openldap/configure.in

dnl $OpenLDAP$
dnl
dnl Copyright 1998-2002 The OpenLDAP Foundation.  All Rights Reserved.
dnl 
dnl Redistribution and use in source and binary forms, with or without
dnl modification, are permitted only as authorized by the OpenLDAP
dnl Public License.  A copy of this license is available at
dnl http://www.OpenLDAP.org/license.html or in file LICENSE in the
dnl top-level directory of the distribution.
dnl
dnl ----------------------------------------------------------------
dnl Redefine AC_INIT_BINSH to provide RCS IDs and copyright notice
dnl at top of generated configure script.  Prints simple copyright.
define([AC_INIT_BINSH],
[[#! /bin/sh
# $]OpenLDAP[$
# from] translit([$OpenLDAP$], $")] [

# Copyright 1998-2002 The OpenLDAP Foundation.  All Rights Reserved.
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted only as authorized by the OpenLDAP
# Public License.  A copy of this license is available at
# http://www.OpenLDAP.org/license.html or in file LICENSE in the
# top-level directory of the distribution.

echo "Copyright 1998-2002 The OpenLDAP Foundation,  All Rights Reserved."
echo "Restrictions apply, see COPYRIGHT and LICENSE files."
])dnl
dnl ----------------------------------------------------------------
dnl Disable config.cache!
define([AC_CACHE_LOAD], )dnl
define([AC_CACHE_SAVE], )dnl
dnl ================================================================
dnl Configure.in for OpenLDAP
AC_INIT(build/version)dnl

# set unset (borrowed from autoconf 2.49c)
if (OL_FOO=OL_FOO; unset OL_FOO) >/dev/null 2>&1; then
  ol_unset=unset
else
  ol_unset=false
fi
# unset CDPATH
$ol_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=:; export CDPATH; }

AC_CONFIG_AUX_DIR(build)dnl

OL_VERSION=`cat $ac_aux_dir/version`
if test -z "$OL_VERSION"; then
	AC_MSG_ERROR([could not determine version])
fi

echo "Configuring OpenLDAP $OL_VERSION ..."

dnl Determine host platform
dnl		we try not to use this for much
AC_CANONICAL_SYSTEM

AM_INIT_AUTOMAKE(OpenLDAP,[$OL_VERSION], [no defines])dnl
AC_SUBST(PACKAGE)dnl
AC_SUBST(VERSION)dnl
AC_DEFINE_UNQUOTED(OPENLDAP_PACKAGE,"$PACKAGE",Package)
AC_DEFINE_UNQUOTED(OPENLDAP_VERSION,"$VERSION",Version)

dnl We use autoconf features new to 2.13.
dnl aclocal.m4 should be built using aclocal from automake 1.4
dnl libtool 1.3.3 should be installed.
AC_PREREQ(2.13)dnl Required Autoconf version

AC_CONFIG_HEADER(include/portable.h include/ldap_features.h include/lber_types.h)dnl

dnl ================================================================
dnl Start Args
AC_MSG_CHECKING(configure arguments)
AC_PREFIX_DEFAULT(/usr/local)

top_builddir=`pwd`
AC_SUBST(top_builddir)dnl

dnl ----------------------------------------------------------------
dnl --with-subdir
ldap_subdir="/openldap"

AC_ARG_WITH(subdir,
[  --with-subdir=DIR	  change default subdirectory used for installs],
[case "$withval" in
	no) ldap_subdir=""
		;;
	yes)
		;;
	/*|\\*)
		ldap_subdir="$withval"
		;;
	*)
		ldap_subdir="/$withval"
		;;
esac
])dnl

AC_SUBST(ldap_subdir)dnl

dnl ----------------------------------------------------------------
dnl General "enable" options
OL_ARG_ENABLE(debug,[  --enable-debug 	  enable debugging], yes)dnl
OL_ARG_ENABLE(syslog,[  --enable-syslog	  enable syslog support], auto)dnl
OL_ARG_ENABLE(proctitle,[  --enable-proctitle	  enable proctitle support], yes)dnl
OL_ARG_ENABLE(cache,[  --enable-cache	  enable caching (experimental)], no)dnl
OL_ARG_ENABLE(referrals,[  --enable-referrals	  enable LDAPv2+ Referrals (experimental)], no)dnl
OL_ARG_ENABLE(kbind,[  --enable-kbind	  enable LDAPv2+ Kerberos IV bind (deprecated)], no)dnl
OL_ARG_ENABLE(ipv6,[  --enable-ipv6 	  enable IPv6 support], auto)dnl
OL_ARG_ENABLE(local,[  --enable-local	  enable AF_LOCAL (AF_UNIX) socket support], auto)dnl
OL_ARG_ENABLE(x_compile,[  --enable-x-compile	  enable cross compiling],
	no, [yes no])dnl

dnl ----------------------------------------------------------------
dnl General "with" options
dnl OL_ARG_ENABLE(dmalloc,[  --enable-dmalloc	  enable debug malloc support], no)dnl

OL_ARG_WITH(cyrus_sasl,[  --with-cyrus-sasl	  with Cyrus SASL support],
	auto, [auto yes no] )
OL_ARG_WITH(fetch,[  --with-fetch		  with fetch URL support],
	auto, [auto yes no] )
OL_ARG_WITH(kerberos,[  --with-kerberos	  with Kerberos support],
	auto, [auto k5 k5only k425 kth k4 afs yes no])
OL_ARG_WITH(readline,[  --with-readline	  with readline support],
	auto, [auto yes no] )
OL_ARG_WITH(threads,[  --with-threads	  with threads],
	auto, [auto nt posix mach pth lwp yes no manual] )
OL_ARG_WITH(tls,[  --with-tls		  with TLS/SSL support],
	auto, [auto ssleay openssl yes no] )
OL_ARG_WITH(yielding_select,[  --with-yielding-select  with implicitly yielding select],
	auto, [auto yes no manual] )

dnl ----------------------------------------------------------------
dnl Server options
dnl ----------------------------------------------------------------

dnl ----------------------------------------------------------------
dnl SLAPD OPTIONS
AC_ARG_WITH(xxslapdoptions,[SLAPD (Standalone LDAP Daemon) Options:])
OL_ARG_ENABLE(slapd,[  --enable-slapd	  enable building slapd], yes)dnl
OL_ARG_ENABLE(cleartext,[    --enable-cleartext	  enable cleartext passwords], yes)dnl
OL_ARG_ENABLE(crypt,[    --enable-crypt	  enable crypt(3) passwords], auto)dnl
OL_ARG_ENABLE(kpasswd,[    --enable-kpasswd	  enable kerberos password verification], no)dnl
OL_ARG_ENABLE(spasswd,[    --enable-spasswd	  enable (Cyrus) SASL password verification], no)dnl
OL_ARG_ENABLE(modules,[    --enable-modules	  enable dynamic module support], no)dnl
dnl OL_ARG_ENABLE(multimaster,[    --enable-multimaster  enable multimaster replication], no)dnl
OL_ARG_ENABLE(phonetic,[    --enable-phonetic	  enable phonetic/soundex], no)dnl
OL_ARG_ENABLE(rlookups,[    --enable-rlookups	  enable reverse lookups], no)dnl
OL_ARG_ENABLE(aci,[    --enable-aci	  enable per-object ACIs], no)dnl
OL_ARG_ENABLE(wrappers,[    --enable-wrappers	  enable tcp wrapper support], no)dnl
OL_ARG_ENABLE(dynamic,[    --enable-dynamic	  enable linking built binaries with dynamic libs], no)dnl

dnl SLAPD Backend options
OL_ARG_ENABLE(dnssrv,[    --enable-dnssrv	  enable dnssrv backend], no)dnl
OL_ARG_WITH(dnssrv_module,[    --with-dnssrv-module  module type], static,
	[static dynamic])
OL_ARG_ENABLE(ldap,[    --enable-ldap	  enable ldap backend], no)dnl
OL_ARG_WITH(ldap_module,[    --with-ldap-module	  module type], static,
	[static dynamic])
OL_ARG_ENABLE(ldbm,[    --enable-ldbm	  enable ldbm backend], yes)dnl
OL_ARG_WITH(ldbm_api,[    --with-ldbm-api       with LDBM API], auto,
	[auto berkeley bcompat mdbm gdbm])
OL_ARG_WITH(ldbm_module,[    --with-ldbm-module	  module type], static,
	[static dynamic])
OL_ARG_WITH(ldbm_type,[    --with-ldbm-type	  use LDBM type], auto,
	[auto btree hash])
OL_ARG_ENABLE(passwd,[    --enable-passwd	  enable passwd backend], no)dnl
OL_ARG_WITH(passwd_module,[    --with-passwd-module  module type], static,
	[static dynamic])
OL_ARG_ENABLE(shell,[    --enable-shell	  enable shell backend], no)dnl
OL_ARG_WITH(shell_module,[    --with-shell-module	  module type], static,
	[static dynamic])
OL_ARG_ENABLE(sql,[    --enable-sql	  enable sql backend], no)dnl
OL_ARG_WITH(sql_module,[    --with-sql-module	  module type], static,
	[static dynamic])

dnl ----------------------------------------------------------------
dnl SLURPD OPTIONS
AC_ARG_WITH(xxslurpdoptions,[SLURPD (Replication Daemon) Options:])
OL_ARG_ENABLE(slurpd,[  --enable-slurpd	  enable building slurpd], auto)dnl

dnl ----------------------------------------------------------------
AC_ARG_WITH(xxliboptions,[Library Generation & Linking Options])
AC_ENABLE_STATIC
dnl AC_DISABLE_SHARED
AC_ENABLE_SHARED

dnl ----------------------------------------------------------------

dnl General "enable" options
# validate options
if test $ol_enable_slapd = no ; then
	dnl SLAPD was specificallly disabled
	if test $ol_enable_dnssrv = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-dnssrv argument])
	fi
	if test $ol_enable_ldap = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-ldap argument])
	fi
	if test $ol_enable_ldbm = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-ldbm argument])
	fi
	if test $ol_enable_passwd = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-passwd argument])
	fi
	if test $ol_enable_shell = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-shell argument])
	fi
	if test $ol_enable_sql = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-sql argument])
	fi
	if test $ol_enable_modules = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-modules argument])
	fi
dnl	if test $ol_enable_multimaster = yes ; then
dnl		AC_MSG_WARN([slapd disabled, ignoring --enable-multimaster argument])
dnl	fi
	if test $ol_enable_wrappers = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-wrappers argument])
	fi
	if test $ol_enable_phonetic = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-phonetic argument])
	fi
	if test $ol_enable_rlookups = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-rlookups argument])
	fi
	if test $ol_enable_aci = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-aci argument])
	fi
	if test $ol_with_ldbm_api != auto ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-ldbm-api argument])
	fi
	if test $ol_with_ldbm_type != auto ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-ldbm-type argument])
	fi
	if test $ol_with_dnssrv_module != static ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-dnssrv-module argument])
	fi
	if test $ol_with_ldap_module != static ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-ldap-module argument])
	fi
	if test $ol_with_ldbm_module != static ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-ldbm-module argument])
	fi
	if test $ol_with_passwd_module != static ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-passwd-module argument])
	fi
	if test $ol_with_shell_module != static ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-shell-module argument])
	fi
	if test $ol_with_sql_module != static ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-sql-module argument])
	fi
	if test $ol_enable_slurpd = yes ; then
		AC_MSG_ERROR([slurpd requires slapd])
	fi

