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dnl $OpenLDAP$
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 Redefine AC_INIT_BINSH to provide RCS IDs and copyright notice
dnl at top of generated configure script.  Prints simple copyright.
# 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."
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echo "Restrictions apply, see COPYRIGHT and LICENSE files."
dnl ----------------------------------------------------------------
dnl Disable config.cache!
define([AC_CACHE_LOAD], )dnl
define([AC_CACHE_SAVE], )dnl
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dnl ================================================================
dnl Configure.in for OpenLDAP
AC_INIT(build/version.sh)dnl

# set unset (borrowed from autoconf 2.14a)
if (unset 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

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

echo "Configuring $OL_STRING ..."
dnl Determine host platform
dnl		we try not to use this for much
AC_CANONICAL_SYSTEM

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

OPENLDAP_LIBVERSION=$OL_API_LIB
AC_SUBST(OPENLDAP_LIBVERSION)

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)

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"
		;;
esac
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],
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],
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	auto, [auto ssleay openssl yes no] )
OL_ARG_WITH(yielding_select,[  --with-yielding-select  with implicitly yielding select],
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
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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
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], auto)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(bdb,[    --enable-bdb	  enable Berkeley DB backend], no)dnl
OL_ARG_WITH(bdb_module,[    --with-bdb-module  module type], static,
	[static dynamic])
OL_ARG_ENABLE(dnssrv,[    --enable-dnssrv	  enable dnssrv backend], no)dnl
OL_ARG_WITH(dnssrv_module,[    --with-dnssrv-module  module type], static,
OL_ARG_ENABLE(ldap,[    --enable-ldap	  enable ldap backend], no)dnl
OL_ARG_WITH(ldap_module,[    --with-ldap-module	  module type], static,
OL_ARG_ENABLE(ldbm,[    --enable-ldbm	  enable ldbm backend], yes)dnl
OL_ARG_WITH(ldbm_api,[    --with-ldbm-api       with LDBM API], auto,
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	[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,
OL_ARG_ENABLE(perl,[    --enable-perl	  enable perl backend], no)dnl
OL_ARG_WITH(perl_module,[    --with-perl-module	  module type], static,
OL_ARG_ENABLE(shell,[    --enable-shell	  enable shell backend], no)dnl
OL_ARG_WITH(shell_module,[    --with-shell-module	  module type], static,
OL_ARG_ENABLE(sql,[    --enable-sql	  enable sql backend], no)dnl
OL_ARG_WITH(sql_module,[    --with-sql-module	  module type], static,
OL_ARG_ENABLE(tcl,[    --enable-tcl	  enable tcl backend], no)dnl
OL_ARG_WITH(tcl_module,[    --with-tcl-module	  module type], static,
dnl ----------------------------------------------------------------
dnl SLURPD OPTIONS
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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 ----------------------------------------------------------------

if test $ol_enable_slapd = no ; then
	dnl SLAPD was specificallly disabled
	if test $ol_enable_bdb = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-bdb argument])
	fi
	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])
	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])
	if test $ol_enable_perl = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-perl argument])
	if test $ol_enable_shell = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-shell argument])
	if test $ol_enable_tcl = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-tcl argument])
	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])
	if test $ol_enable_multimaster = yes ; then
		AC_MSG_WARN([slapd disabled, ignoring --enable-multimaster argument])
	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])
	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])
	if test $ol_with_bdb_module != static ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-bdb-module 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_perl_module != static ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-perl-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_tcl_module != static ; then
		AC_MSG_WARN([slapd disabled, ignoring --with-tcl-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_bdb=no
	ol_enable_ldap=no
	ol_enable_ldbm=no
	ol_enable_passwd=no
	ol_enable_perl=no
	ol_enable_shell=no
	ol_enable_multimaster=no
	ol_enable_phonetic=no
	ol_enable_rlookups=no
	ol_enable_wrappers=no
	ol_with_ldbm_api=no
	ol_with_ldbm_type=no
	ol_with_bdb_module=static
	ol_with_dnssrv_module=static
	ol_with_ldap_module=static
	ol_with_ldbm_module=static
	ol_with_passwd_module=static
	ol_with_perl_module=static
	ol_with_shell_module=static
	ol_with_tcl_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])
	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_bdb = no -a \
		$ol_enable_dnssrv = no -a \
		$ol_enable_ldap = no -a \
		$ol_enable_passwd = no -a \
		$ol_enable_sql = no -a \
		$ol_enable_tcl = no ; then
		AC_MSG_ERROR([slapd requires a backend])
	fi

	ol_with_ldbm_api=no
	ol_with_ldbm_type=no

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])
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	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])
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
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	if test $ol_with_kerberos != no -a $ol_with_kerberos != auto ; then
		AC_MSG_WARN([Kerberos detection enabled unnecessarily]);
	fi
	ol_with_kerberos=no
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
AC_MSG_RESULT(done)

