dnl
dnl Use the top-level autogen.sh script to generate configure and config.h.in
dnl
dnl Copyright (c) 1994-1996,1998-2017 Todd C. Miller <Todd.Miller@courtesan.com>
dnl
AC_PREREQ([2.59])
AC_INIT([sudo], [1.8.21p2], [https://bugzilla.sudo.ws/], [sudo])
AC_CONFIG_HEADER([config.h pathnames.h])
AC_CONFIG_SRCDIR([src/sudo.c])
dnl
dnl Note: this must come after AC_INIT
dnl
AC_MSG_NOTICE([Configuring Sudo version $PACKAGE_VERSION])
dnl
dnl Variables that get substituted in the Makefile and man pages
dnl
AC_SUBST([SHELL])
AC_SUBST([LIBTOOL])
AC_SUBST([CFLAGS])
AC_SUBST([PROGS])
AC_SUBST([CPPFLAGS])
AC_SUBST([LDFLAGS])
AC_SUBST([SUDO_LDFLAGS])
AC_SUBST([SUDOERS_LDFLAGS])
AC_SUBST([LIBUTIL_LDFLAGS])
AC_SUBST([ZLIB_LDFLAGS])
AC_SUBST([LT_LDFLAGS])
AC_SUBST([LT_LDDEP])
AC_SUBST([LT_LDEXPORTS])
AC_SUBST([LT_STATIC])
AC_SUBST([LT_DEP_LIBS])
AC_SUBST([COMMON_OBJS])
AC_SUBST([SUDOERS_OBJS])
AC_SUBST([SUDO_OBJS])
AC_SUBST([LIBS])
AC_SUBST([SUDO_LIBS])
AC_SUBST([SUDOERS_LIBS])
AC_SUBST([STATIC_SUDOERS])
AC_SUBST([NET_LIBS])
AC_SUBST([AFS_LIBS])
AC_SUBST([REPLAY_LIBS])
AC_SUBST([GETGROUPS_LIB])
AC_SUBST([AUTH_OBJS])
AC_SUBST([MANTYPE])
AC_SUBST([MANDIRTYPE])
AC_SUBST([MANCOMPRESS])
AC_SUBST([MANCOMPRESSEXT])
AC_SUBST([SHLIB_ENABLE])
AC_SUBST([SHLIB_MODE])
AC_SUBST([SUDOERS_MODE])
AC_SUBST([SUDOERS_UID])
AC_SUBST([SUDOERS_GID])
AC_SUBST([DEVEL])
AC_SUBST([BAMAN])
AC_SUBST([LCMAN])
AC_SUBST([PSMAN])
AC_SUBST([SEMAN])
AC_SUBST([devdir])
AC_SUBST([mansectsu])
AC_SUBST([mansectform])
AC_SUBST([mansrcdir])
AC_SUBST([NOEXECFILE])
AC_SUBST([NOEXECDIR])
AC_SUBST([noexec_file])
AC_SUBST([sesh_file])
AC_SUBST([INSTALL_BACKUP])
AC_SUBST([INSTALL_NOEXEC])
AC_SUBST([CHECK_NOEXEC])
AC_SUBST([DONT_LEAK_PATH_INFO])
AC_SUBST([BSDAUTH_USAGE])
AC_SUBST([SELINUX_USAGE])
AC_SUBST([LDAP])
AC_SUBST([LOGINCAP_USAGE])
AC_SUBST([ZLIB])
AC_SUBST([ZLIB_SRC])
AC_SUBST([LIBTOOL_DEPS])
AC_SUBST([CONFIGURE_ARGS])
AC_SUBST([LIBDL])
AC_SUBST([LIBRT])
AC_SUBST([LIBINTL])
AC_SUBST([LIBMD])
AC_SUBST([SUDO_NLS])
AC_SUBST([LOCALEDIR_SUFFIX])
AC_SUBST([COMPAT_TEST_PROGS])
AC_SUBST([SUDOERS_TEST_PROGS])
AC_SUBST([CROSS_COMPILING])
AC_SUBST([ASAN_LDFLAGS])
AC_SUBST([ASAN_CFLAGS])
AC_SUBST([PIE_LDFLAGS])
AC_SUBST([PIE_CFLAGS])
AC_SUBST([SSP_LDFLAGS])
AC_SUBST([SSP_CFLAGS])
AC_SUBST([INIT_SCRIPT])
AC_SUBST([INIT_DIR])
AC_SUBST([RC_LINK])
AC_SUBST([COMPAT_EXP])
AC_SUBST([TMPFILES_D])
AC_SUBST([exampledir])
AC_SUBST([FILEDIGEST])
AC_SUBST([devsearch])
dnl
dnl Variables that get substituted in docs (not overridden by environment)
dnl
AC_SUBST([iolog_dir])dnl real initial value from SUDO_IO_LOGDIR
AC_SUBST([rundir])dnl real initial value from SUDO_RUNDIR
AC_SUBST([vardir])dnl real initial value from SUDO_VARDIR
AC_SUBST([timeout])
AC_SUBST([password_timeout])
AC_SUBST([sudo_umask])
AC_SUBST([umask_override])
AC_SUBST([passprompt])
AC_SUBST([long_otp_prompt])
AC_SUBST([lecture])
AC_SUBST([logfac])
AC_SUBST([goodpri])
AC_SUBST([badpri])
AC_SUBST([loglen])
AC_SUBST([ignore_dot])
AC_SUBST([mail_no_user])
AC_SUBST([mail_no_host])
AC_SUBST([mail_no_perms])
AC_SUBST([mailto])
AC_SUBST([mailsub])
AC_SUBST([badpass_message])
AC_SUBST([fqdn])
AC_SUBST([runas_default])
AC_SUBST([env_editor])
AC_SUBST([env_reset])
AC_SUBST([passwd_tries])
AC_SUBST([timestamp_type])
AC_SUBST([insults])
AC_SUBST([root_sudo])
AC_SUBST([path_info])
AC_SUBST([ldap_conf])
AC_SUBST([ldap_secret])
AC_SUBST([sssd_lib])
AC_SUBST([nsswitch_conf])
AC_SUBST([netsvc_conf])
AC_SUBST([secure_path])
AC_SUBST([editor])
AC_SUBST([pam_session])
AC_SUBST([pam_login_service])
AC_SUBST([PLUGINDIR])
#
# Begin initial values for man page substitution
#
iolog_dir=/var/log/sudo-io
rundir=/var/run/sudo
vardir=/var/adm/sudo
timeout=5
password_timeout=5
sudo_umask=0022
umask_override=off
passprompt="Password: "
long_otp_prompt=off
lecture=once
logfac=auth
goodpri=notice
badpri=alert
loglen=80
ignore_dot=off
mail_no_user=on
mail_no_host=off
mail_no_perms=off
mailto=root
mailsub="*** SECURITY information for %h ***"
badpass_message="Sorry, try again."
fqdn=off
runas_default=root
env_editor=off
env_reset=on
editor=vi
passwd_tries=3
timestamp_type=tty
insults=off
root_sudo=on
path_info=on
ldap_conf=/etc/ldap.conf
ldap_secret=/etc/ldap.secret
netsvc_conf=/etc/netsvc.conf
noexec_file=/usr/local/libexec/sudo/sudo_noexec.so
sesh_file=/usr/local/libexec/sudo/sesh
nsswitch_conf=/etc/nsswitch.conf
secure_path="not set"
pam_session=on
pam_login_service=sudo
PLUGINDIR=/usr/local/libexec/sudo
FILEDIGEST=filedigest.lo
devsearch="/dev/pts:/dev/vt:/dev/term:/dev/zcons:/dev/pty:/dev"
#
# End initial values for man page substitution
#
dnl
dnl Initial values for Makefile variables listed above
dnl May be overridden by environment variables..
dnl
INSTALL_BACKUP=
INSTALL_NOEXEC=
CHECK_NOEXEC=
exampledir='$(docdir)/examples'
devdir='$(srcdir)'
PROGS="sudo"
: ${MANDIRTYPE='man'}
: ${mansrcdir='.'}
: ${SHLIB_MODE='0644'}
: ${SUDOERS_MODE='0440'}
: ${SUDOERS_UID='0'}
: ${SUDOERS_GID='0'}
DEVEL=
LDAP="#"
BAMAN=0
LCMAN=0
PSMAN=0
SEMAN=0
LIBINTL=
LIBMD=
ZLIB=
ZLIB_SRC=
AUTH_OBJS=
AUTH_REG=
AUTH_EXCL=
AUTH_EXCL_DEF=
AUTH_DEF=passwd
SUDO_NLS=disabled
LOCALEDIR_SUFFIX=
LT_LDEXPORTS="-export-symbols \$(shlib_exp)"
LT_LDDEP="\$(shlib_exp)"
OS_INIT=os_init_common
INIT_SCRIPT=
INIT_DIR=
RC_LINK=
COMPAT_EXP=
dnl
dnl Other vaiables
dnl
WEAK_ALIAS=no
CHECKSHADOW=true
shadow_funcs=
shadow_libs=
TMPFILES_D=
CONFIGURE_ARGS="$@"

dnl
dnl LD_PRELOAD equivalents
dnl
RTLD_PRELOAD_VAR="LD_PRELOAD"
RTLD_PRELOAD_ENABLE_VAR=
RTLD_PRELOAD_DELIM=":"
RTLD_PRELOAD_DEFAULT=

dnl
dnl libc replacement functions live in libsudo_util.a
dnl
AC_CONFIG_LIBOBJ_DIR(lib/util)

dnl
dnl We must call AC_USE_SYSTEM_EXTENSIONS before the compiler is run.
dnl
AC_USE_SYSTEM_EXTENSIONS

#
# Prior to sudo 1.8.7, sudo stored libexec files in $libexecdir.
# Starting with sudo 1.8.7, $libexecdir/sudo is used so strip
# off an extraneous "/sudo" from libexecdir.
#
case "$libexecdir" in
    */sudo)
	AC_MSG_WARN([libexecdir should not include the "sudo" subdirectory])
	libexecdir=`expr "$libexecdir" : '\\(.*\\)/sudo$'`
	;;
esac

dnl
dnl Deprecated --with options (these all warn or generate an error)
dnl

AC_ARG_WITH(otp-only, [AS_HELP_STRING([--with-otp-only], [deprecated])],
[case $with_otp_only in
    yes)	with_passwd="no"
		AC_MSG_NOTICE([--with-otp-only option deprecated, treating as --without-passwd])
		;;
esac])

AC_ARG_WITH(alertmail, [AS_HELP_STRING([--with-alertmail], [deprecated])],
[case $with_alertmail in
    *)		with_mailto="$with_alertmail"
		AC_MSG_NOTICE([--with-alertmail option deprecated, treating as --mailto])
		;;
esac])

dnl
dnl Options for --with
dnl

AC_ARG_WITH(devel, [AS_HELP_STRING([--with-devel], [add development options])],
[case $with_devel in
    yes)	AC_MSG_NOTICE([Setting up for development: -Wall, flex, yacc])
		AX_APPEND_FLAG([-DSUDO_DEVEL], [CPPFLAGS])
		DEVEL="true"
		devdir=.
		;;
    no)		;;
    *)		AC_MSG_WARN([Ignoring unknown argument to --with-devel: $with_devel])
		;;
esac])

AC_ARG_WITH(CC, [AS_HELP_STRING([--with-CC], [C compiler to use])],
[case $with_CC in
    *)		AC_MSG_ERROR([the --with-CC option is no longer supported, please set the CC environment variable instead.])
		;;
esac])

AC_ARG_WITH(rpath, [AS_HELP_STRING([--with-rpath], [deprecated, use --disable-rpath])],
[AC_MSG_WARN([--with-rpath deprecated, rpath is now the default])])

AC_ARG_WITH(blibpath, [AS_HELP_STRING([--with-blibpath[[=PATH]]], [deprecated])],
[AC_MSG_WARN([--with-blibpath deprecated, use --with-libpath])])

dnl
dnl Handle BSM auditing support.
dnl
AC_ARG_WITH(bsm-audit, [AS_HELP_STRING([--with-bsm-audit], [enable BSM audit support])],
[case $with_bsm_audit in
    yes)	AC_DEFINE(HAVE_BSM_AUDIT)
		SUDOERS_LIBS="${SUDOERS_LIBS} -lbsm"
		SUDOERS_OBJS="${SUDOERS_OBJS} bsm_audit.lo"
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-bsm-audit does not take an argument."])
		;;
esac])

dnl
dnl Handle Linux auditing support.
dnl
AC_ARG_WITH(linux-audit, [AS_HELP_STRING([--with-linux-audit], [enable Linux audit support])],
[case $with_linux_audit in
    yes)	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <libaudit.h>]], [[int i = AUDIT_USER_CMD; (void)i;]])], [
		    AC_DEFINE(HAVE_LINUX_AUDIT)
		    SUDO_LIBS="${SUDO_LIBS} -laudit"
		    SUDOERS_LIBS="${SUDO_LIBS} -laudit"
		    SUDOERS_OBJS="${SUDOERS_OBJS} linux_audit.lo"
		], [
		    AC_MSG_ERROR([unable to find AUDIT_USER_CMD in libaudit.h for --with-linux-audit])
		])
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-linux-audit does not take an argument."])
		;;
esac])

dnl
dnl Handle Solaris auditing support.
dnl
AC_ARG_WITH(solaris-audit, [AS_HELP_STRING([--with-solaris-audit], [enable Solaris audit support])],
[case $with_solaris_audit in
    yes)	AC_DEFINE(HAVE_SOLARIS_AUDIT)
		SUDOERS_LIBS="${SUDOERS_LIBS} -lbsm"
		SUDOERS_OBJS="${SUDOERS_OBJS} solaris_audit.lo"
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-solaris-audit does not take an argument."])
		;;
esac])

dnl
dnl Handle SSSD support.
dnl
AC_ARG_WITH(sssd, [AS_HELP_STRING([--with-sssd], [enable SSSD support])],
[case $with_sssd in
    yes)	SUDOERS_OBJS="${SUDOERS_OBJS} sssd.lo"
		AC_DEFINE(HAVE_SSSD)
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-sssd does not take an argument."])
		;;
esac])

AC_ARG_WITH(sssd-conf, [AS_HELP_STRING([--with-sssd-conf], [path to the SSSD config file])])
sssd_conf="/etc/sssd/sssd.conf"
test -n "$with_sssd_conf" && sssd_conf="$with_sssd_conf"
SUDO_DEFINE_UNQUOTED(_PATH_SSSD_CONF, "$sssd_conf", [Path to the SSSD config file])

AC_ARG_WITH(sssd-lib, [AS_HELP_STRING([--with-sssd-lib], [path to the SSSD library])])
sssd_lib="\"LIBDIR\""
test -n "$with_sssd_lib" && sssd_lib="$with_sssd_lib"
SUDO_DEFINE_UNQUOTED(_PATH_SSSD_LIB, "$sssd_lib", [Path to the SSSD library])

AC_ARG_WITH(incpath, [AS_HELP_STRING([--with-incpath], [additional places to look for include files])],
[case $with_incpath in
    yes)	AC_MSG_ERROR(["must give --with-incpath an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-incpath not supported."])
		;;
    *)		AC_MSG_NOTICE([Adding ${with_incpath} to CPPFLAGS])
		for i in ${with_incpath}; do
		    AX_APPEND_FLAG([-I${i}], [CPPFLAGS])
		done
		;;
esac])

AC_ARG_WITH(libpath, [AS_HELP_STRING([--with-libpath], [additional places to look for libraries])],
[case $with_libpath in
    yes)	AC_MSG_ERROR(["must give --with-libpath an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-libpath not supported."])
		;;
    *)		AC_MSG_NOTICE([Adding ${with_libpath} to LDFLAGS])
		;;
esac])

AC_ARG_WITH(libraries, [AS_HELP_STRING([--with-libraries], [additional libraries to link with])],
[case $with_libraries in
    yes)	AC_MSG_ERROR(["must give --with-libraries an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-libraries not supported."])
		;;
    *)		AC_MSG_NOTICE([Adding ${with_libraries} to LIBS])
		;;
esac])

AC_ARG_WITH(efence, [AS_HELP_STRING([--with-efence], [link with -lefence for malloc() debugging])],
[case $with_efence in
    yes)	AC_MSG_NOTICE([Sudo will link with -lefence (Electric Fence)])
		LIBS="${LIBS} -lefence"
		if test -f /usr/local/lib/libefence.a; then
		    with_libpath="${with_libpath} /usr/local/lib"
		fi
		;;
    no)		;;
    *)		AC_MSG_WARN([Ignoring unknown argument to --with-efence: $with_efence])
		;;
esac])

AC_ARG_WITH(csops, [AS_HELP_STRING([--with-csops], [add CSOps standard options])],
[case $with_csops in
    yes)	AC_MSG_NOTICE([Adding CSOps standard options])
		CHECKSIA=false
		with_ignore_dot=yes
		insults=on
		with_classic_insults=yes
		with_csops_insults=yes
		with_env_editor=yes
		: ${mansectsu='8'}
		: ${mansectform='5'}
		;;
    no)		;;
    *)		AC_MSG_WARN([Ignoring unknown argument to --with-csops: $with_csops])
		;;
esac])

AC_ARG_WITH(passwd, [AS_HELP_STRING([--without-passwd], [don't use passwd/shadow file for authentication])],
[case $with_passwd in
    yes|no)	AC_MSG_CHECKING(whether to use shadow/passwd file authentication)
		AC_MSG_RESULT($with_passwd)
		AUTH_DEF=""
		test "$with_passwd" = "yes" && AUTH_REG="$AUTH_REG passwd"
		;;
    *)		AC_MSG_ERROR(["Sorry, --with-passwd does not take an argument."])
		;;
esac])

AC_ARG_WITH(skey, [AS_HELP_STRING([--with-skey[[=DIR]]], [enable S/Key support ])],
[case $with_skey in
    no)		;;
    *)		AC_DEFINE(HAVE_SKEY)
		AC_MSG_CHECKING(whether to try S/Key authentication)
		AC_MSG_RESULT(yes)
		AUTH_REG="$AUTH_REG S/Key"
		;;
esac])

AC_ARG_WITH(opie, [AS_HELP_STRING([--with-opie[[=DIR]]], [enable OPIE support ])],
[case $with_opie in
    no)		;;
    *)		AC_DEFINE(HAVE_OPIE)
		AC_MSG_CHECKING(whether to try NRL OPIE authentication)
		AC_MSG_RESULT(yes)
		AUTH_REG="$AUTH_REG NRL_OPIE"
		;;
esac])

AC_ARG_WITH(long-otp-prompt, [AS_HELP_STRING([--with-long-otp-prompt], [use a two line OTP (skey/opie) prompt])],
[case $with_long_otp_prompt in
    yes)	AC_DEFINE(LONG_OTP_PROMPT)
		AC_MSG_CHECKING(whether to use a two line prompt for OTP authentication)
		AC_MSG_RESULT(yes)
		long_otp_prompt=on
		;;
    no)		long_otp_prompt=off
		;;
    *)		AC_MSG_ERROR(["--with-long-otp-prompt does not take an argument."])
		;;
esac])

AC_ARG_WITH(SecurID, [AS_HELP_STRING([--with-SecurID[[=DIR]]], [enable SecurID support])],
[case $with_SecurID in
    no)		;;
    *)		AC_DEFINE(HAVE_SECURID)
		AC_MSG_CHECKING(whether to use SecurID for authentication)
		AC_MSG_RESULT(yes)
		AUTH_EXCL="$AUTH_EXCL SecurID"
		;;
esac])

AC_ARG_WITH(fwtk, [AS_HELP_STRING([--with-fwtk[[=DIR]]], [enable FWTK AuthSRV support])],
[case $with_fwtk in
    no)		;;
    *)		AC_DEFINE(HAVE_FWTK)
		AC_MSG_CHECKING(whether to use FWTK AuthSRV for authentication)
		AC_MSG_RESULT(yes)
		AUTH_EXCL="$AUTH_EXCL FWTK"
		;;
esac])

AC_ARG_WITH(kerb5, [AS_HELP_STRING([--with-kerb5[[=DIR]]], [enable Kerberos V support])],
[case $with_kerb5 in
    no)		;;
    *)		AC_MSG_CHECKING(whether to try Kerberos V authentication)
		AC_MSG_RESULT(yes)
		AUTH_REG="$AUTH_REG kerb5"
		;;
esac])

AC_ARG_WITH(aixauth, [AS_HELP_STRING([--with-aixauth], [enable AIX general authentication support])],
[case $with_aixauth in
    yes)	AUTH_EXCL="$AUTH_EXCL AIX_AUTH";;
    no)		;;
    *)		AC_MSG_ERROR(["--with-aixauth does not take an argument."])
		;;
esac])

AC_ARG_WITH(pam, [AS_HELP_STRING([--with-pam], [enable PAM support])],
[case $with_pam in
    yes)	AUTH_EXCL="$AUTH_EXCL PAM";;
    no)		;;
    *)		AC_MSG_ERROR(["--with-pam does not take an argument."])
		;;
esac])

AC_ARG_WITH(AFS, [AS_HELP_STRING([--with-AFS], [enable AFS support])],
[case $with_AFS in
    yes)	AC_DEFINE(HAVE_AFS)
		AC_MSG_CHECKING(whether to try AFS (kerberos) authentication)
		AC_MSG_RESULT(yes)
		AUTH_REG="$AUTH_REG AFS"
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-AFS does not take an argument."])
		;;
esac])

AC_ARG_WITH(DCE, [AS_HELP_STRING([--with-DCE], [enable DCE support])],
[case $with_DCE in
    yes)	AC_DEFINE(HAVE_DCE)
		AC_MSG_CHECKING(whether to try DCE (kerberos) authentication)
		AC_MSG_RESULT(yes)
		AUTH_REG="$AUTH_REG DCE"
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-DCE does not take an argument."])
		;;
esac])

AC_ARG_WITH(logincap, [AS_HELP_STRING([--with-logincap], [enable BSD login class support])],
[case $with_logincap in
    yes|no)	;;
    *)		AC_MSG_ERROR(["--with-logincap does not take an argument."])
		;;
esac])

AC_ARG_WITH(bsdauth, [AS_HELP_STRING([--with-bsdauth], [enable BSD authentication support])],
[case $with_bsdauth in
    yes)	AUTH_EXCL="$AUTH_EXCL BSD_AUTH";;
    no)		;;
    *)		AC_MSG_ERROR(["--with-bsdauth does not take an argument."])
		;;
esac])

AC_ARG_WITH(project, [AS_HELP_STRING([--with-project], [enable Solaris project support])],
[case $with_project in
    yes|no)	;;
    no)	;;
    *)		AC_MSG_ERROR(["--with-project does not take an argument."])
		;;
esac])

AC_MSG_CHECKING(whether to lecture users the first time they run sudo)
AC_ARG_WITH(lecture, [AS_HELP_STRING([--without-lecture], [don't print lecture for first-time sudoer])],
[case $with_lecture in
    yes|short|always)	lecture=once
		;;
    no|none|never)	lecture=never
		;;
    *)		AC_MSG_ERROR(["unknown argument to --with-lecture: $with_lecture"])
		;;
esac])
if test "$lecture" = "once"; then
    AC_MSG_RESULT(yes)
else
    AC_DEFINE(NO_LECTURE)
    AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(whether sudo should log via syslog or to a file by default)
AC_ARG_WITH(logging, [AS_HELP_STRING([--with-logging], [log via syslog, file, or both])],
[case $with_logging in
    yes)	AC_MSG_ERROR(["must give --with-logging an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-logging not supported."])
		;;
    syslog)	AC_DEFINE(LOGGING, SLOG_SYSLOG)
		AC_MSG_RESULT(syslog)
		;;
    file)	AC_DEFINE(LOGGING, SLOG_FILE)
		AC_MSG_RESULT(file)
		;;
    both)	AC_DEFINE(LOGGING, SLOG_BOTH)
		AC_MSG_RESULT(both)
		;;
    *)		AC_MSG_ERROR(["unknown argument to --with-logging: $with_logging"])
		;;
esac], [AC_DEFINE(LOGGING, SLOG_SYSLOG) AC_MSG_RESULT(syslog)])

AC_ARG_WITH(logfac, [AS_HELP_STRING([--with-logfac], [syslog facility to log with (default is "auth")])],
[case $with_logfac in
    yes)	AC_MSG_ERROR(["must give --with-logfac an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-logfac not supported."])
		;;
    authpriv|auth|daemon|user|local0|local1|local2|local3|local4|local5|local6|local7)		logfac=$with_logfac
		;;
    *)		AC_MSG_ERROR(["$with_logfac is not a supported syslog facility."])
		;;
esac])