	# force settings to no
	ol_enable_dnssrv=no
	ol_enable_ldap=no
	ol_enable_ldbm=no
	ol_enable_passwd=no
	ol_enable_shell=no
	ol_enable_sql=no

	ol_enable_modules=no
dnl	ol_enable_multimaster=no
	ol_enable_phonetic=no
	ol_enable_rlookups=no
	ol_enable_aci=no
	ol_enable_wrappers=no
	ol_enable_dynamic=no

	ol_with_ldbm_api=no
	ol_with_ldbm_type=no

	ol_with_dnssrv_module=static
	ol_with_ldap_module=static
	ol_with_ldbm_module=static
	ol_with_passwd_module=static
	ol_with_shell_module=static
	ol_with_sql_module=static

	ol_enable_slurpd=no

elif test $ol_enable_ldbm = no ; then
	dnl SLAPD without LDBM

	if test $ol_with_ldbm_api != auto ; then
		AC_MSG_WARN([LDBM disabled, ignoring --with-ldbm-api argument])
	fi

	if test $ol_with_ldbm_type != auto ; then
		AC_MSG_WARN([LDBM disabled, ignoring --with-ldbm-type argument])
	fi

	if test $ol_with_ldbm_module != static ; then
		AC_MSG_WARN([LDBM disabled, ignoring --with-ldbm-module argument])
	fi

	if test $ol_enable_modules != yes -a \
		$ol_enable_dnssrv = no -a \
		$ol_enable_ldap = no -a \
		$ol_enable_passwd = no -a \
		$ol_enable_shell = no -a \
		$ol_enable_sql = no ; then
		AC_MSG_ERROR([slapd requires a backend])
	fi

	ol_with_ldbm_api=no
	ol_with_ldbm_type=no
	ol_with_ldbm_module=static

else
	dnl SLAPD with LDBM
	if test $ol_with_ldbm_api = gdbm -a \
		$ol_with_ldbm_type = btree ; then
		AC_MSG_ERROR([GDBM only supports LDBM type hash])
	fi
	if test $ol_with_ldbm_api = mdbm -a \
		$ol_with_ldbm_type = btree ; then
		AC_MSG_ERROR([MDBM only supports LDBM type hash])
	fi
	if test $ol_with_ldbm_api = ndbm -a \
		$ol_with_ldbm_type = btree ; then
		AC_MSG_ERROR([NDBM only supports LDBM type hash])
	fi
fi

if test $ol_enable_slurpd = yes ; then
	dnl SLURPD was specifically enabled
	if test $ol_with_threads = no ; then
		AC_MSG_ERROR([slurpd requires threads])
	fi
fi

if test $ol_enable_kbind = yes -o $ol_enable_kpasswd = yes ; then
	if test $ol_with_kerberos = no ; then
		AC_MSG_ERROR([options require --with-kerberos])
	elif test $ol_with_kerberos = auto ; then
		ol_with_kerberos=yes
	fi

elif test $ol_enable_kbind = no -o $ol_enable_kpasswd = no ; then
	if test $ol_with_kerberos = auto ; then
		ol_with_kerberos=no
	elif test $ol_with_kerberos != no ; then
		AC_MSG_WARN([Kerberos detection enabled unnecessarily]);
		ol_with_kerberos=no
	fi
fi

if test $ol_enable_spasswd = yes ; then
	if test $ol_with_cyrus_sasl = no ; then
		AC_MSG_ERROR([options require --with-cyrus-sasl])
	fi
	ol_with_cyrus_sasl=yes
fi

AC_MSG_RESULT(done)

dnl ----------------------------------------------------------------
dnl Initialize vars
LDAP_LIBS=
LDIF_LIBS=
LDBM_LIBS=
LTHREAD_LIBS=
LUTIL_LIBS=

SLAPD_LIBS=
SLURPD_LIBS=

BUILD_SLAPD=no
BUILD_SLURPD=no

BUILD_THREAD=no

BUILD_DNSSRV=no
BUILD_LDAP=no
BUILD_LDBM=no
BUILD_PASSWD=no
BUILD_SHELL=no
BUILD_SQL=no

BUILD_DNSSRV_DYNAMIC=static
BUILD_LDAP_DYNAMIC=static
BUILD_LDBM_DYNAMIC=static
BUILD_PASSWD_DYNAMIC=static
BUILD_SHELL_DYNAMIC=static
BUILD_SQL_DYNAMIC=static

SLAPD_MODULES_LDFLAGS=
SLAPD_MODULES_CPPFLAGS=
SLAPD_MODULES_LIST=

SLAPD_SQL_LDFLAGS=
SLAPD_SQL_LIBS=
SLAPD_SQL_INCLUDES=

KRB4_LIBS=
KRB5_LIBS=
READLINE_LIBS=
SASL_LIBS=
TERMCAP_LIBS=
TLS_LIBS=
MODULES_LIBS=
AUTH_LIBS=

dnl ================================================================
dnl Checks for programs

dnl AC_PROG_INSTALL

AC_DEFINE(HAVE_MKVERSION, 1, [define this if you have mkversion])

dnl ----------------------------------------------------------------
dnl
dnl Determine which C translator to use
dnl

dnl AIX Thread requires we use cc_r or xlc_r.
dnl But only do this IF AIX and CC is not set
dnl and threads are auto|yes|posix.
dnl
dnl If we find cc_r|xlc_r, force pthreads and assume
dnl		pthread_create is in $LIBS (ie: don't bring in
dnl		any additional thread libraries)
dnl If we do not find cc_r|xlc_r, disable threads

ol_aix_threads=no
case "$target" in
*-*-aix*) dnl all AIX is not a good idea.
	if test -z "$CC" ; then
		case "$ol_with_threads" in
		auto | yes |  posix) ol_aix_threads=yes ;;
		esac
	fi
;;
esac

if test $ol_aix_threads = yes ; then
	if test -z "${CC}" ; then
		AC_CHECK_PROGS(CC,cc_r xlc_r cc)

		if test "$CC" = cc ; then
			dnl no CC! don't allow --with-threads
			if test $ol_with_threads != auto ; then
				AC_MSG_ERROR([--with-threads requires cc_r (or other suitable compiler) on AIX])
			else
				AC_MSG_WARN([disabling threads, no cc_r on AIX])
			fi
			ol_with_threads=no
  		fi
	fi

	if test "${CC}" = "cc_r" -o "${CC}" = "xlc_r" ; then
		ol_with_threads=posix
		ol_cv_pthread_create=yes
	fi
fi

if test -z "${CC}"; then
	AC_CHECK_PROGS(CC,cc)
fi

dnl The default CFLAGS is empty NOT whatever AC_PROG_CC sets.
dnl (for now, let autoconf sort this out)
dnl CFLAGS=${CFLAGS-""}

AC_CHECK_PROGS(AR,ar gar)

AC_LIBTOOL_WIN32_DLL
AC_LIBTOOL_DLOPEN
AC_PROG_LIBTOOL

AC_PROG_AWK
OL_PROG_LN_H
AC_PROG_LN_S

if test "$LN_H" = "cp" -a "$LN_S" = "ln"; then
	LN_S="$LN_H"
fi

AC_PATH_PROG(SENDMAIL, sendmail, /usr/lib/sendmail,
	$PATH:/usr/libexec:/usr/lib:/usr/sbin:/usr/etc:/etc)
AC_PATH_PROG(EDITOR, vi, /usr/ucb/vi, $PATH:/usr/ucb)
AC_PATH_PROG(FINGER, finger, /usr/ucb/finger, $PATH:/usr/ucb)

AC_PROG_CPP

dnl ----------------------------------------------------------------
dnl Cross compiling checks
if test $cross_compiling = yes -a $ol_enable_x_compile = yes; then
	AC_MSG_WARN([cross compiling....  some functionality will be removed.])

elif test $cross_compiling = no -a $ol_enable_x_compile = yes; then
	AC_MSG_WARN([programs compiled here do run here...])
	AC_MSG_ERROR([  if not cross compiling, use --disable-x-compile.])

elif test $cross_compiling = yes -a $ol_enable_x_compile = no; then
	AC_MSG_WARN([programs compiled here do not run here...])
	AC_MSG_ERROR([  if cross compiling,  add --enable-x-compile.])
fi

dnl ----------------------------------------------------------------
dnl Checks for UNIX Variants
AC_AIX
AC_ISC_POSIX
AC_MINIX

dnl ----------------------------------------------------------------
dnl Checks for system services
AC_CYGWIN
AC_MINGW32
AC_EXEEXT
AC_OBJEXT

AC_DEFINE_UNQUOTED( EXEEXT, "${EXEEXT}", [defined to be the EXE extension])

dnl ----------------------------------------------------------------
dnl BeOS requires -lbe -lroot -lnet
AC_CHECK_LIB(be, be_app, [LIBS="$LIBS -lbe -lroot -lnet"], :, [-lroot -lnet])

dnl ----------------------------------------------------------------
dnl OpenLDAP requires STDC features
AM_PROG_CC_STDC
if test "X${am_cv_prog_cc_stdc}" = "Xno" ; then
	AC_MSG_ERROR([OpenLDAP requires compiler to support STDC constructs.])
fi

dnl ----------------------------------------------------------------
dnl Check cc depend flags
OL_MKDEPEND
if test "${ol_cv_mkdep}" = no ; then
	# this will soon become an error
	AC_MSG_WARN([do not know how to generate dependencies])
fi

dnl ----------------------------------------------------------------
dnl Check for AIX security library
AC_CHECK_LIB(s, afopen, [
	AUTH_LIBS=-ls
	AC_DEFINE(HAVE_AIX_SECURITY,1,[define if you have AIX security lib])
])


dnl ----------------------------------------------------------------
dnl Check for module support
ol_link_modules=no
if test $ol_enable_modules != no ; then
	AC_CHECK_HEADERS(ltdl.h)

	if test $ac_cv_header_ltdl_h = no ; then
		AC_MSG_ERROR([could not locate libtool ltdl.h])
	fi

	AC_CHECK_LIB(ltdl, lt_dlinit, [
	    MODULES_LIBS=-lltdl
	    AC_DEFINE(HAVE_LIBLTDL,1,[define if you have libtool -ltdl])
	])

	if test "$ac_cv_lib_ltdl_lt_dlinit" = no ; then
		AC_MSG_ERROR([could not locate libtool -lltdl])
	fi
	ol_link_modules=yes
else
	ol_with_dnssrv_module=static
	ol_with_ldap_module=static
	ol_with_ldbm_module=static
	ol_with_passwd_module=static
	ol_with_shell_module=static
	ol_with_sql_module=static
fi

dnl ----------------------------------------------------------------
dnl Checks for header files.
OL_HEADER_STDC

if test $ol_cv_header_stdc != yes; then
	AC_MSG_WARN([could not locate Standard C compliant headers])
fi

AC_HEADER_DIRENT
AC_HEADER_SYS_WAIT
AM_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL
if test $am_cv_sys_posix_termios = yes ; then
	AC_DEFINE(HAVE_POSIX_TERMIOS,1,
		[define if you have POSIX termios])
fi

