dnl $OpenLDAP$
dnl
dnl Copyright 1998-2000 The OpenLDAP Foundation.  All Rights Reserved.
dnl 
dnl Redistribution and use in source and binary forms are permitted only
dnl as authorized by the OpenLDAP Public License.  A copy of this
dnl license is available at http://www.OpenLDAP.org/license.html or
dnl in file LICENSE in the 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 1998-2000 The OpenLDAP Foundation.  All Rights Reserved.
# 
# Redistribution and use in source and binary forms 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 1998-2000 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], yes)dnl
OL_ARG_ENABLE(referrals,[  --enable-referrals	  enable V2 Referrals extension], yes)dnl
OL_ARG_ENABLE(kbind,[  --enable-kbind	  enable V2 Kerberos IV bind], 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 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
	if test $ol_enable_multimaster = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-multimaster 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])
	fi
	ol_with_kerberos=yes
elif test $ol_enable_kbind = no -o $ol_enable_kpasswd = no ; then
	if test $ol_with_kerberos != no -a $ol_with_kerberos != auto ; then
		AC_MSG_WARN([Kerberos detection enabled unnecessarily]);
	fi
	ol_with_kerberos=no
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_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 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
ol_link_dnssrv=no
AC_CHECK_FUNC(res_query,:)
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" = 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 )

ol_link_ipv6=no
if test $ac_cv_func_getaddrinfo = no ; then
	if test $ol_enable_ipv6 = yes ; then
		AC_MSG_ERROR([IPv6 support requires getaddrinfo()])
	fi
else
	AC_CHECK_FUNCS( gai_strerror )

	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(krb5, main,
				[have_krb5=yes
				KRB5_LIBS="-lkrb5 -lcrypto -lcom_err"],
				[have_krb5=no],
				[-lcrypto -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 Kerberos5 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 -lcrypto -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 link with 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)
	if test $ac_cv_header_mach_cthreads_h = yes ; then
		ol_with_threads=found

		dnl check for cthread 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
			fi
		fi

		if test $ol_link_threads != no ; then
			: check for cthread specific functionality here
			AC_DEFINE(HAVE_MACH_CTHREADS,1,
				[define if you have Mach Cthreads])
		else
			AC_MSG_ERROR([could not link with Mach CThreads])
		fi
	fi

	if test $ol_with_threads = mach ; then
		AC_MSG_ERROR([could not locate 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

			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		\
	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			\
	snprintf		\
	strdup			\
	strerror		\
	strpbrk			\
	strrchr			\
	strsep			\
	strstr			\
	strtol			\
	strtoul			\
	strspn			\
	sysconf			\
	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 "$ol_enable_libui" = yes ; then
	AC_DEFINE(LDAP_LIBUI,1,
		[define this for LDAP User Interface support])
fi
if test "$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/liblunicode/Makefile:build/top.mk:libraries/liblunicode/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
])