AC_MSG_CHECKING(at which syslog priority to log commands)
AC_ARG_WITH(goodpri, [AS_HELP_STRING([--with-goodpri], [syslog priority for commands (def is "notice")])],
[case $with_goodpri in
    yes)	AC_MSG_ERROR(["must give --with-goodpri an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-goodpri not supported."])
		;;
    alert|crit|debug|emerg|err|info|notice|warning)
		goodpri=$with_goodpri
		;;
    *)		AC_MSG_ERROR(["$with_goodpri is not a supported syslog priority."])
		;;
esac])
AC_DEFINE_UNQUOTED(PRI_SUCCESS, "$goodpri", [The syslog priority sudo will use for successful attempts.])
AC_MSG_RESULT($goodpri)

AC_MSG_CHECKING(at which syslog priority to log failures)
AC_ARG_WITH(badpri, [AS_HELP_STRING([--with-badpri], [syslog priority for failures (def is "alert")])],
[case $with_badpri in
    yes)	AC_MSG_ERROR(["must give --with-badpri an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-badpri not supported."])
		;;
    alert|crit|debug|emerg|err|info|notice|warning)
		badpri=$with_badpri
		;;
    *)		AC_MSG_ERROR([$with_badpri is not a supported syslog priority.])
		;;
esac])
AC_DEFINE_UNQUOTED(PRI_FAILURE, "$badpri", [The syslog priority sudo will use for unsuccessful attempts/errors.])
AC_MSG_RESULT($badpri)

AC_ARG_WITH(logpath, [AS_HELP_STRING([--with-logpath], [path to the sudo log file])],
[case $with_logpath in
    yes)	AC_MSG_ERROR(["must give --with-logpath an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-logpath not supported."])
		;;
esac])

AC_MSG_CHECKING(how long a line in the log file should be)
AC_ARG_WITH(loglen, [AS_HELP_STRING([--with-loglen], [maximum length of a log file line (default is 80)])],
[case $with_loglen in
    yes)	AC_MSG_ERROR(["must give --with-loglen an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-loglen not supported."])
		;;
    [[0-9]]*)	loglen=$with_loglen
		;;
    *)		AC_MSG_ERROR(["you must enter a number, not $with_loglen"])
		;;
esac])
AC_DEFINE_UNQUOTED(MAXLOGFILELEN, $loglen, [The max number of chars per log file line (for line wrapping).])
AC_MSG_RESULT($loglen)

AC_MSG_CHECKING(whether sudo should ignore '.' or '' in \$PATH)
AC_ARG_WITH(ignore-dot, [AS_HELP_STRING([--with-ignore-dot], [ignore '.' in the PATH])],
[case $with_ignore_dot in
    yes)	ignore_dot=on
		;;
    no)		ignore_dot=off
		;;
    *)		AC_MSG_ERROR(["--with-ignore-dot does not take an argument."])
		;;
esac])
if test "$ignore_dot" = "on"; then
    AC_DEFINE(IGNORE_DOT_PATH)
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(whether to send mail when a user is not in sudoers)
AC_ARG_WITH(mail-if-no-user, [AS_HELP_STRING([--without-mail-if-no-user], [do not send mail if user not in sudoers])],
[case $with_mail_if_no_user in
    yes)	mail_no_user=on
		;;
    no)		mail_no_user=off
		;;
    *)		AC_MSG_ERROR(["--with-mail-if-no-user does not take an argument."])
		;;
esac])
if test "$mail_no_user" = "on"; then
    AC_DEFINE(SEND_MAIL_WHEN_NO_USER)
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(whether to send mail when user listed but not for this host)
AC_ARG_WITH(mail-if-no-host, [AS_HELP_STRING([--with-mail-if-no-host], [send mail if user in sudoers but not for this host])],
[case $with_mail_if_no_host in
    yes)	mail_no_host=on
		;;
    no)		mail_no_host=off
		;;
    *)		AC_MSG_ERROR(["--with-mail-if-no-host does not take an argument."])
		;;
esac])
if test "$mail_no_host" = "on"; then
    AC_DEFINE(SEND_MAIL_WHEN_NO_HOST)
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(whether to send mail when a user tries a disallowed command)
AC_ARG_WITH(mail-if-noperms, [AS_HELP_STRING([--with-mail-if-noperms], [send mail if user not allowed to run command])],
[case $with_mail_if_noperms in
    yes)	mail_noperms=on
		;;
    no)		mail_noperms=off
		;;
    *)		AC_MSG_ERROR(["--with-mail-if-noperms does not take an argument."])
		;;
esac])
if test "$mail_noperms" = "on"; then
    AC_DEFINE(SEND_MAIL_WHEN_NOT_OK)
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(who should get the mail that sudo sends)
AC_ARG_WITH(mailto, [AS_HELP_STRING([--with-mailto], [who should get sudo mail (default is "root")])],
[case $with_mailto in
    yes)	AC_MSG_ERROR(["must give --with-mailto an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-mailto not supported."])
		;;
    *)		mailto=$with_mailto
		;;
esac])
AC_DEFINE_UNQUOTED(MAILTO, "$mailto", [The user or email address that sudo mail is sent to.])
AC_MSG_RESULT([$mailto])

AC_ARG_WITH(mailsubject, [AS_HELP_STRING([--with-mailsubject], [subject of sudo mail])],
[case $with_mailsubject in
    yes)	AC_MSG_ERROR(["must give --with-mailsubject an argument."])
		;;
    no)		AC_MSG_WARN([Sorry, --without-mailsubject not supported.])
		;;
    *)		mailsub="$with_mailsubject"
		AC_MSG_CHECKING(sudo mail subject)
		AC_MSG_RESULT([Using alert mail subject: $mailsub])
		;;
esac])
AC_DEFINE_UNQUOTED(MAILSUBJECT, "$mailsub", [The subject of the mail sent by sudo to the MAILTO user/address.])

AC_MSG_CHECKING(for bad password prompt)
AC_ARG_WITH(passprompt, [AS_HELP_STRING([--with-passprompt], [default password prompt])],
[case $with_passprompt in
    yes)	AC_MSG_ERROR(["must give --with-passprompt an argument."])
		;;
    no)		AC_MSG_WARN([Sorry, --without-passprompt not supported.])
		;;
    *)		passprompt="$with_passprompt"
esac])
AC_MSG_RESULT($passprompt)
AC_DEFINE_UNQUOTED(PASSPROMPT, "$passprompt", [The default password prompt.])

AC_MSG_CHECKING(for bad password message)
AC_ARG_WITH(badpass-message, [AS_HELP_STRING([--with-badpass-message], [message the user sees when the password is wrong])],
[case $with_badpass_message in
    yes)	AC_MSG_ERROR(["Must give --with-badpass-message an argument."])
		;;
    no)		AC_MSG_WARN([Sorry, --without-badpass-message not supported.])
		;;
    *)		badpass_message="$with_badpass_message"
		;;
esac])
AC_DEFINE_UNQUOTED(INCORRECT_PASSWORD, "$badpass_message", [The message given when a bad password is entered.])
AC_MSG_RESULT([$badpass_message])

AC_MSG_CHECKING(whether to expect fully qualified hosts in sudoers)
AC_ARG_WITH(fqdn, [AS_HELP_STRING([--with-fqdn], [expect fully qualified hosts in sudoers])],
[case $with_fqdn in
    yes)	fqdn=on
		;;
    no)		fqdn=off
		;;
    *)		AC_MSG_ERROR(["--with-fqdn does not take an argument."])
		;;
esac])
if test "$fqdn" = "on"; then
    AC_DEFINE(FQDN)
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

AC_ARG_WITH(timedir, [AS_HELP_STRING([--with-timedir=DIR], [deprecated])],
[case $with_timedir in
    *)		AC_MSG_ERROR(["--without-timedir no longer supported, see --with-rundir."])
		;;
esac])

AC_ARG_WITH(rundir, [AS_HELP_STRING([--with-rundir=DIR], [path to the sudo time stamp parent dir])],
[case $with_rundir in
    yes)	AC_MSG_ERROR(["must give --with-rundir an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-rundir not supported."])
		;;
esac])

AC_ARG_WITH(vardir, [AS_HELP_STRING([--with-vardir=DIR], [path to the sudo var dir])],
[case $with_vardir in
    yes)	AC_MSG_ERROR(["must give --with-vardir an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-vardir not supported."])
		;;
esac])

AC_ARG_WITH(iologdir, [AS_HELP_STRING([--with-iologdir=DIR], [directory to store sudo I/O log files in])],
[case $with_iologdir in
    yes)    ;;
    no)     AC_MSG_ERROR(["--without-iologdir not supported."])
	    ;;
esac])

AC_ARG_WITH(tzdir, [AS_HELP_STRING([--with-tzdir=DIR], [path to the time zone data directory])],
[case $with_tzdir in
    yes)	AC_MSG_ERROR(["must give --with-tzdir an argument."])
		;;
esac])

AC_ARG_WITH(sendmail, [AS_HELP_STRING([--with-sendmail], [set path to sendmail])
AS_HELP_STRING([--without-sendmail], [do not send mail at all])],
[case $with_sendmail in
    yes)	with_sendmail=""
		;;
    no)		;;
    *)		SUDO_DEFINE_UNQUOTED(_PATH_SUDO_SENDMAIL, "$with_sendmail")
		;;
esac])

AC_ARG_WITH(sudoers-mode, [AS_HELP_STRING([--with-sudoers-mode], [mode of sudoers file (defaults to 0440)])],
[case $with_sudoers_mode in
    yes)	AC_MSG_ERROR(["must give --with-sudoers-mode an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-sudoers-mode not supported."])
		;;
    [[1-9]]*)	SUDOERS_MODE=0${with_sudoers_mode}
		;;
    0*)		SUDOERS_MODE=$with_sudoers_mode
		;;
    *)		AC_MSG_ERROR(["you must use an octal mode, not a name."])
		;;
esac])

AC_ARG_WITH(sudoers-uid, [AS_HELP_STRING([--with-sudoers-uid], [uid that owns sudoers file (defaults to 0)])],
[case $with_sudoers_uid in
    yes)	AC_MSG_ERROR(["must give --with-sudoers-uid an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-sudoers-uid not supported."])
		;;
    [[0-9]]*)	SUDOERS_UID=$with_sudoers_uid
		;;
    *)		AC_MSG_ERROR(["you must use an unsigned numeric uid, not a name."])
		;;
esac])

AC_ARG_WITH(sudoers-gid, [AS_HELP_STRING([--with-sudoers-gid], [gid that owns sudoers file (defaults to 0)])],
[case $with_sudoers_gid in
    yes)	AC_MSG_ERROR(["must give --with-sudoers-gid an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-sudoers-gid not supported."])
		;;
    [[0-9]]*)	SUDOERS_GID=$with_sudoers_gid
		;;
    *)		AC_MSG_ERROR(["you must use an unsigned numeric gid, not a name."])
		;;
esac])

AC_MSG_CHECKING(for umask programs should be run with)
AC_ARG_WITH(umask, [AS_HELP_STRING([--with-umask], [umask with which the prog should run (default is 022)])
AS_HELP_STRING([--without-umask], [Preserves the umask of the user invoking sudo.])],
[case $with_umask in
    yes)	AC_MSG_ERROR(["must give --with-umask an argument."])
		;;
    no)		sudo_umask=0777
		;;
    [[0-9]]*)	sudo_umask=$with_umask
		;;
    *)		AC_MSG_ERROR(["you must enter a numeric mask."])
		;;
esac])
AC_DEFINE_UNQUOTED(SUDO_UMASK, $sudo_umask, [The umask that the sudo-run prog should use.])
if test "$sudo_umask" = "0777"; then
    AC_MSG_RESULT(user)
else
    AC_MSG_RESULT($sudo_umask)
fi

AC_ARG_WITH(umask-override, [AS_HELP_STRING([--with-umask-override], [Use the umask specified in sudoers even if it is less restrictive than the user's.])],
[case $with_umask_override in
    yes)	AC_DEFINE(UMASK_OVERRIDE)
		umask_override=on
		;;
    no)		umask_override=off
		;;
    *)		AC_MSG_ERROR(["--with-umask-override does not take an argument."])
		;;
esac])

AC_MSG_CHECKING(for default user to run commands as)
AC_ARG_WITH(runas-default, [AS_HELP_STRING([--with-runas-default], [User to run commands as (default is "root")])],
[case $with_runas_default in
    yes)	AC_MSG_ERROR(["must give --with-runas-default an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-runas-default not supported."])
		;;
    *)		runas_default="$with_runas_default"
		;;
esac])
AC_DEFINE_UNQUOTED(RUNAS_DEFAULT, "$runas_default", [The user sudo should run commands as by default.])
AC_MSG_RESULT([$runas_default])

AC_ARG_WITH(exempt, [AS_HELP_STRING([--with-exempt=group], [no passwd needed for users in this group])],
[case $with_exempt in
    yes)	AC_MSG_ERROR(["must give --with-exempt an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-exempt not supported."])
		;;
    *)		AC_DEFINE_UNQUOTED(EXEMPTGROUP, "$with_exempt", [If defined, users in this group need not enter a passwd (ie "sudo").])
		AC_MSG_CHECKING(for group to be exempt from password)
		AC_MSG_RESULT([$with_exempt])
		;;
esac])

AC_MSG_CHECKING(for editor that visudo should use)
AC_ARG_WITH(editor, [AS_HELP_STRING([--with-editor=path], [Default editor for visudo (defaults to vi)])],
[case $with_editor in
    yes)	AC_MSG_ERROR(["must give --with-editor an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-editor not supported."])
		;;
    *)		AC_DEFINE_UNQUOTED(EDITOR, "$with_editor", [A colon-separated list of pathnames to be used as the editor for visudo.])
		AC_MSG_RESULT([$with_editor])
		editor="$with_editor"
		;;
esac], [AC_DEFINE(EDITOR, _PATH_VI) AC_MSG_RESULT(vi)])

AC_MSG_CHECKING(whether to obey EDITOR and VISUAL environment variables)
AC_ARG_WITH(env-editor, [AS_HELP_STRING([--with-env-editor], [Use the environment variable EDITOR for visudo])],
[case $with_env_editor in
    yes)	env_editor=on
		;;
    no)		env_editor=off
		;;
    *)		AC_MSG_ERROR(["--with-env-editor does not take an argument."])
		;;
esac])
if test "$env_editor" = "on"; then
    AC_DEFINE(ENV_EDITOR)
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

AC_MSG_CHECKING(number of tries a user gets to enter their password)
AC_ARG_WITH(passwd-tries, [AS_HELP_STRING([--with-passwd-tries], [number of tries to enter password (default is 3)])],
[case $with_passwd_tries in
    yes)	;;
    no)		AC_MSG_ERROR(["--without-editor not supported."])
		;;
    [[1-9]]*)	passwd_tries=$with_passwd_tries
		;;
    *)		AC_MSG_ERROR(["you must enter the numer of tries, > 0"])
		;;
esac])
AC_DEFINE_UNQUOTED(TRIES_FOR_PASSWORD, $passwd_tries, [The number of tries a user gets to enter their password.])
AC_MSG_RESULT($passwd_tries)

AC_MSG_CHECKING(time in minutes after which sudo will ask for a password again)
AC_ARG_WITH(timeout, [AS_HELP_STRING([--with-timeout], [minutes before sudo asks for passwd again (def is 5 minutes)])],
[case $with_timeout in
    yes)	;;
    no)		timeout=0
		;;
    [[0-9]]*)	timeout=$with_timeout
		;;
    *)		AC_MSG_ERROR(["you must enter the numer of minutes."])
		;;
esac])
AC_DEFINE_UNQUOTED(TIMEOUT, $timeout, [The number of minutes before sudo asks for a password again.])
AC_MSG_RESULT($timeout)

AC_MSG_CHECKING(time in minutes after the password prompt will time out)
AC_ARG_WITH(password-timeout, [AS_HELP_STRING([--with-password-timeout], [passwd prompt timeout in minutes (default is 5 minutes)])],
[case $with_password_timeout in
    yes)	;;
    no)		password_timeout=0
		;;
    [[0-9]]*)	password_timeout=$with_password_timeout
		;;
    *)		AC_MSG_ERROR(["you must enter the numer of minutes."])
		;;
esac])
AC_DEFINE_UNQUOTED(PASSWORD_TIMEOUT, $password_timeout, [The passwd prompt timeout (in minutes).])
AC_MSG_RESULT($password_timeout)

AC_ARG_WITH(tty-tickets, [AS_HELP_STRING([--with-tty-tickets], [use a different ticket file for each tty])],
[case $with_tty_tickets in
    yes)	timestamp_type=tty
		;;
    no)		timestamp_type=global
		;;
    *)		AC_MSG_ERROR(["--with-tty-tickets does not take an argument."])
		;;
esac])

AC_MSG_CHECKING(whether to include insults)
AC_ARG_WITH(insults, [AS_HELP_STRING([--with-insults], [insult the user for entering an incorrect password])],
[case $with_insults in
    yes)	insults=on
		with_classic_insults=yes
		with_csops_insults=yes
		;;
    disabled)	insults=off
		with_classic_insults=yes
		with_csops_insults=yes
		;;
    no)		insults=off
		;;
    *)		AC_MSG_ERROR(["--with-insults does not take an argument."])
		;;
esac])
if test "$insults" = "on"; then
    AC_DEFINE(USE_INSULTS)
    AC_MSG_RESULT(yes)
else
    AC_MSG_RESULT(no)
fi

AC_ARG_WITH(all-insults, [AS_HELP_STRING([--with-all-insults], [include all the sudo insult sets])],
[case $with_all_insults in
    yes)	with_classic_insults=yes
		with_csops_insults=yes
		with_hal_insults=yes
		with_goons_insults=yes
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-all-insults does not take an argument."])
		;;
esac])

AC_ARG_WITH(classic-insults, [AS_HELP_STRING([--with-classic-insults], [include the insults from the "classic" sudo])],
[case $with_classic_insults in
    yes)	AC_DEFINE(CLASSIC_INSULTS)
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-classic-insults does not take an argument."])
		;;
esac])

AC_ARG_WITH(csops-insults, [AS_HELP_STRING([--with-csops-insults], [include CSOps insults])],
[case $with_csops_insults in
    yes)	AC_DEFINE(CSOPS_INSULTS)
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-csops-insults does not take an argument."])
		;;
esac])

AC_ARG_WITH(hal-insults, [AS_HELP_STRING([--with-hal-insults], [include 2001-like insults])],
[case $with_hal_insults in
    yes)	AC_DEFINE(HAL_INSULTS)
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-hal-insults does not take an argument."])
		;;
esac])

AC_ARG_WITH(goons-insults, [AS_HELP_STRING([--with-goons-insults], [include the insults from the "Goon Show"])],
[case $with_goons_insults in
    yes)	AC_DEFINE(GOONS_INSULTS)
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-goons-insults does not take an argument."])
		;;
esac])

AC_ARG_WITH(nsswitch, [AS_HELP_STRING([--with-nsswitch[[=PATH]]], [path to nsswitch.conf])],
[case $with_nsswitch in
    no)		;;
    yes)	with_nsswitch="/etc/nsswitch.conf"
		;;
    *)		;;
esac])

AC_ARG_WITH(ldap, [AS_HELP_STRING([--with-ldap[[=DIR]]], [enable LDAP support])],
[case $with_ldap in
    no)		;;
    *)		AC_DEFINE(HAVE_LDAP)
		AC_MSG_CHECKING(whether to use sudoers from LDAP)
		AC_MSG_RESULT(yes)
		;;
esac])

AC_ARG_WITH(ldap-conf-file, [AS_HELP_STRING([--with-ldap-conf-file], [path to LDAP configuration file])])
test -n "$with_ldap_conf_file" && ldap_conf="$with_ldap_conf_file"
SUDO_DEFINE_UNQUOTED(_PATH_LDAP_CONF, "$ldap_conf", [Path to the ldap.conf file])

AC_ARG_WITH(ldap-secret-file, [AS_HELP_STRING([--with-ldap-secret-file], [path to LDAP secret password file])])
test -n "$with_ldap_secret_file" && ldap_secret="$with_ldap_secret_file"
SUDO_DEFINE_UNQUOTED(_PATH_LDAP_SECRET, "$ldap_secret", [Path to the ldap.secret file])

AC_ARG_WITH(pc-insults, [AS_HELP_STRING([--with-pc-insults], [replace politically incorrect insults with less offensive ones])],
[case $with_pc_insults in
    yes)	AC_DEFINE(PC_INSULTS)
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-pc-insults does not take an argument."])
		;;
esac])

dnl include all insult sets on one line
if test "$insults" = "on"; then
    AC_MSG_CHECKING(which insult sets to include)
    i=""
    test "$with_goons_insults" = "yes" && i="goons ${i}"
    test "$with_hal_insults" = "yes" && i="hal ${i}"
    test "$with_csops_insults" = "yes" && i="csops ${i}"
    test "$with_classic_insults" = "yes" && i="classic ${i}"
    AC_MSG_RESULT([$i])
fi

AC_MSG_CHECKING(whether to override the user's path)
AC_ARG_WITH(secure-path, [AS_HELP_STRING([--with-secure-path], [override the user's path with a built-in one])],
[case $with_secure_path in
    yes)	with_secure_path="/bin:/usr/ucb:/usr/bin:/usr/sbin:/sbin:/usr/etc:/etc"
		AC_DEFINE_UNQUOTED(SECURE_PATH, "$with_secure_path")
		AC_MSG_RESULT([$with_secure_path])
		secure_path="set to $with_secure_path"
		;;
    no)		AC_MSG_RESULT(no)
		;;
    *)		AC_DEFINE_UNQUOTED(SECURE_PATH, "$with_secure_path")
		AC_MSG_RESULT([$with_secure_path])
		secure_path="set to F<$with_secure_path>"
		;;
esac], AC_MSG_RESULT(no))

AC_MSG_CHECKING(whether to get ip addresses from the network interfaces)
AC_ARG_WITH(interfaces, [AS_HELP_STRING([--without-interfaces], [don't try to read the ip addr of ether interfaces])],
[case $with_interfaces in
    yes)	AC_MSG_RESULT(yes)
		;;
    no)		AC_DEFINE(STUB_LOAD_INTERFACES)
		AC_MSG_RESULT(no)
		;;
    *)		AC_MSG_ERROR(["--with-interfaces does not take an argument."])
		;;
esac], AC_MSG_RESULT(yes))

AC_MSG_CHECKING(whether to use an askpass helper)
AC_ARG_WITH(askpass, [AS_HELP_STRING([--with-askpass=PATH], [Fully qualified pathname of askpass helper])],
[case $with_askpass in
    yes)	AC_MSG_ERROR(["--with-askpass takes a path as an argument."])
		;;
    no)		;;
    *)		;;
esac], [
    with_askpass=no
    AC_MSG_RESULT(no)
])
if test X"$with_askpass" != X"no"; then
    SUDO_DEFINE_UNQUOTED(_PATH_SUDO_ASKPASS, "$with_askpass")
else
    SUDO_DEFINE_UNQUOTED(_PATH_SUDO_ASKPASS, NULL)
fi

AC_ARG_WITH(exampledir, [AS_HELP_STRING([--with-exampledir=DIR], [path to install sudo examples in])],
[case $with_exampledir in
    yes)	AC_MSG_ERROR(["must give --with-exampledir an argument."])
		;;
    no)		AC_MSG_ERROR(["--without-exampledir not supported."])
		;;
    *)		exampledir="$with_exampledir"
esac])

AC_ARG_WITH(plugindir, [AS_HELP_STRING([--with-plugindir=DIR], [set directory to load plugins from])],
[case $with_plugindir in
    no)		AC_MSG_ERROR(["illegal argument: --without-plugindir."])
		;;
    *)		;;
esac], [with_plugindir="$libexecdir/sudo"])

AC_ARG_WITH(man, [AS_HELP_STRING([--with-man], [manual pages use man macros])],
[case $with_man in
    yes)	MANTYPE=man
		;;
    no)		AC_MSG_ERROR(["--without-man not supported."])
		;;
    *)		AC_MSG_ERROR(["ignoring unknown argument to --with-man: $with_man."])
		;;
esac])