AC_CHECK_HEADERS(	\
	arpa/inet.h		\
	arpa/nameser.h	\
	assert.h		\
	conio.h			\
	crypt.h			\
	direct.h		\
	errno.h			\
	fcntl.h			\
	filio.h			\
	getopt.h		\
	grp.h			\
	io.h			\
	libutil.h		\
	limits.h		\
	locale.h		\
	netinet/tcp.h	\
	malloc.h		\
	memory.h		\
	psap.h			\
	pwd.h			\
	process.h		\
	resolv.h		\
	sgtty.h			\
	shadow.h		\
	stddef.h		\
	string.h		\
	strings.h		\
	sysexits.h		\
	sys/file.h		\
	sys/filio.h		\
	sys/errno.h		\
	sys/ioctl.h		\
	sys/param.h		\
	sys/resource.h	\
	sys/select.h	\
	sys/socket.h	\
	sys/syslog.h	\
	sys/time.h		\
	sys/types.h		\
	syslog.h		\
	termios.h		\
	unistd.h		\
	winsock.h		\
)


dnl ----------------------------------------------------------------
dnl Checks for libraries

dnl SASL and SSL need dlopen on some platforms
AC_CHECK_FUNC(dlopen, :, [AC_CHECK_LIB(dl, dlopen)])

dnl HP-UX requires -lV3
AC_CHECK_LIB(V3, sigset)

dnl Gotta check for winsock manually
if test $ac_cv_header_winsock_h = yes; then
	AC_CACHE_CHECK([for winsock], [ol_cv_winsock], 
    	AC_TRY_LINK([#include <winsock.h>],[
			socket(0,0,0);
			select(0,NULL,NULL,NULL,NULL);
			closesocket(0);
			gethostname(NULL,0);
    	],[ol_cv_winsock=yes],[ol_cv_winsock=no]))

	if test $ol_cv_winsock = yes ; then
		AC_DEFINE(HAVE_WINSOCK,1,[define if you have winsock])
		ac_cv_func_socket=yes
		ac_cv_func_select=yes
		ac_cv_func_closesocket=yes
		ac_cv_func_gethostname=yes
	fi
fi

dnl Find socket()
dnl Likely combinations:
dnl		-lsocket [ -lnsl_s | -lnsl ]
dnl		-linet

AC_CHECK_FUNC(socket, :, [	
dnl hopefully we won't include too many libraries
	AC_CHECK_LIB(socket, main)
	AC_CHECK_LIB(net, main)
	AC_CHECK_LIB(nsl_s, main)
	AC_CHECK_LIB(nsl, main)
	AC_CHECK_LIB(inet, socket)
	AC_CHECK_LIB(gen, main)
])

dnl require select
AC_CHECK_FUNC(select, :, AC_MSG_ERROR([select() required.]))

if test "${ac_cv_header_winsock_h}" != yes; then
    dnl Select arg types
    dnl (if this detection becomes permenent, it and the select() detection
    dnl should be done before the yielding select test) 
    AC_FUNC_SELECT_ARGTYPES
fi

dnl check to see if system call automatically restart
dnl AC_SYS_RESTARTABLE_SYSCALLS

dnl ----------------------------------------------------------------
dnl require POSIX regex
AC_CHECK_HEADERS( regex.h )
if test "$ac_cv_header_regex_h" != yes ; then
	AC_MSG_ERROR([POSIX regex.h required.])
fi
AC_CHECK_FUNC(regfree, :, AC_MSG_ERROR([POSIX regex required.]))

OL_POSIX_REGEX
if test "$ol_cv_c_posix_regex" = no ; then
	AC_MSG_ERROR([broken POSIX regex!])
fi

dnl ----------------------------------------------------------------
dnl Check for resolver routines
dnl	  need to check for both res_query and __res_query
dnl   need to check -lc, -lbind, and -lresolv
ol_link_dnssrv=no
AC_CHECK_FUNC(res_query,:)
if test $ac_cv_func_res_query = no ; then 
	AC_CHECK_FUNC(__res_query,:)
	ac_cv_func_res_query=$ac_cv_func___res_query
fi

if test $ac_cv_func_res_query = no ; then 
	AC_CHECK_LIB(bind, res_query)
	ac_cv_func_res_query=$ac_cv_lib_bind_res_query
fi

if test $ac_cv_func_res_query = no ; then 
	AC_CHECK_LIB(bind, __res_query)
	ac_cv_func_res_query=$ac_cv_lib_bind___res_query
fi

if test $ac_cv_func_res_query = no ; then 
	AC_CHECK_LIB(resolv, res_query)
	ac_cv_func_res_query=$ac_cv_lib_resolv_res_query
fi

if test $ac_cv_func_res_query = no ; then 
	AC_CHECK_LIB(resolv, __res_query)
	ac_cv_func_res_query=$ac_cv_lib_resolv___res_query
fi

if test "$ac_cv_func_res_query" = yes ; then
	AC_DEFINE(HAVE_RES_QUERY,1,
		[define if you have res_query()])

	if test $ol_enable_dnssrv != no ; then
		ol_link_dnssrv=yes
	fi
fi

if test "$ol_enable_dnssrv" = yes -a "$ol_link_dnssrv" = no ; then
	AC_MSG_ERROR([DNSSRV requires res_query()])
fi

dnl ----------------------------------------------------------------
dnl PF_INET6 support requires getaddrinfo and INET6_ADDRSTRLEN
dnl PF_LOCAL may use getaddrinfo in available
AC_CHECK_FUNCS( getaddrinfo gai_strerror inet_ntop )

ol_link_ipv6=no
if test $ac_cv_func_getaddrinfo = no -o $ac_cv_func_inet_ntop = no ; then
	if test $ol_enable_ipv6 = yes ; then
		AC_MSG_ERROR([IPv6 support requires getaddrinfo() and inet_ntop()])
	fi
elif test $ol_enable_ipv6 != no ; then
	AC_CACHE_CHECK([INET6_ADDRSTRLEN],[ol_cv_inet6_addrstrlen],[
		AC_EGREP_CPP(__has_inet6_addrstrlen__,[
#			include <netinet/in.h>
#			ifdef INET6_ADDRSTRLEN
				__has_inet6_addrstrlen__;
#			endif
		], [ol_cv_inet6_addrstrlen=yes], [ol_cv_inet6_addrstrlen=no])])

	if test $ol_cv_inet6_addrstrlen = yes ; then
		ol_link_ipv6=yes
	elif test $ol_enable_ipv6 = yes ; then
		AC_MSG_ERROR([IPv6 support requires INET6_ADDRSTRLEN])
	fi
fi

if test $ol_enable_local != no ; then
	AC_CHECK_HEADERS( sys/un.h )

	if test $ol_enable_local = auto ; then
		ol_enable_local=$ac_cv_header_sys_un_h
	elif test $ac_cv_header_sys_un_h = no ; then
		AC_MSG_ERROR([AF_LOCAL domain support requires sys/un.h])
	fi
fi

dnl ----------------------------------------------------------------
dnl Kerberos
ol_link_kbind=no
ol_link_kpasswd=no
ol_link_krb5=no
ol_link_krb4=no

if test $ol_with_kerberos = yes -o $ol_with_kerberos = auto \
	-o $ol_with_kerberos = k5 -o $ol_with_kerberos = k5only \
	-o $ol_with_kerberos = k425 ; then

	AC_CHECK_HEADERS(krb5.h)

	if test $ac_cv_header_krb5_h = yes ; then
		dnl lazy check for Heimdal Kerberos
		AC_CHECK_HEADERS(heim_err.h)
		if test $ac_cv_header_heim_err_h = yes ; then
			krb5_impl=heimdal
		else
			krb5_impl=mit
		fi

		if test $krb5_impl = mit; then
			AC_CHECK_LIB(k5crypto, main,
				[krb5crypto=k5crypto],
				[krb5crypto=crypto])

			AC_CHECK_LIB(krb5, main,
				[have_krb5=yes
				KRB5_LIBS="-lkrb5 -l$krb5crypto -lcom_err"],
				[have_krb5=no],
				[-l$krb5crypto -lcom_err])

		elif test $krb5_impl = heimdal; then
			AC_CHECK_LIB(krb5, main,
				[have_krb5=yes
				KRB5_LIBS="-lkrb5 -ldes -lasn1 -lroken -lcom_err"],
				[have_krb5=no],
				[-ldes -lasn1 -lroken -lcom_err])

			AC_DEFINE(HAVE_HEIMDAL_KERBEROS, 1,
				[define if you have HEIMDAL Kerberos])

		else
			have_krb5=no
			AC_MSG_WARN([Unrecongized Kerberos V Implementation])
		fi

		if test $have_krb5 = yes ; then
			ol_link_krb5=yes

			AC_DEFINE(HAVE_KRB5, 1,
				[define if you have Kerberos V])

			if test $ol_enable_kpasswd != no ; then
				ol_link_kpasswd=yes;
			fi

			if test $ol_with_kerberos = k5only ; then
				ol_with_kerberos=found
			fi

		elif test $ol_with_kerberos != auto ; then
			AC_MSG_ERROR([Required Kerberos 5 support not available])
		fi

	fi
fi

if test $ol_link_krb5 = yes -a \( $ol_with_kerberos = yes -o \
	$ol_with_kerberos = auto -o $ol_with_kerberos = k425 \) ; then

	AC_CHECK_HEADERS(kerberosIV/krb.h kerberosIV/des.h)

	if test $ac_cv_header_kerberosIV_krb_h = yes ; then
		if test $krb5_impl = mit; then
			AC_CHECK_LIB(krb4, main, [have_k425=yes
				KRB4_LIBS="-lkrb4 -ldes425"], [have_k425=no],
				[-ldes425 -lkrb5 -l$krb5crypto -lcom_err])

		elif test $krb5_impl = heimdal; then
			AC_CHECK_LIB(krb4, main, [have_k425=yes
				KRB4_LIBS="-lkrb4"], [have_k425=no],
				[-lkrb5 -ldes -lasn1 -lroken -lcom_err])

		else
			have_425=no
			AC_MSG_WARN([Unrecongized Kerberos5 Implementation])
		fi

		if test $have_k425 = yes ; then
			ol_with_kerberos=found
			ol_link_krb4=yes

			AC_DEFINE(HAVE_KRB425, 1,
				[define if you have Kerberos V with IV support])
			AC_DEFINE(HAVE_KRB4, 1,
				[define if you have Kerberos IV])

			AC_CACHE_CHECK([for des_debug in Kerberos libraries],
				[ol_cv_var_des_debug], [
				dnl save the flags
				save_LIBS="$LIBS"
				LIBS="$KRB4_LIBS $KRB5_LIBS $LIBS"
				AC_TRY_LINK([
#include <kerberosIV/krb.h>
#include <kerberosIV/des.h>
extern int des_debug;
],[
des_debug = 1;
],				ol_cv_var_des_debug=yes, ol_cv_var_des_debug=no)
				dnl restore the LIBS
				LIBS="$save_LIBS"
			])

			if test $ol_cv_var_des_debug = yes ; then
				AC_DEFINE(HAVE_DES_DEBUG,1,
					[define if you have Kerberos des_debug])
			fi

			LIBS="$save_LIBS"
		fi
	fi
fi

if test $ol_link_krb5 = yes ; then
	ol_with_kerberos=found
fi

if test $ol_with_kerberos = yes -o $ol_with_kerberos = auto \
	-o $ol_with_kerberos = k4 -o $ol_with_kerberos = kth ; then

