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dnl $OpenLDAP$
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dnl This work is part of OpenLDAP Software <http://www.openldap.org/>.
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dnl
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dnl Copyright 1998-2021 The OpenLDAP Foundation.
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dnl All rights reserved.
dnl
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dnl Redistribution and use in source and binary forms, with or without
dnl modification, are permitted only as authorized by the OpenLDAP
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dnl Public License.
dnl
dnl A copy of this license is available in the file LICENSE in the
dnl top-level directory of the distribution or, alternatively, at
dnl <http://www.OpenLDAP.org/license.html>.
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dnl
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dnl ----------------------------------------------------------------
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dnl Disable config.cache!
define([AC_CACHE_LOAD], )dnl
define([AC_CACHE_SAVE], )dnl
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dnl ----------------------------------------------------------------
dnl Disable libtool 1.5 support for languages we don't use
define([AC_LIBTOOL_LANG_CXX_CONFIG], [:])dnl
define([AC_LIBTOOL_LANG_F77_CONFIG], [:])dnl
define([AC_LIBTOOL_LANG_GCJ_CONFIG], [:])dnl
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dnl ================================================================
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dnl Configure.in for OpenLDAP
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AC_COPYRIGHT([[Copyright 1998-2021 The OpenLDAP Foundation. All rights reserved.
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Restrictions apply, see COPYRIGHT and LICENSE files.]])
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AC_REVISION([$Id$])
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AC_INIT([OpenLDAP],,[https://bugs.openldap.org],,[https://www.openldap.org])
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AC_CONFIG_SRCDIR(build/version.sh)dnl
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dnl ----------------------------------------------------------------
dnl OpenLDAP Autoconf Macros
builtin(include, build/openldap.m4)dnl
dnl ================================================================
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m4_ifndef([PKG_PREREQ],
	[m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])

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AC_CONFIG_AUX_DIR(build)dnl
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AC_CONFIG_MACRO_DIRS([build])
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eval `$ac_aux_dir/version.sh`
if test -z "$OL_STRING"; then
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	AC_MSG_ERROR([could not determine version])
fi

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if test -f "$ac_aux_dir/shtool" && test ! -d $ac_aux_dir/shtool; then
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	ac_cv_shtool="$ac_aux_dir/shtool"
else
	AC_MSG_ERROR([no shtool found in $ac_aux_dir])
fi

SHTOOL="$ac_cv_shtool"
dnl AC_SUBST(SHTOOL)dnl
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TB="" TN=""
if test -t 1; then
	TB="`$SHTOOL echo -e '%B' 2>/dev/null`"
	TN="`$SHTOOL echo -e '%b' 2>/dev/null`"
fi
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OPENLDAP_REPO=""
if test -d $ac_aux_dir/../.git; then
	OPENLDAP_REPO="(from Git clone) "
elif test -d $ac_aux_dir/CVS; then
	OPENLDAP_REPO="(from CVS checkout) "
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fi

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echo "Configuring ${TB}${OL_STRING}${TN} ${OPENLDAP_REPO}..."
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dnl Determine host platform
dnl		we try not to use this for much
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AC_CANONICAL_TARGET([])
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AC_SUBST(PACKAGE,$OL_PACKAGE)dnl
AC_SUBST(VERSION,$OL_VERSION)dnl
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AC_DEFINE_UNQUOTED(OPENLDAP_PACKAGE,"$PACKAGE",Package)
AC_DEFINE_UNQUOTED(OPENLDAP_VERSION,"$VERSION",Version)
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AC_DEFINE_UNQUOTED(LDAP_VENDOR_VERSION,$OL_API_INC,Version)
AC_DEFINE_UNQUOTED(LDAP_VENDOR_VERSION_MAJOR,$OL_MAJOR,Major)
AC_DEFINE_UNQUOTED(LDAP_VENDOR_VERSION_MINOR,$OL_MINOR,Minor)
AC_DEFINE_UNQUOTED(LDAP_VENDOR_VERSION_PATCH,$OL_PATCH,Patch)
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OPENLDAP_LIBRELEASE=$OL_API_LIB_RELEASE
AC_SUBST(OPENLDAP_LIBRELEASE)dnl

