Imported Upstream version 1.8.6p8
[debian/sudo] / configure.in
index 9a818ff19a01da99d59a5e0fa00aee77a946c2ec..2b3ce5302668f6a1d7337c1c3fe67bdfd15e09d9 100644 (file)
 dnl
 dnl Process this file with GNU autoconf to produce a configure script.
-dnl $Sudo: configure.in,v 1.349 2002/04/18 15:41:30 millert Exp $
 dnl
-dnl Copyright (c) 1994-1996,1998-2002 Todd C. Miller <Todd.Miller@courtesan.com>
+dnl Copyright (c) 1994-1996,1998-2013 Todd C. Miller <Todd.Miller@courtesan.com>
 dnl
-AC_INIT(sudo, 1.6.6)
-AC_CONFIG_HEADER(config.h pathnames.h)
+AC_INIT([sudo], [1.8.6p8], [http://www.sudo.ws/bugs/], [sudo])
+AC_CONFIG_HEADER([config.h pathnames.h])
 dnl
-dnl This won't work before AC_INIT()
+dnl Note: this must come after AC_INIT
 dnl
-echo "Configuring Sudo version 1.6.6"
+AC_MSG_NOTICE([Configuring Sudo version $PACKAGE_VERSION])
 dnl
 dnl Variables that get substituted in the Makefile and man pages
 dnl
-AC_SUBST(CFLAGS)dnl
-AC_SUBST(PROGS)dnl
-AC_SUBST(CPPFLAGS)dnl
-AC_SUBST(LDFLAGS)dnl
-AC_SUBST(SUDO_LDFLAGS)dnl
-AC_SUBST(LIBS)dnl
-AC_SUBST(SUDO_LIBS)dnl
-AC_SUBST(NET_LIBS)dnl
-AC_SUBST(AFS_LIBS)dnl
-AC_SUBST(OSDEFS)dnl
-AC_SUBST(AUTH_OBJS)dnl
-AC_SUBST(LIBOBJS)dnl
-AC_SUBST(MANTYPE)dnl
-AC_SUBST(MAN_POSTINSTALL)dnl
-AC_SUBST(SUDOERS_MODE)dnl
-AC_SUBST(SUDOERS_UID)dnl
-AC_SUBST(SUDOERS_GID)dnl
-AC_SUBST(DEV)
-AC_SUBST(mansectsu)
-AC_SUBST(mansectform)
-AC_SUBST(mansrcdir)
+AC_SUBST([HAVE_BSM_AUDIT])
+AC_SUBST([SHELL])
+AC_SUBST([LIBTOOL])
+AC_SUBST([CFLAGS])
+AC_SUBST([PROGS])
+AC_SUBST([CPPFLAGS])
+AC_SUBST([LDFLAGS])
+AC_SUBST([SUDOERS_LDFLAGS])
+AC_SUBST([LT_LDFLAGS])
+AC_SUBST([LT_LDMAP])
+AC_SUBST([LT_LDOPT])
+AC_SUBST([LT_LDDEP])
+AC_SUBST([LT_LDEXPORTS])
+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([NET_LIBS])
+AC_SUBST([AFS_LIBS])
+AC_SUBST([REPLAY_LIBS])
+AC_SUBST([GETGROUPS_LIB])
+AC_SUBST([OSDEFS])
+AC_SUBST([AUTH_OBJS])
+AC_SUBST([MANTYPE])
+AC_SUBST([MANDIRTYPE])
+AC_SUBST([MANCOMPRESS])
+AC_SUBST([MANCOMPRESSEXT])
+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([PLUGINDIR])
+AC_SUBST([SOEXT])
+AC_SUBST([noexec_file])
+AC_SUBST([INSTALL_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([ac_config_libobj_dir])
+AC_SUBST([CONFIGURE_ARGS])
+AC_SUBST([LIBDL])
+AC_SUBST([LT_STATIC])
+AC_SUBST([LIBINTL])
+AC_SUBST([SUDO_NLS])
+AC_SUBST([COMPAT_TEST_PROGS])
+AC_SUBST([CROSS_COMPILING])
+AC_SUBST([PIE_LDFLAGS])
+AC_SUBST([PIE_CFLAGS])
+AC_SUBST([SSP_LDFLAGS])
+AC_SUBST([SSP_CFLAGS])
+AC_SUBST([NO_VIZ])
 dnl
 dnl Variables that get substituted in docs (not overridden by environment)
 dnl
-AC_SUBST(timedir)dnl initial value from SUDO_TIMEDIR
-AC_SUBST(timeout)
-AC_SUBST(password_timeout)
-AC_SUBST(sudo_umask)
-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(passwd_tries)
-AC_SUBST(tty_tickets)
-AC_SUBST(insults)
-dnl
-dnl Initial values for above
-dnl
+AC_SUBST([iolog_dir])dnl real initial value from SUDO_IO_LOGDIR
+AC_SUBST([timedir])dnl real initial value from SUDO_TIMEDIR
+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([tty_tickets])
+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])
+#
+# Begin initial values for man page substitution
+#
+iolog_dir=/var/log/sudo-io
+timedir=/var/adm/sudo
 timeout=5
 password_timeout=5
 sudo_umask=0022
+umask_override=off
 passprompt="Password:"
 long_otp_prompt=off
-lecture=on
-logfac=local2
+lecture=once
+logfac=auth
 goodpri=notice
 badpri=alert
 loglen=80
@@ -79,56 +141,97 @@ mail_no_user=on
 mail_no_host=off
 mail_no_perms=off
 mailto=root
-mailsub='*** SECURITY information for %h ***'
-badpass_message='Sorry, try again.'
+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
-tty_tickets=off
+tty_tickets=on
 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_noexec.so
+nsswitch_conf=/etc/nsswitch.conf
+secure_path="not set"
+#
+# End initial values for man page substitution
+#
 dnl
 dnl Initial values for Makefile variables listed above
 dnl May be overridden by environment variables..
 dnl
-PROGS="sudo visudo"
-test -n "$MANTYPE" || MANTYPE="man"
-test -n "$mansrcdir" || mansrcdir="."
-test -n "$SUDOERS_MODE" || SUDOERS_MODE=0440
-test -n "$SUDOERS_UID" || SUDOERS_UID=0
-test -n "$SUDOERS_GID" || SUDOERS_GID=0
-DEV="#"
+INSTALL_NOEXEC=
+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=
+ZLIB=
+ZLIB_SRC=
+AUTH_OBJS=
+AUTH_REG=
+AUTH_EXCL=
+AUTH_EXCL_DEF=
+AUTH_DEF=passwd
+SUDO_NLS=disabled
+LT_LDEXPORTS="-export-symbols \$(shlib_exp)"
+LT_LDDEP="\$(shlib_exp)"
+NO_VIZ="-DNO_VIZ"
 