	AC_CHECK_HEADERS(krb.h des.h krb-archaeology.h )

	if test $ac_cv_header_krb_h = yes ; then
		AC_CHECK_LIB(krb, main, [have_k4=yes], [have_k4=no], [-ldes])

		if test $have_k4 = yes ; then
			ol_with_kerberos=found
			ol_link_krb4=yes

			AC_DEFINE(HAVE_KRB4, 1,
				[define if you have Kerberos IV])

			KRB4_LIBS="-lkrb -ldes"

			if test $ac_cv_header_krb_archaeology_h = yes ; then
				AC_DEFINE(HAVE_KTH_KERBEROS, 1,
					[define if you have Kth Kerberos])
			fi
		fi
	fi
fi

if test $ol_link_krb4 = yes -a $ol_enable_kpasswd != no ; then
	ol_link_kpasswd=yes
fi

if test $ol_link_krb4 = yes -a $ol_enable_kbind != no ; then
	ol_link_kbind=yes

elif test $ol_enable_kbind = yes ; then
	AC_MSG_ERROR([Kerberos IV detection failed])
fi

if test $ol_link_krb4 = yes -o $ol_link_krb5 = yes ; then
	AC_DEFINE(HAVE_KERBEROS, 1, [define if you have Kerberos])

elif test $ol_with_kerberos != auto -a $ol_with_kerberos != no ; then
	AC_MSG_ERROR([Kerberos detection failed])
fi

dnl ----------------------------------------------------------------
dnl TLS/SSL
ol_link_tls=no
if test $ol_with_tls != no ; then
	AC_CHECK_HEADERS(openssl/ssl.h ssl.h)
	
	if test $ac_cv_header_openssl_ssl_h = yes -o $ac_cv_header_ssl_h = yes ; then
		AC_CHECK_LIB(ssl, SSLeay_add_ssl_algorithms, 
			[have_ssleay=yes
			need_rsaref=no],
			[have_ssleay=no],
			[-lcrypto])
			
		if test $have_ssleay = no ; then
			AC_CHECK_LIB(ssl, SSL_library_init,
				[have_ssleay=yes
				need_rsaref=no], [have_ssleay=no],
				[-lcrypto])
		fi

		if test $have_ssleay = no ; then
			AC_CHECK_LIB(ssl, ssl3_accept, 
				[have_ssleay=yes
				need_rsaref=yes], [have_ssleay=no],
				[-lcrypto -lRSAglue -lrsaref])
		fi

		if test $have_ssleay = yes ; then
			ol_with_tls=found
			ol_link_tls=yes

			AC_DEFINE(HAVE_SSLEAY, 1, 
				[define if you have SSLeay or OpenSSL])

			if test $need_rsaref = yes; then
				AC_DEFINE(HAVE_RSAREF, 1, 
					[define if you have RSAref])

				TLS_LIBS="-lssl -lcrypto -lRSAglue -lrsaref"
			else
				TLS_LIBS="-lssl -lcrypto"
			fi
		fi
	fi

else
	AC_WARN([TLS privacy protection not supported!])
fi

if test $ol_link_tls = yes ; then
	AC_DEFINE(HAVE_TLS, 1, [define if you have TLS])

elif test $ol_with_tls = auto ; then
	AC_WARN([Could not locate TLS/SSL package])
	AC_WARN([TLS privacy protection not supported!])

elif test $ol_with_tls != no ; then
	AC_ERROR([Could not locate TLS/SSL package])
fi

dnl ----------------------------------------------------------------
dnl Tests for reentrant functions necessary to build a
dnl thread_safe -lldap.
AC_CHECK_FUNCS(		\
	ctime_r			\
	gethostbyname_r	gethostbyaddr_r \
)

if test "$ac_cv_func_ctime_r" = no ; then
	ol_cv_func_ctime_r_nargs=0
else
	OL_FUNC_CTIME_R_NARGS
dnl	OL_FUNC_CTIME_R_TYPE
fi

if test "$ac_cv_func_gethostbyname_r" = yes ; then
 	OL_FUNC_GETHOSTBYNAME_R_NARGS
else
 	ol_cv_func_gethostbyname_r_nargs=0
fi
 
if test "$ac_cv_func_gethostbyaddr_r" = yes ; then
 	OL_FUNC_GETHOSTBYADDR_R_NARGS
else
 	ol_cv_func_gethostbyaddr_r_nargs=0
fi

if test "$ac_cv_func_ctime_r" = yes \
	-a "$ol_cv_func_ctime_r_nargs" -ge 2 \
	-a "$ol_cv_func_ctime_r_nargs" -le 3 \
	-a "$ac_cv_func_gethostbyname_r" = yes \
	-a "$ol_cv_func_gethostbyname_r_nargs" -ge 5 \
	-a "$ol_cv_func_gethostbyname_r_nargs" -le 6 \
 	-a "$ac_cv_func_gethostbyaddr_r" = yes \
 	-a "$ol_cv_func_gethostbyaddr_r_nargs" -ge 5 \
	-a "$ol_cv_func_gethostbyaddr_r_nargs" -le 6 \
 	; then
 
 	AC_DEFINE(LDAP_API_FEATURE_X_OPENLDAP_REENTRANT,1)
fi

dnl ----------------------------------------------------------------
dnl Threads?
ol_link_threads=no

if test $ol_with_threads = auto -o $ol_with_threads = yes \
	-o $ol_with_threads = nt ; then

	OL_NT_THREADS

	if test "$ol_cv_nt_threads" = yes ; then
    	ol_link_threads=nt
    	ol_with_threads=found
    	ol_with_yielding_select=yes

		AC_DEFINE(HAVE_NT_SERVICE_MANAGER,1,[if you have NT Service Manager])
		AC_DEFINE(HAVE_NT_EVENT_LOG,1,[if you have NT Event Log])
	fi

	if test $ol_with_threads = nt ; then
		AC_MSG_ERROR([could not locate NT Threads])
	fi
fi

if test $ol_with_threads = auto -o $ol_with_threads = yes \
	-o $ol_with_threads = posix ; then

	AC_CHECK_HEADERS(pthread.h)

	if test $ac_cv_header_pthread_h = yes ; then
		OL_POSIX_THREAD_VERSION

		if test $ol_cv_pthread_version = final ; then
			AC_DEFINE(HAVE_PTHREADS_FINAL,1,
				[define if pthreads API compatible with final spec])
		elif test $ol_cv_pthread_version = draft4 ; then
			AC_DEFINE(HAVE_PTHREADS_D4,1,
				[define if pthreads API compatible with draft4 spec])
		else
			AC_MSG_ERROR([unknown pthread version])
		fi

		# consider threads found
		ol_with_threads=found

		OL_HEADER_LINUX_THREADS
		OL_HEADER_GNU_PTH_PTHREAD_H

		if test $ol_cv_header_gnu_pth_pthread_h = no ; then
			AC_CHECK_HEADERS(sched.h)
		fi

		dnl Now the hard part, how to link?
		dnl
		dnl currently supported checks:
		dnl
		dnl Check for no flags 
		dnl 	pthread_create() in $LIBS
		dnl
		dnl Check special pthread (final) flags
		dnl 	[skipped] pthread_create() with -mt (Solaris) [disabled]
		dnl 	pthread_create() with -kthread (FreeBSD)
		dnl 	pthread_create() with -pthread (FreeBSD/Digital Unix)
		dnl 	pthread_create() with -pthreads (?)
		dnl 	pthread_create() with -mthreads (AIX)
		dnl 	pthread_create() with -thread (?)
		dnl
		dnl Check pthread (final) libraries
		dnl 	pthread_mutex_unlock() in -lpthread -lmach -lexc -lc_r (OSF/1)
		dnl 	pthread_mutex_lock() in -lpthread -lmach -lexc (OSF/1)
		dnl 	[skipped] pthread_mutex_trylock() in -lpthread -lexc (OSF/1)
		dnl 	pthread_join() -Wl,-woff,85 -lpthread (IRIX)
		dnl 	pthread_create() in -lpthread (many)
		dnl 	pthread_create() in -lc_r (FreeBSD)
		dnl
		dnl Check pthread (draft4) flags (depreciated)
		dnl 	pthread_create() with -threads (OSF/1)
		dnl
		dnl Check pthread (draft4) libraries (depreciated)
		dnl 	pthread_mutex_unlock() in -lpthreads -lmach -lexc -lc_r (OSF/1)
		dnl 	pthread_mutex_lock() in -lpthreads -lmach -lexc (OSF/1)
		dnl 	pthread_mutex_trylock() in -lpthreads -lexc (OSF/1)
		dnl 	pthread_create() in -lpthreads (many)
		dnl

		dnl pthread_create in $LIBS
		AC_CACHE_CHECK([for pthread_create in default libraries],
			ol_cv_pthread_create,[
		AC_TRY_RUN(OL_PTHREAD_TEST_PROGRAM,
			[ol_cv_pthread_create=yes],
			[ol_cv_pthread_create=no],
			[AC_TRY_LINK(OL_PTHREAD_TEST_INCLUDES,OL_PTHREAD_TEST_FUNCTION,
				[ol_cv_pthread_create=yes],
				[ol_cv_pthread_create=no])])])

		if test $ol_cv_pthread_create != no ; then
			ol_link_threads=posix
			ol_link_pthreads=""
		fi
		
dnl		OL_PTHREAD_TRY([-mt],		[ol_cv_pthread_mt])
		OL_PTHREAD_TRY([-kthread],	[ol_cv_pthread_kthread])
		OL_PTHREAD_TRY([-pthread],	[ol_cv_pthread_pthread])
		OL_PTHREAD_TRY([-pthreads],	[ol_cv_pthread_pthreads])
		OL_PTHREAD_TRY([-mthreads],	[ol_cv_pthread_mthreads])
		OL_PTHREAD_TRY([-thread],	[ol_cv_pthread_thread])

		OL_PTHREAD_TRY([-lpthread -lmach -lexc -lc_r],
			[ol_cv_pthread_lpthread_lmach_lexc_lc_r])
		OL_PTHREAD_TRY([-lpthread -lmach -lexc],
			[ol_cv_pthread_lpthread_lmach_lexc])
dnl		OL_PTHREAD_TRY([-lpthread -lexc],
dnl			[ol_cv_pthread_lpthread_lexc])

		OL_PTHREAD_TRY([-lpthread -Wl,-woff,85],
			[ol_cv_pthread_lib_lpthread_woff])

		OL_PTHREAD_TRY([-lpthread],	[ol_cv_pthread_lpthread])
		OL_PTHREAD_TRY([-lc_r],		[ol_cv_pthread_lc_r])

		OL_PTHREAD_TRY([-threads],	[ol_cv_pthread_threads])

		OL_PTHREAD_TRY([-lpthreads -lmach -lexc -lc_r],
			[ol_cv_pthread_lpthreads_lmach_lexc_lc_r])
		OL_PTHREAD_TRY([-lpthreads -lmach -lexc],
			[ol_cv_pthread_lpthreads_lmach_lexc])
		OL_PTHREAD_TRY([-lpthreads -lexc],
			[ol_cv_pthread_lpthreads_lexc])

		OL_PTHREAD_TRY([-lpthreads],[ol_cv_pthread_lib_lpthreads])

		if test $ol_link_threads != no ; then
			AC_DEFINE(HAVE_PTHREADS,1,
				[define if you have POSIX Threads])