AC_ARG_WITH(mdoc, [AS_HELP_STRING([--with-mdoc], [manual pages use mdoc macros])],
[case $with_mdoc in
    yes)	MANTYPE=mdoc
		;;
    no)		AC_MSG_ERROR(["--without-mdoc not supported."])
		;;
    *)		AC_MSG_ERROR(["ignoring unknown argument to --with-mdoc: $with_mdoc."])
		;;
esac])

dnl
dnl Options for --enable
dnl

AC_MSG_CHECKING(whether to do user authentication by default)
AC_ARG_ENABLE(authentication,
[AS_HELP_STRING([--disable-authentication], [Do not require authentication by default])],
[ case "$enableval" in
    yes)	AC_MSG_RESULT(yes)
		;;
    no)		AC_MSG_RESULT(no)
		AC_DEFINE(NO_AUTHENTICATION)
		;;
    *)		AC_MSG_RESULT(no)
    		AC_MSG_WARN([Ignoring unknown argument to --enable-authentication: $enableval])
		;;
  esac
], AC_MSG_RESULT(yes))

AC_MSG_CHECKING(whether to disable running the mailer as root)
AC_ARG_ENABLE(root-mailer,
[AS_HELP_STRING([--disable-root-mailer], [Don't run the mailer as root, run as the user])],
[ case "$enableval" in
    yes)	AC_MSG_RESULT(no)
		;;
    no)		AC_MSG_RESULT(yes)
		AC_DEFINE(NO_ROOT_MAILER)
		;;
    *)		AC_MSG_RESULT(no)
    		AC_MSG_WARN([Ignoring unknown argument to --enable-root-mailer: $enableval])
		;;
  esac
], AC_MSG_RESULT(no))

AC_ARG_ENABLE(setreuid,
[AS_HELP_STRING([--disable-setreuid], [Don't try to use the setreuid() function])],
[ case "$enableval" in
    no)		SKIP_SETREUID=yes
		;;
    *)		;;
  esac
])

AC_ARG_ENABLE(setresuid,
[AS_HELP_STRING([--disable-setresuid], [Don't try to use the setresuid() function])],
[ case "$enableval" in
    no)		SKIP_SETRESUID=yes
		;;
    *)		;;
  esac
])

AC_MSG_CHECKING(whether to disable shadow password support)
AC_ARG_ENABLE(shadow,
[AS_HELP_STRING([--disable-shadow], [Never use shadow passwords])],
[ case "$enableval" in
    yes)	AC_MSG_RESULT(no)
		;;
    no)		AC_MSG_RESULT(yes)
		CHECKSHADOW="false"
		;;
    *)		AC_MSG_RESULT(no)
    		AC_MSG_WARN([Ignoring unknown argument to --enable-shadow: $enableval])
		;;
  esac
], AC_MSG_RESULT(no))

AC_MSG_CHECKING(whether root should be allowed to use sudo)
AC_ARG_ENABLE(root-sudo,
[AS_HELP_STRING([--disable-root-sudo], [Don't allow root to run sudo])],
[ case "$enableval" in
    yes)	AC_MSG_RESULT(yes)
		;;
    no)		AC_DEFINE(NO_ROOT_SUDO)
		AC_MSG_RESULT(no)
		root_sudo=off
		;;
    *)		AC_MSG_ERROR(["--enable-root-sudo does not take an argument."])
		;;
  esac
], AC_MSG_RESULT(yes))

AC_MSG_CHECKING(whether to log the hostname in the log file)
AC_ARG_ENABLE(log-host,
[AS_HELP_STRING([--enable-log-host], [Log the hostname in the log file])],
[ case "$enableval" in
    yes)	AC_MSG_RESULT(yes)
		AC_DEFINE(HOST_IN_LOG)
		;;
    no)		AC_MSG_RESULT(no)
		;;
    *)		AC_MSG_RESULT(no)
    		AC_MSG_WARN([Ignoring unknown argument to --enable-log-host: $enableval])
		;;
  esac
], AC_MSG_RESULT(no))

AC_MSG_CHECKING(whether to invoke a shell if sudo is given no arguments)
AC_ARG_ENABLE(noargs-shell,
[AS_HELP_STRING([--enable-noargs-shell], [If sudo is given no arguments run a shell])],
[ case "$enableval" in
    yes)	AC_MSG_RESULT(yes)
		AC_DEFINE(SHELL_IF_NO_ARGS)
		;;
    no)		AC_MSG_RESULT(no)
		;;
    *)		AC_MSG_RESULT(no)
    		AC_MSG_WARN([Ignoring unknown argument to --enable-noargs-shell: $enableval])
		;;
  esac
], AC_MSG_RESULT(no))

AC_MSG_CHECKING(whether to set \$HOME to target user in shell mode)
AC_ARG_ENABLE(shell-sets-home,
[AS_HELP_STRING([--enable-shell-sets-home], [Set $HOME to target user in shell mode])],
[ case "$enableval" in
    yes)	AC_MSG_RESULT(yes)
		AC_DEFINE(SHELL_SETS_HOME)
		;;
    no)		AC_MSG_RESULT(no)
		;;
    *)		AC_MSG_RESULT(no)
    		AC_MSG_WARN([Ignoring unknown argument to --enable-shell-sets-home: $enableval])
		;;
  esac
], AC_MSG_RESULT(no))

AC_MSG_CHECKING(whether to disable 'command not found' messages)
AC_ARG_ENABLE(path_info,
[AS_HELP_STRING([--disable-path-info], [Print 'command not allowed' not 'command not found'])],
[ case "$enableval" in
    yes)	AC_MSG_RESULT(no)
		;;
    no)		AC_MSG_RESULT(yes)
		AC_DEFINE(DONT_LEAK_PATH_INFO)
		path_info=off
		;;
    *)		AC_MSG_RESULT(no)
		AC_MSG_WARN([Ignoring unknown argument to --enable-path-info: $enableval])
		;;
  esac
], AC_MSG_RESULT(no))

AC_MSG_CHECKING(whether to enable environment debugging)
AC_ARG_ENABLE(env_debug,
[AS_HELP_STRING([--enable-env-debug], [Whether to enable environment debugging.])],
[ case "$enableval" in
    yes)	AC_MSG_RESULT(yes)
		AC_DEFINE(ENV_DEBUG)
		;;
    no)		AC_MSG_RESULT(no)
		;;
    *)		AC_MSG_RESULT(no)
    		AC_MSG_WARN([Ignoring unknown argument to --enable-env-debug: $enableval])
		;;
  esac
], AC_MSG_RESULT(no))

AC_ARG_ENABLE(zlib,
[AS_HELP_STRING([--enable-zlib[[=PATH]]], [Whether to enable or disable zlib])],
[], [enable_zlib=yes])

AC_MSG_CHECKING(whether to enable environment resetting by default)
AC_ARG_ENABLE(env_reset,
[AS_HELP_STRING([--enable-env-reset], [Whether to enable environment resetting by default.])],
[ case "$enableval" in
    yes)	env_reset=on
		;;
    no)		env_reset=off
		;;
    *)		env_reset=on
    		AC_MSG_WARN([Ignoring unknown argument to --enable-env-reset: $enableval])
		;;
  esac
])
if test "$env_reset" = "on"; then
    AC_MSG_RESULT(yes)
    AC_DEFINE(ENV_RESET, 1)
else
    AC_MSG_RESULT(no)
    AC_DEFINE(ENV_RESET, 0)
fi

AC_ARG_ENABLE(warnings,
[AS_HELP_STRING([--enable-warnings], [Whether to enable compiler warnings])],
[ case "$enableval" in
    yes)    ;;
    no)	    ;;
    *)	    AC_MSG_WARN([Ignoring unknown argument to --enable-warnings: $enableval])
	    ;;
  esac
])

AC_ARG_ENABLE(werror,
[AS_HELP_STRING([--enable-werror], [Whether to enable the -Werror compiler option])],
[ case "$enableval" in
    yes)    ;;
    no)	    ;;
    *)	    AC_MSG_WARN([Ignoring unknown argument to --enable-werror: $enableval])
	    ;;
  esac
])

AC_ARG_ENABLE(openssl,
[AS_HELP_STRING([--enable-openssl], [Use OpenSSL's message digest functions instead of sudo's])],
[ case $enableval in
    no)		;;
    *)		LIBMD="-lcrypto"
		FILEDIGEST=filedigest_openssl.lo
		if test "$enableval" != "yes"; then
		    AX_APPEND_FLAG([-I${enableval}/include], [CPPFLAGS])
		    SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${enableval}/lib])
		fi
		;;
 esac
])

AC_ARG_ENABLE(gcrypt,
[AS_HELP_STRING([--enable-gcrypt], [Use GNU crypt's message digest functions instead of sudo's])],
[ case $enableval in
    no)		;;
    *)		LIBMD="-lgcrypt"
		FILEDIGEST=filedigest_gcrypt.lo
		if test "$enableval" != "yes"; then
		    AX_APPEND_FLAG([-I${enableval}/include], [CPPFLAGS])
		    SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${enableval}/lib])
		fi
		;;
 esac
])

AC_ARG_ENABLE(hardening,
[AS_HELP_STRING([--disable-hardening], [Do not use compiler/linker exploit mitigation options])],
[], [enable_hardening=yes])

AC_ARG_ENABLE(pie,
[AS_HELP_STRING([--enable-pie], [Build sudo as a position independent executable.])])

AC_ARG_ENABLE(asan,
[AS_HELP_STRING([--enable-asan], [Build sudo with address sanitizer support.])])

AC_ARG_ENABLE(poll,
[AS_HELP_STRING([--disable-poll], [Use select() instead of poll().])])

AC_ARG_ENABLE(admin-flag,
[AS_HELP_STRING([--enable-admin-flag], [Whether to create a Ubuntu-style admin flag file])],
[ case "$enableval" in
    yes)    AC_DEFINE(USE_ADMIN_FLAG)
	    ;;
    no)	    ;;
    *)	    AC_MSG_WARN([Ignoring unknown argument to --enable-admin-flag: $enableval])
	    ;;
  esac
])

AC_ARG_ENABLE(nls,
[AS_HELP_STRING([--disable-nls], [Disable natural language support using gettext])],
[], [enable_nls=yes])

AC_ARG_ENABLE(rpath,
[AS_HELP_STRING([--disable-rpath], [Disable passing of -Rpath to the linker])],
[], [enable_rpath=yes])

AC_ARG_ENABLE(static-sudoers,
[AS_HELP_STRING([--enable-static-sudoers], [Build the sudoers policy module as part of the sudo binary instead as a plugin])],
[], [enable_static_sudoers=no])

AC_ARG_ENABLE(shared_libutil,
[AS_HELP_STRING([--disable-shared-libutil], [Disable use of the libsudo_util shared library.])],
[], [enable_shared_libutil=yes])

AC_ARG_ENABLE(tmpfiles.d,
[AS_HELP_STRING([--enable-tmpfiles.d=DIR], [Set the path to the systemd tmpfiles.d directory.])],
[case $enableval in
    yes)	TMPFILES_D=/usr/lib/tmpfiles.d
		;;
    no)		TMPFILES_D=
		;;
    *)		TMPFILES_D="$enableval"
esac], [
    test -f /usr/lib/tmpfiles.d/systemd.conf && TMPFILES_D=/usr/lib/tmpfiles.d
])

AC_ARG_ENABLE(devsearch,
[AS_HELP_STRING([--enable-devsearch=PATH], [The colon-delimited path to search for device nodes when determing the tty name.])],
[case $enableval in
    yes)	# use default value
		;;
    no)		AC_MSG_WARN([Ignoring attempt to disable the device search path])
		;;
    *)		devsearch="$enableval"
		;;
esac])
ds="`echo \"$devsearch\"|sed 's@/dev/*\([[^:]]*:*\)@_PATH_DEV \"\1\" @g'`"
SUDO_DEFINE_UNQUOTED(_PATH_SUDO_DEVSEARCH, $ds)

AC_ARG_WITH(selinux, [AS_HELP_STRING([--with-selinux], [enable SELinux support])],
[case $with_selinux in
    yes)	SELINUX_USAGE="[[-r role]] [[-t type]] "
    		AC_DEFINE(HAVE_SELINUX)
		SUDO_LIBS="${SUDO_LIBS} -lselinux"
		SUDO_OBJS="${SUDO_OBJS} selinux.o"
		PROGS="${PROGS} sesh"
		SEMAN=1
		AC_CHECK_LIB([selinux], [setkeycreatecon],
		    [AC_DEFINE(HAVE_SETKEYCREATECON)])
		;;
    no)		;;
    *)		AC_MSG_ERROR(["--with-selinux does not take an argument."])
		;;
esac], [with_selinux=no])

AC_ARG_ENABLE(sasl,
[AS_HELP_STRING([--enable-sasl], [Enable/disable LDAP SASL support])],
[ case "$enableval" in
    yes|no) ;;
    *)	    AC_MSG_WARN([Ignoring unknown argument to --enable-sasl: $enableval])
	    ;;
  esac
])

AC_ARG_ENABLE(timestamp-type,
[AS_HELP_STRING([--timestamp-type=TYPE], [Set the default time stamp record type to global, ppid or tty.])],
[ case "$enableval" in
    global|ppid|tty)
	    timestamp_type=$enableval
	    ;;
    *)	    AC_MSG_WARN([Ignoring unknown argument to --enable-timestamp-type: $enableval])
	    ;;
  esac
])
AC_DEFINE_UNQUOTED(TIMESTAMP_TYPE, $timestamp_type)

dnl
dnl gss_krb5_ccache_name() may not work on Heimdal so we don't use it by default
dnl
AC_ARG_ENABLE(gss_krb5_ccache_name,
[AS_HELP_STRING([--enable-gss-krb5-ccache-name], [Use GSS-API to set the Kerberos V cred cache name])],
[check_gss_krb5_ccache_name=$enableval], [check_gss_krb5_ccache_name=no])

dnl
dnl C compiler checks
dnl
AC_SEARCH_LIBS([strerror], [cposix])
AC_PROG_CPP
AC_CHECK_TOOL(AR, ar, false)
AC_CHECK_TOOL(RANLIB, ranlib, :)
if test X"$AR" = X"false"; then
    AC_MSG_ERROR([the "ar" utility is required to build sudo])
fi

if test "x$ac_cv_prog_cc_c89" = "xno"; then
    AC_MSG_ERROR([Sudo version $PACKAGE_VERSION requires an ANSI C compiler to build.])
fi

dnl
dnl If the user specified --disable-static, override them or we'll
dnl be unable to build the executables in the sudoers plugin dir.
dnl
if test "$enable_static" = "no"; then
    AC_MSG_WARN([Ignoring --disable-static, sudo does not install static libs])
    enable_static=yes
fi

dnl
dnl Set host variables and m4 macro dir
dnl
AC_CANONICAL_HOST
AC_CONFIG_MACRO_DIR([m4])

dnl
dnl On AIX we need to force libtool to install .so files for the plugins
dnl instead of a .a file that contains the .so.  We do this by enabling
dnl runtime linking (where the .so file is installed).  This must happen
dnl before the call to LT_INIT
dnl
case "$host_os" in
aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
    AX_APPEND_FLAG([-Wl,-brtl], [LDFLAGS])
    ;;
esac

dnl
dnl Libtool init, we require libtool 2.2.6b or higher
dnl
LT_PREREQ([2.2.6b])
LT_INIT([dlopen])

dnl
dnl Allow the user to specify an alternate libtool.
dnl XXX - should be able to skip LT_INIT if we are using a different libtool
dnl
AC_ARG_WITH(libtool, [AS_HELP_STRING([--with-libtool=PATH], [specify path to libtool])],
[case $with_libtool in
    yes|builtin) ;;
    no)		AC_MSG_ERROR(["--without-libtool not supported."])
		;;
    system)	LIBTOOL=libtool
		;;
    *)		LIBTOOL="$with_libtool"
		;;
esac])

dnl
dnl Defer with_noexec until after libtool magic runs
dnl
if test "$enable_shared" = "no"; then
    with_noexec=no
    enable_dlopen=no
    lt_cv_dlopen=none
    lt_cv_dlopen_libs=
    ac_cv_func_dlopen=no
    LT_LDFLAGS=-static
fi
LIBDL="$lt_cv_dlopen_libs"
SHLIB_ENABLE="$enable_dlopen"

AC_MSG_CHECKING(path to sudo_noexec.so)
AC_ARG_WITH(noexec, [AS_HELP_STRING([--with-noexec[[=PATH]]], [fully qualified pathname of sudo_noexec.so])],
[case $with_noexec in
    yes)	with_noexec="$libexecdir/sudo/sudo_noexec.so"
		;;
    no)		;;
    *)		;;
esac], [with_noexec="$libexecdir/sudo/sudo_noexec.so"])
AC_MSG_RESULT($with_noexec)
NOEXECFILE="sudo_noexec.so"
NOEXECDIR="`echo $with_noexec|sed -e 's:^${\([[^}]]*\)}:$(\1):' -e 's:^\(.*\)/[[^/]]*:\1:'`"

dnl
dnl Find programs we use
dnl
AC_PATH_PROG(UNAMEPROG, [uname], [uname])
AC_PATH_PROG(TRPROG, [tr], [tr])
AC_PATH_PROG(MANDOCPROG, [mandoc], [mandoc])
if test "$MANDOCPROG" != "mandoc"; then
    : ${MANTYPE='mdoc'}
else
    AC_PATH_PROG(NROFFPROG, [nroff])
    if test -n "$NROFFPROG"; then
	test -n "$MANTYPE" && sudo_cv_var_mantype="$MANTYPE"
	AC_CACHE_CHECK([which macro set to use for manual pages],
	    [sudo_cv_var_mantype],
	    [
		sudo_cv_var_mantype="man"
		echo ".Sh NAME" > conftest
		echo ".Nm sudo" >> conftest
		echo ".Nd sudo" >> conftest
		echo ".Sh DESCRIPTION" >> conftest
		echo "sudo" >> conftest
		if $NROFFPROG -mdoc conftest >/dev/null 2>&1; then
		    sudo_cv_var_mantype="mdoc"
		fi
		rm -f conftest
	    ]
	)
	MANTYPE="$sudo_cv_var_mantype"
    else
	MANTYPE=cat
	MANDIRTYPE=cat
	mansrcdir='$(srcdir)'
    fi
fi

dnl
dnl What kind of beastie are we being run on?
dnl Barf if config.cache was generated on another host.
dnl
if test -n "$sudo_cv_prev_host"; then
    if test "$sudo_cv_prev_host" != "$host"; then
	AC_MSG_ERROR([config.cache was created on a different host; remove it and re-run configure.])
    else
	AC_MSG_CHECKING(previous host type)
	AC_CACHE_VAL(sudo_cv_prev_host, sudo_cv_prev_host="$host")
	AC_MSG_RESULT([$sudo_cv_prev_host])
    fi
else
    # this will produce no output since there is no cached value
    AC_CACHE_VAL(sudo_cv_prev_host, sudo_cv_prev_host="$host")
fi

dnl
dnl We want to be able to differentiate between different rev's
dnl
if test -n "$host_os"; then
    OS=`echo $host_os | sed 's/[[0-9]].*//'`
    OSREV=`echo $host_os | sed 's/^[[^0-9\.]]*\([[0-9\.]]*\).*$/\1/'`
    OSMAJOR=`echo $OSREV | sed 's/\..*$//'`
else
    OS="unknown"
    OSREV=0
    OSMAJOR=0
fi

case "$host" in
    *-*-solaris2*)
		AC_DEFINE([PAM_SUN_CODEBASE])

		# LD_PRELOAD is space-delimited
		RTLD_PRELOAD_DELIM=" "

		# Solaris-specific initialization
		OS_INIT=os_init_solaris
		SUDO_OBJS="${SUDO_OBJS} solaris.o"

		# AFS support needs -lucb
		if test "$with_AFS" = "yes"; then
		    AFS_LIBS="-lc -lucb"
		fi
		: ${mansectsu='1m'}
		: ${mansectform='4'}
		test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
		AC_CHECK_FUNCS([priv_set], [PSMAN=1])
		;;
    *-*-aix*)
		AC_DEFINE([PAM_SUN_CODEBASE])

		# To get all prototypes (so we pass -Wall)
		AC_DEFINE([_LINUX_SOURCE_COMPAT])

		# For AIX we build in support for both LAM and PAM
		# and choose which to use based on auth_type in
		# /etc/security/login.cfg
		if test X"${with_pam}${with_aixauth}" = X""; then
		    AUTH_EXCL_DEF="AIX_AUTH PAM"
		fi

		# AIX analog of nsswitch.conf, enabled by default
		AC_ARG_WITH(netsvc, [AS_HELP_STRING([--with-netsvc[[=PATH]]], [path to netsvc.conf])],
		[case $with_netsvc in
		    no)		;;
		    yes)	with_netsvc="/etc/netsvc.conf"
				;;
		    *)		;;
		esac])
		if test -z "$with_nsswitch" -a -z "$with_netsvc"; then
		    with_netsvc="/etc/netsvc.conf"
		fi

		# LDR_PRELOAD is only supported in AIX 5.3 and later
		case "$OSREV" in
		    [[1-4]].*)	with_noexec=no;;
		    5.[[1-2]]*)	with_noexec=no;;
		    *)		RTLD_PRELOAD_VAR="LDR_PRELOAD";;
		esac

		# strnlen/strndup may be broken on AIX < 6 depending
		# on the libc version, use our own.
		if test $OSMAJOR -lt 6; then
		    ac_cv_func_strnlen=no
		fi

		# Remove timedir on boot, AIX does not have /var/run
		INIT_SCRIPT=aix.sh
		INIT_DIR=/etc/rc.d/init.d
		RC_LINK=/etc/rc.d/rc2.d/S90sudo

		# AIX-specific functions
		AC_CHECK_FUNCS([getuserattr setrlimit64])
		AC_CHECK_FUNCS([setauthdb],
		    [AC_CHECK_TYPES([authdb_t], [], [], [#include <usersec.h>])])

		COMMON_OBJS="${COMMON_OBJS} aix.lo"
		SUDO_APPEND_COMPAT_EXP(aix_prep_user_v1 aix_restoreauthdb_v1 aix_setauthdb_v1 aix_setauthdb_v2 aix_getauthregistry_v1)

		# These prototypes may be missing
		AC_CHECK_DECLS([usrinfo], [], [], [
#include <sys/types.h>
#include <uinfo.h>
		])
		AC_CHECK_DECLS([setauthdb], [], [], [
#include <sys/types.h>
#include <usersec.h>
		])
		;;
    *-*-hiuxmpp*)
		AC_DEFINE([PAM_SUN_CODEBASE])

		: ${mansectsu='1m'}
		: ${mansectform='4'}

		# HP-UX does not clear /var/run so we need to do it
		INIT_SCRIPT=hpux.sh
		INIT_DIR=/sbin/init.d
		RC_LINK=/sbin/rc2.d/S900sudo

		# HP-UX shared libs must be executable.
		# Load time is much greater if writable so use 0555.
		SHLIB_MODE=0555

		# HP-UX won't unlink a shared lib that is open
		INSTALL_BACKUP='~'

		AC_CHECK_FUNCS([pstat_getproc])
		;;
    *-*-hpux*)
		AC_DEFINE([PAM_SUN_CODEBASE])

		# AFS support needs -lBSD
		if test "$with_AFS" = "yes"; then
		    AFS_LIBS="-lc -lBSD"
		fi
		: ${mansectsu='1m'}
		: ${mansectform='4'}

		# HP-UX does not clear /var/run so we need to do it
		INIT_SCRIPT=hpux.sh
		INIT_DIR=/sbin/init.d
		RC_LINK=/sbin/rc2.d/S900sudo

		# HP-UX shared libs must be executable.
		# Load time is much greater if writable so use 0555.
		SHLIB_MODE=0555

		# HP-UX won't unlink a shared lib that is open
		INSTALL_BACKUP='~'

		# The HP bundled compiler cannot generate shared libs
		if test -z "$GCC"; then
		    AC_CACHE_CHECK([for HP bundled C compiler],
			[sudo_cv_var_hpccbundled],
			[if $CC -V 2>&1 | grep '^(Bundled)' >/dev/null 2>&1; then
			    sudo_cv_var_hpccbundled=yes
			else
			    sudo_cv_var_hpccbundled=no
			fi]
		    )
		    if test "$sudo_cv_var_hpccbundled" = "yes"; then
			AC_MSG_ERROR([The HP bundled C compiler is unable to build Sudo, you must use gcc or the HP ANSI C compiler instead.])
		    fi
		fi