OPENLDAP_LIBVERSION=$OL_API_LIB_VERSION
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AC_SUBST(OPENLDAP_LIBVERSION)dnl
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OPENLDAP_RELEASE_DATE="$OL_RELEASE_DATE"
AC_SUBST(OPENLDAP_RELEASE_DATE)dnl

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AC_PREREQ(2.69)dnl Required Autoconf version
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AH_TOP([
/* begin of portable.h.pre */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
 *
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 * Copyright 1998-2021 The OpenLDAP Foundation
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 * 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 in the file LICENSE in the
 * top-level directory of the distribution or, alternatively, at
 * <http://www.OpenLDAP.org/license.html>.
 */

#ifndef _LDAP_PORTABLE_H
#define _LDAP_PORTABLE_H

/* define this if needed to get reentrant functions */
#ifndef REENTRANT
#undef REENTRANT
#endif
#ifndef _REENTRANT
#undef _REENTRANT
#endif

/* define this if needed to get threadsafe functions */
#ifndef THREADSAFE
#undef THREADSAFE
#endif
#ifndef _THREADSAFE
#undef _THREADSAFE
#endif
#ifndef THREAD_SAFE
#undef THREAD_SAFE
#endif
#ifndef _THREAD_SAFE
#undef _THREAD_SAFE
#endif

#ifndef _SGI_MP_SOURCE
#undef _SGI_MP_SOURCE
#endif

/* end of portable.h.pre */
])
AH_BOTTOM([
/* begin of portable.h.post */

#ifdef _WIN32
	/* don't suck in all of the win32 api */
#	define WIN32_LEAN_AND_MEAN 1
#endif

#ifndef LDAP_NEEDS_PROTOTYPES
/* force LDAP_P to always include prototypes */
#define LDAP_NEEDS_PROTOTYPES 1
#endif

#ifndef LDAP_REL_ENG
#if (LDAP_VENDOR_VERSION == 000000) && !defined(LDAP_DEVEL)
#define LDAP_DEVEL
#endif
#if defined(LDAP_DEVEL) && !defined(LDAP_TEST)
#define LDAP_TEST
#endif
#endif

#ifdef HAVE_STDDEF_H
#	include <stddef.h>
#endif

#ifdef HAVE_EBCDIC 
/* ASCII/EBCDIC converting replacements for stdio funcs
 * vsnprintf and snprintf are used too, but they are already
 * checked by the configure script
 */
#define fputs ber_pvt_fputs
#define fgets ber_pvt_fgets
#define printf ber_pvt_printf
#define fprintf ber_pvt_fprintf
#define vfprintf ber_pvt_vfprintf
#define vsprintf ber_pvt_vsprintf
#endif

#include "ac/fdset.h"

#include "ldap_cdefs.h"
#include "ldap_features.h"
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#include "ac/assert.h"
#include "ac/localize.h"

#endif /* _LDAP_PORTABLE_H */
/* end of portable.h.post */
])

AC_CONFIG_HEADERS([include/portable.h:include/portable.hin])
AC_CONFIG_HEADERS([include/ldap_features.h:include/ldap_features.hin])
AC_CONFIG_HEADERS([include/lber_types.h:include/lber_types.hin])
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dnl ================================================================
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dnl Start Args
AC_MSG_CHECKING(configure arguments)
AC_PREFIX_DEFAULT(/usr/local)

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top_builddir=`pwd`
AC_SUBST(top_builddir)dnl