			LTHREAD_LIBS="$LTHREAD_LIBS $ol_link_pthreads"

			dnl save flags
			save_CPPFLAGS="$CPPFLAGS"
			save_LIBS="$LIBS"
			LIBS="$LTHREAD_LIBS $LIBS"

			dnl All POSIX Thread (final) implementations should have
			dnl sched_yield instead of pthread yield.
			dnl check for both
			AC_CHECK_FUNCS(sched_yield pthread_yield)

			if test $ac_cv_func_sched_yield = no -a \
				$ac_cv_func_pthread_yield = no ; then
				dnl Digital UNIX has sched_yield() in -lrt
				AC_CHECK_LIB(rt, sched_yield,
					[LTHREAD_LIBS="$LTHREAD_LIBS -lrt"
					AC_DEFINE(HAVE_SCHED_YIELD,1,
						[Define if you have the sched_yield function.])
					ac_cv_func_sched_yield=yes],
					[ac_cv_func_sched_yield=no])
			fi
			if test $ac_cv_func_sched_yield = no -a \
				$ac_cv_func_pthread_yield = no ; then
				dnl Solaris has sched_yield() stub in -lposix4
				dnl but we'll use thr_yield instead.
				AC_CHECK_FUNCS(thr_yield)
			fi
			if test $ac_cv_func_sched_yield = no -a \
				$ac_cv_func_pthread_yield = no -a \
				"$ac_cv_func_thr_yield" = no ; then
				AC_MSG_WARN([could not locate sched_yield() or pthread_yield()])
			fi

			dnl Check functions for compatibility
			AC_CHECK_FUNCS(pthread_kill pthread_rwlock_destroy)

			dnl Check for pthread_detach with <pthread.h> inclusion
			dnl as it's symbol may have been mangled.
			AC_CACHE_CHECK([for pthread_detach with <pthread.h>],
				[ol_cv_func_pthread_detach], [
				dnl save the flags
				AC_TRY_LINK([
#include <pthread.h>
#ifndef NULL
#define NULL (void*)0
#endif
],
					[pthread_detach(NULL);],
					[ol_cv_func_pthread_detach=yes],
					[ol_cv_func_pthread_detach=no])
			])

			if test $ol_cv_func_pthread_detach = no ; then
				AC_MSG_ERROR([could not locate pthread_detach()])
			fi

			AC_DEFINE(HAVE_PTHREAD_DETACH,1,
				[define if you have pthread_detach function])

			dnl Check for setconcurreny functions
			AC_CHECK_FUNCS(	\
				pthread_setconcurrency \
				pthread_getconcurrency \
				thr_setconcurrency \
				thr_getconcurrency \
			)

			OL_SYS_LINUX_THREADS
			OL_LINUX_THREADS

			if test $ol_cv_linux_threads = error; then
				AC_MSG_ERROR([LinuxThreads header/library mismatch]);
			fi

			AC_CACHE_CHECK([if pthread_create() works],
				ol_cv_pthread_create_works,[
			AC_TRY_RUN(OL_PTHREAD_TEST_PROGRAM,
				[ol_cv_pthread_create_works=yes],
				[ol_cv_pthread_create_works=no],
				[dnl assume yes
				ol_cv_pthread_create_works=yes])])

			if test $ol_cv_pthread_create_works = no ; then
				AC_MSG_ERROR([pthread_create is not usable, check environment settings])
			fi

			dnl Check if select causes an yield
			if test $ol_with_yielding_select = auto ; then
				AC_CACHE_CHECK([if select yields when using pthreads],
					ol_cv_pthread_select_yields,[
				AC_TRY_RUN([
#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>
#include <pthread.h>
#ifndef NULL
#define NULL (void*) 0
#endif

static int fildes[2];

static void *task(p)
	void *p;
{
	int i;
	struct timeval tv;

	fd_set rfds;

	tv.tv_sec=10;
	tv.tv_usec=0;

	FD_ZERO(&rfds);
	FD_SET(fildes[0], &rfds);

	/* we're not interested in any fds */
	i = select(FD_SETSIZE, &rfds, NULL, NULL, &tv);

	if(i < 0) {
		perror("select");
		exit(10);
	}

	exit(0); /* if we exit here, the select blocked the whole process */
}

int main(argc, argv)
	int argc;
	char **argv;
{
	pthread_t t;

	/* create a pipe to select */
	if(pipe(&fildes[0])) {
		perror("select");
		exit(1);
	}

#ifdef HAVE_PTHREAD_SETCONCURRENCY
	(void) pthread_setconcurrency(2);
#else
#ifdef HAVE_THR_SETCONCURRENCY
	/* Set Solaris LWP concurrency to 2 */
	thr_setconcurrency(2);
#endif
#endif

#if HAVE_PTHREADS_D4
	pthread_create(&t, pthread_attr_default, task, NULL);
#else
	pthread_create(&t, NULL, task, NULL);
#endif

#if HAVE_SCHED_YIELD
	sched_yield();	/* make sure task runs first */
#else
#ifdef HAVE_PTHREAD_YIELD
	pthread_yield();	/* make sure task runs first */
#endif
#endif

	exit(2);
}],
				[ol_cv_pthread_select_yields=no],
				[ol_cv_pthread_select_yields=yes],
				[ol_cv_pthread_select_yields=cross])])

				if test $ol_cv_pthread_select_yields = cross ; then
					AC_MSG_ERROR([crossing compiling: use --with-yielding_select=yes|no|manual])
				fi

				if test $ol_cv_pthread_select_yields = yes ; then
					ol_with_yielding_select=yes
				fi
			fi

			dnl restore flags
			CPPFLAGS="$save_CPPFLAGS"
			LIBS="$save_LIBS"
		else
			AC_MSG_ERROR([could not locate usable POSIX Threads])
		fi
	fi

	if test $ol_with_threads = posix ; then
		AC_MSG_ERROR([could not locate POSIX Threads])
	fi
fi

if test $ol_with_threads = auto -o $ol_with_threads = yes \
	-o $ol_with_threads = mach ; then

	dnl check for Mach CThreads
	AC_CHECK_HEADERS(mach/cthreads.h cthreads.h)
	if test $ac_cv_header_mach_cthreads_h = yes ; then
		ol_with_threads=found

		dnl check for cthreads support in current $LIBS
		AC_CHECK_FUNC(cthread_fork,[ol_link_threads=yes])

		if test $ol_link_threads = no ; then
			dnl try -all_load
			dnl this test needs work
			AC_CACHE_CHECK([for cthread_fork with -all_load],
				[ol_cv_cthread_all_load], [
				dnl save the flags
				save_LIBS="$LIBS"
				LIBS="-all_load $LIBS"
				AC_TRY_LINK([#include <mach/cthreads.h>],[
					cthread_fork((void *)0, (void *)0);
					], ol_cv_cthread_all_load=yes, ol_cv_cthread_all_load=no)
				dnl restore the LIBS
				LIBS="$save_LIBS"
			])

			if test $ol_cv_cthread_all_load = yes ; then
				LTHREAD_LIBS="$LTHREAD_LIBS -all_load"
				ol_link_threads=mach
				ol_with_threads=found
			fi
		fi

    elif test $ac_cv_header_cthreads_h = yes ; then
		dnl Hurd variant of Mach Cthreads
		dnl uses <cthreads.h> and -lthreads

		ol_with_threads=found
 
		dnl save the flags
		save_LIBS="$LIBS"
		LIBS="$LIBS -lthreads"
		AC_CHECK_FUNC(cthread_fork,[ol_link_threads=yes])
		LIBS="$save_LIBS"

		if test $ol_link_threads = yes ; then
			LTHREAD_LIBS="-lthreads"
			ol_link_threads=mach
			ol_with_threads=found
		else
			AC_MSG_ERROR([could not link with Mach CThreads])
		fi

	elif test $ol_with_threads = mach ; then
		AC_MSG_ERROR([could not locate Mach CThreads])
	fi

	if test $ol_link_threads = mach ; then
		AC_DEFINE(HAVE_MACH_CTHREADS,1,
			[define if you have Mach Cthreads])
	elif test $ol_with_threads = found ; then
		AC_MSG_ERROR([could not link with Mach CThreads])
	fi
fi

if test $ol_with_threads = auto -o $ol_with_threads = yes \
	-o $ol_with_threads = pth ; then

	AC_CHECK_HEADERS(pth.h)

	if test $ac_cv_header_pth_h = yes ; then
		AC_CHECK_LIB(pth, pth_version, [have_pth=yes], [have_pth=no])

		if test $have_pth = yes ; then
			AC_DEFINE(HAVE_GNU_PTH,1,[if you have GNU Pth])
			LTHREAD_LIBS="$LTHREAD_LIBS -lpth"
			ol_link_threads=pth
			ol_with_threads=found

			if test $ol_with_yielding_select = auto ; then
				ol_with_yielding_select=yes
			fi
		fi
	fi
fi

if test $ol_with_threads = auto -o $ol_with_threads = yes \
	-o $ol_with_threads = lwp ; then

	dnl check for SunOS5 LWP
	AC_CHECK_HEADERS(thread.h synch.h)
	if test $ac_cv_header_thread_h = yes -a $ac_cv_header_synch_h = yes ; then
		AC_CHECK_LIB(thread, thr_create, [have_thr=yes], [have_thr=no])

		if test $have_thr = yes ; then
			AC_DEFINE(HAVE_THR,1,
				[if you have Solaris LWP (thr) package])
			LTHREAD_LIBS="$LTHREAD_LIBS -lthread"
			ol_link_threads=thr

			if test $ol_with_yielding_select = auto ; then
				ol_with_yielding_select=yes
			fi

			dnl Check for setconcurreny functions
			AC_CHECK_FUNCS(	\
				thr_setconcurrency \
				thr_getconcurrency \
			)
		fi
	fi

	dnl check for SunOS4 LWP
	AC_CHECK_HEADERS(lwp/lwp.h)
	if test $ac_cv_header_lwp_lwp_h = yes ; then
		AC_CHECK_LIB(lwp, lwp_create, [have_lwp=yes], [have_lwp=no])

		if test $have_lwp = yes ; then
			AC_DEFINE(HAVE_LWP,1,
				[if you have SunOS LWP package])
			LTHREAD_LIBS="$LTHREAD_LIBS -llwp"
			ol_link_threads=lwp

			if test $ol_with_yielding_select = auto ; then
				ol_with_yielding_select=no
			fi
		fi
	fi
fi

if test $ol_with_yielding_select = yes ; then
	AC_DEFINE(HAVE_YIELDING_SELECT,1,
		[define if select implicitly yields])
fi

if test $ol_with_threads = manual ; then
	dnl User thinks he can manually configure threads.
	ol_link_threads=yes

	AC_MSG_WARN([thread defines and link options must be set manually])

	AC_CHECK_HEADERS(pthread.h sched.h)
	AC_CHECK_FUNCS(sched_yield pthread_yield)
	OL_HEADER_LINUX_THREADS