		# Build PA-RISC1.1 objects for better portability
		case "$host_cpu" in
		    hppa[[2-9]]*)
			_CFLAGS="$CFLAGS"
			if test -n "$GCC"; then
			    portable_flag="-march=1.1"
			else
			    portable_flag="+DAportable"
			fi
			CFLAGS="$CFLAGS $portable_flag"
			AC_CACHE_CHECK([whether $CC understands $portable_flag],
			    [sudo_cv_var_daportable],
			    [AC_LINK_IFELSE(
				[AC_LANG_PROGRAM([[]], [[]])],
				    [sudo_cv_var_daportable=yes],
				    [sudo_cv_var_daportable=no]
				)
			    ]
			)
			if test X"$sudo_cv_var_daportable" != X"yes"; then
			    CFLAGS="$_CFLAGS"
			fi
			;;
		esac

		case "$host_os" in
			hpux10.*)
			    shadow_funcs="getprpwnam iscomsec"
			    shadow_libs="-lsec"
			    # HP-UX 10.20 libc has an incompatible getline
			    ac_cv_func_getline="no"
			    # HP-UX 10.x doesn't support LD_PRELOAD
			    with_noexec=no
			;;
			*)
			    shadow_funcs="getspnam iscomsec"
			    shadow_libs="-lsec"
			    test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
			;;
		esac
		AC_CHECK_FUNCS([pstat_getproc])
		;;
    *-dec-osf*)
		# ignore envariables wrt dynamic lib path
		AX_APPEND_FLAG([-Wl,-no_library_replacement], [SUDO_LDFLAGS])

		: ${CHECKSIA='true'}
		AC_MSG_CHECKING(whether to disable sia support on Digital UNIX)
		AC_ARG_ENABLE(sia,
		[AS_HELP_STRING([--disable-sia], [Disable SIA on Digital UNIX])],
		[ case "$enableval" in
		    yes)	AC_MSG_RESULT(no)
				CHECKSIA=true
				;;
		    no)		AC_MSG_RESULT(yes)
				CHECKSIA=false
				;;
		    *)		AC_MSG_RESULT(no)
				AC_MSG_WARN([Ignoring unknown argument to --enable-sia: $enableval])
				;;
		  esac
		], AC_MSG_RESULT(no))

		shadow_funcs="getprpwnam dispcrypt"
		# OSF/1 4.x and higher need -ldb too
		if test $OSMAJOR -lt 4; then
		    shadow_libs="-lsecurity -laud -lm"
		else
		    shadow_libs="-lsecurity -ldb -laud -lm"
		fi

		# use SIA by default, if we have it
		test "$CHECKSIA" = "true" && AUTH_EXCL_DEF="SIA"

		#
		# Some versions of Digital Unix ship with a broken
		# copy of prot.h, which we need for shadow passwords.
		# XXX - make should remove this as part of distclean
		#
		AC_MSG_CHECKING([for broken prot.h])
		AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <sys/security.h>
#include <prot.h>
		]], [[exit(0);]])], [AC_MSG_RESULT(no)], [AC_MSG_RESULT([yes, fixing locally])
		sed 's:<acl.h>:<sys/acl.h>:g' < /usr/include/prot.h > prot.h
		])
		# ":DEFAULT" must be appended to _RLD_LIST
		RTLD_PRELOAD_VAR="_RLD_LIST"
		RTLD_PRELOAD_DEFAULT="DEFAULT"
		: ${mansectsu='8'}
		: ${mansectform='4'}
		;;
    *-*-irix*)
		AC_DEFINE([_BSD_TYPES])
		if test -z "$NROFFPROG"; then
		    if test "$prefix" = "/usr/local" -a "$mandir" = '${datarootdir}/man'; then
			if test -d /usr/share/catman/local; then
			    mandir="/usr/share/catman/local"
			else
			    mandir="/usr/catman/local"
			fi
		    fi
		    # Compress cat pages with pack
		    MANCOMPRESS='pack'
		    MANCOMPRESSEXT='.z'
		else
		    if test "$prefix" = "/usr/local" -a "$mandir" = '${datarootdir}/man'; then
			if test -d "/usr/share/man/local"; then
			    mandir="/usr/share/man/local"
			else
			    mandir="/usr/man/local"
			fi
		    fi
		fi
		# IRIX <= 4 needs -lsun
		if test "$OSMAJOR" -le 4; then
		    AC_CHECK_LIB(sun, getpwnam, [LIBS="${LIBS} -lsun"])
		fi
		# ":DEFAULT" must be appended to _RLD_LIST
		RTLD_PRELOAD_VAR="_RLD_LIST"
		RTLD_PRELOAD_DEFAULT="DEFAULT"
		: ${mansectsu='1m'}
		: ${mansectform='4'}
		;;
    *-*-linux*|*-*-k*bsd*-gnu)
		shadow_funcs="getspnam"
		test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
		# Check for SECCOMP_SET_MODE_FILTER in linux/seccomp.h
		AC_CHECK_DECLS([SECCOMP_SET_MODE_FILTER], [], [], [
#include <sys/types.h>
#include <sys/prctl.h>
#include <asm/unistd.h>
#include <linux/seccomp.h>
#include <linux/filter.h>
		])
		;;
    *-*-gnu*)
		# lockf() is broken on the Hurd
		ac_cv_func_lockf=no
		;;
    *-*-riscos*)
		LIBS="${LIBS} -lsun -lbsd"
		AX_APPEND_FLAG([-I/usr/include], [CPPFLAGS])
		AX_APPEND_FLAG([-I/usr/include/bsd], [CPPFLAGS])
		AX_APPEND_FLAG([-D_MIPS], [CPPFLAGS])
		: ${mansectsu='1m'}
		: ${mansectform='4'}
		;;
    *-*-isc*)
		AX_APPEND_FLAG([-D_ISC], [CPPFLAGS])
		LIB_CRYPT=1
		SUDOERS_LIBS="${SUDOERS_LIBS} -lcrypt"

		shadow_funcs="getspnam"
		shadow_libs="-lsec"

		: ${mansectsu='1m'}
		: ${mansectform='4'}
		;;
    *-*-sco*|*-sco-*)
		shadow_funcs="getprpwnam"
		shadow_libs="-lprot -lx"
		: ${mansectsu='1m'}
		: ${mansectform='4'}
		;;
    m88k-motorola-sysv*)
		# motorolla's cc (a variant of gcc) does -O but not -O2
		CFLAGS=`echo $CFLAGS | sed 's/-O2/-O/g'`
		: ${mansectsu='1m'}
		: ${mansectform='4'}
		;;
    *-sequent-sysv*)
		shadow_funcs="getspnam"
		shadow_libs="-lsec"
		: ${mansectsu='1m'}
		: ${mansectform='4'}
		;;
    *-ncr-sysv4*|*-ncr-sysvr4*)
		AC_CHECK_LIB(c89, strcasecmp, [LIBS="${LIBS} -lc89"])
		: ${mansectsu='1m'}
		: ${mansectform='4'}
		;;
    *-ccur-sysv4*|*-ccur-sysvr4*)
		LIBS="${LIBS} -lgen"
		: ${mansectsu='1m'}
		: ${mansectform='4'}
		;;
    *-*-bsdi*)
		SKIP_SETREUID=yes
		# Check for newer BSD auth API
		if test -z "$with_bsdauth"; then
		    AC_CHECK_FUNCS([auth_challenge], [AUTH_EXCL_DEF="BSD_AUTH"])
		fi
		;;
    *-*-freebsd*)
		AC_DEFINE([_BSD_SOURCE])

		# FreeBSD has a real setreuid(2) starting with 2.1 and
		# backported to 2.0.5.  We just take 2.1 and above...
		case "$OSREV" in
		0.*|1.*|2.0*)
		    SKIP_SETREUID=yes
		    ;;
		esac
		if test "${with_skey-'no'}" = "yes"; then
		     SUDOERS_LIBS="${SUDOERS_LIBS} -lmd"
		fi
		CHECKSHADOW="false"
		test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
		: ${with_logincap='maybe'}

		# Examples go in share/examples/sudo
		if test X"$with_exampledir" = X""; then
		    exampledir='$(datarootdir)/examples/$(PACKAGE_TARNAME)'
		fi
		;;
    *-*-*openbsd*)
		AC_DEFINE([_BSD_SOURCE])

		# OpenBSD-specific initialization
		OS_INIT=os_init_openbsd
		SUDO_OBJS="${SUDO_OBJS} openbsd.o"

		# OpenBSD has a real setreuid(2) starting with 3.3 but
		# we will use setresuid(2) instead.
		SKIP_SETREUID=yes

		# OpenBSD >= 3.0 supports BSD auth
		if test -z "$with_bsdauth"; then
		    if test "$OSMAJOR" -ge 3; then
			AUTH_EXCL_DEF="BSD_AUTH"
		    fi
		fi
		: ${with_logincap='maybe'}

		# Newer OpenBSD only fills in pw_password for getpwnam_shadow()
		shadow_funcs="getpwnam_shadow"

		# Examples go in share/examples/sudo
		if test X"$with_exampledir" = X""; then
		    exampledir='$(datarootdir)/examples/$(PACKAGE_TARNAME)'
		fi
		;;
    *-*-*netbsd*)
		# NetBSD has a real setreuid(2) starting with 1.3.2
		case "$OSREV" in
		0.9*|1.[[012]]*|1.3|1.3.1)
		    SKIP_SETREUID=yes
		    ;;
		esac
		CHECKSHADOW="false"
		test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
		: ${with_logincap='maybe'}

		# Examples go in share/examples/sudo
		if test X"$with_exampledir" = X""; then
		    exampledir='$(datarootdir)/examples/$(PACKAGE_TARNAME)'
		fi
		;;
    *-*-dragonfly*)
		AC_DEFINE([_BSD_SOURCE])

		if test "${with_skey-'no'}" = "yes"; then
		     SUDOERS_LIBS="${SUDOERS_LIBS} -lmd"
		fi
		CHECKSHADOW="false"
		test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
		: ${with_logincap='yes'}

		# Examples go in share/examples/sudo
		if test X"$with_exampledir" = X""; then
		    exampledir='$(datarootdir)/examples/$(PACKAGE_TARNAME)'
		fi
		;;
    *-*-*bsd*)
		CHECKSHADOW="false"
		# Examples go in share/examples/sudo
		if test X"$with_exampledir" = X""; then
		    exampledir='$(datarootdir)/examples/$(PACKAGE_TARNAME)'
		fi
		;;
    *-*-darwin*)
		# Darwin has a real setreuid(2) starting with 9.0
		if test $OSMAJOR -lt 9; then
		    SKIP_SETREUID=yes
		fi
		CHECKSHADOW="false"
		test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
		: ${with_logincap='yes'}
		# Darwin has a broken poll()
		: ${enable_poll='no'}
		# Darwin 8 and above can interpose library symbols cleanly
		if test $OSMAJOR -ge 8; then
		    AC_DEFINE(HAVE___INTERPOSE)
		    dlyld_interpose=yes
		else
		    RTLD_PRELOAD_ENABLE_VAR="DYLD_FORCE_FLAT_NAMESPACE"
		fi
		RTLD_PRELOAD_VAR="DYLD_INSERT_LIBRARIES"

		# Undocumented API that dynamically allocates the groups.
		AC_CHECK_FUNCS([getgrouplist_2], [AC_CHECK_DECLS([getgrouplist_2])])

		# We need to force a flat namespace to make libc
		# symbol hooking work like it does on ELF.
		AX_CHECK_LINK_FLAG([-Wl,-force_flat_namespace], [AX_APPEND_FLAG([-Wl,-force_flat_namespace], [SUDO_LDFLAGS])])

		# Examples go in share/examples/sudo
		if test X"$with_exampledir" = X""; then
		    exampledir='$(datarootdir)/examples/$(PACKAGE_TARNAME)'
		fi
		;;
    *-*-nextstep*)
		# lockf() is broken on the NeXT
		ac_cv_func_lockf=no
		RTLD_PRELOAD_VAR="DYLD_INSERT_LIBRARIES"
		RTLD_PRELOAD_ENABLE_VAR="DYLD_FORCE_FLAT_NAMESPACE"
		;;
    *-*-*sysv4*)
		: ${mansectsu='1m'}
		: ${mansectform='4'}
		;;
    *-*-sysv*)
		: ${mansectsu='1m'}
		: ${mansectform='4'}
		;;
esac

dnl
dnl Library preloading to support NOEXEC
dnl
if test -n "$with_noexec"; then
    SUDO_DEFINE_UNQUOTED(RTLD_PRELOAD_VAR, "$RTLD_PRELOAD_VAR")
    SUDO_DEFINE_UNQUOTED(RTLD_PRELOAD_DELIM, "$RTLD_PRELOAD_DELIM")
    if test -n "$RTLD_PRELOAD_DEFAULT"; then
	SUDO_DEFINE_UNQUOTED(RTLD_PRELOAD_DEFAULT, "$RTLD_PRELOAD_DEFAULT")
    fi
    if test -n "$RTLD_PRELOAD_ENABLE_VAR"; then
	SUDO_DEFINE_UNQUOTED(RTLD_PRELOAD_ENABLE_VAR, "$RTLD_PRELOAD_ENABLE_VAR")
    fi
fi

dnl
dnl Check for mixing mutually exclusive and regular auth methods
dnl
AUTH_REG=${AUTH_REG# }
AUTH_EXCL=${AUTH_EXCL# }
if test -n "$AUTH_EXCL"; then
    if test -n "$AUTH_REG"; then
	AC_MSG_ERROR([Cannot mix mutually exclusive ($AUTH_EXCL) and regular ($AUTH_REG) authentication methods])
    fi
fi
dnl
dnl Only one of S/Key and OPIE may be specified
dnl
if test X"${with_skey}${with_opie}" = X"yesyes"; then
    AC_MSG_ERROR(["cannot use both S/Key and OPIE"])
fi

dnl
dnl Use BSD-style man sections by default
dnl
: ${mansectsu='8'}
: ${mansectform='5'}

dnl
dnl Add in any libpaths or libraries specified via configure
dnl
if test -n "$with_libpath"; then
    for i in ${with_libpath}; do
	SUDO_APPEND_LIBPATH(LDFLAGS, [$i])
    done
fi
if test -n "$with_libraries"; then
    for i in ${with_libraries}; do
	case $i in
	    -l*)	;;
	    *.a)	;;
	    *.o)	;;
	    *)	i="-l${i}";;
	esac
	LIBS="${LIBS} ${i}"
    done
fi

dnl
dnl C compiler checks (to be done after os checks)
dnl
AC_PROG_CC_STDC
AC_C_CONST
AC_C_INLINE
AC_C_VOLATILE
AC_MSG_CHECKING([for variadic macro support in cpp])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
AC_INCLUDES_DEFAULT
#if defined(__GNUC__) && __GNUC__ == 2
# define sudo_fprintf(fp, fmt...) fprintf((fp), (fmt))
#else
# define sudo_fprintf(fp, ...) fprintf((fp), __VA_ARGS__)
#endif
], [sudo_fprintf(stderr, "a %s", "test");])], [AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no])
 AC_DEFINE([NO_VARIADIC_MACROS], [1], [Define if your C preprocessor does not support variadic macros.])
 AC_MSG_WARN([Your C preprocessor doesn't support variadic macros, debugging support will be limited])
 SUDO_APPEND_COMPAT_EXP(sudo_debug_printf_nvm_v1)
])

dnl
dnl Program checks
dnl
AC_PROG_AWK
AC_PROG_YACC
AC_PATH_PROG([FLEX], [flex], [flex])
SUDO_PROG_MV
SUDO_PROG_BSHELL
if test -z "$with_sendmail"; then
    SUDO_PROG_SENDMAIL
fi
SUDO_PROG_VI
dnl
dnl Check for authpriv support in syslog
dnl
AC_MSG_CHECKING(which syslog facility sudo should log with)
if test X"$with_logfac" = X""; then
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <syslog.h>]], [[int i = LOG_AUTHPRIV; (void)i;]])], [logfac=authpriv])
fi
AC_DEFINE_UNQUOTED(LOGFAC, "$logfac", [The syslog facility sudo will use.])
AC_MSG_RESULT($logfac)
dnl
dnl Header file checks
dnl
AC_HEADER_DIRENT
AC_HEADER_TIME
AC_HEADER_STDBOOL
AC_HEADER_MAJOR
AC_CHECK_HEADERS_ONCE([netgroup.h paths.h spawn.h utmpx.h wordexp.h sys/sockio.h sys/bsdtypes.h sys/select.h sys/stropts.h sys/sysmacros.h])
AC_CHECK_HEADERS([endian.h] [sys/endian.h] [machine/endian.h], [break])
AC_CHECK_HEADERS([procfs.h] [sys/procfs.h], [AC_CHECK_MEMBERS(struct psinfo.pr_ttydev, [AC_CHECK_FUNCS([_ttyname_dev])], [], [AC_INCLUDES_DEFAULT
#ifdef HAVE_PROCFS_H
#include <procfs.h>
#endif
#ifdef HAVE_SYS_PROCFS_H
#include <sys/procfs.h>
#endif
])]
break)
#
# Check for large file support.
#
AC_SYS_LARGEFILE
#
# HP-UX may need to define _XOPEN_SOURCE_EXTENDED to expose MSG_WAITALL.
# Also, HP-UX 11.23 has a broken sys/types.h when large files support
# is enabled and _XOPEN_SOURCE_EXTENDED is not also defined.
# The following test will define _XOPEN_SOURCE_EXTENDED in either case.
#
case "$host_os" in
    hpux*)
	AC_CACHE_CHECK([whether sys/socket.h needs _XOPEN_SOURCE_EXTENDED for MSG_WAITALL], [sudo_cv_xopen_source_extended],
	[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
#	include <sys/socket.h>], [int a = MSG_WAITALL; return a;])],
	[sudo_cv_xopen_source_extended=no], [
	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#define _XOPEN_SOURCE_EXTENDED
	    AC_INCLUDES_DEFAULT
#	    include <sys/socket.h>
#	    include <net/if.h>], [int a = MSG_WAITALL; return a;])],
	    [sudo_cv_xopen_source_extended=yes],
	    [sudo_cv_xopen_source_extended=error])
	])])
	if test "$sudo_cv_xopen_source_extended" = "yes"; then
	    AC_DEFINE([_XOPEN_SOURCE_EXTENDED])
	fi
	;;
esac
AC_SYS_POSIX_TERMIOS
if test "$ac_cv_sys_posix_termios" != "yes"; then
    AC_MSG_ERROR([Must have POSIX termios to build sudo])
fi
SUDO_MAILDIR
if test ${with_logincap-'no'} != "no"; then
    AC_CHECK_HEADERS([login_cap.h], [LOGINCAP_USAGE='[[-c class]] '; LCMAN=1
	case "$OS" in
	    freebsd|netbsd)
		SUDO_LIBS="${SUDO_LIBS} -lutil"
		SUDOERS_LIBS="${SUDOERS_LIBS} -lutil"
		;;
	esac
    ])
fi
if test ${with_project-'no'} != "no"; then
    AC_CHECK_HEADER(project.h, [
	AC_CHECK_LIB(project, setproject, [
	    AC_DEFINE(HAVE_PROJECT_H)
	    SUDO_LIBS="${SUDO_LIBS} -lproject"
	])
    ], [])
fi
dnl
dnl typedef checks
dnl We need to define __STDC_WANT_LIB_EXT1__ for errno_t and rsize_t
dnl
AC_DEFINE([__STDC_WANT_LIB_EXT1__])
AC_TYPE_MODE_T
AC_TYPE_UID_T
AC_CHECK_TYPE([clockid_t], [], [AC_DEFINE(clockid_t, int)], [#include <sys/types.h>
#include <time.h>])
AC_CHECK_TYPE([sig_atomic_t], [], [AC_DEFINE(sig_atomic_t, int)], [#include <sys/types.h>
#include <signal.h>])
AC_CHECK_TYPES([struct in6_addr], [], [], [#include <sys/types.h>
#include <netinet/in.h>])
AC_TYPE_LONG_LONG_INT
if test X"$ac_cv_type_long_long_int" != X"yes"; then
    AC_MSG_ERROR(["C compiler does not appear to support the long long int type"])
fi
AC_CHECK_TYPE(intmax_t, long long)
AC_CHECK_TYPE(uintmax_t, unsigned long long)
AC_CHECK_TYPE(uint8_t, unsigned char)
AC_CHECK_TYPE(uint32_t, unsigned int)
AC_CHECK_TYPE(uint64_t, unsigned long long)
AC_CHECK_TYPE(socklen_t, [], [AC_DEFINE(socklen_t, unsigned int)], [
AC_INCLUDES_DEFAULT
#include <sys/socket.h>])
AC_CHECK_TYPE(rsize_t, size_t)
AC_CHECK_TYPE(errno_t, int)
SUDO_UID_T_LEN
SUDO_SOCK_SA_LEN
SUDO_SOCK_SIN_LEN
AC_CHECK_SIZEOF([id_t])
AC_CHECK_SIZEOF([long long])
AC_CHECK_SIZEOF([time_t])
dnl
dnl Check for utmp/utmpx struct members.
dnl We need to have already defined _GNU_SOURCE on glibc which only has
dnl __e_termination visible when _GNU_SOURCE is *not* defined.
dnl
if test $ac_cv_header_utmpx_h = "yes"; then
    AC_CHECK_MEMBERS([struct utmpx.ut_id, struct utmpx.ut_pid, struct utmpx.ut_tv, struct utmpx.ut_type], [], [], [
#	include <sys/types.h>
#	include <utmpx.h>
    ])
    dnl
    dnl Check for ut_exit.__e_termination first, then ut_exit.e_termination
    dnl
    AC_CHECK_MEMBERS([struct utmpx.ut_exit.__e_termination], [AC_DEFINE(HAVE_STRUCT_UTMPX_UT_EXIT)], [
	AC_CHECK_MEMBERS([struct utmpx.ut_exit.e_termination], [AC_DEFINE(HAVE_STRUCT_UTMPX_UT_EXIT)], [], [
#	    include <sys/types.h>
#	    include <utmpx.h>
	])
    ], [
#	include <sys/types.h>
#	include <utmpx.h>
    ])
else
    AC_CHECK_MEMBERS([struct utmp.ut_id, struct utmp.ut_pid, struct utmp.ut_tv, struct utmp.ut_type, struct utmp.ut_user], [], [], [
#	include <sys/types.h>
#	include <utmp.h>
    ])
    dnl
    dnl Check for ut_exit.__e_termination first, then ut_exit.e_termination
    dnl
    AC_CHECK_MEMBERS([struct utmp.ut_exit.__e_termination], [AC_DEFINE(HAVE_STRUCT_UTMP_UT_EXIT)], [
	AC_CHECK_MEMBERS([struct utmp.ut_exit.e_termination], [AC_DEFINE(HAVE_STRUCT_UTMP_UT_EXIT)], [], [
#	    include <sys/types.h>
#	    include <utmp.h>
	])
    ], [
#	include <sys/types.h>
#	include <utmp.h>
    ])
fi

dnl
dnl Function checks
dnl
AC_FUNC_GETGROUPS
AC_CHECK_FUNCS_ONCE([fexecve killpg nl_langinfo pread pwrite openat faccessat wordexp])
case "$host_os" in
    hpux*)
	if test X"$ac_cv_func_pread" = X"yes"; then
	    O_CPPFLAGS="$CPPFLAGS"
	    CPPFLAGS="$CPPFLAGS -D_LARGEFILE64_SOURCE"
	    AC_CHECK_FUNCS([pread64 pwrite64], [
		AC_DEFINE([_LARGEFILE64_SOURCE], [1], [Define to 1 to enable 64-bit versions of standard C functions on 32-bit systems.])
	    ])
	    CPPFLAGS="$O_CPPFLAGS"
	fi
	;;
esac
AC_CHECK_FUNCS([getgrouplist], [], [
    case "$host_os" in
    aix*)
	AC_CHECK_FUNCS([getgrset])
	;;
    *)
	AC_CHECK_FUNC([nss_search], [
	    AC_CHECK_FUNC([_nss_XbyY_buf_alloc], [
		# Solaris
		AC_CHECK_FUNC([_nss_initf_group], [
		    AC_CHECK_HEADERS([nss_dbdefs.h])
		    AC_DEFINE([HAVE_NSS_SEARCH])
		    AC_DEFINE([HAVE__NSS_XBYY_BUF_ALLOC])
		    AC_DEFINE([HAVE__NSS_INITF_GROUP])
		], [
		    AC_CHECK_HEADERS([nss_dbdefs.h], [
			# Older Solaris does not export _nss_initf_group
			# but we can use our own.
			AC_DEFINE([HAVE_NSS_SEARCH])
			AC_DEFINE([HAVE__NSS_XBYY_BUF_ALLOC])
		    ])
		])
	    ], [
		# HP-UX
		AC_CHECK_FUNC([__nss_XbyY_buf_alloc], [
		    AC_CHECK_FUNC([__nss_initf_group], [
			AC_CHECK_HEADERS([nss_dbdefs.h])
			AC_DEFINE([HAVE_NSS_SEARCH])
			AC_DEFINE([HAVE___NSS_XBYY_BUF_ALLOC])
			AC_DEFINE([HAVE___NSS_INITF_GROUP])
		    ])
		])
	    ])
	])
	;;
    esac
    AC_LIBOBJ(getgrouplist)
    SUDO_APPEND_COMPAT_EXP(sudo_getgrouplist)
])
AC_CHECK_FUNCS([getline], [], [
    AC_LIBOBJ(getline)
    SUDO_APPEND_COMPAT_EXP(sudo_getline)
    AC_CHECK_FUNCS([fgetln])
])
AC_CHECK_FUNCS([reallocarray], [], [
    AC_LIBOBJ(reallocarray)
    SUDO_APPEND_COMPAT_EXP(sudo_reallocarray)
])

utmp_style=LEGACY
AC_CHECK_FUNCS([getutxid getutid], [utmp_style=POSIX; break])
if test "$utmp_style" = "LEGACY"; then
    AC_CHECK_FUNCS([getttyent ttyslot], [break])
    AC_CHECK_FUNCS([fseeko])
fi