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

SLAPD_LIBS=
SLURPD_LIBS=

BUILD_SLAPD=no
BUILD_SLURPD=no

BUILD_BDB=no
BUILD_LDBM=no
BUILD_PASSWD=no
BUILD_SHELL=no
BUILD_BDB_DYNAMIC=static
BUILD_DNSSRV_DYNAMIC=static
BUILD_LDAP_DYNAMIC=static
BUILD_LDBM_DYNAMIC=static
BUILD_PASSWD_DYNAMIC=static
BUILD_PERL_DYNAMIC=static
BUILD_SHELL_DYNAMIC=static
BUILD_TCL_DYNAMIC=static
BUILD_SQL_DYNAMIC=static
SLAPD_MODULES_LDFLAGS=
SLAPD_MODULES_CPPFLAGS=
SLAPD_PERL_LDFLAGS=
SLAPD_SQL_LDFLAGS=
SLAPD_SQL_LIBS=
SLAPD_SQL_INCLUDES=

SASL_LIBS=
TERMCAP_LIBS=
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TLS_LIBS=
dnl ================================================================
dnl Checks for programs

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.
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dnl But only do this IF AIX and CC is not set
dnl and threads are auto|yes|posix.
dnl If we find cc_r|xlc_r, force pthreads and assume
dnl		pthread_create is in $LIBS (ie: don't bring in
dnl		any additional thread libraries)
dnl If we do not find cc_r|xlc_r, disable threads
case "$target" in
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*-*-aix*) dnl all AIX is not a good idea.
	if test -z "$CC" ; then
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		case "$ol_with_threads" in
		auto | yes |  posix) ol_aix_threads=yes ;;
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		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

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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-""}

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AC_LIBTOOL_WIN32_DLL
AC_PROG_LIBTOOL
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)

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

	if test "no$PERLBIN" = "no" ; then
		if test $ol_enable_perl = yes ; then
			AC_MSG_ERROR([could not locate perl])
		fi
		PERL_CPPFLAGS="`$PERLBIN -MExtUtils::Embed -e ccopts`"
		if test x"$ol_with_perl_module" = "xstatic" ; then
			SLAPD_PERL_LDFLAGS="`$PERLBIN -MExtUtils::Embed -e ldopts|sed -e s/-lc//`"
		else
			MOD_PERL_LDFLAGS="`$PERLBIN -MExtUtils::Embed -e ldopts|sed -e s/-lc//`"
		fi
		dnl should check perl version
		ol_link_perl=yes
	fi
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.])
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${am_cv_prog_cc_stdc}" = "Xno" ; then
	AC_MSG_ERROR([OpenLDAP requires compiler to support STDC constructs.])
dnl ----------------------------------------------------------------
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OL_MKDEPEND
if test "${ol_cv_mkdep}" = no ; then
	# this will soon become an error
	AC_MSG_WARN([do not know how to generate dependencies])
fi
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

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	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_bdb_module=static
	ol_with_dnssrv_module=static
	ol_with_ldap_module=static
	ol_with_ldbm_module=static
	ol_with_passwd_module=static
	ol_with_perl_module=static
	ol_with_shell_module=static
	ol_with_tcl_module=static
	ol_with_sql_module=static
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		\
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	conio.h			\
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	direct.h		\
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	io.h			\
	libutil.h		\
	limits.h		\
	locale.h		\
	netinet/tcp.h	\
	malloc.h		\
	memory.h		\
	psap.h			\
	pwd.h			\
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	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		\
dnl ----------------------------------------------------------------
dnl Checks for libraries

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

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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
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)
])

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

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if test "${ac_cv_header_winsock_h}" != yes; then
    dnl Select arg types
    dnl (if this detection becomes permenent, it and the select() detection
    dnl should be done before the yielding select test) 
    AC_FUNC_SELECT_ARGTYPES
fi
dnl check to see if system call automatically restart
dnl AC_SYS_RESTARTABLE_SYSCALLS
dnl ----------------------------------------------------------------
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dnl require POSIX regex
AC_CHECK_HEADERS( regex.h )
if test "$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 ----------------------------------------------------------------
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
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
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
if test "$ac_cv_func_res_query" = yes ; then
	AC_DEFINE(HAVE_RES_QUERY,1,
		[define if you have res_query()])

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

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	AC_CACHE_CHECK([INET6_ADDRSTRLEN],[ol_cv_inet6_addrstrlen],[
		AC_EGREP_CPP(__has_inet6_addrstrlen__,[
#			include <netinet/in.h>
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#			ifdef INET6_ADDRSTRLEN
				__has_inet6_addrstrlen__;
#			endif
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		], [ol_cv_inet6_addrstrlen=yes], [ol_cv_inet6_addrstrlen=no])])
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	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
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])
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			AC_MSG_WARN([Unrecongized Kerberos V 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"
			])

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			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"
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])

			if test $ac_cv_header_krb_archaeology_h = yes ; then
				AC_DEFINE(HAVE_KTH_KERBEROS, 1,
					[define if you have Kth Kerberos])
			fi
if test $ol_link_krb4 = yes -a $ol_enable_kpasswd != no ; then
	ol_link_kpasswd=yes
fi