 dnl
 dnl Other vaiables
 dnl
 CHECKSHADOW=true
-CHECKSIA=true
+shadow_defs=
+shadow_funcs=
+shadow_libs=
+shadow_libs_optional=
+CONFIGURE_ARGS="$@"
 
 dnl
-dnl Override default configure dirs...
+dnl LD_PRELOAD equivalents
 dnl
-test "$mandir" = '${prefix}/man' && mandir='$(prefix)/man'
-test "$bindir" = '${exec_prefix}/bin' && bindir='$(exec_prefix)/bin'
-test "$sbindir" = '${exec_prefix}/sbin' && sbindir='$(exec_prefix)/sbin'
-test "$sysconfdir" = '${prefix}/etc' && sysconfdir='/etc'
+RTLD_PRELOAD_VAR="LD_PRELOAD"
+RTLD_PRELOAD_ENABLE_VAR=
+RTLD_PRELOAD_DELIM=":"
+RTLD_PRELOAD_DEFAULT=
+
+dnl
+dnl libc replacement functions live in compat
+dnl
+AC_CONFIG_LIBOBJ_DIR(compat)
 
 dnl
 dnl Deprecated --with options (these all warn or generate an error)
 dnl
 
-AC_ARG_WITH(otp-only, [  --with-otp-only         deprecated],
+AC_ARG_WITH(otp-only, [AS_HELP_STRING([--with-otp-only], [deprecated])],
 [case $with_otp_only in
-    yes)       with_passwd=no
-               AC_DEFINE(WITHOUT_PASSWD, 1, [Define to avoid using the passwd/shadow file for authentication.])
-               AC_MSG_WARN([--with-otp-only option deprecated, treating as --without-passwd])
+    yes)       with_passwd="no"
+               AC_MSG_NOTICE([--with-otp-only option deprecated, treating as --without-passwd])
                ;;
 esac])
 