AC_CHECK_FUNCS([sysctl], [AC_CHECK_MEMBERS([struct kinfo_proc.ki_tdev], [],
    [
	AC_CHECK_MEMBERS([struct kinfo_proc2.p_tdev], [], [
	    AC_CHECK_MEMBERS([struct kinfo_proc.p_tdev], [], [
		AC_CHECK_MEMBERS([struct kinfo_proc.kp_eproc.e_tdev], [], [], [
#		    include <sys/param.h>
#		    include <sys/sysctl.h>
		])
	    ], [
#		include <sys/param.h>
#		include <sys/sysctl.h>
	    ])
	],
	[
#	    include <sys/param.h>
#	    include <sys/sysctl.h>
	])
    ],
    [
#	include <sys/param.h>
#	include <sys/sysctl.h>
#	include <sys/user.h>
    ])
])

AC_CHECK_FUNCS([openpty], [AC_CHECK_HEADERS([libutil.h util.h pty.h], [break])], [
    AC_CHECK_LIB(util, openpty, [
	AC_CHECK_HEADERS([libutil.h util.h pty.h], [break])
	case "$SUDO_LIBS" in
	    *-lutil*) ;;
	    *) SUDO_LIBS="${SUDO_LIBS} -lutil";;
	esac
	AC_DEFINE(HAVE_OPENPTY)
    ], [
	AC_CHECK_FUNCS([_getpty], [], [
	    AC_CHECK_FUNCS([grantpt], [
		AC_CHECK_FUNCS([posix_openpt])
	    ], [
		AC_CHECK_FUNCS([revoke])
	    ])
	])
    ])
])
AC_CHECK_FUNCS([unsetenv], [SUDO_FUNC_UNSETENV_VOID], [])
SUDO_FUNC_PUTENV_CONST
if test -z "$SKIP_SETRESUID"; then
    AC_CHECK_FUNCS([setresuid], [
	SKIP_SETREUID=yes
	AC_CHECK_DECLS([setresuid])
	AC_CHECK_FUNCS([getresuid], [AC_CHECK_DECLS([getresuid])])
    ])
fi
if test -z "$SKIP_SETREUID"; then
    AC_CHECK_FUNCS([setreuid])
fi
AC_CHECK_FUNCS_ONCE([seteuid])
if test X"$with_interfaces" != X"no"; then
    AC_CHECK_FUNCS([getifaddrs], [AC_CHECK_FUNCS([freeifaddrs])])
fi
AC_CHECK_FUNCS([lockf], [break])
AC_CHECK_FUNCS([innetgr], [
    AC_CHECK_DECLS([innetgr], [], [], [
AC_INCLUDES_DEFAULT
#ifdef HAVE_NETGROUP_H
# include <netgroup.h>
#else
# include <netdb.h>
#endif /* HAVE_NETGROUP_H */
])], [
    AC_CHECK_FUNCS([_innetgr], [
	AC_CHECK_DECLS([_innetgr], [], [], [
AC_INCLUDES_DEFAULT
#ifdef HAVE_NETGROUP_H
# include <netgroup.h>
#else
# include <netdb.h>
#endif /* HAVE_NETGROUP_H */
	])
    ])
])
AC_CHECK_FUNCS([getdomainname], [
    AC_CHECK_DECLS([getdomainname], [], [], [
AC_INCLUDES_DEFAULT
#include <netdb.h>
    ])
], [
    AC_CHECK_FUNCS([sysinfo], [AC_CHECK_HEADERS([sys/systeminfo.h])])
])
AC_CHECK_FUNCS([utimensat], [], [
    AC_LIBOBJ(utimens)
    SUDO_APPEND_COMPAT_EXP(sudo_utimensat)
    AC_CHECK_FUNCS([utimes])
])
AC_CHECK_FUNCS([futimens], [], [
    AC_LIBOBJ(utimens)
    SUDO_APPEND_COMPAT_EXP(sudo_futimens)
    AC_CHECK_FUNCS([futimes futimesat futime], [break])
])
SUDO_FUNC_FNMATCH([AC_DEFINE(HAVE_FNMATCH)], [
    AC_LIBOBJ(fnmatch)
    SUDO_APPEND_COMPAT_EXP(sudo_fnmatch)
    COMPAT_TEST_PROGS="${COMPAT_TEST_PROGS}${COMPAT_TEST_PROGS+ }fnm_test"
])
SUDO_FUNC_ISBLANK
AC_CHECK_FUNCS([glob], [], [
    AC_LIBOBJ(glob)
    SUDO_APPEND_COMPAT_EXP(sudo_glob sudo_globfree)
])
AC_CHECK_FUNCS([memrchr], [], [
    AC_LIBOBJ(memrchr)
    SUDO_APPEND_COMPAT_EXP(sudo_memrchr)
])
AC_CHECK_FUNCS([memset_s], [], [
    AC_LIBOBJ(memset_s)
    SUDO_APPEND_COMPAT_EXP(sudo_memset_s)
])
AC_CHECK_FUNCS(nanosleep, [], [
    # On Solaris, nanosleep is in librt
    AC_CHECK_LIB(rt, nanosleep, [
	AC_DEFINE(HAVE_NANOSLEEP)
	LIBRT="-lrt"
    ], [
	AC_LIBOBJ(nanosleep)
	SUDO_APPEND_COMPAT_EXP(sudo_nanosleep)
    ])
])
AC_CHECK_FUNCS([pipe2], [], [
    AC_LIBOBJ(pipe2)
    SUDO_APPEND_COMPAT_EXP(sudo_pipe2)
])
AC_CHECK_FUNCS([pw_dup], [], [
    AC_LIBOBJ(pw_dup)
    SUDO_APPEND_COMPAT_EXP(sudo_pw_dup)
])
AC_CHECK_FUNCS([strlcpy], [], [
    AC_LIBOBJ(strlcpy)
    SUDO_APPEND_COMPAT_EXP(sudo_strlcpy)
])
AC_CHECK_FUNCS([strlcat], [], [
    AC_LIBOBJ(strlcat)
    SUDO_APPEND_COMPAT_EXP(sudo_strlcat)
])
AC_CHECK_FUNC([strnlen], [AC_FUNC_STRNLEN], [AC_LIBOBJ(strnlen)])
if test X"$ac_cv_func_strnlen_working" = X"yes"; then
    AC_DEFINE(HAVE_STRNLEN)
    AC_CHECK_FUNCS([strndup], [], [
	AC_LIBOBJ(strndup)
	SUDO_APPEND_COMPAT_EXP(sudo_strndup)
    ])
else
    # Broken or missing strnlen, use our own.
    SUDO_APPEND_COMPAT_EXP(sudo_strnlen)
    # Avoid libc strndup() since it is usually implemented using strnlen()
    AC_LIBOBJ(strndup)
    SUDO_APPEND_COMPAT_EXP(sudo_strndup)
fi
AC_CHECK_FUNCS([clock_gettime], [], [
    # On Solaris, clock_gettime is in librt
    AC_CHECK_LIB(rt, clock_gettime, [
	AC_DEFINE(HAVE_CLOCK_GETTIME)
	LIBRT="-lrt"
    ])
])
AC_CHECK_FUNCS([getopt_long], [], [
    AC_LIBOBJ(getopt_long)
    SUDO_APPEND_COMPAT_EXP(sudo_getopt_long sudo_getopt_long_only)
    AC_MSG_CHECKING([for optreset])
    AC_CACHE_VAL(sudo_cv_optreset, [
    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[extern int optreset; optreset = 1; return optreset;]])], [sudo_cv_optreset=yes], [sudo_cv_optreset=no])])
    if test "$sudo_cv_optreset" = "yes"; then
	AC_DEFINE(HAVE_OPTRESET)
    fi
    AC_MSG_RESULT($sudo_cv_optreset)
])
AC_CHECK_FUNCS([closefrom], [], [AC_LIBOBJ(closefrom)
    SUDO_APPEND_COMPAT_EXP(closefrom_fallback sudo_closefrom)
    AC_CHECK_DECL(F_CLOSEM, AC_DEFINE(HAVE_FCNTL_CLOSEM), [], [
#	include <limits.h>
#	include <fcntl.h> ])
])
AC_CHECK_FUNCS([mkstemps mkdtemp], [], [break])
if test X"$ac_cv_func_mkstemps$ac_cv_func_mkdtemp" != X"yesyes"; then
    AC_CHECK_FUNCS([arc4random random lrand48], [break])
    if test X"$ac_cv_func_arc4random" != X"yes"; then
	AC_CHECK_FUNCS([getentropy])
    fi
    AC_LIBOBJ(mktemp)
    # If either mkdtemp() or mkstemps() is missing, replace both.
    SUDO_APPEND_COMPAT_EXP(sudo_mkdtemp sudo_mkstemps)
    COMPAT_TEST_PROGS="${COMPAT_TEST_PROGS}${COMPAT_TEST_PROGS+ }mktemp_test"
fi
AX_FUNC_SNPRINTF
if test X"$ac_cv_have_working_snprintf$ac_cv_have_working_vsnprintf" = X"yesyes"; then
    # System has a C99-compliant v?snprintf(), check for v?asprintf()
    AC_CHECK_FUNCS([asprintf], [], [
	AC_LIBOBJ(snprintf)
	SUDO_APPEND_COMPAT_EXP(sudo_asprintf)
    ])
    AC_CHECK_FUNCS([vasprintf], [], [
	AC_LIBOBJ(snprintf)
	SUDO_APPEND_COMPAT_EXP(sudo_vasprintf)
    ])
else
    # Missing or non-compliant v?snprintf(), assume missing/bad v?asprintf()
    SUDO_APPEND_COMPAT_EXP(sudo_snprintf sudo_vsnprintf sudo_asprintf sudo_vasprintf)
fi
# We wrap OpenBSD's strtonum() to get translatable error strings.
AC_CHECK_FUNCS([strtonum])
AC_LIBOBJ(strtonum)
SUDO_APPEND_COMPAT_EXP(sudo_strtonum)
AC_CHECK_MEMBERS([struct tm.tm_gmtoff], [], [], [
AC_INCLUDES_DEFAULT
#include <errno.h>
])
AC_CHECK_MEMBER([struct stat.st_mtim], [AC_DEFINE(HAVE_ST_MTIM)]
    [AC_CHECK_MEMBER([struct stat.st_mtim.st__tim], AC_DEFINE(HAVE_ST__TIM))],
    [AC_CHECK_MEMBER([struct stat.st_mtimespec], AC_DEFINE([HAVE_ST_MTIMESPEC]))])
# Look for sha2 functions if not using openssl
if test "$FILEDIGEST" = "filedigest.lo"; then
    FOUND_SHA2=no
    AC_CHECK_HEADER([sha2.h], [
	FOUND_SHA2=yes
	AC_CHECK_FUNCS([SHA224Update], [SUDO_FUNC_SHA2_VOID_PTR], [
	    # On some systems, SHA224Update is in libmd
	    AC_CHECK_LIB(md, SHA224Update, [
		AC_DEFINE(HAVE_SHA224UPDATE)
		SUDO_FUNC_SHA2_VOID_PTR
		LIBMD="-lmd"
	    ], [
		# Does not have SHA224Update
		FOUND_SHA2=no
	    ])
	])
    ])
    if test X"$FOUND_SHA2" = X"no"; then
	AC_LIBOBJ(sha2)
	SUDO_APPEND_COMPAT_EXP(sudo_SHA224Final sudo_SHA224Init sudo_SHA224Pad sudo_SHA224Transform sudo_SHA224Update sudo_SHA256Final sudo_SHA256Init sudo_SHA256Pad sudo_SHA256Transform sudo_SHA256Update sudo_SHA384Final sudo_SHA384Init sudo_SHA384Pad sudo_SHA384Transform sudo_SHA384Update sudo_SHA512Final sudo_SHA512Init sudo_SHA512Pad sudo_SHA512Transform sudo_SHA512Update)
    fi
fi
AC_CHECK_FUNCS([vsyslog], [], [
    AC_LIBOBJ(vsyslog)
    SUDO_APPEND_COMPAT_EXP(sudo_vsyslog)
    COMPAT_TEST_PROGS="${COMPAT_TEST_PROGS}${COMPAT_TEST_PROGS+ }vsyslog_test"
])
dnl
dnl Function checks for sudo_noexec
dnl
if test X"$with_noexec" != X"no"; then
    # Check for non-standard exec functions
    AC_CHECK_FUNCS([exect execvP execvpe])
    # Check for posix_spawn, and posix_spawnp
    if test X"$ac_cv_header_spawn_h" = X"yes"; then
	AC_CHECK_FUNCS([posix_spawn posix_spawnp])
    fi
fi

dnl
dnl Check for the dirfd function/macro.  If not found, look for dd_fd in DIR.
dnl
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <$ac_header_dirent>]], [[DIR *d; (void)dirfd(d);]])], [AC_DEFINE(HAVE_DIRFD)], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <$ac_header_dirent>]], [[DIR d; memset(&d, 0, sizeof(d)); return(d.dd_fd);]])], [AC_DEFINE(HAVE_DD_FD)], [])])
AC_CHECK_MEMBERS([struct dirent.d_type, struct dirent.d_namlen], [], [], [
AC_INCLUDES_DEFAULT
#include <$ac_header_dirent>
])
dnl
dnl If socket(2) not in libc, check -lsocket and -linet
dnl May need to link with *both* -lnsl and -lsocket due to unresolved symbols
dnl
OLIBS="$LIBS"
LIBS="${LIBS} ${NET_LIBS}"
AC_CHECK_FUNC([socket], [], [
    for libs in "-lsocket" "-linet" "-lsocket -lnsl"; do
	_libs=
	for lib in $libs; do
	    case "$NET_LIBS" in
		*"$lib"*)   ;;
		*)	    _libs="$_libs $lib";;
	    esac
	done
	libs="${_libs# }"
	test -z "$libs" && continue
	lib="`echo \"$libs\"|sed -e 's/^-l//' -e 's/ .*$//'`"
	extralibs="`echo \"$libs\"|sed 's/^-l[[^ ]]*//'`"
	SUDO_CHECK_LIB($lib, socket, [NET_LIBS="${NET_LIBS} $libs"; break], [], [$extralibs])
    done
])
LIBS="$OLIBS"
dnl
dnl If inet_pton(3) not in libc, check -lnsl and -linet
dnl May need to link with *both* -lnsl and -lsocket due to unresolved symbols
dnl Some systems may have inet_pton() in libresolv.
dnl
OLIBS="$LIBS"
LIBS="${LIBS} ${NET_LIBS}"
found=false
INET_PTON_LIBS=
AC_CHECK_FUNC([inet_pton], [
    found=true
    AC_DEFINE(HAVE_INET_PTON)
], [
    for libs in "-lsocket" "-linet" "-lsocket -lnsl" "-lresolv"; do
	_libs=
	for lib in $libs; do
	    case "$NET_LIBS" in
		*"$lib"*)   ;;
		*)		_libs="$_libs $lib";;
	    esac
	done
	libs="${_libs# }"
	test -z "$libs" && continue
	lib="`echo \"$libs\"|sed -e 's/^-l//' -e 's/ .*$//'`"
	extralibs="`echo \"$libs\"|sed 's/^-l[[^ ]]*//'`"
	SUDO_CHECK_LIB($lib, inet_pton, [
	    found=true
	    AC_DEFINE(HAVE_INET_PTON)
	    NET_LIBS="${NET_LIBS} $libs"
	    INET_PTON_LIBS="$libs"
	    case "$libs" in
		*-lresolv*)
		    AC_DEFINE(NEED_RESOLV_H)
		    ;;
	    esac
	    break
	], [], [$extralibs])
    done
])
LIBS="$OLIBS"
if test X"$found" != X"true"; then
    AC_LIBOBJ(inet_pton)
    SUDO_APPEND_COMPAT_EXP(sudo_inet_pton)
fi
dnl
dnl If inet_ntop(3) not in libc, check -lnsl and -linet
dnl May need to link with *both* -lnsl and -lsocket due to unresolved symbols
dnl Some systems may have inet_ntop() in libresolv.
dnl
OLIBS="$LIBS"
LIBS="${LIBS} ${NET_LIBS}"
found=false
AC_CHECK_FUNC([inet_ntop], [
    found=true
    AC_DEFINE(HAVE_INET_NTOP)
], [
    for libs in "-lsocket" "-linet" "-lsocket -lnsl" "-lresolv"; do
	_libs=
	for lib in $libs; do
	    case "$NET_LIBS" in
		*"$lib"*)   ;;
		*)		_libs="$_libs $lib";;
	    esac
	done
	libs="${_libs# }"
	test -z "$libs" && continue
	lib="`echo \"$libs\"|sed -e 's/^-l//' -e 's/ .*$//'`"
	extralibs="`echo \"$libs\"|sed 's/^-l[[^ ]]*//'`"
	SUDO_CHECK_LIB($lib, inet_ntop, [
	    found=true
	    AC_DEFINE(HAVE_INET_NTOP)
	    NET_LIBS="${NET_LIBS} $libs"
	    break
	], [], [$extralibs])
    done
])
LIBS="$OLIBS"
if test X"$found" != X"true"; then
    AC_LIBOBJ(inet_ntop)
    SUDO_APPEND_COMPAT_EXP(sudo_inet_ntop)
fi
dnl
dnl If syslog(3) not in libc, check -lsocket, -lnsl and -linet
dnl
OLIBS="$LIBS"
LIBS="${LIBS} ${NET_LIBS}"
AC_CHECK_FUNC([syslog], [], [
    for libs in "-lsocket" "-linet" "-lsocket -lnsl"; do
	_libs=
	for lib in $libs; do
	    case "$NET_LIBS" in
		*"$lib"*)   ;;
		*)	    _libs="$_libs $lib";;
	    esac
	done
	libs="${_libs# }"
	test -z "$libs" && continue
	lib="`echo \"$libs\"|sed -e 's/^-l//' -e 's/ .*$//'`"
	extralibs="`echo \"$libs\"|sed 's/^-l[[^ ]]*//'`"
	SUDO_CHECK_LIB($lib, syslog, [NET_LIBS="${NET_LIBS} $libs"; break], [], [$extralibs])
    done
])
LIBS="$OLIBS"
#
# Check for getaddrinfo and add any required libs to NET_LIBS.
# If it was added to LIBOBJS we need to export the symbols.
#
OLIBS="$LIBS"
LIBS="${LIBS} ${NET_LIBS}"
AX_FUNC_GETADDRINFO
case " $LIBOBJS " in
    *" getaddrinfo.$ac_objext "* )
	SUDO_APPEND_COMPAT_EXP(sudo_getaddrinfo sudo_freeaddrinfo sudo_gai_strerror)
	# We need libsudo_util to pull in dependent libraries for
	# inet_pton(), gethostbyname(), and getservbyname()
	if test -n "${INET_PTON_LIBS}"; then
	    LT_DEP_LIBS="${LT_DEP_LIBS}${LT_DEP_LIBS+ }${INET_PTON_LIBS}"
	    LIBS="${LIBS}${LIBS+ }${INET_PTON_LIBS}"
	fi
	AC_CHECK_FUNC([gethostbyname], [], [
	    for libs in "-lsocket" "-linet" "-lsocket -lnsl"; do
		_libs=
		for lib in $libs; do
		    case "$LT_DEP_LIBS" in
			*"$lib"*)   ;;
			*)	    _libs="$_libs $lib";;
		    esac
		done
		libs="${_libs# }"
		test -z "$libs" && continue
		lib="`echo \"$libs\"|sed -e 's/^-l//' -e 's/ .*$//'`"
		extralibs="`echo \"$libs\"|sed 's/^-l[[^ ]]*//'`"
		SUDO_CHECK_LIB($lib, gethostbyname, [LT_DEP_LIBS="${LT_DEP_LIBS} $libs"; break], [], [$extralibs])
	    done
	])
	;;
    *)
	for lib in $LIBS; do
	    case "$NET_LIBS" in
		*"$lib"*) ;;
		*) NET_LIBS="${NET_LIBS} $lib";;
	    esac
	done
	;;
esac
LIBS="$OLIBS"

dnl
dnl Check for getprogname() or __progname
dnl
AC_CHECK_FUNCS([getprogname], [AC_CHECK_FUNCS([setprogname])], [
    AC_MSG_CHECKING([for __progname])
    AC_CACHE_VAL(sudo_cv___progname, [
    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[extern char *__progname; (void)puts(__progname);]])], [sudo_cv___progname=yes], [sudo_cv___progname=no])])
    if test "$sudo_cv___progname" = "yes"; then
	AC_DEFINE(HAVE___PROGNAME)
    fi
    AC_MSG_RESULT($sudo_cv___progname)
    SUDO_APPEND_COMPAT_EXP(sudo_getprogname)
])
dnl
dnl Check for __func__ or __FUNCTION__
dnl
AC_MSG_CHECKING([for __func__])
AC_CACHE_VAL(sudo_cv___func__, [
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[(void)puts(__func__);]])], [sudo_cv___func__=yes], [sudo_cv___func__=no])])
AC_MSG_RESULT($sudo_cv___func__)
if test "$sudo_cv___func__" = "yes"; then
    AC_DEFINE(HAVE___FUNC__)
elif test -n "$GCC"; then
    AC_MSG_CHECKING([for __FUNCTION__])
    AC_CACHE_VAL(sudo_cv___FUNCTION__, [
    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[(void)puts(__FUNCTION__);]])], [sudo_cv___FUNCTION__=yes], [sudo_cv___FUNCTION__=no])])
    AC_MSG_RESULT($sudo_cv___FUNCTION__)
    if test "$sudo_cv___FUNCTION__" = "yes"; then
	AC_DEFINE(HAVE___FUNC__)
	AC_DEFINE(__func__, __FUNCTION__, [Define to __FUNCTION__ if your compiler supports __FUNCTION__ but not __func__])
    fi
fi