	AC_CHECK_HEADERS(mach/cthreads.h)
	AC_CHECK_HEADERS(lwp/lwp.h)
	AC_CHECK_HEADERS(thread.h synch.h)
fi

if test $ol_link_threads != no -a $ol_link_threads != nt ; then  
	dnl needed to get reentrant/threadsafe versions
	dnl
	AC_DEFINE(REENTRANT,1)
	AC_DEFINE(_REENTRANT,1)
	AC_DEFINE(THREAD_SAFE,1)
	AC_DEFINE(_THREAD_SAFE,1)
	AC_DEFINE(THREADSAFE,1)
	AC_DEFINE(_THREADSAFE,1)
	AC_DEFINE(_SGI_MP_SOURCE,1)

	dnl The errno declaration may dependent upon _REENTRANT.
	dnl If it does, we must link with thread support.
	AC_CACHE_CHECK([for thread specific errno],
		[ol_cv_errno_thread_specific], [
		AC_TRY_LINK([#include <errno.h>], [errno = 0;],
			[ol_cv_errno_thread_specific=yes],
			[ol_cv_errno_thread_specific=no])
	])

	dnl The h_errno declaration may dependent upon _REENTRANT.
	dnl If it does, we must link with thread support.
	AC_CACHE_CHECK([for thread specific h_errno],
		[ol_cv_h_errno_thread_specific], [
		AC_TRY_LINK([#include <netdb.h>], [h_errno = 0;],
			[ol_cv_h_errno_thread_specific=yes],
			[ol_cv_h_errno_thread_specific=no])
	])

	if test $ol_cv_errno_thread_specific != yes \
		-o $ol_cv_h_errno_thread_specific != yes ; then
		LIBS="$LTHREAD_LIBS $LIBS"
		LTHREAD_LIBS=""
	fi

dnl When in thread environment, use 
dnl		#if defined( HAVE_REENTRANT_FUNCTIONS ) \ 
dnl			|| defined( HAVE_FUNC_R )
dnl			func_r(...);
dnl		#else
dnl		#	if defined( HAVE_THREADS ) 
dnl				/* lock */
dnl		#	endif
dnl				func(...);
dnl		#	if defined( HAVE_THREADS ) 
dnl				/* unlock */
dnl		#	endif
dnl		#endif
dnl
dnl HAVE_REENTRANT_FUNCTIONS is derived from:
dnl		_POSIX_REENTRANT_FUNCTIONS
dnl		_POSIX_THREAD_SAFE_FUNCTIONS
dnl		_POSIX_THREADSAFE_FUNCTIONS
dnl
dnl		and is currently defined in lthread.h
dnl
dnl HAVE_THREADS is defined by lthread.h iff -UNO_THREADS
dnl 
dnl libldap/*.c should only include <lthread.h> iff
dnl LDAP_R_COMPILE is defined.  ie:
dnl		#ifdef LDAP_R_COMPILE
dnl		#	include LDAP_R_COMPILE
dnl		#endif
dnl
dnl LDAP_R_COMPILE is defined by libldap_r/Makefile.in
dnl specifically for compiling the threadsafe version of
dnl	the ldap library (-lldap_r).
dnl		
dnl	dnl check for reentrant/threadsafe functions
dnl	dnl
dnl	dnl note: these should only be used when linking
dnl	dnl       with $LTHREAD_LIBS
dnl	dnl
dnl	save_CPPFLAGS="$CPPFLAGS"
dnl	save_LIBS="$LIBS"
dnl	LIBS="$LTHREAD_LIBS $LIBS"
dnl	AC_CHECK_FUNCS(	\
dnl		gmtime_r \
dnl		gethostbyaddr_r gethostbyname_r \
dnl		feof_unlocked unlocked_feof \
dnl		putc_unlocked unlocked_putc \
dnl		flockfile ftrylockfile \
dnl	)
dnl	CPPFLAGS="$save_CPPFLAGS"
dnl	LIBS="$save_LIBS"
fi  

if test $ol_link_threads = no ; then
	if test $ol_with_threads = yes ; then
		AC_MSG_ERROR([no suitable thread support])
	fi

	if test $ol_with_threads = auto ; then
		AC_MSG_WARN([no suitable thread support, disabling threads])
		ol_with_threads=no
	fi

	AC_DEFINE(NO_THREADS,1,
		[define if you have (or want) no threads])
	LTHREAD_LIBS=""
fi

if test $ol_link_threads != no ; then
	AC_DEFINE(LDAP_API_FEATURE_X_OPENLDAP_THREAD_SAFE,1)
fi

dnl ----------------------------------------------------------------
ol_link_ldbm=no 

if test $ol_with_ldbm_api = auto \
	-o $ol_with_ldbm_api = berkeley \
	-o $ol_with_ldbm_api = bcompat ; then

	if test $ol_with_ldbm_api = bcompat; then \
		OL_BERKELEY_COMPAT_DB
	else
		OL_BERKELEY_DB
	fi

	if test $ol_cv_berkeley_db != no ; then
		AC_DEFINE(HAVE_BERKELEY_DB,1,
			[define this if Berkeley DB is available])

		ol_link_ldbm=berkeley
		ol_with_ldbm_api=db

		if test $ol_with_ldbm_type = hash ; then
			AC_DEFINE(LDBM_USE_DBHASH,1,
				[define this to use DBHASH w/ LDBM backend])
		else
			AC_DEFINE(LDBM_USE_DBBTREE,1,
				[define this to use DBBTREE w/ LDBM backend])
		fi

		dnl $ol_cv_lib_db should be yes or -ldb
		dnl (it could be no, but that would be an error
		if test $ol_cv_lib_db != yes ; then
			LDBM_LIBS="$LDBM_LIBS $ol_cv_lib_db"
		fi
	fi
fi

if test $ol_link_ldbm = no -a $ol_with_ldbm_type = btree ; then
	AC_MSG_WARN(Could not find LDBM with BTREE support)
	ol_with_ldbm_api=none
fi

if test $ol_with_ldbm_api = auto -o $ol_with_ldbm_api = mdbm ; then
	OL_MDBM

	if test $ol_cv_mdbm = yes ; then
		ol_link_ldbm=mdbm
		ol_with_ldbm_api=mdbm
		if test $ol_cv_lib_mdbm != yes ; then
			LDBM_LIBS="$LDBM_LIBS $ol_cv_lib_mdbm"
		fi
	fi
fi

if test $ol_with_ldbm_api = auto -o $ol_with_ldbm_api = gdbm ; then
	OL_GDBM

	if test $ol_cv_gdbm = yes ; then
		ol_link_ldbm=gdbm
		ol_with_ldbm_api=gdbm

		if test $ol_cv_lib_gdbm != yes ; then
			LDBM_LIBS="$LDBM_LIBS $ol_cv_lib_gdbm"
		fi
	fi
fi

if test $ol_with_ldbm_api = ndbm ; then
	OL_NDBM

	if test $ol_cv_ndbm = yes ; then
		ol_link_ldbm=ndbm
		ol_with_ldbm_api=ndbm

		if test $ol_cv_lib_ndbm != yes ; then
			LDBM_LIBS="$LDBM_LIBS $ol_cv_lib_ndbm"
		fi
	fi
fi

if test $ol_link_ldbm = no -a $ol_enable_ldbm != no ; then
	AC_MSG_WARN(could not find suitable LDBM backend)
	if test $ol_enable_ldbm = yes ; then
		AC_MSG_ERROR(select appropriate LDBM options or disable)
	fi

	AC_MSG_WARN(disabling LDBM)
	ol_enable_ldbm=no
fi

dnl ----------------------------------------------------------------
if test $ol_enable_dynamic = yes -a $enable_shared = yes ; then
	LINK_BINS_DYNAMIC="yes"
else
	LINK_BINS_DYNAMIC="no"
fi

dnl ----------------------------------------------------------------
if test $ol_enable_wrappers != no ; then
	AC_CHECK_HEADERS(tcpd.h)

	if test $ac_cv_header_tcpd_h != yes ; then
		have_wrappers=no
	else
		AC_TRY_COMPILE([
int allow_severity = 0;
int deny_severity  = 0;
		],[hosts_access()],[have_wrappers=yes],[have_wrappers=no])
	fi

	if test $have_wrappers = yes ; then
		AC_DEFINE(HAVE_TCPD,1, [define if you have -lwrap])
		WRAP_LIBS="-lwrap"

		dnl We add another check for -lnsl since some libwrap's
		dnl need it, but it isn't always included from above
		AC_CHECK_LIB(nsl, main)
	else
		AC_MSG_WARN(could not find -lwrap)
		if test $ol_enable_wrappers = yes ; then
			AC_MSG_ERROR(could not find wrappers, select appropriate options or disable)
		fi

		AC_MSG_WARN(disabling wrappers support)
		ol_enable_wrappers=no
		WRAP_LIBS=""
	fi
fi

dnl ----------------------------------------------------------------
if test $ol_enable_syslog != no ; then
	AC_CHECK_FUNC(openlog)
	if test $ac_cv_func_openlog = no -a $ol_enable_syslog = yes; then
		AC_MSG_ERROR(could not find syslog, select appropriate options or disable)
	fi
	ol_enable_syslog=$ac_cv_func_openlog
fi

dnl ----------------------------------------------------------------
dnl SQL
ol_link_sql=no
if test $ol_enable_sql != no ; then
	AC_CHECK_LIB(iodbc,SQLDriverConnect,[have_iodbc=yes],[have_iodbc=no])
	if test $have_iodbc = yes ; then
		ol_link_sql="-liodbc"
	else
		AC_CHECK_LIB(odbc,SQLDriverConnect,[have_odbc=yes],[have_odbc=no])
		if test $have_odbc = yes ; then
			ol_link_sql="-lodbc"
		fi
	fi

	if test $ol_link_sql != no ; then
		SLAPD_SQL_LIBS="$ol_link_sql"

	elif test $ol_enable_sql != auto ; then
		AC_MSG_ERROR([could not locate suitable ODBC library])
	fi
fi

dnl ----------------------------------------------------------------
dnl ud needs termcap (should insert check here)
ol_link_termcap=no
AC_CHECK_HEADERS(termcap.h ncurses.h)

if test $ol_link_termcap = no ; then
	AC_CHECK_LIB(termcap, tputs, [have_termcap=yes], [have_termcap=no])
	if test $have_termcap = yes ; then
		AC_DEFINE(HAVE_TERMCAP, 1, [define if you have -ltermcap])
		ol_link_termcap=yes
		TERMCAP_LIBS=-ltermcap
	fi
fi

if test $ol_link_termcap = no ; then
	AC_CHECK_LIB(ncurses, initscr, [have_ncurses=yes], [have_ncurses=no])
	if test $have_ncurses = yes ; then
		AC_DEFINE(HAVE_NCURSES, 1, [define if you have -lncurses])
		ol_link_termcap=yes
		TERMCAP_LIBS=-lncurses
	fi
fi

if test $ol_link_termcap = no ; then
	AC_DEFINE(NO_TERMCAP,1, [define if you have no termcap support])
	TERMCAP_LIBS=
fi

dnl ----------------------------------------------------------------
dnl
dnl Check for Cyrus SASL
dnl
ol_link_sasl=no
ol_link_spasswd=no
if test $ol_with_cyrus_sasl != no ; then
	AC_CHECK_HEADERS(sasl.h)

	if test $ac_cv_header_sasl_h = yes ; then
		AC_CHECK_LIB(sasl, sasl_client_init,
			[have_cyrus_sasl=yes], [have_cyrus_sasl=no])