-AC_ARG_WITH(alertmail, [  --with-alertmail        deprecated],
+AC_ARG_WITH(alertmail, [AS_HELP_STRING([--with-alertmail], [deprecated])],
 [case $with_alertmail in
     *)         with_mailto="$with_alertmail"
-               AC_MSG_WARN([--with-alertmail option deprecated, treating as --mailto])
+               AC_MSG_NOTICE([--with-alertmail option deprecated, treating as --mailto])
                ;;
 esac])
 
@@ -136,145 +239,186 @@ dnl
 dnl Options for --with
 dnl
 
-AC_ARG_WITH(CC, [  --with-CC               C compiler to use],
+AC_ARG_WITH(devel, [AS_HELP_STRING([--with-devel], [add development options])],
+[case $with_devel in
+    yes)       AC_MSG_NOTICE([Setting up for development: -Wall, flex, yacc])
+               OSDEFS="${OSDEFS} -DSUDO_DEVEL"
+               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
-    yes)       AC_MSG_ERROR(["must give --with-CC an argument."])
+    *)         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], [pass -R flag in addition to -L for lib paths])],
+[case $with_rpath in
+    yes|no)    ;;
+    *)         AC_MSG_ERROR(["--with-rpath does not take an argument."])
+               ;;
+esac])
+
+AC_ARG_WITH(blibpath, [AS_HELP_STRING([--with-blibpath[=PATH]], [pass -blibpath flag to ld for additional lib paths])],
+[case $with_blibpath in
+    yes|no)    ;;
+    *)         AC_MSG_NOTICE([will pass -blibpath:${with_blibpath} to the loader.])
+               ;;
+esac])
+
+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(["illegal argument: --without-CC."])
+    no)                ;;
+    *)         AC_MSG_ERROR(["--with-linux-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)
                ;;
-    *)         CC=$with_CC
+    no)                ;;
+    *)         AC_MSG_ERROR(["--with-sssd does not take an argument."])
                ;;
 esac])
 
-AC_ARG_WITH(incpath, [  --with-incpath          additional places to look for include files],
-[case $with_incpath in  
+AC_ARG_WITH(sssd-lib, [AS_HELP_STRING([--with-sssd-lib], [path to the SSSD library])])
+sssd_lib="\"LIBDIR\""
+test -n "$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."])
                ;;
-    *)         echo "Adding ${with_incpath} to CPPFLAGS"
+    *)         AC_MSG_NOTICE([Adding ${with_incpath} to CPPFLAGS])
                for i in ${with_incpath}; do
                    CPPFLAGS="${CPPFLAGS} -I${i}"
                done
                ;;
 esac])
 
-AC_ARG_WITH(libpath, [  --with-libpath          additional places to look for libraries],
-[case $with_libpath in  
+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."])
                ;;
-    *)         echo "Adding ${with_libpath} to LDFLAGS"
-               for i in ${with_libpath}; do
-                   LDFLAGS="${LDFLAGS} -L${i}"
-               done
+    *)         AC_MSG_NOTICE([Adding ${with_libpath} to LDFLAGS])
                ;;
 esac])
 
-AC_ARG_WITH(libraries, [  --with-libraries        additional libraries to link with],
-[case $with_libraries in  
+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."])
                ;;
-    *)         echo "Adding ${with_libraries} to LIBS"
-               for i in ${with_libraries}; do
-                   case $i in
-                       -l*)    ;;
-                       *.a)    ;;
-                       *.o)    ;;
-                       *)      i="-l${i}";;
-                   esac
-                   LIBS="${LIBS} ${i}"
-               done
-               ;;
-esac])
-
-AC_ARG_WITH(devel, [  --with-devel            add developement options],
-[case $with_devel in  
-    yes)       echo 'Setting up for developement: -Wall, flex, yacc'
-               PROGS="${PROGS} testsudoers"
-               OSDEFS="${OSDEFS} -DSUDO_DEVEL"
-               DEV=""
-               ;;
-    no)                ;;
-    *)         echo "Ignoring unknown argument to --with-devel: $with_devel"
+    *)         AC_MSG_NOTICE([Adding ${with_libraries} to LIBS])
                ;;
 esac])
 