# gettext() and friends may be located in libc (Linux and Solaris)
# or in libintl.  However, it is possible to have libintl installed
# even when gettext() is present in libc.  In the case of GNU libintl,
# gettext() will be defined to gettext_libintl in libintl.h.
# Since gcc prefers /usr/local/include to /usr/include, we need to
# make sure we use the gettext() that matches the include file.
if test "$enable_nls" != "no"; then
    if test "$enable_nls" != "yes"; then
	AX_APPEND_FLAG([-I${enable_nls}/include], [CPPFLAGS])
	SUDO_APPEND_LIBPATH(LDFLAGS, [$enable_nls/lib])
    fi
    OLIBS="$LIBS"
    for l in "libc" "-lintl" "-lintl -liconv"; do
	if test "$l" = "libc"; then
	    # If user specified a dir for libintl ignore libc
	    if test "$enable_nls" != "yes"; then
		continue
	    fi
	    gettext_name=sudo_cv_gettext
	    AC_MSG_CHECKING([for gettext])
	else
	    LIBS="$OLIBS $l"
	    gettext_name=sudo_cv_gettext"`echo $l|sed -e 's/ //g' -e 's/-/_/g'`"
	    AC_MSG_CHECKING([for gettext in $l])
	fi
	AC_CACHE_VAL($gettext_name, [
		AC_LINK_IFELSE(
		    [
			AC_LANG_PROGRAM([[#include <libintl.h>]], [(void)gettext((char *)0);])
		    ], [eval $gettext_name=yes], [eval $gettext_name=no]
		)
	])
	eval gettext_result="\$$gettext_name"
	AC_MSG_RESULT($gettext_result)
	if test "$gettext_result" = "yes"; then
	    AC_CHECK_FUNCS([ngettext])
	    break
	fi
    done
    LIBS="$OLIBS"

    if test "$sudo_cv_gettext" = "yes"; then
	SUDO_NLS=enabled
	# For Solaris we need links from lang to lang.UTF-8 in localedir
	case "$host_os" in
	    solaris2*) LOCALEDIR_SUFFIX=".UTF-8";;
	esac
    elif test "$sudo_cv_gettext_lintl" = "yes"; then
	SUDO_NLS=enabled
	LIBINTL="-lintl"
    elif test "$sudo_cv_gettext_lintl_liconv" = "yes"; then
	SUDO_NLS=enabled
	LIBINTL="-lintl -liconv"
    fi
    if test X"$SUDO_NLS" = X"enabled"; then
	AC_DEFINE(HAVE_LIBINTL_H)
	SUDO_APPEND_COMPAT_EXP(sudo_warn_gettext_v1)
    fi
fi

dnl
dnl Deferred zlib option processing.
dnl By default we use the system zlib if it is present.
dnl If a directory was specified for zlib (or we are use sudo's version),
dnl prepend the include dir to make sure we get the right zlib header.
dnl
case "$enable_zlib" in
    yes)
	AC_CHECK_LIB(z, gzdopen, [
	    AC_CHECK_HEADERS([zlib.h], [ZLIB="-lz"], [enable_zlib=builtin])
	])
	;;
    no)
	;;
    system)
	AC_DEFINE(HAVE_ZLIB_H)
	ZLIB="-lz"
	;;
    static|shared|builtin)
	# handled below
	;;
    *)
	AC_DEFINE(HAVE_ZLIB_H)
	AX_APPEND_FLAG([-I${enable_zlib}/include], [CPPFLAGS])
	SUDO_APPEND_LIBPATH(ZLIB, [$enable_zlib/lib])
	ZLIB="${ZLIB} -lz"
	;;
esac
case "$enable_zlib" in
    builtin|static|dynamic)
	AC_DEFINE(HAVE_ZLIB_H)
	# XXX - can't use AX_APPEND_FLAG due to use of $(top_foo) and quoting
	CPPFLAGS='-I$(top_builddir)/lib/zlib -I$(top_srcdir)/lib/zlib '"${CPPFLAGS}"
	ZLIB="${ZLIB}"' $(top_builddir)/lib/zlib/libsudo_z.la'
	ZLIB_SRC=lib/zlib
	AC_CONFIG_HEADER([lib/zlib/zconf.h])
	AC_CONFIG_FILES([lib/zlib/Makefile])
	if test X"$enable_shared" = X"no" -o "$enable_zlib" = "static"; then
	    if test "$enable_zlib" = "shared"; then
		AC_MSG_ERROR(["Unable to build shared libraries on this system"])
	    fi
	    # Build as convenience library
	    ZLIB_LDFLAGS=-no-install
	fi
	;;
esac

dnl
dnl Check for errno declaration in errno.h
dnl
AC_CHECK_DECLS([errno], [], [], [
AC_INCLUDES_DEFAULT
#include <errno.h>
])

dnl
dnl Check for h_errno declaration in netdb.h
dnl
AC_CHECK_DECLS([h_errno], [], [], [
AC_INCLUDES_DEFAULT
#include <netdb.h>
])

dnl
dnl Check for incomplete limits.h and missing SIZE_MAX.
dnl
AC_CHECK_DECLS([LLONG_MAX, LLONG_MIN, ULLONG_MAX, PATH_MAX], [], [], [
#include <sys/types.h>
#include <limits.h>
])
AC_CHECK_DECLS([SIZE_MAX], [], [], [
#include <sys/types.h>
#include <limits.h>
#if defined(HAVE_STDINT_H)
# include <stdint.h>
#elif defined(HAVE_INTTYPES_H)
# include <inttypes.h>
#endif
])
dnl
dnl Try to find equivalents for missing types
dnl
if test "$ac_cv_have_decl_LLONG_MAX" != "yes"; then
    AC_CHECK_DECLS([QUAD_MAX], [], [], [[
#include <sys/types.h>
#include <limits.h>
    ]])
fi
if test "$ac_cv_have_decl_LLONG_MIN" != "yes"; then
    AC_CHECK_DECLS([QUAD_MIN], [], [], [[
#include <sys/types.h>
#include <limits.h>
    ]])
fi
if test "$ac_cv_have_decl_ULLONG_MAX" != "yes"; then
    AC_CHECK_DECLS([UQUAD_MAX], [], [], [[
#include <sys/types.h>
#include <limits.h>
    ]])
fi
if test "$ac_cv_have_decl_SIZE_MAX" != "yes"; then
    AC_CHECK_DECLS([SIZE_T_MAX], [], [], [[
#include <sys/types.h>
#include <limits.h>
    ]])
fi
if test "$ac_cv_have_decl_PATH_MAX" != "yes"; then
    AC_CHECK_DECLS([_POSIX_PATH_MAX], [], [], [[
#include <sys/types.h>
#include <limits.h>
    ]])
fi

dnl
dnl Check for strsignal() or sys_siglist
dnl
AC_CHECK_FUNCS([strsignal], [], [
    AC_LIBOBJ(strsignal)
    SUDO_APPEND_COMPAT_EXP(sudo_strsignal)
    HAVE_SIGLIST="false"
    AC_CHECK_DECLS([sys_siglist, _sys_siglist], [
	HAVE_SIGLIST="true"
	break
    ], [ ], [
AC_INCLUDES_DEFAULT
#include <signal.h>
    ])
    if test "$HAVE_SIGLIST" != "true"; then
	AC_LIBOBJ(siglist)
    fi
])

dnl
dnl Check for sig2str(), sys_signame or sys_sigabbrev
dnl
AC_CHECK_FUNCS([sig2str], [
    AC_CHECK_DECLS(SIG2STR_MAX, [], [], [
#	include <signal.h>
])], [
    AC_LIBOBJ(sig2str)
    SUDO_APPEND_COMPAT_EXP(sudo_sig2str)
    HAVE_SIGNAME="false"
    AC_CHECK_DECLS([sys_signame, _sys_signame, sys_sigabbrev], [
	HAVE_SIGNAME="true"
	break
    ], [ ], [
AC_INCLUDES_DEFAULT
#include <signal.h>
    ])
    if test "$HAVE_SIGNAME" != "true"; then
	AC_CACHE_CHECK([for undeclared sys_sigabbrev],
	    [sudo_cv_var_sys_sigabbrev],
	    [AC_LINK_IFELSE(
		[AC_LANG_PROGRAM([[extern char **sys_sigabbrev;]], [[return sys_sigabbrev[1];]])],
		    [sudo_cv_var_sys_sigabbrev=yes],
		    [sudo_cv_var_sys_sigabbrev=no]
		)
	    ]
	)
	if test "$sudo_cv_var_sys_sigabbrev" = yes; then
	    AC_DEFINE(HAVE_SYS_SIGABBREV)
	else
	    AC_LIBOBJ(signame)
	fi
    fi
])

dnl
dnl nsswitch.conf and its equivalents
dnl
if test ${with_netsvc-"no"} != "no"; then
    SUDO_DEFINE_UNQUOTED(_PATH_NETSVC_CONF, "${with_netsvc-/etc/netsvc.conf}")
    netsvc_conf=${with_netsvc-/etc/netsvc.conf}
elif test ${with_nsswitch-"yes"} != "no"; then
    SUDO_DEFINE_UNQUOTED(_PATH_NSSWITCH_CONF, "${with_nsswitch-/etc/nsswitch.conf}")
    nsswitch_conf=${with_nsswitch-/etc/nsswitch.conf}
fi

dnl
dnl Mutually exclusive auth checks come first, followed by
dnl non-exclusive ones.  Note: passwd must be last of all!
dnl

dnl
dnl Convert default authentication methods to with_* if
dnl no explicit authentication scheme was specified.
dnl
if test -z "${AUTH_EXCL}${AUTH_REG}" -a -n "$AUTH_EXCL_DEF"; then
    for auth in $AUTH_EXCL_DEF; do
	case $auth in
	    AIX_AUTH)	with_aixauth=maybe;;
	    BSD_AUTH)	with_bsdauth=maybe;;
	    PAM)	with_pam=maybe;;
	    SIA)	CHECKSIA=true;;
	esac
    done
fi

dnl
dnl PAM support.  Systems that use PAM by default set with_pam=default
dnl and we do the actual tests here.
dnl
if test ${with_pam-"no"} != "no"; then
    #
    # Check for pam_start() in libpam first, then for pam_appl.h.
    #
    found_pam_lib=no
    AC_CHECK_LIB(pam, pam_start, [found_pam_lib=yes], [], [$lt_cv_dlopen_libs])
    #
    # Some PAM implementations (macOS for example) put the PAM headers
    # in /usr/include/pam instead of /usr/include/security...
    #
    found_pam_hdrs=no
    AC_CHECK_HEADERS([security/pam_appl.h] [pam/pam_appl.h], [found_pam_hdrs=yes; break])
    if test "$found_pam_lib" = "yes" -a "$found_pam_hdrs" = "yes"; then
	# Found both PAM libs and headers
	with_pam=yes
    elif test "$with_pam" = "yes"; then
	if test "$found_pam_lib" = "no"; then
	    AC_MSG_ERROR(["--with-pam specified but unable to locate PAM development library."])
	fi
	if test "$found_pam_hdrs" = "no"; then
	    AC_MSG_ERROR(["--with-pam specified but unable to locate PAM development headers."])
	fi
    elif test "$found_pam_lib" != "$found_pam_hdrs"; then
	if test "$found_pam_lib" = "no"; then
	    AC_MSG_ERROR(["found PAM headers but no PAM development library; specify --without-pam to build without PAM"])
	fi
	if test "$found_pam_hdrs" = "no"; then
	    AC_MSG_ERROR(["found PAM library but no PAM development headers; specify --without-pam to build without PAM"])
	fi
    fi

    if test "$with_pam" = "yes"; then
	# Older PAM implementations lack pam_getenvlist
	OLIBS="$LIBS"
	LIBS="$LIBS -lpam $lt_cv_dlopen_libs"
	AC_CHECK_FUNCS([pam_getenvlist])
	LIBS="$OLIBS"

	# We already link with -ldl if needed (see LIBDL below)
	SUDOERS_LIBS="${SUDOERS_LIBS} -lpam"
	AC_DEFINE(HAVE_PAM)
	AUTH_OBJS="$AUTH_OBJS pam.lo";
	AUTH_EXCL=PAM

	AC_ARG_WITH(pam-login, [AS_HELP_STRING([--with-pam-login], [enable specific PAM session for sudo -i])],
	[case $with_pam_login in
	    yes)	AC_DEFINE([HAVE_PAM_LOGIN])
			AC_MSG_CHECKING(whether to use PAM login)
			AC_MSG_RESULT(yes)
			pam_login_service="sudo-i"
			;;
	    no)		;;
	    *)		AC_MSG_ERROR(["--with-pam-login does not take an argument."])
			;;
	esac])

	AC_MSG_CHECKING(whether to use PAM session support)
	AC_ARG_ENABLE(pam_session,
	[AS_HELP_STRING([--disable-pam-session], [Disable PAM session support])],
	    [ case "$enableval" in
		yes)	AC_MSG_RESULT(yes)
			;;
		no)	AC_MSG_RESULT(no)
			AC_DEFINE(NO_PAM_SESSION)
			pam_session=off
			;;
		*)	AC_MSG_RESULT(no)
			AC_MSG_WARN([Ignoring unknown argument to --enable-pam-session: $enableval])
			;;
	    esac], AC_MSG_RESULT(yes))
    fi
fi

dnl
dnl AIX general authentication
dnl We may build in support for both AIX LAM and PAM and select
dnl which one to use at run-time.
dnl
if test ${with_aixauth-'no'} != "no"; then
    AC_CHECK_FUNCS([authenticate], [with_aixauth=yes])
    if test "${with_aixauth}" = "yes"; then
	AC_MSG_NOTICE([using AIX general authentication])
	AC_DEFINE(HAVE_AIXAUTH)
	AUTH_OBJS="$AUTH_OBJS aix_auth.lo";
	SUDOERS_LIBS="${SUDOERS_LIBS} -ls"
	AUTH_EXCL=AIX_AUTH
    fi
fi

dnl
dnl BSD authentication
dnl If set to "maybe" only enable if no other exclusive method in use.
dnl
if test ${with_bsdauth-'no'} != "no"; then
    AC_CHECK_HEADER(bsd_auth.h, AC_DEFINE(HAVE_BSD_AUTH_H)
	[AUTH_OBJS="$AUTH_OBJS bsdauth.lo"]
	[BSDAUTH_USAGE='[[-a type]] ']
	[AUTH_EXCL=BSD_AUTH; BAMAN=1],
	[AC_MSG_ERROR([BSD authentication was specified but bsd_auth.h could not be found])])
fi

dnl
dnl SIA authentication for Tru64 Unix
dnl
if test ${CHECKSIA-'false'} = "true"; then
    AC_CHECK_FUNCS([sia_ses_init], [found=true], [found=false])
    if test "$found" = "true"; then
	AUTH_EXCL=SIA
	AUTH_OBJS="$AUTH_OBJS sia.lo"
    fi
fi

dnl
dnl extra FWTK libs + includes
dnl
if test ${with_fwtk-'no'} != "no"; then
    if test "$with_fwtk" != "yes"; then
	SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${with_fwtk}])
	AX_APPEND_FLAG([-I${with_fwtk}], [CPPFLAGS])
	with_fwtk=yes
    fi
    SUDOERS_LIBS="${SUDOERS_LIBS} -lauth -lfwall"
    AUTH_OBJS="$AUTH_OBJS fwtk.lo"
fi

dnl
dnl extra SecurID lib + includes
dnl
if test ${with_SecurID-'no'} != "no"; then
    if test "$with_SecurID" != "yes"; then
	:
    elif test -d /usr/ace/examples; then
	with_SecurID=/usr/ace/examples
    else
	with_SecurID=/usr/ace
    fi
    AX_APPEND_FLAG([-I${with_SecurID}], [CPPFLAGS])
    SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${with_SecurID}])
    SUDOERS_LIBS="${SUDOERS_LIBS} -laceclnt -lpthread"
    AUTH_OBJS="$AUTH_OBJS securid5.lo";
fi

dnl
dnl Non-mutually exclusive auth checks come next.
dnl Note: passwd must be last of all!
dnl

dnl
dnl Convert default authentication methods to with_* if
dnl no explicit authentication scheme was specified.
dnl
if test -z "${AUTH_EXCL}" -a -n "$AUTH_DEF"; then
    for auth in $AUTH_DEF; do
	case $auth in
	    passwd)	: ${with_passwd='maybe'};;
	esac
    done
fi

dnl
dnl Kerberos V
dnl There is an easy way and a hard way...
dnl
if test ${with_kerb5-'no'} != "no"; then
    AC_CHECK_PROG(KRB5CONFIG, krb5-config, yes, "")
    if test -n "$KRB5CONFIG"; then
	AC_DEFINE(HAVE_KERB5)
	AUTH_OBJS="$AUTH_OBJS kerb5.lo"
	AX_APPEND_FLAG([`krb5-config --cflags`], [CPPFLAGS])
	SUDOERS_LIBS="$SUDOERS_LIBS `krb5-config --libs`"
	dnl
	dnl Try to determine whether we have Heimdal or MIT Kerberos
	dnl
	AC_MSG_CHECKING(whether we are using Heimdal)
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <krb5.h>]], [[const char *tmp = heimdal_version;]])], [
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_HEIMDAL)
	    ], [
		AC_MSG_RESULT(no)
	    ]
	)
    else
	AC_DEFINE(HAVE_KERB5)
	dnl
	dnl Use the specified directory, if any, else search for correct inc dir
	dnl
	if test "$with_kerb5" = "yes"; then
	    found=no
	    O_CPPFLAGS="$CPPFLAGS"
	    for dir in "" "kerberosV/" "krb5/" "kerberos5/" "kerberosv5/"; do
		CPPFLAGS="$O_CPPFLAGS -I/usr/include/${dir}"
		AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[#include <krb5.h>]])], [found=yes; break])
	    done
	    if test X"$found" = X"no"; then
		CPPFLAGS="$O_CPPFLAGS"
		AC_MSG_WARN([Unable to locate Kerberos V include files, you will have to edit the Makefile and add -I/path/to/krb/includes to CPPFLAGS])
	    fi
	else
	    dnl XXX - try to include krb5.h here too
	    SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${with_kerb5}/lib])
	    AX_APPEND_FLAG([-I${with_kerb5}/include], [CPPFLAGS])
	fi

	dnl
	dnl Try to determine whether we have Heimdal or MIT Kerberos
	dnl
	AC_MSG_CHECKING(whether we are using Heimdal)
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <krb5.h>]], [[const char *tmp = heimdal_version;]])], [
		AC_MSG_RESULT(yes)
		AC_DEFINE(HAVE_HEIMDAL)
		# XXX - need to check whether -lcrypo is needed!
		SUDOERS_LIBS="${SUDOERS_LIBS} -lkrb5 -lcrypto -ldes -lcom_err -lasn1"
		AC_CHECK_LIB(roken, main, [SUDOERS_LIBS="${SUDOERS_LIBS} -lroken"])
	    ], [
		AC_MSG_RESULT(no)
		SUDOERS_LIBS="${SUDOERS_LIBS} -lkrb5 -lk5crypto -lcom_err"
		AC_CHECK_LIB(krb5support, main, [SUDOERS_LIBS="${SUDOERS_LIBS} -lkrb5support"])
	])
	AUTH_OBJS="$AUTH_OBJS kerb5.lo"
    fi
    _LIBS="$LIBS"
    LIBS="${LIBS} ${SUDOERS_LIBS}"
    AC_CHECK_FUNCS([krb5_verify_user krb5_init_secure_context])
    AC_CHECK_FUNCS([krb5_get_init_creds_opt_alloc], [
	AC_CACHE_CHECK([whether krb5_get_init_creds_opt_free takes a context],
	    sudo_cv_krb5_get_init_creds_opt_free_two_args, [
		AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <krb5.h>]],
			[[krb5_get_init_creds_opt_free(NULL, NULL);]]
		    )],
		    [sudo_cv_krb5_get_init_creds_opt_free_two_args=yes],
		    [sudo_cv_krb5_get_init_creds_opt_free_two_args=no]
		)
	    ]
	)
    ])
    if test X"$sudo_cv_krb5_get_init_creds_opt_free_two_args" = X"yes"; then
  	AC_DEFINE(HAVE_KRB5_GET_INIT_CREDS_OPT_FREE_TWO_ARGS)
    fi
    LIBS="$_LIBS"
    AC_MSG_CHECKING(whether to use an instance name for Kerberos V)
    AC_ARG_ENABLE(kerb5-instance,
    [AS_HELP_STRING([--enable-kerb5-instance], [instance string to append to the username (separated by a slash)])],
	[ case "$enableval" in
	    yes)	AC_MSG_ERROR(["must give --enable-kerb5-instance an argument."])
			;;
	    no)		AC_MSG_RESULT(no)
			;;
	    *)		SUDO_DEFINE_UNQUOTED(SUDO_KRB5_INSTANCE, "$enableval")
			AC_MSG_RESULT([$enableval])
			;;
	esac], AC_MSG_RESULT(no))
fi

dnl
dnl extra AFS libs and includes
dnl
if test ${with_AFS-'no'} = "yes"; then

    # looks like the "standard" place for AFS libs is /usr/afsws/lib
    AFSLIBDIRS="/usr/lib/afs /usr/afsws/lib /usr/afsws/lib/afs"
    for i in $AFSLIBDIRS; do
	if test -d ${i}; then
	    SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [$i])
	    FOUND_AFSLIBDIR=true
	fi
    done
    if test -z "$FOUND_AFSLIBDIR"; then
	AC_MSG_WARN([Unable to locate AFS libraries, you will have to edit the Makefile and add -L/path/to/afs/libs to SUDOERS_LDFLAGS or rerun configure with the --with-libpath options.])
    fi

    # Order is important here.  Note that we build AFS_LIBS from right to left
    # since AFS_LIBS may be initialized with BSD compat libs that must go last
    AFS_LIBS="-laudit ${AFS_LIBS}"
    for i in $AFSLIBDIRS; do
	if test -f ${i}/util.a; then
	    AFS_LIBS="${i}/util.a ${AFS_LIBS}"
	    FOUND_UTIL_A=true
	    break;
	fi
    done
    if test -z "$FOUND_UTIL_A"; then
	AFS_LIBS="-lutil ${AFS_LIBS}"
    fi
    AFS_LIBS="-lkauth -lprot -lubik -lauth -lrxkad -lsys -ldes -lrx -llwp -lcom_err ${AFS_LIBS}"

    # AFS includes may live in /usr/include on some machines...
    for i in /usr/afsws/include; do
	if test -d ${i}; then
	    AX_APPEND_FLAG([-I${i}], [CPPFLAGS])
	    FOUND_AFSINCDIR=true
	fi
    done

    if test -z "$FOUND_AFSLIBDIR"; then
	AC_MSG_WARN([Unable to locate AFS include dir, you may have to edit the Makefile and add -I/path/to/afs/includes to CPPFLAGS or rerun configure with the --with-incpath options.])
    fi

    AUTH_OBJS="$AUTH_OBJS afs.lo"
fi

dnl
dnl extra DCE obj + lib
dnl Order of libs in HP-UX 10.x is important, -ldce must be last.
dnl
if test ${with_DCE-'no'} = "yes"; then
    DCE_OBJS="${DCE_OBJS} dce_pwent.o"
    SUDOERS_LIBS="${SUDOERS_LIBS} -ldce"
    AUTH_OBJS="$AUTH_OBJS dce.lo"
fi

dnl
dnl extra S/Key lib and includes
dnl
if test "${with_skey-'no'}" = "yes"; then
    O_LDFLAGS="$LDFLAGS"
    if test "$with_skey" != "yes"; then
	AX_APPEND_FLAG([-I${with_skey}/include], [CPPFLAGS])
	LDFLAGS="$LDFLAGS -L${with_skey}/lib"
	SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${with_skey}/lib])
	AC_CHECK_HEADER([skey.h], [found=yes], [found=no], [#include <stdio.h>])
    else
	found=no
	O_CPPFLAGS="$CPPFLAGS"
	for dir in "" "/usr/local" "/usr/contrib"; do
	    test -n "$dir" && CPPFLAGS="$O_CPPFLAGS -I${dir}/include"
	    AC_CHECK_HEADER([skey.h], [found=yes; break], [], [#include <stdio.h>])
	done
	if test "$found" = "no" -o -z "$dir"; then
	    CPPFLAGS="$O_CPPFLAGS"
	else
	    LDFLAGS="$LDFLAGS -L${dir}/lib"
	    SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${dir}/lib])
	fi
	if test "$found" = "no"; then
	    AC_MSG_WARN([Unable to locate skey.h, you will have to edit the Makefile and add -I/path/to/skey/includes to CPPFLAGS])
	fi
    fi
    AC_CHECK_LIB(skey, main, [found=yes], [AC_MSG_WARN([Unable to locate libskey.a, you will have to edit the Makefile and add -L/path/to/skey/lib to SUDOERS_LDFLAGS])])
    AC_CHECK_LIB(skey, skeyaccess, AC_DEFINE(HAVE_SKEYACCESS))

    AC_MSG_CHECKING([for RFC1938-compliant skeychallenge])
    AC_COMPILE_IFELSE(
	[AC_LANG_PROGRAM([[
#	    include <stdio.h>
#	    include <skey.h>]],
	    [[skeychallenge(NULL, NULL, NULL, 0);]]
	)], [
	    AC_DEFINE(HAVE_RFC1938_SKEYCHALLENGE)
	    AC_MSG_RESULT([yes])
	], [
	    AC_MSG_RESULT([no])
	]
    )