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

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AC_SUBST(ldap_subdir)dnl

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dnl ----------------------------------------------------------------
dnl General "enable" options
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dnl set default to traditional to enable the original debug style
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OL_ARG_ENABLE(debug, [AS_HELP_STRING([--enable-debug], [enable debugging])], yes, [no yes traditional])dnl
OL_ARG_ENABLE(dynamic, [AS_HELP_STRING([--enable-dynamic], [enable linking built binaries with dynamic libs])], auto)dnl
OL_ARG_ENABLE(syslog, [AS_HELP_STRING([--enable-syslog], [enable syslog support])], auto)dnl
dnl OL_ARG_ENABLE(referrals,[AS_HELP_STRING([--enable-referrals], [enable LDAPv2+ Referrals (experimental)])], no)dnl
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ol_enable_referrals=${ol_enable_referrals-no}
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OL_ARG_ENABLE(ipv6, [AS_HELP_STRING([--enable-ipv6], [enable IPv6 support])], auto)dnl
OL_ARG_ENABLE(local, [AS_HELP_STRING([--enable-local], [enable AF_LOCAL (AF_UNIX) socket support])], auto)dnl
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dnl ----------------------------------------------------------------
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dnl General "with" options
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OL_ARG_WITH(cyrus_sasl, [AS_HELP_STRING([--with-cyrus-sasl], [with Cyrus SASL support])],
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	auto, [auto yes no] )
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OL_ARG_WITH(systemd, [AS_HELP_STRING([--with-systemd],	[with systemd service notification support])],
	auto, [auto yes no] )
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OL_ARG_WITH(fetch, [AS_HELP_STRING([--with-fetch], [with fetch(3) URL support])],
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	auto, [auto yes no] )
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OL_ARG_WITH(threads,
	[AS_HELP_STRING([--with-threads], [with threads library auto|nt|posix|pth|lwp|manual])],
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	auto, [auto nt posix pth lwp yes no manual] )
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OL_ARG_WITH(tls,
	[AS_HELP_STRING([--with-tls], [with TLS/SSL support auto|openssl|gnutls])],
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	auto, [auto openssl gnutls yes no] )
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OL_ARG_WITH(yielding_select,
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	[AS_HELP_STRING([--with-yielding-select], [with implicitly yielding select])],
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	auto, [auto yes no manual] )
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OL_ARG_WITH(mp,
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	[AS_HELP_STRING([--with-mp], [with multiple precision statistics auto|longlong|long|bignum|gmp])],
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	auto, [auto longlong long bignum gmp yes no])
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OL_ARG_WITH(odbc,
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	[AS_HELP_STRING([--with-odbc], [with specific ODBC support iodbc|unixodbc|odbc32|auto])],
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	auto, [auto iodbc unixodbc odbc32] )
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dnl ----------------------------------------------------------------
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dnl Server options
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dnl ----------------------------------------------------------------

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dnl ----------------------------------------------------------------
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dnl SLAPD OPTIONS
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SlapdOptions="dynacl \
	aci \
	cleartext \
	crypt \
	spasswd \
	modules \
	rlookups \
	slapi \
	slp \
	wrappers"

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AC_ARG_ENABLE(xxslapdoptions,[
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SLAPD (Standalone LDAP Daemon) Options:])
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OL_ARG_ENABLE(slapd, [AS_HELP_STRING([--enable-slapd], [enable building slapd])], yes)dnl
OL_ARG_ENABLE(dynacl, [AS_HELP_STRING([--enable-dynacl], [enable run-time loadable ACL support (experimental)])], no)dnl
OL_ARG_ENABLE(aci, [AS_HELP_STRING([--enable-aci], [enable per-object ACIs (experimental)])], no, [no yes mod])dnl
OL_ARG_ENABLE(cleartext, [AS_HELP_STRING([--enable-cleartext], [enable cleartext passwords])], yes)dnl
OL_ARG_ENABLE(crypt, [AS_HELP_STRING([--enable-crypt], [enable crypt(3) passwords])], no)dnl
OL_ARG_ENABLE(spasswd, [AS_HELP_STRING([--enable-spasswd], [enable (Cyrus) SASL password verification])], no)dnl
OL_ARG_ENABLE(modules, [AS_HELP_STRING([--enable-modules], [enable dynamic module support])], no)dnl
OL_ARG_ENABLE(rlookups, [AS_HELP_STRING([--enable-rlookups], [enable reverse lookups of client hostnames])], no)dnl
OL_ARG_ENABLE(slapi, [AS_HELP_STRING([--enable-slapi], [enable SLAPI support (experimental)])], no)dnl
OL_ARG_ENABLE(slp, [AS_HELP_STRING([--enable-slp], [enable SLPv2 support])], no)dnl
OL_ARG_ENABLE(wrappers, [AS_HELP_STRING([--enable-wrappers], [enable tcp wrapper support])], no)dnl
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dnl ----------------------------------------------------------------
dnl SLAPD Backend Options
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Backends="dnssrv \
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	ldap \
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	mdb \
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	meta \
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	asyncmeta \
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	ndb \
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	null \
	passwd \
	perl \
	relay \
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	sock \
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	sql \
	wt"
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AC_ARG_ENABLE(xxslapbackends,[
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SLAPD Backend Options:])