		if test $have_cyrus_sasl != no ; then
			SASL_LIBS="-lsasl"
			AC_DEFINE(HAVE_CYRUS_SASL,1,[define if you have Cyrus SASL])
			ol_link_sasl=yes
		fi
	fi

	if test $ol_link_sasl = no ; then
		if test $ol_with_cyrus_sasl != auto ; then
			AC_MSG_ERROR([Could not locate Cyrus SASL])
		else
			AC_MSG_WARN([Could not locate Cyrus SASL])
			AC_MSG_WARN([SASL authentication not supported!])
			if test $ol_link_tls = no ; then
				AC_MSG_WARN([Strong authentication not supported!])
			fi
		fi

	elif test $ol_enable_spasswd != no ; then
		ol_link_spasswd=yes
	fi

else
	AC_MSG_WARN([SASL authentication not supported!])
	if test $ol_link_tls = no ; then
		AC_MSG_WARN([Strong authentication not supported!])
	fi
fi

dnl ----------------------------------------------------------------
dnl Check for entropy sources
if test $cross_compiling != yes ; then
	dev=no
	if test -r /dev/urandom ; then
		dev="/dev/urandom";
	elif test -r /idev/urandom ; then
		dev="/idev/urandom";
	elif test -r /dev/srandom ; then
		dev="/dev/srandom";
	elif test -r /dev/random ; then
		dev="/dev/random";
	elif test -r /idev/random ; then
		dev="/idev/random";
	fi

	if test $dev != no ; then
		AC_DEFINE_UNQUOTED(URANDOM_DEVICE,"$dev",[set to urandom device])
	fi
fi

dnl ----------------------------------------------------------------
dnl
dnl Check for fetch URL support
dnl		should be extended to support other fetch URL APIs
dnl
ol_link_fetch=no
if test $ol_with_fetch != no ; then
	OL_LIB_FETCH

	if test $ol_cv_lib_fetch != no ; then
		LDIF_LIBS="$LDIF_LIBS $ol_link_fetch"
		ol_link_fetch=freebsd

	elif test $ol_with_fetch != auto ; then
		AC_MSG_ERROR(no suitable API for --with-fetch=$ol_with_fetch)
	fi 
fi

dnl ----------------------------------------------------------------
dnl
dnl Check for GNU readline
dnl
ol_link_readline=no
if test $ol_with_readline != no ; then
	AC_CHECK_HEADERS(readline/readline.h readline/history.h)

	if test $ac_cv_header_readline_readline_h = yes ; then
		save_LIBS="$LIBS"
		LIBS="$TERMCAP_LIBS $LIBS"
		AC_CHECK_LIB(readline, readline, 
			[have_readline=yes], [have_readline=no])
		LIBS="$save_LIBS"
			
		if test $have_readline = yes ; then
			ol_with_readline=found
			ol_link_readline=yes

			READLINE_LIBS="-lreadline"
		fi
	fi
fi

if test $ol_link_readline = yes ; then
	AC_DEFINE(HAVE_READLINE, 1, [define if you have -lreadline])
fi


dnl ----------------------------------------------------------------
dnl FreeBSD (and others) have crypt(3) in -lcrypt
if test $ol_enable_crypt != no ; then
	AC_CHECK_FUNC(crypt, [have_crypt=yes], [
		AC_CHECK_LIB(crypt, crypt, [LUTIL_LIBS="$LUTIL_LIBS -lcrypt"
			have_crypt=yes], [have_crypt=no])])

	if test $have_crypt = yes ; then
		AC_DEFINE(HAVE_CRYPT,1, [define if crypt(3) is available])
	else
		AC_MSG_WARN(could not find crypt)
		if test $ol_enable_crypt = yes ; then
			AC_MSG_ERROR(could not find crypt, select appropriate options or disable)
		fi

		AC_MSG_WARN(disabling crypt support)
		ol_enable_crypt=no
	fi
fi

dnl ----------------------------------------------------------------
dnl FreeBSD (and others) have setproctitle(3) in -lutil
if test $ol_enable_proctitle != no ; then
	AC_CHECK_FUNC(setproctitle,	[have_setproctitle=yes], [
		AC_CHECK_LIB(util, setproctitle,
			[have_setproctitle=yes
			LUTIL_LIBS="$LUTIL_LIBS -lutil"],
			[have_setproctitle=no
			LIBOBJS="$LIBOBJS setproctitle.o"
			LIBSRCS="$LIBSRCS setproctitle.c"])])

	if test $have_setproctitle = yes ; then
		AC_DEFINE(HAVE_SETPROCTITLE,1,
			[define if setproctitle(3) is available])
	fi
fi

dnl ----------------------------------------------------------------
dnl Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AM_TYPE_PTRDIFF_T
AC_TYPE_SIGNAL
AC_TYPE_SIZE_T

AC_CHECK_TYPE(ssize_t, [signed int])
AC_CHECK_TYPE(caddr_t,	[char *])

OL_TYPE_SOCKLEN_T
AC_STRUCT_ST_BLKSIZE
AC_HEADER_TIME
AC_STRUCT_TM
AC_TYPE_UID_T
OL_TYPE_SIG_ATOMIC_T

dnl AC_TYPE_GETGROUPS

OL_STRUCT_PASSWD_PW_GECOS
OL_STRUCT_PASSWD_PW_PASSWD

OL_C_UPPER_LOWER
AC_C_CONST
OL_C_VOLATILE

if test $cross_compiling = yes ; then
	AC_DEFINE(CROSS_COMPILING, 1, [define if cross compiling])
else
	AC_C_BIGENDIAN
fi

AC_COMPILE_CHECK_SIZEOF(short) 
AC_COMPILE_CHECK_SIZEOF(int) 
AC_COMPILE_CHECK_SIZEOF(long)

if test "$ac_cv_sizeof_int" -lt 4 ; then
	AC_MSG_WARN([OpenLDAP requires 'int' to be 32 bits or greater.])

	AC_DEFINE(LBER_INT_T,long)
else
	AC_DEFINE(LBER_INT_T,int)
fi

AC_DEFINE(LBER_LEN_T,long)
AC_DEFINE(LBER_SOCKET_T,int)
AC_DEFINE(LBER_TAG_T,long)

dnl ----------------------------------------------------------------
dnl Checks for library functions.
AC_FUNC_MEMCMP
dnl AM_FUNC_MKTIME dnl checks for sys/time.h and unistd.h
AC_FUNC_STRFTIME
dnl AM_FUNC_STRTOD

OL_FUNC_INET_ATON

dnl Check for NT specific routines
AC_CHECK_FUNC(_spawnlp, AC_DEFINE(HAVE_SPAWNLP,1,[if you have spawnlp()]))

AC_CHECK_FUNC(_snprintf, [ac_cv_func_snprintf=yes
	AC_DEFINE(snprintf, _snprintf, [define to snprintf routine])
])

AC_CHECK_FUNC(_vsnprintf, [ac_cv_func_vsnprintf=yes
	AC_DEFINE(vsnprintf, _vsnprintf, [define to vsnprintf routine])
])

AC_FUNC_VPRINTF

if test $ac_cv_func_vprintf = yes ; then
	dnl check for vsnprintf
	AC_CHECK_FUNCS(vsnprintf vsprintf)
fi

AC_CHECK_FUNCS(		\
	bcopy			\
	closesocket		\
	chroot			\
	endgrent		\
	endpwent		\
	fcntl			\
	flock			\
	getdtablesize	\
	getgrgid		\
	gethostname		\
	getpass			\
	getpassphrase	\
	getpwuid		\
	getpwnam		\
	getspnam		\
	gettimeofday	\
	initgroups		\
	lockf			\
	memcpy			\
	memmove			\
	mkstemp			\
	pipe			\
	read			\
	recv			\
	recvfrom		\
	setpwfile		\
	setgid			\
	setegid			\
	setsid			\
	setuid			\
	seteuid			\
	sigaction		\
	signal			\
	sigset			\
	strdup			\
	strerror		\
	strpbrk			\
	strrchr			\
	strsep			\
	strstr			\
	strtol			\
	strtoul			\
	strspn			\
	sysconf			\
	usleep			\
	waitpid			\
	wait4			\
	write			\
	send			\
	sendto			\
)

dnl We actually may need to replace more than this.
AC_REPLACE_FUNCS(getopt tempnam)

if test "$ac_cv_func_getopt" != yes; then
    LIBSRCS="$LIBSRCS getopt.c"
fi

if test "$ac_cv_func_tempnam" != yes; then
    LIBSRCS="$LIBSRCS tempnam.c"
fi

dnl ----------------------------------------------------------------
# Check Configuration
OL_SYS_ERRLIST

dnl ----------------------------------------------------------------
dnl Sort out defines

if test "$ol_enable_debug" != no ; then
	AC_DEFINE(LDAP_DEBUG,1,
		[define this to add debugging code])
fi
if test "$ol_enable_syslog" = yes ; then
	AC_DEFINE(LDAP_SYSLOG,1,
		[define this to add syslog code])
fi
if test "$ol_enable_cache" = no ; then
	AC_DEFINE(LDAP_NOCACHE,1,
		[define this to remove -lldap cache support])
fi
if test "$ol_link_kbind" != no ; then
	AC_DEFINE(LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND,LDAP_VENDOR_VERSION)
fi
if test "$ol_enable_proctitle" != no ; then
	AC_DEFINE(LDAP_PROCTITLE,1,
		[define this for LDAP process title support])
fi
if test "$ol_enable_referrals" != no ; then
	AC_DEFINE(LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS,LDAP_VENDOR_VERSION)
fi
if test "$ol_enable_local" != no; then
	AC_DEFINE(LDAP_PF_LOCAL,1,[define to support PF_LOCAL])
fi
if test "$ol_link_ipv6" != no; then
	AC_DEFINE(LDAP_PF_INET6,1,[define to support PF_INET6])
fi
if test "$ol_enable_cleartext" != no ; then
	AC_DEFINE(SLAPD_CLEARTEXT,1,[define to support cleartext passwords])
fi
if test "$ol_enable_crypt" != no ; then
	AC_DEFINE(SLAPD_CRYPT,1,[define to support crypt(3) passwords])
fi
if test "$ol_link_kpasswd" != no ; then
	AC_DEFINE(SLAPD_KPASSWD,1,[define to support Kerberos passwords])
fi
if test "$ol_link_spasswd" != no ; then
	AC_DEFINE(SLAPD_SPASSWD,1,[define to support SASL passwords])
fi
dnl if test "$ol_enable_multimaster" != no ; then
dnl	AC_DEFINE(SLAPD_MULTIMASTER,1,[define to support multimaster replication])
dnl fi
if test "$ol_enable_phonetic" != no ; then
	AC_DEFINE(SLAPD_PHONETIC,1,[define to support phonetic])
fi
if test "$ol_enable_rlookups" != no ; then
	AC_DEFINE(SLAPD_RLOOKUPS,1,[define to support reverse lookups])
fi
if test "$ol_enable_aci" != no ; then
	AC_DEFINE(SLAPD_ACI_ENABLED,1,[define to support per-object ACIs])
fi

if test "$ol_link_modules" != no ; then
	AC_DEFINE(SLAPD_MODULES,1,[define to support modules])
	BUILD_SLAPD=yes
	SLAPD_MODULES_LDFLAGS="-dlopen self"
fi