    LDFLAGS="$O_LDFLAGS"
    SUDOERS_LIBS="${SUDOERS_LIBS} -lskey"
    AUTH_OBJS="$AUTH_OBJS rfc1938.lo"
fi

dnl
dnl extra OPIE lib and includes
dnl
if test "${with_opie-'no'}" = "yes"; then
    O_LDFLAGS="$LDFLAGS"
    if test "$with_opie" != "yes"; then
	AX_APPEND_FLAG([-I${with_opie}/include], [CPPFLAGS])
	LDFLAGS="$LDFLAGS -L${with_opie}/lib"
	SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${with_opie}/lib])
	AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[#include <opie.h>]])], [found=yes], [found=no])
    else
	found=no
	O_CPPFLAGS="$CPPFLAGS"
	for dir in "" "/usr/local" "/usr/contrib"; do
	    test -n "$dir" && CPPFLAGS="$O_CPPFLAGS -I${dir}/include"
	    AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[#include <opie.h>]])], [found=yes; break])
	done
	if test "$found" = "no" -o -z "$dir"; then
	    CPPFLAGS="$O_CPPFLAGS"
	else
	    LDFLAGS="$LDFLAGS -L${dir}/lib"
	    SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${dir}/lib])
	fi
	if test "$found" = "no"; then
	    AC_MSG_WARN([Unable to locate opie.h, you will have to edit the Makefile and add -I/path/to/opie/includes to CPPFLAGS])
	fi
    fi
    AC_CHECK_LIB(opie, main, [found=yes], [AC_MSG_WARN([Unable to locate libopie.a, you will have to edit the Makefile and add -L/path/to/opie/lib to SUDOERS_LDFLAGS])])
    LDFLAGS="$O_LDFLAGS"
    SUDOERS_LIBS="${SUDOERS_LIBS} -lopie"
    AUTH_OBJS="$AUTH_OBJS rfc1938.lo"
fi

dnl
dnl Check for shadow password routines if we have not already done so.
dnl If there is a specific list of functions to check we do that first.
dnl Otherwise, we check for SVR4-style and then SecureWare-style.
dnl
if test ${with_passwd-'no'} != "no"; then
    dnl
    dnl if crypt(3) not in libc, look elsewhere
    dnl
    if test -z "$LIB_CRYPT"; then
	_LIBS="$LIBS"
	AC_SEARCH_LIBS([crypt], [crypt crypt_d ufc], [test -n "$ac_lib" && shadow_libs="${shadow_libs} $ac_res"])
	LIBS="$_LIBS"
    fi

    if test "$CHECKSHADOW" = "true" -a -n "$shadow_funcs"; then
	_LIBS="$LIBS"
	LIBS="$LIBS $shadow_libs"
	found=no
	AC_CHECK_FUNCS($shadow_funcs, [found=yes])
	if test "$found" = "yes"; then
	    case "$shadow_funcs" in
		*getprpwnam*) SECUREWARE=1;;
	    esac
	else
	    shadow_libs=
	fi
	CHECKSHADOW=false
	LIBS="$_LIBS"
    fi
    if test "$CHECKSHADOW" = "true"; then
	AC_SEARCH_LIBS([getspnam], [gen shadow], [AC_DEFINE(HAVE_GETSPNAM)] [CHECKSHADOW=false; test -n "$ac_lib" && shadow_libs="${shadow_libs} $ac_res"])
    fi
    if test "$CHECKSHADOW" = "true"; then
	AC_SEARCH_LIBS([getprpwnam], [sec security prot], [AC_DEFINE(HAVE_GETPRPWNAM)] [CHECKSHADOW=false; SECUREWARE=1; test -n "$ac_lib" && shadow_libs="${shadow_libs} $ac_res"])
    fi
    if test -n "$shadow_libs"; then
	# sudoers needs to link with shadow libs for password auth
	SUDOERS_LIBS="$SUDOERS_LIBS $shadow_libs"
    fi
    if test -n "$SECUREWARE"; then
	_LIBS="$LIBS"
	LIBS="$LIBS $shadow_libs"
	AC_CHECK_FUNCS([bigcrypt])
	AUTH_OBJS="$AUTH_OBJS secureware.lo"
	# set_auth_parameters() and initprivs() are called from sudo.c
	AC_CHECK_FUNCS([set_auth_parameters initprivs], [test -n "$shadow_libs" && SUDO_LIBS="$SUDO_LIBS $shadow_libs"])
	LIBS="$_LIBS"
    fi
fi

dnl
dnl Choose event subsystem backend: poll or select
dnl
if test X"$enable_poll" = X""; then
    AC_CHECK_FUNCS([poll], [enable_poll=yes], [enable_poll=no])
elif test X"$enable_poll" = X"yes"; then
    AC_DEFINE(HAVE_POLL)
fi
if test "$enable_poll" = "yes"; then
    COMMON_OBJS="${COMMON_OBJS} event_poll.lo"
else
    COMMON_OBJS="${COMMON_OBJS} event_select.lo"
fi

dnl
dnl extra lib and .o file for LDAP support
dnl
if test ${with_ldap-'no'} != "no"; then
    O_LDFLAGS="$LDFLAGS"
    if test "$with_ldap" != "yes"; then
	SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${with_ldap}/lib])
	LDFLAGS="$LDFLAGS -L${with_ldap}/lib"
	AX_APPEND_FLAG([-I${with_ldap}/include], [CPPFLAGS])
	with_ldap=yes
    fi
    SUDOERS_OBJS="${SUDOERS_OBJS} ldap.lo"
    LDAP=""

    _LIBS="$LIBS"
    LDAP_LIBS=""
    IBMLDAP_EXTRA=""
    found=no
    # On HP-UX, libibmldap has a hidden dependency on libCsup
    case "$host_os" in
	hpux*) AC_CHECK_LIB(Csup, main, [IBMLDAP_EXTRA=" -lCsup"]);;
    esac
    AC_SEARCH_LIBS(ldap_init, "ibmldap${IBMLDAP_EXTRA}" "ibmldap -lidsldif${IBMLDAP_EXTRA}" "ldap" "ldap -llber" "ldap -llber -lssl -lcrypto" "ibmldap${IBMLDAP_EXTRA}", [
	test "$ac_res" != "none required" && LDAP_LIBS="$ac_res"
	found=yes
    ])
    # If nothing linked, try -lldap and hope for the best
    if test "$found" = "no"; then
	LDAP_LIBS="-lldap"
    fi
    LIBS="${_LIBS} ${LDAP_LIBS}"
    dnl check if we need to link with -llber for ber_set_option
    OLIBS="$LIBS"
    AC_MSG_CHECKING([whether lber.h defines LBER_OPT_DEBUG_LEVEL])
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#   include <lber.h>]], [[int opt=LBER_OPT_DEBUG_LEVEL;]])], [
	AC_MSG_RESULT([yes])
	AC_SEARCH_LIBS([ber_set_option], [lber], [found=yes], [found=no])
	if test X"$found" = X"yes" -a X"$LIBS" != X"$OLIBS"; then
	    LDAP_LIBS="$LDAP_LIBS -llber"
	fi
    ], [
	AC_MSG_RESULT([no])
    ])
    dnl check if ldap.h includes lber.h for us
    AC_MSG_CHECKING([whether lber.h is needed])
    AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#   include <ldap.h>]], [[(void)ldap_init(0, 0)]])], [AC_MSG_RESULT([no])], [
    AC_MSG_RESULT([yes])
    AC_DEFINE(HAVE_LBER_H)])

    if test ${enable_sasl-'yes'} = "yes"; then
	found_sasl_h=no
	AC_CHECK_HEADERS([sasl/sasl.h] [sasl.h], [
	    found_sasl_h=yes
	    AC_CHECK_FUNCS([ldap_sasl_interactive_bind_s])
	    break
	])
	if test X${enable_sasl} = X"yes"; then
	    if test X"$found_sasl_h" != X"yes"; then
		AC_MSG_ERROR(["--enable-sasl specified but unable to locate SASL development headers."])
	    fi
	    if test X"$ac_cv_func_ldap_sasl_interactive_bind_s" != X"yes"; then :
		AC_MSG_ERROR(["--enable-sasl specified but SASL support is missing in your LDAP library"])
	    fi
	fi
    fi
    AC_CHECK_HEADERS([ldap_ssl.h] [mps/ldap_ssl.h], [break], [], [#include <ldap.h>])
    AC_CHECK_FUNCS([ldap_initialize ldap_start_tls_s ldapssl_init ldapssl_set_strength ldap_unbind_ext_s ldap_str2dn ldap_create ldap_sasl_bind_s ldap_ssl_init ldap_ssl_client_init ldap_start_tls_s_np])
    AC_CHECK_FUNCS([ldap_search_ext_s ldap_search_st], [break])

    if test X"$check_gss_krb5_ccache_name" = X"yes"; then
	AC_CHECK_LIB(gssapi, gss_krb5_ccache_name,
	    AC_DEFINE(HAVE_GSS_KRB5_CCACHE_NAME)
	    [LDAP_LIBS="${LDAP_LIBS} -lgssapi"],
	    AC_CHECK_LIB(gssapi_krb5, gss_krb5_ccache_name,
		AC_DEFINE(HAVE_GSS_KRB5_CCACHE_NAME)
		[LDAP_LIBS="${LDAP_LIBS} -lgssapi_krb5"])
	)

	# gssapi headers may be separate or part of Kerberos V
	found=no
	O_CPPFLAGS="$CPPFLAGS"
	for dir in "" "kerberosV" "krb5" "kerberos5" "kerberosv5"; do
	    test X"$dir" != X"" && CPPFLAGS="$O_CPPFLAGS -I/usr/include/${dir}"
	    AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[#include <gssapi/gssapi.h>]])], [found="gssapi/gssapi.h"; break], [AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[#include <gssapi.h>]])], [found="gssapi.h"; break])])
	done
	if test X"$found" != X"no"; then
	    AC_CHECK_HEADERS([$found])
	    if test X"$found" = X"gssapi/gssapi.h"; then
		AC_CHECK_HEADERS([gssapi/gssapi_krb5.h])
	    fi
	else
	    CPPFLAGS="$O_CPPFLAGS"
	    AC_MSG_WARN([Unable to locate gssapi.h, you will have to edit the Makefile and add -I/path/to/gssapi/includes to CPPFLAGS])
	fi
    fi

    SUDOERS_LIBS="${SUDOERS_LIBS} ${LDAP_LIBS}"
    LIBS="$_LIBS"
    LDFLAGS="$O_LDFLAGS"
fi

#
# How to do dynamic object loading.
# We support dlopen() and sh_load(), else fall back to static loading.
#
case "$lt_cv_dlopen" in
    dlopen)
	AC_DEFINE(HAVE_DLOPEN)
	if test "$enable_static_sudoers" = "yes"; then
	    AC_DEFINE(STATIC_SUDOERS_PLUGIN)
	    SUDO_OBJS="${SUDO_OBJS} preload.o"
	    STATIC_SUDOERS="\$(top_builddir)/plugins/sudoers/sudoers.la"
	    AX_APPEND_FLAG([--tag=disable-shared -static], [SUDOERS_LDFLAGS])
	    LT_STATIC=""
	else
	    LT_STATIC="--tag=disable-static"
	fi
	;;
    shl_load)
	AC_DEFINE(HAVE_SHL_LOAD)
	if test "$enable_static_sudoers" = "yes"; then
	    AC_DEFINE(STATIC_SUDOERS_PLUGIN)
	    SUDO_OBJS="${SUDO_OBJS} preload.o"
	    STATIC_SUDOERS="\$(top_builddir)/plugins/sudoers/sudoers.la"
	    AX_APPEND_FLAG([--tag=disable-shared -static], [SUDOERS_LDFLAGS])
	    LT_STATIC=""
	else
	    LT_STATIC="--tag=disable-static"
	fi
	;;
    *)
	if test X"${ac_cv_func_dlopen}" = X"yes"; then
	    AC_MSG_ERROR(["dlopen present but libtool doesn't appear to support your platform."])
	fi
	# Preload sudoers module symbols
	AC_DEFINE(STATIC_SUDOERS_PLUGIN)
	SUDO_OBJS="${SUDO_OBJS} preload.o"
	STATIC_SUDOERS="\$(top_builddir)/plugins/sudoers/sudoers.la"
	LT_STATIC=""
	;;
esac

#
# The check_symbols test can only succeed with a dynamic sudoers plugin.
#
if test X"$STATIC_SUDOERS" = X""; then
    SUDOERS_TEST_PROGS="${SUDOERS_TEST_PROGS}${SUDOERS_TEST_PROGS+ }check_symbols"
fi

#
# We can only disable linking with the shared libsudo_util if
# sudoers is linked statically too.
#
if test "$enable_shared_libutil" = "no"; then
    if test X"$STATIC_SUDOERS" = X""; then
	AC_MSG_ERROR(["--disable-shared-libutil may only be specified with --enable-static-sudoers or when dynamic linking is disabled."])
    else
	# Do not install sudoers or libsudo_util.
	AX_APPEND_FLAG([-no-install], [SUDOERS_LDFLAGS])
	AX_APPEND_FLAG([-no-install], [LIBUTIL_LDFLAGS])
    fi
fi

# On HP-UX, you cannot dlopen() a shared object that uses pthreads unless
# the main program is linked against -lpthread.  We have no knowledge of
# what libraries a plugin may depend on (e.g. HP-UX LDAP which uses pthreads)
# so always link against -lpthread on HP-UX if it is available.
# This check should go after all other libraries tests.
case "$host_os" in
    hpux*)
	AC_CHECK_LIB(pthread, main, [SUDO_LIBS="${SUDO_LIBS} -lpthread"])
	AC_DEFINE(_REENTRANT)
	;;
esac

dnl
dnl Check for log file, timestamp and iolog locations
dnl
if test "$utmp_style" = "LEGACY"; then
    SUDO_PATH_UTMP
fi
SUDO_LOGFILE
SUDO_RUNDIR
SUDO_VARDIR
SUDO_IO_LOGDIR
SUDO_TZDIR

dnl
dnl Attempt to use _FORTIFY_SOURCE with sprintf.  If the headers support
dnl it but libc does not, __sprintf_chk should be an undefined symbol.
dnl
if test "$enable_hardening" != "no"; then
    O_CPPFLAGS="$CPPFLAGS"
    AX_APPEND_FLAG([-D_FORTIFY_SOURCE=2], [CPPFLAGS])
    AC_CACHE_CHECK([whether _FORTIFY_SOURCE may be specified],
	[sudo_cv_use_fortify_source],
	[AC_LINK_IFELSE([
		AC_LANG_PROGRAM(
		    [[]], [[char buf[4]; (void)sprintf(buf, "%s", "foo");]]
		)],
		[sudo_cv_use_fortify_source=yes],
		[sudo_cv_use_fortify_source=no]
	    )
	]
	[AC_LINK_IFELSE(
	    [AC_LANG_PROGRAM([[]], [[]])],
		[sudo_cv_use_fortify_source=yes],
		[sudo_cv_use_fortify_source=no]
	    )
	]
    )
    if test "$sudo_cv_use_fortify_source" != yes; then
	CPPFLAGS="$O_CPPFLAGS"
    fi
fi

dnl
dnl Turn warnings into errors.
dnl All compiler/loader tests after this point will fail if
dnl a warning is displayed (normally, warnings are not fatal).
dnl
AC_LANG_WERROR

dnl
dnl If compiler supports the -static-libgcc flag use it unless we have
dnl GNU ld (which can avoid linking in libgcc when it is not needed).
dnl This test relies on AC_LANG_WERROR
dnl
if test -n "$GCC" -a "$lt_cv_prog_gnu_ld" != "yes" -a -n "$GCC"; then
    AX_CHECK_COMPILE_FLAG([-static-libgcc], [AX_APPEND_FLAG([-Wc,-static-libgcc], [LT_LDFLAGS])])
fi

dnl
dnl Check for symbol visibility support.
dnl This test relies on AC_LANG_WERROR
dnl
if test -n "$GCC"; then
    AX_CHECK_COMPILE_FLAG([-fvisibility=hidden], [
	AC_DEFINE(HAVE_DSO_VISIBILITY)
	CFLAGS="${CFLAGS} -fvisibility=hidden"
	LT_LDEXPORTS=
	LT_LDDEP=
    ])
else
    case "$host_os" in
	hpux*)
	    AX_CHECK_COMPILE_FLAG([-Bhidden_def], [
		AC_DEFINE(HAVE_DSO_VISIBILITY)
		CFLAGS="${CFLAGS} -Bhidden_def"
		LT_LDEXPORTS=
		LT_LDDEP=
	    ])
	    ;;
	solaris2*)
	    AX_CHECK_COMPILE_FLAG([-xldscope=hidden], [
		AC_DEFINE(HAVE_DSO_VISIBILITY)
		CFLAGS="${CFLAGS} -xldscope=hidden"
		LT_LDEXPORTS=
		LT_LDDEP=
	    ])
	    ;;
    esac
fi

dnl
dnl If the compiler doesn't have symbol visibility support, it may
dnl support version scripts (only GNU and Solaris ld).
dnl This test relies on AC_LANG_WERROR
dnl
if test -n "$LT_LDEXPORTS"; then
    if test "$lt_cv_prog_gnu_ld" = "yes"; then
	AC_CACHE_CHECK([whether ld supports anonymous map files],
	    [sudo_cv_var_gnu_ld_anon_map],
	    [
		sudo_cv_var_gnu_ld_anon_map=no
		cat > conftest.map <<-EOF
		{
		    global: foo;
		    local:  *;
		};
EOF
		_CFLAGS="$CFLAGS"
		CFLAGS="$CFLAGS $lt_prog_compiler_pic"
		_LDFLAGS="$LDFLAGS"
		LDFLAGS="$LDFLAGS -fpic -shared -Wl,--version-script,./conftest.map"
		AC_LINK_IFELSE([AC_LANG_PROGRAM([[int foo;]], [[]])],
		    [sudo_cv_var_gnu_ld_anon_map=yes])
		CFLAGS="$_CFLAGS"
		LDFLAGS="$_LDFLAGS"
	    ]
	)
	if test "$sudo_cv_var_gnu_ld_anon_map" = "yes"; then
	    LT_LDDEP="\$(shlib_map)"; LT_LDEXPORTS="-Wl,--version-script,\$(shlib_map)"
	fi
    else
	case "$host_os" in
	    solaris2*)
		AC_CACHE_CHECK([whether ld supports anonymous map files],
		    [sudo_cv_var_solaris_ld_anon_map],
		    [
			sudo_cv_var_solaris_ld_anon_map=no
			cat > conftest.map <<-EOF
			{
			    global: foo;
			    local:  *;
			};
EOF
			_CFLAGS="$CFLAGS"
			CFLAGS="$CFLAGS $lt_prog_compiler_pic"
			_LDFLAGS="$LDFLAGS"
			LDFLAGS="$LDFLAGS -shared -Wl,-M,./conftest.map"
			AC_LINK_IFELSE([AC_LANG_PROGRAM([[int foo;]], [[]])],
			    [sudo_cv_var_solaris_ld_anon_map=yes])
			CFLAGS="$_CFLAGS"
			LDFLAGS="$_LDFLAGS"
		    ]
		)
		if test "$sudo_cv_var_solaris_ld_anon_map" = "yes"; then
		    LT_LDDEP="\$(shlib_map)"; LT_LDEXPORTS="-Wl,-M,\$(shlib_map)"
		fi
		;;
	    hpux*)
		AC_CACHE_CHECK([whether ld supports controlling exported symbols],
		    [sudo_cv_var_hpux_ld_symbol_export],
		    [
			sudo_cv_var_hpux_ld_symbol_export=no
			echo "+e foo" > conftest.opt
			_CFLAGS="$CFLAGS"
			CFLAGS="$CFLAGS $lt_prog_compiler_pic"
			_LDFLAGS="$LDFLAGS"
			if test -n "$GCC"; then
			    LDFLAGS="$LDFLAGS -shared -Wl,-c,./conftest.opt"
			else
			    LDFLAGS="$LDFLAGS -Wl,-b -Wl,-c,./conftest.opt"
			fi
			AC_LINK_IFELSE([AC_LANG_PROGRAM([[int foo;]], [[]])],
			    [sudo_cv_var_hpux_ld_symbol_export=yes])
			CFLAGS="$_CFLAGS"
			LDFLAGS="$_LDFLAGS"
			rm -f conftest.opt
		    ]
		)
		if test "$sudo_cv_var_hpux_ld_symbol_export" = "yes"; then
		    LT_LDDEP="\$(shlib_opt)"; LT_LDEXPORTS="-Wl,-c,\$(shlib_opt)"
		fi
		;;
	esac
    fi
fi

dnl
dnl Check for -fsanitize=address,undefined support
dnl This test relies on AC_LANG_WERROR
dnl
if test "$enable_asan" = "yes"; then
    AX_CHECK_COMPILE_FLAG([-fsanitize=address -fsanitize=undefined], [
	AX_CHECK_LINK_FLAG([-fsanitize=address -fsanitize=undefined], [
	    ASAN_LDFLAGS="-Wc,-fsanitize=address -Wc,-fsanitize=undefined"
	    ASAN_CFLAGS="-fsanitize=address -fsanitize=undefined"
	    AX_CHECK_COMPILE_FLAG([-fno-omit-frame-pointer], [
		CFLAGS="$CFLAGS -fno-omit-frame-pointer"
	    ])
	    AC_DEFINE(NO_LEAKS)
	])
    ])
fi

dnl
dnl Check for PIE executable support if using gcc.
dnl This test relies on AC_LANG_WERROR
dnl
if test -n "$GCC"; then
    if test -z "$enable_pie"; then
	case "$host_os" in
	    linux*)
		# Attempt to build with PIE support
		enable_pie="maybe"
		;;
	esac
    fi
    if test -n "$enable_pie"; then
	if test "$enable_pie" = "no"; then
	    AX_CHECK_COMPILE_FLAG([-fno-pie], [
		_CFLAGS="$CFLAGS"
		CFLAGS="$CFLAGS -fno-pie"
		AX_CHECK_LINK_FLAG([-nopie], [
		    PIE_CFLAGS="-fno-pie"
		    PIE_LDFLAGS="-nopie"
		])
		CFLAGS="$_CFLAGS"
	    ])
	else
	    AX_CHECK_COMPILE_FLAG([-fPIE], [
		_CFLAGS="$CFLAGS"
		CFLAGS="$CFLAGS -fPIE"
		AX_CHECK_LINK_FLAG([-pie], [
		    if test "$enable_pie" = "maybe"; then
			SUDO_WORKING_PIE([enable_pie=yes], [])
		    fi
		    if test "$enable_pie" = "yes"; then
			PIE_CFLAGS="-fPIE"
			PIE_LDFLAGS="-Wc,-fPIE -pie"
		    fi
		])
		CFLAGS="$_CFLAGS"
	    ])
	fi
    fi
fi
if test "$enable_pie" != "yes"; then
    # Solaris 11.1 and higher supports tagging binaries to use ASLR
    case "$host_os" in
	solaris2.1[[1-9]]|solaris2.[[2-9]][[0-9]])
	    AX_CHECK_LINK_FLAG([-Wl,-z,aslr], [AX_APPEND_FLAG([-Wl,-z,aslr], [PIE_LDFLAGS])])
	    ;;
    esac
fi

dnl
dnl Check for -fstack-protector and -z relro support
dnl This test relies on AC_LANG_WERROR
dnl
if test "$enable_hardening" != "no"; then
    AC_CACHE_CHECK([for compiler stack protector support],
	[sudo_cv_var_stack_protector],
	[
	    # Avoid CFLAGS since the compiler might optimize away our test.
	    # We don't want CPPFLAGS or LIBS to interfere with the test but
	    # keep LDFLAGS as it may have an rpath needed to find the ssp lib.
	    _CPPFLAGS="$CPPFLAGS"
	    _CFLAGS="$CFLAGS"
	    _LDFLAGS="$LDFLAGS"
	    _LIBS="$LIBS"
	    CPPFLAGS=
	    LIBS=

	    sudo_cv_var_stack_protector="-fstack-protector-strong"
	    CFLAGS="$sudo_cv_var_stack_protector"
	    LDFLAGS="$_LDFLAGS $sudo_cv_var_stack_protector"
	    AC_LINK_IFELSE([
		AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
		[[char buf[1024]; buf[1023] = '\0';]])
	    ], [], [
		sudo_cv_var_stack_protector="-fstack-protector-all"
		CFLAGS="$sudo_cv_var_stack_protector"
		LDFLAGS="$_LDFLAGS $sudo_cv_var_stack_protector"
		AC_LINK_IFELSE([
		    AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
		    [[char buf[1024]; buf[1023] = '\0';]])
		], [], [
		    sudo_cv_var_stack_protector="-fstack-protector"
		    CFLAGS="$sudo_cv_var_stack_protector"
		    LDFLAGS="$_LDFLAGS $sudo_cv_var_stack_protector"
		    AC_LINK_IFELSE([
			AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
			[[char buf[1024]; buf[1023] = '\0';]])
		    ], [], [
			sudo_cv_var_stack_protector=no
		    ])
		])
	    ])
	    CPPFLAGS="$_CPPFLAGS"
	    CFLAGS="$_CFLAGS"
	    LDFLAGS="$_LDFLAGS"
	    LIBS="$_LIBS"
	]
    )
    if test X"$sudo_cv_var_stack_protector" != X"no"; then
	SSP_CFLAGS="$sudo_cv_var_stack_protector"
	SSP_LDFLAGS="-Wc,$sudo_cv_var_stack_protector"
    fi
    AX_CHECK_LINK_FLAG([-Wl,-z,relro], [AX_APPEND_FLAG([-Wl,-z,relro], [LDFLAGS])])
fi

dnl
dnl Use passwd auth module?
dnl
case "$with_passwd" in
yes|maybe)
    AUTH_OBJS="$AUTH_OBJS getspwuid.lo passwd.lo"
    ;;
*)
    AC_DEFINE(WITHOUT_PASSWD)
    if test -z "$AUTH_OBJS"; then
	AC_MSG_ERROR([no authentication methods defined.])
    fi
    ;;
esac
AUTH_OBJS=${AUTH_OBJS# }
_AUTH=`echo "$AUTH_OBJS" | sed -e 's/\.lo//g' -e 's/getspwuid *//'`
AC_MSG_NOTICE([using the following authentication methods: $_AUTH])

dnl
dnl LIBS may contain duplicates from SUDO_LIBS, SUDOERS_LIBS, or NET_LIBS
dnl
if test -n "$LIBS"; then
    L="$LIBS"
    LIBS=
    for l in ${L}; do
	dupe=0
	for sl in ${SUDO_LIBS} ${SUDOERS_LIBS} ${NET_LIBS}; do
	    test $l = $sl && dupe=1
	done
	test $dupe = 0 && LIBS="${LIBS} $l"
    done
fi

dnl
dnl OS-specific initialization
dnl
AC_DEFINE_UNQUOTED(os_init, $OS_INIT, [Define to an OS-specific initialization function or `os_init_common'.])