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OL_ARG_ENABLE(backends, [AS_HELP_STRING([--enable-backends], [enable all available backends])],
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	--, [no yes mod])dnl
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OL_ARG_ENABLE(dnssrv, [AS_HELP_STRING([--enable-dnssrv], [enable dnssrv backend])],
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	no, [no yes mod], ol_enable_backends)dnl
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OL_ARG_ENABLE(ldap, [AS_HELP_STRING([--enable-ldap], [enable ldap backend])],
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	no, [no yes mod], ol_enable_backends)dnl
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OL_ARG_ENABLE(mdb, [AS_HELP_STRING([--enable-mdb], [enable mdb database backend])],
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	yes, [no yes mod], ol_enable_backends)dnl
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OL_ARG_ENABLE(meta, [AS_HELP_STRING([--enable-meta], [enable metadirectory backend])],
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	no, [no yes mod], ol_enable_backends)dnl
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OL_ARG_ENABLE(asyncmeta, [AS_HELP_STRING([--enable-asyncmeta], [enable asynchronous metadirectory backend])],
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	no, [no yes mod], ol_enable_backends)dnl
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OL_ARG_ENABLE(ndb, [AS_HELP_STRING([--enable-ndb], [enable MySQL NDB Cluster backend])],
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	no, [no yes mod])dnl
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OL_ARG_ENABLE(null, [AS_HELP_STRING([--enable-null], [enable null backend])],
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	no, [no yes mod], ol_enable_backends)dnl
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OL_ARG_ENABLE(passwd, [AS_HELP_STRING([--enable-passwd], [enable passwd backend])],
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	no, [no yes mod], ol_enable_backends)dnl
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OL_ARG_ENABLE(perl, [AS_HELP_STRING([--enable-perl], [enable perl backend])],
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	no, [no yes mod])dnl
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OL_ARG_ENABLE(relay, [AS_HELP_STRING([--enable-relay], [enable relay backend])],
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	yes, [no yes mod], ol_enable_backends)dnl
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OL_ARG_ENABLE(sock, [AS_HELP_STRING([--enable-sock], [enable sock backend])],
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	no, [no yes mod], ol_enable_backends)dnl
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OL_ARG_ENABLE(sql, [AS_HELP_STRING([--enable-sql], [enable sql backend])],
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	no, [no yes mod])dnl
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OL_ARG_ENABLE(wt, [AS_HELP_STRING([--enable-wt], [enable WiredTiger backend])],
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	no, [no yes mod], ol_enable_backends)dnl
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dnl ----------------------------------------------------------------
dnl SLAPD Overlay Options
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Overlays="accesslog \
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	auditlog \
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	autoca \
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	collect \
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	constraint \
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	dds \
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	deref \
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	dyngroup \
	dynlist \
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	homedir \
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	memberof \
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	otp \
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	ppolicy \
	proxycache \
	refint \
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	remoteauth \
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	retcode \
	rwm \
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	seqmod \
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	sssvlv \
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	syncprov \
	translucent \
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	unique \
	valsort"
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Pwmods="argon2"

