && test -n "$dbmlib"; then
    MAPLIBS="$MAPLIBS $dbmlib"
    status_gdbm=yes
    AC_DEFINE(WITH_GDBM,1,[Use GDB GDBM])
  elif test $status_gdbm = yes; then
    AC_MSG_ERROR([required library libgdbm (or its header) is not found])
  else
    status_gdbm=no
  fi
fi  
AM_CONDITIONAL([COND_GDBM],[test $status_gdbm = yes])

# LDAP
AC_ARG_WITH(ldap,
 	    [AC_HELP_STRING([--with-ldap],
       	                    [use OpenLDAP])],
	    [case $withval in
	     yes|no)	status_ldap=$withval;;
             *)   AC_MSG_ERROR(bad value ${withval} for --with-ldap) ;;
             esac],
            [status_ldap=auto])

if test $status_ldap != no; then
  AC_CHECK_HEADERS(ldap.h)
  AC_CHECK_LIB(ldap, ldap_bind,[ldaplib=-lldap],[ldaplib=])
  AC_CHECK_LIB(lber, ber_set_option,[ldaplib="$ldaplib -llber"])
  if test "$ac_cv_header_ldap_h" = yes && test -n "$ldaplib"; then
    MAPLIBS="$MAPLIBS $ldaplib"
    status_ldap=yes
    AC_DEFINE(WITH_LDAP,1,[Use OpenLDAP])
  elif test $status_ldap = yes; then
    AC_MSG_ERROR([required library libldap (or its headers) is not found])
  else
    status_ldap=no
  fi
fi
AM_CONDITIONAL([COND_LDAP],[test $status_ldap = yes])

# Grecs subsystem

GRECS_SETUP([grecs],[tests getopt json git2chg])

#
AC_ARG_ENABLE([split-format],
              [AC_HELP_STRING([--enable-split-format],
	                      [build split format files])],
              [split_fmt=$enableval],
	      [split_fmt=no])

AM_CONDITIONAL([SPLIT_FORMATS],[test $split_fmt = yes])	      

# Initialize the test suite.
AC_CONFIG_TESTDIR(tests)
AC_CONFIG_FILES([tests/Makefile tests/atlocal])
AM_MISSING_PROG([AUTOM4TE], [autom4te])

AC_CONFIG_FILES([Makefile
                 lib/Makefile
		 src/Makefile
		 etc/Makefile
		 doc/Makefile])
		 
AC_OUTPUT