dnl
dnl We add -Wall and -Werror after all tests so they don't cause failures
dnl
if test -n "$GCC"; then
    if test X"$enable_warnings" = X"yes" -o X"$with_devel" = X"yes"; then
	CFLAGS="${CFLAGS} -Wall -Wsign-compare -Wpointer-arith"
    fi
    if test X"$enable_werror" = X"yes"; then
	CFLAGS="${CFLAGS} -Werror"
    fi
fi

dnl
dnl Skip regress tests and sudoers sanity check if cross compiling.
dnl
CROSS_COMPILING="$cross_compiling"

dnl
dnl Set exec_prefix
dnl
test "$exec_prefix" = "NONE" && exec_prefix='$(prefix)'

dnl
dnl Defer setting _PATH_SUDO_NOEXEC until after exec_prefix is set
dnl XXX - this is gross!
dnl
if test X"$with_noexec" != X"no" -o X"$with_selinux" != X"no" -o "$enabled_shared" != X"no"; then
    oexec_prefix="$exec_prefix"
    if test "$exec_prefix" = '$(prefix)'; then
	if test "$prefix" = "NONE"; then
	    exec_prefix="$ac_default_prefix"
	else
	    exec_prefix="$prefix"
	fi
    fi
    if test X"$with_noexec" != X"no"; then
	PROGS="${PROGS} sudo_noexec.la"
	INSTALL_NOEXEC="install-noexec"

	# Can't use asan with LD_PRELOAD
	if test "$enable_asan" != "yes"; then
	    CHECK_NOEXEC=check_noexec
	fi

	noexec_file="$with_noexec"
	_noexec_file=
	while test X"$noexec_file" != X"$_noexec_file"; do
	    _noexec_file="$noexec_file"
	    eval noexec_file="$_noexec_file"
	done
	SUDO_DEFINE_UNQUOTED(_PATH_SUDO_NOEXEC, "$noexec_file", [The fully qualified pathname of sudo_noexec.so])
    fi
    if test X"$with_selinux" != X"no"; then
	sesh_file="$libexecdir/sudo/sesh"
	_sesh_file=
	while test X"$sesh_file" != X"$_sesh_file"; do
	    _sesh_file="$sesh_file"
	    eval sesh_file="$_sesh_file"
	done
	SUDO_DEFINE_UNQUOTED(_PATH_SUDO_SESH, "$sesh_file")
    fi
    if test X"$enable_shared" != X"no"; then
	PLUGINDIR="$with_plugindir"
	_PLUGINDIR=
	while test X"$PLUGINDIR" != X"$_PLUGINDIR"; do
	    _PLUGINDIR="$PLUGINDIR"
	    eval PLUGINDIR="$_PLUGINDIR"
	done
	SUDO_DEFINE_UNQUOTED(_PATH_SUDO_PLUGIN_DIR, "$PLUGINDIR/")
	AC_DEFINE(ENABLE_SUDO_PLUGIN_API, 1, [Define to 1 to enable sudo's plugin interface.])
    fi
    exec_prefix="$oexec_prefix"
fi
if test X"$with_noexec" = X"no"; then
    SUDO_DEFINE_UNQUOTED(_PATH_SUDO_NOEXEC, NULL)
fi
if test X"$with_selinux" = X"no"; then
    SUDO_DEFINE_UNQUOTED(_PATH_SUDO_SESH, NULL)
fi
if test X"$enable_shared" = X"no"; then
    SUDO_DEFINE_UNQUOTED(_PATH_SUDO_PLUGIN_DIR, NULL)
fi

dnl
dnl Add -R options to LDFLAGS, etc.
dnl
if test X"$LDFLAGS_R" != X""; then
    LDFLAGS="$LDFLAGS $LDFLAGS_R"
fi
if test X"$SUDOERS_LDFLAGS_R" != X""; then
    SUDOERS_LDFLAGS="$SUDOERS_LDFLAGS $SUDOERS_LDFLAGS_R"
fi
if test X"$ZLIB_R" != X""; then
    ZLIB="$ZLIB_R $ZLIB"
fi

dnl
dnl Override default configure dirs for the Makefile
dnl
if test X"$prefix" = X"NONE"; then
    test "$mandir" = '${datarootdir}/man' && mandir='$(prefix)/man'
else
    test "$mandir" = '${datarootdir}/man' && mandir='$(datarootdir)/man'
fi
test "$bindir" = '${exec_prefix}/bin' && bindir='$(exec_prefix)/bin'
test "$sbindir" = '${exec_prefix}/sbin' && sbindir='$(exec_prefix)/sbin'
test "$libexecdir" = '${exec_prefix}/libexec' && libexecdir='$(exec_prefix)/libexec'
test "$includedir" = '${prefix}/include' && includedir='$(prefix)/include'
test "$datarootdir" = '${prefix}/share' && datarootdir='$(prefix)/share'
test "$docdir" = '${datarootdir}/doc/${PACKAGE_TARNAME}' && docdir='$(datarootdir)/doc/$(PACKAGE_TARNAME)'
test "$localedir" = '${datarootdir}/locale' && localedir='$(datarootdir)/locale'
test "$localstatedir" = '${prefix}/var' && localstatedir='$(prefix)/var'
test "$sysconfdir" = '${prefix}/etc' && sysconfdir='/etc'

dnl
dnl Substitute into the Makefile and man pages
dnl
if test X"$INIT_SCRIPT" != X""; then
    AC_CONFIG_FILES([init.d/$INIT_SCRIPT])
elif test X"$TMPFILES_D" != X""; then
    AC_CONFIG_FILES([init.d/sudo.conf])
fi
AC_CONFIG_FILES([Makefile doc/Makefile examples/Makefile include/Makefile lib/util/Makefile lib/util/util.exp src/sudo_usage.h src/Makefile plugins/sample/Makefile plugins/group_file/Makefile plugins/system_group/Makefile plugins/sudoers/Makefile plugins/sudoers/sudoers])
AC_OUTPUT

dnl
dnl Spew any text the user needs to know about
dnl
if test "$with_pam" = "yes"; then
    case $host_os in
	hpux*)
	    if test -f /usr/lib/security/libpam_hpsec.so.1; then
		AC_MSG_NOTICE([You may wish to add the following line to /etc/pam.conf])
		AC_MSG_NOTICE([sudo session required libpam_hpsec.so.1 bypass_umask bypass_last_login])
	    fi
	    ;;
	linux*)
	    AC_MSG_NOTICE([You will need to customize examples/pam.conf and install it as /etc/pam.d/sudo])
	    ;;
    esac
fi
dnl
dnl Warn user if they may need to clear rundir manually.
dnl
case "$rundir" in
    /var/run*)
	clear_rundir=0
	;;
    *)
	clear_rundir=1
	;;
esac
if test $clear_rundir -eq 1; then
    AC_MSG_NOTICE([Warning: the $rundir/ts directory must be cleared at boot time.])
    AC_MSG_NOTICE([         You may need to create a startup item to do this.])
fi

dnl
dnl Autoheader templates
dnl
AH_TEMPLATE(CLASSIC_INSULTS, [Define to 1 if you want the insults from the "classic" version sudo.])
AH_TEMPLATE(CSOPS_INSULTS, [Define to 1 if you want insults culled from the twisted minds of CSOps.])
AH_TEMPLATE(DONT_LEAK_PATH_INFO, [Define to 1 if you want sudo to display "command not allowed" instead of "command not found" when a command cannot be found.])
AH_TEMPLATE(ENV_DEBUG, [Define to 1 to enable environment function debugging.])
AH_TEMPLATE(ENV_EDITOR, [Define to 1 if you want visudo to honor the EDITOR and VISUAL env variables.])
AH_TEMPLATE(FQDN, [Define to 1 if you want to require fully qualified hosts in sudoers.])
AH_TEMPLATE(ENV_RESET, [Define to 1 to enable environment resetting by default.])
AH_TEMPLATE(GOONS_INSULTS, [Define to 1 if you want insults from the "Goon Show".])
AH_TEMPLATE(HAL_INSULTS, [Define to 1 if you want 2001-like insults.])
AH_TEMPLATE(HAVE_AFS, [Define to 1 if you use AFS.])
AH_TEMPLATE(HAVE_AIXAUTH, [Define to 1 if you use AIX general authentication.])
AH_TEMPLATE(HAVE_BSD_AUTH_H, [Define to 1 if you use BSD authentication.])
AH_TEMPLATE(HAVE_BSM_AUDIT, [Define to 1 to enable BSM audit support.])
AH_TEMPLATE(HAVE_DCE, [Define to 1 if you use OSF DCE.])
AH_TEMPLATE(HAVE_DD_FD, [Define to 1 if your `DIR' contains dd_fd.])
AH_TEMPLATE(HAVE_DIRFD, [Define to 1 if you have the `dirfd' function or macro.])
AH_TEMPLATE(HAVE_DISPCRYPT, [Define to 1 if you have the `dispcrypt' function.])
AH_TEMPLATE(HAVE_DLOPEN, [Define to 1 if you have the `dlopen' function.])
AH_TEMPLATE(HAVE_FCNTL_CLOSEM, [Define to 1 if your system has the F_CLOSEM fcntl.])
AH_TEMPLATE(HAVE_FNMATCH, [Define to 1 if you have the `fnmatch' function.])
AH_TEMPLATE(HAVE_FWTK, [Define to 1 if you use the FWTK authsrv daemon.])
AH_TEMPLATE(HAVE_GETPRPWNAM, [Define to 1 if you have the `getprpwnam' function.  (SecureWare-style shadow passwords).])
AH_TEMPLATE(HAVE_GETPWNAM_SHADOW, [Define to 1 if you have the `getpwnam_shadow' function.])
AH_TEMPLATE(HAVE_GETSPNAM, [Define to 1 if you have the `getspnam' function (SVR4-style shadow passwords).])
AH_TEMPLATE(HAVE_GSS_KRB5_CCACHE_NAME, [Define to 1 if you have the `gss_krb5_ccache_name' function.])
AH_TEMPLATE(HAVE_HEIMDAL, [Define to 1 if your Kerberos is Heimdal.])
AH_TEMPLATE(HAVE_INET_NTOP, [Define to 1 if you have the `inet_ntop' function.])
AH_TEMPLATE(HAVE_INET_PTON, [Define to 1 if you have the `inet_pton' function.])
AH_TEMPLATE(HAVE_ISCOMSEC, [Define to 1 if you have the `iscomsec' function. (HP-UX >= 10.x check for shadow enabled).])
AH_TEMPLATE(HAVE_KERB5, [Define to 1 if you use Kerberos V.])
AH_TEMPLATE(HAVE_KRB5_GET_INIT_CREDS_OPT_ALLOC, [Define to 1 if you have the `krb5_get_init_creds_opt_alloc' function.])
AH_TEMPLATE(HAVE_KRB5_GET_INIT_CREDS_OPT_FREE_TWO_ARGS, [Define to 1 if your `krb5_get_init_creds_opt_free' function takes two arguments.])
AH_TEMPLATE(HAVE_KRB5_INIT_SECURE_CONTEXT, [Define to 1 if you have the `krb5_init_secure_context' function.])
AH_TEMPLATE(HAVE_KRB5_VERIFY_USER, [Define to 1 if you have the `krb5_verify_user' function.])
AH_TEMPLATE(HAVE_LBER_H, [Define to 1 if your LDAP needs <lber.h>. (OpenLDAP does not).])
AH_TEMPLATE(HAVE_LDAP, [Define to 1 if you use LDAP for sudoers.])
AH_TEMPLATE(HAVE_LIBINTL_H, [Define to 1 if you have the <libintl.h> header file.])
AH_TEMPLATE(HAVE_LINUX_AUDIT, [Define to 1 to enable Linux audit support.])
AH_TEMPLATE(HAVE_SSSD, [Define to 1 to enable SSSD support.])
AH_TEMPLATE(HAVE_OPIE, [Define to 1 if you use NRL OPIE.])
AH_TEMPLATE(HAVE_OPTRESET, [Define to 1 if you have the `optreset' symbol.])
AH_TEMPLATE(HAVE_PAM, [Define to 1 if you use PAM authentication.])
AH_TEMPLATE(HAVE_PAM_LOGIN, [Define to 1 if you use a specific PAM session for sudo -i.])
AH_TEMPLATE(HAVE_PROJECT_H, [Define to 1 if you have the <project.h> header file.])
AH_TEMPLATE(HAVE_SECURID, [Define to 1 if you use SecurID for authentication.])
AH_TEMPLATE(HAVE_SELINUX, [Define to 1 to enable SELinux RBAC support.])
AH_TEMPLATE(HAVE_SETKEYCREATECON, [Define to 1 if you have the `setkeycreatecon' function.])
AH_TEMPLATE(HAVE_SHL_LOAD, [Define to 1 if you have the `shl_load' function.])
AH_TEMPLATE(HAVE_SKEY, [Define to 1 if you use S/Key.])
AH_TEMPLATE(HAVE_SKEYACCESS, [Define to 1 if your S/Key library has skeyaccess().])
AH_TEMPLATE(HAVE_RFC1938_SKEYCHALLENGE, [Define to 1 if the skeychallenge() function is RFC1938-compliant and takes 4 arguments.])
AH_TEMPLATE(HAVE_SOLARIS_AUDIT, [Define to 1 to enable Solaris audit support.])
AH_TEMPLATE(HAVE_ST__TIM, [Define to 1 if your struct stat uses an st__tim union.])
AH_TEMPLATE(HAVE_ST_MTIM, [Define to 1 if your struct stat has an st_mtim member.])
AH_TEMPLATE(HAVE_ST_MTIMESPEC, [Define to 1 if your struct stat has an st_mtimespec member.])
AH_TEMPLATE(HAVE___PROGNAME, [Define to 1 if your crt0.o defines the __progname symbol for you.])
AH_TEMPLATE(HOST_IN_LOG, [Define to 1 if you want the hostname to be entered into the log file.])
AH_TEMPLATE(IGNORE_DOT_PATH, [Define to 1 if you want to ignore '.' and empty PATH elements.])
AH_TEMPLATE(LOGGING, [Define to SLOG_SYSLOG, SLOG_FILE, or SLOG_BOTH.])
AH_TEMPLATE(LONG_OTP_PROMPT, [Define to 1 if you want a two line OTP (S/Key or OPIE) prompt.])
AH_TEMPLATE(NO_AUTHENTICATION, [Define to 1 if you don't want sudo to prompt for a password by default.])
AH_TEMPLATE(NO_LEAKS, [Define to 1 if you want sudo to free up memory before exiting.])
AH_TEMPLATE(NO_LECTURE, [Define to 1 if you don't want users to get the lecture the first they user sudo.])
AH_TEMPLATE(NO_PAM_SESSION, [Define to 1 if you don't want to use sudo's PAM session support.])
AH_TEMPLATE(NO_ROOT_MAILER, [Define to avoid runing the mailer as root.])
AH_TEMPLATE(NO_ROOT_SUDO, [Define to 1 if root should not be allowed to use sudo.])
AH_TEMPLATE(TIMESTAMP_TYPE, [Define to global, ppid or tty to set the default timestamp record type.])
AH_TEMPLATE(PC_INSULTS, [Define to 1 to replace politically incorrect insults with less offensive ones.])
AH_TEMPLATE(PREFER_PORTABLE_GETCWD, [Define to 1 to enable replacement getcwd if system getcwd is broken.])
AH_TEMPLATE(SECURE_PATH, [A colon-separated list of directories to override the user's PATH with.])
AH_TEMPLATE(SEND_MAIL_WHEN_NOT_OK, [Define to 1 to send mail when the user is not allowed to run a command.])
AH_TEMPLATE(SEND_MAIL_WHEN_NO_HOST, [Define to 1 to send mail when the user is not allowed to run sudo on this host.])
AH_TEMPLATE(SEND_MAIL_WHEN_NO_USER, [Define to 1 to send mail when the user is not in the sudoers file.])
AH_TEMPLATE(SHELL_IF_NO_ARGS, [Define to 1 if you want sudo to start a shell if given no arguments.])
AH_TEMPLATE(SHELL_SETS_HOME, [Define to 1 if you want sudo to set $HOME in shell mode.])
AH_TEMPLATE(STATIC_SUDOERS_PLUGIN, [Define to 1 to compile the sudoers plugin statically into the sudo binary.])
AH_TEMPLATE(STUB_LOAD_INTERFACES, [Define to 1 if the code in interfaces.c does not compile for you.])
AH_TEMPLATE(UMASK_OVERRIDE, [Define to 1 to use the umask specified in sudoers even when it is less restrictive than the invoking user's.])
AH_TEMPLATE(USE_ADMIN_FLAG, [Define to 1 if you want to create ~/.sudo_as_admin_successful if the user is in the admin group the first time they run sudo.])
AH_TEMPLATE(USE_INSULTS, [Define to 1 if you want to insult the user for entering an incorrect password.])
AH_TEMPLATE(USE_STOW, [Define to 1 if you use GNU stow packaging.])
AH_TEMPLATE(WITHOUT_PASSWD, [Define to avoid using the passwd/shadow file for authentication.])
AH_TEMPLATE(clockid_t, [Define to `int' if <time.h> does not define.])
AH_TEMPLATE(sig_atomic_t, [Define to `int' if <signal.h> does not define.])
AH_TEMPLATE(socklen_t, [Define to `unsigned int' if <sys/socket.h> doesn't define.])
AH_TEMPLATE(HAVE_STRUCT_UTMP_UT_EXIT, [Define to 1 if `ut_exit' is a member of `struct utmp'.])
AH_TEMPLATE(HAVE_STRUCT_UTMPX_UT_EXIT, [Define to 1 if `ut_exit' is a member of `struct utmpx'.])
AH_TEMPLATE(HAVE___FUNC__, [Define to 1 if the compiler supports the C99 __func__ variable.])
AH_TEMPLATE(HAVE___INTERPOSE, [Define to 1 if you have dyld with __interpose attribute support.])
AH_TEMPLATE(SUDO_KRB5_INSTANCE, [An instance string to append to the username (separated by a slash) for Kerberos V authentication.])
AH_TEMPLATE(RTLD_PRELOAD_VAR, [The environment variable that controls preloading of dynamic objects.])
AH_TEMPLATE(RTLD_PRELOAD_ENABLE_VAR, [An extra environment variable that is required to enable preloading (if any).])
AH_TEMPLATE(RTLD_PRELOAD_DELIM, [The delimiter to use when defining multiple preloaded objects.])
AH_TEMPLATE(RTLD_PRELOAD_DEFAULT, [The default value of preloaded objects (if any).])
AH_TEMPLATE(HAVE_DSO_VISIBILITY, [Define to 1 if the compiler supports the __visibility__ attribute.])
AH_TEMPLATE(HAVE_SYS_SIGABBREV, [Define to 1 if your libc has the `sys_sigabbrev' symbol.])
AH_TEMPLATE(HAVE_NSS_SEARCH, [Define to 1 if you have the `nss_search' function.])
AH_TEMPLATE(HAVE__NSS_INITF_GROUP, [Define to 1 if you have the `_nss_initf_group' function.])
AH_TEMPLATE(HAVE___NSS_INITF_GROUP, [Define to 1 if you have the `__nss_initf_group' function.])
AH_TEMPLATE(HAVE__NSS_XBYY_BUF_ALLOC, [Define to 1 if you have the `_nss_XbyY_buf_alloc' function.])
AH_TEMPLATE(HAVE___NSS_XBYY_BUF_ALLOC, [Define to 1 if you have the `__nss_XbyY_buf_alloc' function.])
AH_TEMPLATE(NEED_RESOLV_H, [Define to 1 if resolv.h must be included to get the `inet_ntop' or `inet_pton' function prototypes.])
AH_TEMPLATE(HAVE_STRNLEN, [Define to 1 if you have the `strnlen' function.])
AH_TEMPLATE(PAM_SUN_CODEBASE, [Define to 1 if your system uses a Solaris-derived PAM and not Linux-PAM or OpenPAM.])

dnl
dnl Bits to copy verbatim into config.h.in
dnl
AH_TOP([#ifndef SUDO_CONFIG_H
#define SUDO_CONFIG_H])

AH_BOTTOM([/* BSD compatibility on some SVR4 systems. */
#ifdef __svr4__
# define BSD_COMP
#endif

/* Enable BSD extensions on systems that have them.  */
#ifndef _BSD_SOURCE
# undef _BSD_SOURCE
#endif

/* Enable BSD types on IRIX.  */
#ifndef _BSD_TYPES
# undef _BSD_TYPES
#endif

/* Enable Linux-compatible extensions on AIX.  */
#ifndef _LINUX_SOURCE_COMPAT
# undef _LINUX_SOURCE_COMPAT
#endif

/* Enable prototypes in GCC fixed includes on older systems.  */
#ifndef __USE_FIXED_PROTOTYPES__
# undef __USE_FIXED_PROTOTYPES__
#endif

/* Enable XPG4v2 extensions to POSIX, needed for MSG_WAITALL on older HP-UX.  */
#ifndef _XOPEN_SOURCE_EXTENDED
# undef _XOPEN_SOURCE_EXTENDED
#endif

/* Enable reentrant versions of the standard C API (obsolete).  */
#ifndef _REENTRANT
# undef _REENTRANT
#endif

/* Enable "safer" versions of the standard C API (ISO C11).  */
#ifndef __STDC_WANT_LIB_EXT1__
# undef __STDC_WANT_LIB_EXT1__
#endif

/* Prevent static analyzers from genering bogus memory leak warnings. */
#if defined(__COVERITY__) && !defined(NO_LEAKS)
# define NO_LEAKS
#endif

#endif /* SUDO_CONFIG_H */])