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AC_ARG_ENABLE(xxslapoverlays,[
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SLAPD Overlay Options:])
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OL_ARG_ENABLE(overlays, [AS_HELP_STRING([--enable-overlays], [enable all available overlays])],
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	--, [no yes mod])dnl
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OL_ARG_ENABLE(accesslog, [AS_HELP_STRING([--enable-accesslog], [In-Directory Access Logging overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(auditlog, [AS_HELP_STRING([--enable-auditlog], [Audit Logging overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(autoca, [AS_HELP_STRING([--enable-autoca], [Automatic Certificate Authority overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(collect, [AS_HELP_STRING([--enable-collect], [Collect overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(constraint, [AS_HELP_STRING([--enable-constraint], [Attribute Constraint overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(dds, [AS_HELP_STRING([--enable-dds], [Dynamic Directory Services overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(deref, [AS_HELP_STRING([--enable-deref], [Dereference overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(dyngroup, [AS_HELP_STRING([--enable-dyngroup], [Dynamic Group overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(dynlist, [AS_HELP_STRING([--enable-dynlist], [Dynamic List overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(homedir, [AS_HELP_STRING([--enable-homedir], [Home Directory Management overlay])],
	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(memberof, [AS_HELP_STRING([--enable-memberof], [Reverse Group Membership overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(otp, [AS_HELP_STRING([--enable-otp], [OTP 2-factor authentication overlay])],
	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(ppolicy, [AS_HELP_STRING([--enable-ppolicy], [Password Policy overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(proxycache, [AS_HELP_STRING([--enable-proxycache], [Proxy Cache overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(refint, [AS_HELP_STRING([--enable-refint], [Referential Integrity overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(remoteauth, [AS_HELP_STRING([--enable-remoteauth], [Deferred Authentication overlay])],
	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(retcode, [AS_HELP_STRING([--enable-retcode], [Return Code testing overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(rwm, [AS_HELP_STRING([--enable-rwm], [Rewrite/Remap overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(seqmod, [AS_HELP_STRING([--enable-seqmod], [Sequential Modify overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(sssvlv, [AS_HELP_STRING([--enable-sssvlv], [ServerSideSort/VLV overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(syncprov, [AS_HELP_STRING([--enable-syncprov], [Syncrepl Provider overlay])],
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	yes, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(translucent, [AS_HELP_STRING([--enable-translucent], [Translucent Proxy overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(unique, [AS_HELP_STRING([--enable-unique], [Attribute Uniqueness overlay])],
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	no, [no yes mod], ol_enable_overlays)
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OL_ARG_ENABLE(valsort, [AS_HELP_STRING([--enable-valsort], [Value Sorting overlay])],
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	no, [no yes mod], ol_enable_overlays)
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dnl ----------------------------------------------------------------
dnl PASSWORD MODULE OPTIONS
AC_ARG_ENABLE(pwmodoptions,[
SLAPD Password Module Options:])
OL_ARG_ENABLE(argon2, [AS_HELP_STRING([--enable-argon2], [Argon2 password hashing module])],
	no, [no yes], ol_enable_pwmodules)
OL_ARG_WITH(argon2,
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	[AS_HELP_STRING([--with-argon2], [with argon2 support library auto|libsodium|libargon2])],
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	auto, [auto libsodium libargon2 yes no] )

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dnl ----------------------------------------------------------------
dnl BALANCER OPTIONS
AC_ARG_ENABLE(balanceroptions,[
LLOADD (Load Balancer Daemon) Options:])
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OL_ARG_ENABLE(balancer, [AS_HELP_STRING([--enable-balancer], [enable load balancer])],
	no, [no yes mod])
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dnl ----------------------------------------------------------------
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AC_ARG_ENABLE(xxliboptions,[
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Library Generation & Linking Options])
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AC_ENABLE_STATIC
AC_ENABLE_SHARED
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OL_ARG_ENABLE(versioning, [AS_HELP_STRING([--enable-versioning], [Enable versioned symbols in shared library])],
	auto, [no yes auto])
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dnl ----------------------------------------------------------------
dnl Validate options
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dnl ----------------------------------------------------------------

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if test $ol_enable_slapd = no ; then
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	dnl SLAPD was specifically disabled
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	dnl Disable all of its options

	for i in $SlapdOptions; do
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		eval "ol_tmp=\$ol_enable_$i"
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		if test $ol_tmp = yes ; then
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			AC_MSG_WARN([slapd disabled, ignoring --enable-$i argument])
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			eval "ol_enable_$i=no"
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		fi
	done
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	for i in $Backends $Overlays $Pwmods; do
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		eval "ol_tmp=\$ol_enable_$i"
		if test $ol_tmp != no ; then
			AC_MSG_WARN([slapd disabled, ignoring --enable-$i argument])
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			eval "ol_enable_$i=no"
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		fi
	done
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	if test $ol_enable_balancer = mod ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-balancer=mod argument])
		ol_enable_balancer=no
	fi
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else
	dnl If slapd enabled and loadable module support disabled
	dnl then require at least one built-in backend

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	if test $ol_enable_modules = no; then
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		for i in backends overlays balancer $Backends $Overlays; do
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			eval "ol_tmp=\$ol_enable_$i"
			if test -n "$ol_tmp" && test "$ol_tmp" = mod ; then
				AC_MSG_ERROR([--enable-$i=mod requires --enable-modules])
			fi
		done

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		for i in $Pwmods; do
			eval "ol_tmp=\$ol_enable_$i"
			if test -n "$ol_tmp" && test "$ol_tmp" = yes ; then
				AC_MSG_ERROR([--enable-$i=yes requires --enable-modules])
			fi
		done