if test "$ol_link_dnssrv" != no ; then
	AC_DEFINE(SLAPD_DNSSRV,1,[define to support DNS SRV backend])
	BUILD_SLAPD=yes
	BUILD_DNSSRV=yes
	if test "$ol_with_dnssrv_module" != static ; then
		AC_DEFINE(SLAPD_DNSSRV_DYNAMIC,1,
			[define to support dynamic DNS SRV backend])
		BUILD_DNSSRV=mod
		BUILD_DNSSRV_DYNAMIC=shared
		SLAPD_MODULES_LIST="$SLAPD_MODULES_LIST -dlopen \$(SLAP_DIR)back-dnssrv/back_dnssrv.la"
	fi
fi

if test "$ol_enable_ldap" != no ; then
	AC_DEFINE(SLAPD_LDAP,1,[define to support LDAP backend])
	BUILD_SLAPD=yes
	BUILD_LDAP=yes
	if test "$ol_with_ldap_module" != static ; then
		AC_DEFINE(SLAPD_LDAP_DYNAMIC,1,
			[define to support dynamic LDAP backend])
		BUILD_LDAP=mod
		BUILD_LDAP_DYNAMIC=shared
		SLAPD_MODULES_LIST="$SLAPD_MODULES_LIST -dlopen \$(SLAP_DIR)back-ldap/back_ldap.la"
	fi
fi

if test "$ol_link_ldbm" != no ; then
	AC_DEFINE(SLAPD_LDBM,1,[define to support LDBM backend])
	BUILD_SLAPD=yes
	BUILD_LDBM=yes
	if test "$ol_with_ldbm_module" != static ; then
		AC_DEFINE(SLAPD_LDBM_DYNAMIC,1,
			[define to support dynamic LDBM backend])
		BUILD_LDBM=mod
		BUILD_LDBM_DYNAMIC=shared
		SLAPD_MODULES_LIST="$SLAPD_MODULES_LIST -dlopen \$(SLAP_DIR)back-ldbm/back_ldbm.la"
	fi
fi

if test "$ol_enable_passwd" != no ; then
	AC_DEFINE(SLAPD_PASSWD,1,[define to support PASSWD backend])
	BUILD_SLAPD=yes
	BUILD_PASSWD=yes
	if test "$ol_with_passwd_module" != static ; then
		AC_DEFINE(SLAPD_PASSWD_DYNAMIC,1,
			[define to support dynamic PASSWD backend])
		BUILD_PASSWD=mod
		BUILD_PASSWD_DYNAMIC=shared
		SLAPD_MODULES_LIST="$SLAPD_MODULES_LIST -dlopen \$(SLAP_DIR)back-passwd/back_passwd.la"
	fi
fi

if test "$ol_enable_shell" != no ; then
	AC_DEFINE(SLAPD_SHELL,1,[define to support SHELL backend])
	BUILD_SLAPD=yes
	BUILD_SHELL=yes
	if test "$ol_with_shell_module" != static ; then
		AC_DEFINE(SLAPD_SHELL_DYNAMIC,1,
			[define to support dynamic SHELL backend])
		BUILD_SHELL=mod
		BUILD_SHELL_DYNAMIC=shared
		SLAPD_MODULES_LIST="$SLAPD_MODULES_LIST -dlopen \$(SLAP_DIR)back-shell/back_shell.la"
	fi
fi

if test "$ol_enable_sql" != no ; then
	AC_DEFINE(SLAPD_SQL,1,[define to support SQL backend])
	BUILD_SLAPD=yes
	BUILD_SQL=yes
	if test "$ol_with_sql_module" != static; then
		AC_DEFINE(SLAPD_SQL_DYNAMIC,1,
			[define to support dynamic SQL backend])
		BUILD_SQL=mod
		BUILD_SQL_DYNAMIC=shared
		SLAPD_MODULES_LIST="$SLAPD_MODULES_LIST -dlopen \$(SLAP_DIR)back-sql/back_sql.la"
	fi
fi

if test "$ol_enable_slurpd" != no -a "$ol_link_threads" != no -a \
	$BUILD_SLAPD = yes ; then
	BUILD_SLURPD=yes
fi

dnl ----------------------------------------------------------------

if test "$LINK_BINS_DYNAMIC" = yes; then
    LIB_LINKAGE=DYN
    LT_LIB_LINKAGE=shared
else
    LIB_LINKAGE=STAT
    LT_LIB_LINKAGE=static
fi

if test "$ac_cv_mingw32" = yes ; then
    PLAT=NT
    DYN_EXT=dll
else
    PLAT=UNIX
    DYN_EXT=so
fi

AC_SUBST(LIBSRCS)

AC_SUBST(PLAT)
AC_SUBST(LIB_LINKAGE)
AC_SUBST(LT_LIB_LINKAGE)
AC_SUBST(DYN_EXT)

AC_SUBST(BUILD_SLAPD)
  AC_SUBST(BUILD_DNSSRV)
  AC_SUBST(BUILD_LDAP)
  AC_SUBST(BUILD_LDBM)
  AC_SUBST(BUILD_PASSWD)
  AC_SUBST(BUILD_SHELL)
  AC_SUBST(BUILD_SQL)
  AC_SUBST(BUILD_DNSSRV_DYNAMIC)
  AC_SUBST(BUILD_LDAP_DYNAMIC)
  AC_SUBST(BUILD_LDBM_DYNAMIC)
  AC_SUBST(BUILD_PASSWD_DYNAMIC)
  AC_SUBST(BUILD_SHELL_DYNAMIC)
  AC_SUBST(BUILD_SQL_DYNAMIC)
AC_SUBST(BUILD_SLURPD)

AC_SUBST(LDAP_LIBS)
AC_SUBST(LDIF_LIBS)
AC_SUBST(SLAPD_LIBS)
AC_SUBST(SLURPD_LIBS)
AC_SUBST(LDBM_LIBS)
AC_SUBST(LTHREAD_LIBS)
AC_SUBST(LUTIL_LIBS)
AC_SUBST(WRAP_LIBS)
AC_SUBST(LINK_BINS_DYNAMIC)

AC_SUBST(SLAPD_MODULES_CPPFLAGS)
AC_SUBST(SLAPD_MODULES_LDFLAGS)
AC_SUBST(SLAPD_MODULES_LIST)

AC_SUBST(KRB4_LIBS)
AC_SUBST(KRB5_LIBS)
AC_SUBST(READLINE_LIBS)
AC_SUBST(SASL_LIBS)
AC_SUBST(TERMCAP_LIBS)
AC_SUBST(TLS_LIBS)
AC_SUBST(MODULES_LIBS)
AC_SUBST(AUTH_LIBS)

AC_SUBST(SLAPD_SQL_LDFLAGS)
AC_SUBST(SLAPD_SQL_LIBS)
AC_SUBST(SLAPD_SQL_INCLUDES)

dnl ----------------------------------------------------------------
dnl final output
dnl

AC_OUTPUT( \
Makefile:build/top.mk:Makefile.in:build/dir.mk \
doc/Makefile:build/top.mk:doc/Makefile.in:build/dir.mk \
doc/man/Makefile:build/top.mk:doc/man/Makefile.in:build/dir.mk \
doc/man/man1/Makefile:build/top.mk:doc/man/man1/Makefile.in:build/man.mk \
doc/man/man3/Makefile:build/top.mk:doc/man/man3/Makefile.in:build/man.mk \
doc/man/man5/Makefile:build/top.mk:doc/man/man5/Makefile.in:build/man.mk \
doc/man/man8/Makefile:build/top.mk:doc/man/man8/Makefile.in:build/man.mk \
clients/Makefile:build/top.mk:clients/Makefile.in:build/dir.mk \
clients/finger/Makefile:build/top.mk:clients/finger/Makefile.in:build/rules.mk \
clients/fax500/Makefile:build/top.mk:clients/fax500/Makefile.in:build/rules.mk \
clients/gopher/Makefile:build/top.mk:clients/gopher/Makefile.in:build/rules.mk \
clients/mail500/Makefile:build/top.mk:clients/mail500/Makefile.in:build/rules.mk \
clients/rcpt500/Makefile:build/top.mk:clients/rcpt500/Makefile.in:build/rules.mk \
clients/ud/Makefile:build/top.mk:clients/ud/Makefile.in:build/rules.mk \
clients/maildap/Makefile:build/top.mk:clients/maildap/Makefile.in:build/rules.mk \
clients/tools/Makefile:build/top.mk:clients/tools/Makefile.in:build/rules.mk \
include/Makefile:build/top.mk:include/Makefile.in \
libraries/Makefile:build/top.mk:libraries/Makefile.in:build/dir.mk 	\
libraries/libavl/Makefile:build/top.mk:libraries/libavl/Makefile.in:build/lib.mk:build/lib-static.mk	\
libraries/liblber/Makefile:build/top.mk:libraries/liblber/Makefile.in:build/lib.mk:build/lib-shared.mk	\
libraries/libldap/Makefile:build/top.mk:libraries/libldap/Makefile.in:build/lib.mk:build/lib-shared.mk	\
libraries/libldap_r/Makefile:build/top.mk:libraries/libldap_r/Makefile.in:build/lib.mk:build/lib-shared.mk	\
libraries/libldbm/Makefile:build/top.mk:libraries/libldbm/Makefile.in:build/lib.mk:build/lib-static.mk	\
libraries/libldif/Makefile:build/top.mk:libraries/libldif/Makefile.in:build/lib.mk:build/lib-static.mk	\
libraries/liblutil/Makefile:build/top.mk:libraries/liblutil/Makefile.in:build/lib.mk:build/lib-static.mk	\
servers/Makefile:build/top.mk:servers/Makefile.in:build/dir.mk \
servers/slapd/Makefile:build/top.mk:servers/slapd/Makefile.in:build/srv.mk \
servers/slapd/back-dnssrv/Makefile:build/top.mk:servers/slapd/back-dnssrv/Makefile.in:build/mod.mk \
servers/slapd/back-ldap/Makefile:build/top.mk:servers/slapd/back-ldap/Makefile.in:build/mod.mk \
servers/slapd/back-ldbm/Makefile:build/top.mk:servers/slapd/back-ldbm/Makefile.in:build/mod.mk \
servers/slapd/back-passwd/Makefile:build/top.mk:servers/slapd/back-passwd/Makefile.in:build/mod.mk \
servers/slapd/back-shell/Makefile:build/top.mk:servers/slapd/back-shell/Makefile.in:build/mod.mk \
servers/slapd/back-sql/Makefile:build/top.mk:servers/slapd/back-sql/Makefile.in:build/mod.mk \
servers/slapd/shell-backends/Makefile:build/top.mk:servers/slapd/shell-backends/Makefile.in:build/srv.mk \
servers/slapd/tools/Makefile:build/top.mk:servers/slapd/tools/Makefile.in \
servers/slurpd/Makefile:build/top.mk:servers/slurpd/Makefile.in:build/srv.mk \
tests/Makefile:build/top.mk:tests/Makefile.in:build/dir.mk \
tests/progs/Makefile:build/top.mk:tests/progs/Makefile.in:build/rules.mk \
contrib/Makefile:build/top.mk:contrib/Makefile.in:build/dir.mk \
contrib/saucer/Makefile:build/top.mk:contrib/saucer/Makefile.in:build/rules.mk \
,[
date > stamp-h
echo Please \"make depend\" to build dependencies
])