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		ol_any_backend=no
		for i in $Backends; do
			eval "ol_tmp=\$ol_enable_$i"
			if test $ol_tmp = yes; then
				ol_any_backend=yes
			fi
		done
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		if test $ol_any_backend = no; then
			AC_MSG_ERROR([slapd requires a backend])
		fi
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	fi
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fi

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if test $ol_enable_aci = yes ; then
	if test $ol_enable_dynacl = no ; then
		AC_MSG_ERROR([--enable-aci requires --enable-dynacl])
	fi
elif test $ol_enable_aci = mod ; then
	AC_MSG_ERROR([ACI build as dynamic module not supported (yet)])
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fi

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if test $ol_enable_modules = yes ; then
	if test $ol_enable_dynamic = no ; then
		AC_MSG_ERROR([--enable-modules requires --enable-dynamic])
	fi
	ol_enable_dynamic=yes
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fi

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if test $ol_enable_balancer != no ; then
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	dnl Load Balancer was specifically enabled
	if test $ol_with_threads = no ; then
		AC_MSG_ERROR([Load balancer requires threads])
	fi
fi

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

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if test $ol_enable_meta/$ol_enable_ldap = yes/no ; then
	AC_MSG_ERROR([--enable-meta requires --enable-ldap])
fi

if test $ol_enable_asyncmeta/$ol_enable_ldap = yes/no ; then
	AC_MSG_ERROR([--enable-asyncmeta requires --enable-ldap])
fi

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AC_MSG_RESULT(done)

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dnl ----------------------------------------------------------------
dnl Initialize vars
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LDAP_LIBS=
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SLAPD_NDB_LIBS=
SLAPD_NDB_INCS=
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LTHREAD_LIBS=
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LEVENT_LIBS=
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LUTIL_LIBS=

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CLIENT_LIBS=

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SLAPD_LIBS=
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BALANCER_LIBS=
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BALANCER_INCLUDE=
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BUILD_SLAPD=no
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BUILD_BALANCER=no
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BUILD_THREAD=no

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BUILD_SLAPI=no
SLAPD_SLAPI_DEPEND=

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BUILD_DNSSRV=no
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BUILD_LDAP=no
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BUILD_MDB=no
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BUILD_META=no
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BUILD_ASYNCMETA=no
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BUILD_NDB=no
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BUILD_NULL=no
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BUILD_PASSWD=no
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BUILD_PERL=no
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BUILD_RELAY=no
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BUILD_SHELL=no
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BUILD_SOCK=no
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BUILD_SQL=no
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BUILD_WT=no
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BUILD_ACCESSLOG=no
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BUILD_AUDITLOG=no
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BUILD_AUTOCA=no
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BUILD_CONSTRAINT=no
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BUILD_DDS=no
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BUILD_DENYOP=no
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BUILD_DEREF=no
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BUILD_DYNGROUP=no
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BUILD_DYNLIST=no
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BUILD_LASTMOD=no
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BUILD_HOMEDIR=no
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BUILD_MEMBEROF=no
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BUILD_OTP=no
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BUILD_PPOLICY=no
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BUILD_PROXYCACHE=no
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BUILD_REFINT=no
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BUILD_REMOTEAUTH=no
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BUILD_RETCODE=no
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BUILD_RWM=no
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BUILD_SEQMOD=no
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BUILD_SSSVLV=no
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BUILD_SYNCPROV=no
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BUILD_TRANSLUCENT=no
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BUILD_UNIQUE=no
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BUILD_VALSORT=no
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BUILD_PW_ARGON2=no

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SLAPD_STATIC_OVERLAYS=
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SLAPD_DYNAMIC_OVERLAYS=

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SLAPD_DYNAMIC_PWMODS=

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SLAPD_MODULES_LDFLAGS=
SLAPD_MODULES_CPPFLAGS=

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SLAPD_STATIC_BACKENDS="back-ldif back-monitor"
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SLAPD_DYNAMIC_BACKENDS=

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SLAPD_PERL_LDFLAGS=
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MOD_PERL_LDFLAGS=
PERL_CPPFLAGS=
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SLAPD_SQL_LDFLAGS=
SLAPD_SQL_LIBS=
SLAPD_SQL_INCLUDES=

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SASL_LIBS=
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TLS_LIBS=
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WITH_TLS_TYPE=no
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MODULES_LIBS=
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SLAPI_LIBS=
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LIBSLAPI=
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AUTH_LIBS=
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SYSTEMD_LIBS=
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SLAPD_SLP_LIBS=
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SLAPD_GMP_LIBS=
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dnl ================================================================
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dnl Checks for programs

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

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

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dnl AIX Thread requires we use cc_r or xlc_r.
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dnl But only do this IF AIX and CC is not set
dnl and threads are auto|yes|posix.
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dnl
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dnl If we find cc_r|xlc_r, force pthreads and assume
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dnl		pthread_create is in $LIBS (ie: don't bring in
dnl		any additional thread libraries)
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dnl If we do not find cc_r|xlc_r, disable threads
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ol_aix_threads=no
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case "$target" in
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*-*-aix*) dnl all AIX is not a good idea.
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	if test -z "$CC" ; then
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		case "$ol_with_threads" in
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		auto | yes |  posix) ol_aix_threads=yes ;;
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		esac
	fi
;;
esac
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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
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	case ${CC} in cc_r | xlc_r)
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		ol_with_threads=posix
		ol_cv_pthread_create=yes
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		;;
	esac
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fi

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if test -z "${CC}"; then
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	AC_CHECK_PROGS(CC,cc gcc,missing)
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	if test "${CC}" = "missing" ; then
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		AC_MSG_ERROR([Unable to locate cc(1) or suitable replacement.  Check PATH or set CC.])
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	fi
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fi

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if test -z "${AR}"; then
	AC_CHECK_PROGS(AR,ar gar,missing)

	if test "${AR}" = "missing" ; then
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		AC_MSG_ERROR([Unable to locate ar(1) or suitable replacement.  Check PATH or set AR.])
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	fi
fi
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if test -z "${STRIP}"; then
	AC_CHECK_PROGS(STRIP,strip,missing)

	if test "${STRIP}" = "missing" ; then
		AC_MSG_ERROR([Unable to locate strip(1) or suitable replacement.  Check PATH or set STRIP.])
	fi
fi


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AC_LIBTOOL_WIN32_DLL
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AC_LIBTOOL_DLOPEN
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AC_PROG_MAKE_SET
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AC_PROG_LIBTOOL
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dnl ----------------------------------------------------------------
dnl Perl
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ol_link_perl=no
if test $ol_enable_perl != no ; then
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	AC_PATH_PROG(PERLBIN, perl, /usr/bin/perl)

	if test "no$PERLBIN" = "no" ; then
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		if test $ol_enable_perl = yes ; then
			AC_MSG_ERROR([could not locate perl])
		fi
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	else
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		PERL_CPPFLAGS="`$PERLBIN -MExtUtils::Embed -e ccopts`"
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		PERL_LDFLAGS="`$PERLBIN -MExtUtils::Embed -e ldopts|sed -e 's/ -lc / /' -e 's/ -lc$//'`"
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		if test x"$ol_enable_perl" = "xyes" ; then
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			SLAPD_PERL_LDFLAGS="$PERL_LDFLAGS"
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		else
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			MOD_PERL_LDFLAGS="$PERL_LDFLAGS"
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		fi
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		dnl should check perl version
		ol_link_perl=yes
	fi
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fi

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AC_PROG_CPP
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OL_MSVC
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dnl ----------------------------------------------------------------
dnl Checks for Windows NT
case $host_os in
  *mingw32* ) ac_cv_mingw32=yes ;;
  *cygwin* ) ac_cv_cygwin=yes ;;
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  *interix* ) ac_cv_interix=yes ;;
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esac

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AC_CHECK_TOOL(RC, windres, )

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dnl ----------------------------------------------------------------
769
dnl Checks for file extensions
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AC_EXEEXT
AC_OBJEXT
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AC_DEFINE_UNQUOTED(EXEEXT, "${EXEEXT}", [defined to be the EXE extension])
773

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

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

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dnl ----------------------------------------------------------------
786
dnl Check cc depend flags
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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
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dnl ----------------------------------------------------------------
dnl Check for AIX security library
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AC_CHECK_LIB(s, afopen, [
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	AUTH_LIBS=-ls
	AC_DEFINE(HAVE_AIX_SECURITY,1,[define if you have AIX security lib])
])

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dnl ----------------------------------------------------------------
dnl Check for IBM OS/390
case "$target" in
*-ibm-openedition)
	ac_cv_func_getopt=no
	AC_DEFINE(BOTH_STRINGS_H,1,[define to use both <string.h> and <strings.h>])
	;;
esac
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dnl ----------------------------------------------------------------
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dnl Check for module support
ol_link_modules=no
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WITH_MODULES_ENABLED=no
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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

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

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	if test "$ac_cv_lib_ltdl_lt_dlinit" = no ; then
		AC_MSG_ERROR([could not locate libtool -lltdl])
	fi
	ol_link_modules=yes
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	WITH_MODULES_ENABLED=yes
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fi

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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
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AC_HEADER_TIOCGWINSZ
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AC_CHECK_HEADERS(	\
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	arpa/inet.h		\
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	arpa/nameser.h	\
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	assert.h		\
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	bits/types.h	\
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	conio.h			\
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	crypt.h			\
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	direct.h		\
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	errno.h			\
	fcntl.h			\
	filio.h			\
	getopt.h		\
	grp.h			\
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	io.h			\
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	libutil.h		\
	limits.h		\
	locale.h		\
	malloc.h		\
	memory.h		\
	psap.h			\
	pwd.h			\
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	process.h		\
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	sgtty.h			\
	shadow.h		\
	stddef.h		\
	string.h		\
	strings.h		\
	sysexits.h		\
	sys/file.h		\
	sys/filio.h		\
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	sys/fstyp.h		\
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	sys/errno.h		\
	sys/ioctl.h		\
	sys/param.h		\
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	sys/privgrp.h	\
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	sys/resource.h	\
	sys/select.h	\
	sys/socket.h	\
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	sys/stat.h		\
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	sys/syslog.h	\
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	sys/time.h		\
	sys/types.h		\
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	sys/uio.h		\
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	sys/vmount.h	\
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	syslog.h		\
	termios.h		\
	unistd.h		\
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	utime.h			\
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)

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dnl Only check Winsock on MinGW
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if test "$ac_cv_mingw32" = yes \
	-o "$ac_cv_interix" = yes \
	-o "$ol_cv_msvc" = yes
then
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	AC_CHECK_HEADERS( winsock.h winsock2.h )
fi

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AC_CHECK_HEADERS( resolv.h, [], [],
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[$ac_includes_default
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#include <netinet/in.h>
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])

AC_CHECK_HEADERS( netinet/tcp.h, [], [],
[$ac_includes_default
#include <netinet/in.h>
])
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AC_CHECK_HEADERS( sys/ucred.h, [], [],
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[$ac_includes_default
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
])

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

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AC_CHECK_FUNCS( sigaction sigset )
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AC_CHECK_FUNCS( fmemopen )
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dnl HP-UX requires -lV3
dnl this is not needed on newer versions of HP-UX
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if test $ac_cv_func_sigaction = no && test $ac_cv_func_sigaction = no ; then
	AC_CHECK_LIB(V3, sigset)
fi
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if test $ol_cv_msvc = yes ; then
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   ol_cv_winsock=yes
fi

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dnl The following is INTENTIONALLY scripted out because shell does not
dnl support variable names with the '@' character, which is what
dnl autoconf would try to generate if one merely used AC_SEARCH_LIBS
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if test "$ac_cv_header_winsock_h" = yes; then
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	AC_CACHE_CHECK([for winsock], [ol_cv_winsock],[
	save_LIBS="$LIBS"
	for curlib in none ws2_32 wsock32; do
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		if test $curlib != none ; then
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	    	LIBS="$save_LIBS -l$curlib"
		fi
		AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <winsock.h>
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			]], [[
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			socket(0,0,0);
			select(0,NULL,NULL,NULL,NULL);
			closesocket(0);
			gethostname(NULL,0);
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			]])],[ol_cv_winsock=$curlib],[ol_cv_winsock=no])
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		test "$ol_cv_winsock" != no && break
	done
	LIBS="$save_LIBS"
	])
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	if test $ol_cv_winsock != no ; 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
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		if test $ol_cv_winsock != none -a $ol_cv_winsock != yes ; then
        	LIBS="$LIBS -l$ol_cv_winsock"
		fi