-AC_ARG_WITH(efence, [  --with-efence           link with -lefence for malloc() debugging],
-[case $with_efence in  
-    yes)       echo 'Sudo will link with -lefence (Electric Fence)'
+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
-                   LDFLAGS="${LDFLAGS} -L/usr/local/lib"
+                   with_libpath="${with_libpath} /usr/local/lib"
                fi
                ;;
     no)                ;;
-    *)         echo "Ignoring unknown argument to --with-efence: $with_efence"
+    *)         AC_MSG_WARN([Ignoring unknown argument to --with-efence: $with_efence])
                ;;
 esac])
 
-AC_ARG_WITH(csops, [  --with-csops            add CSOps standard options],
-[case $with_csops in  
-    yes)       echo 'Adding CSOps standard options'
+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)                ;;
-    *)         echo "Ignoring unknown argument to --with-csops: $with_csops"
+    *)         AC_MSG_WARN([Ignoring unknown argument to --with-csops: $with_csops])
                ;;
 esac])
 
-AC_ARG_WITH(passwd, [  --without-passwd        don't use passwd/shadow file for authentication],
+AC_ARG_WITH(passwd, [AS_HELP_STRING([--without-passwd], [don't use passwd/shadow file for authentication])],
 [case $with_passwd in
-    yes)       ;;
-    no)                AC_DEFINE(WITHOUT_PASSWD)
-               AC_MSG_CHECKING(whether to use shadow/passwd file authentication)
-               AC_MSG_RESULT(no)
+    yes|no)    AC_MSG_CHECKING(whether to use shadow/passwd file authentication)
+               AC_MSG_RESULT($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, [  --with-skey             enable S/Key support ],
+AC_ARG_WITH(skey, [AS_HELP_STRING([--with-skey[=DIR]], [enable S/Key support ])],
 [case $with_skey in
-    yes)       if test -n "$with_opie"; then
-                   AC_MSG_ERROR(["cannot use both S/Key and OPIE"])
-               fi
-               AC_DEFINE(HAVE_SKEY, 1, [Define if you use S/Key.])
+    no)                ;;
+    *)         AC_DEFINE(HAVE_SKEY)
                AC_MSG_CHECKING(whether to try S/Key authentication)
                AC_MSG_RESULT(yes)
-               AUTH_OBJS="${AUTH_OBJS} rfc1938.o"
-               ;;
-    no)                ;;
-    *)         echo "Ignoring unknown argument to --with-skey: $with_skey"
+               AUTH_REG="$AUTH_REG S/Key"
                ;;
 esac])
 
-AC_ARG_WITH(opie, [  --with-opie             enable OPIE support ],
+AC_ARG_WITH(opie, [AS_HELP_STRING([--with-opie[=DIR]], [enable OPIE support ])],
 [case $with_opie in
-    yes)       if test -n "$with_skey"; then
-                   AC_MSG_ERROR(["cannot use both S/Key and OPIE"])
-               fi
-               AC_DEFINE(HAVE_OPIE, 1, [Define if you use NRL OPIE.])
+    no)                ;;
+    *)         AC_DEFINE(HAVE_OPIE)
                AC_MSG_CHECKING(whether to try NRL OPIE authentication)
                AC_MSG_RESULT(yes)
-               AUTH_OBJS="${AUTH_OBJS} rfc1938.o"
-               ;;
-    no)                ;;
-    *)         echo "Ignoring unknown argument to --with-opie: $with_opie"
+               AUTH_REG="$AUTH_REG NRL_OPIE"
                ;;
 esac])
 
-AC_ARG_WITH(long-otp-prompt, [  --with-long-otp-prompt  use a two line OTP (skey/opie) prompt],
+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, 1, [Define if you want a two line OTP (S/Key or OPIE) prompt.])
+    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
@@ -285,144 +429,123 @@ AC_ARG_WITH(long-otp-prompt, [  --with-long-otp-prompt  use a two line OTP (skey
                ;;
 esac])
 
-AC_ARG_WITH(SecurID, [  --with-SecurID          enable SecurID support],
+AC_ARG_WITH(SecurID, [AS_HELP_STRING([--with-SecurID[[=DIR]]], [enable SecurID support])],
 [case $with_SecurID in
     no)                ;;
-    *)         AC_DEFINE(HAVE_SECURID, 1, [Define if you use SecurID.])
+    *)         AC_DEFINE(HAVE_SECURID)
                AC_MSG_CHECKING(whether to use SecurID for authentication)
                AC_MSG_RESULT(yes)
-               with_passwd=no
-               AUTH_OBJS="securid.o"
+               AUTH_EXCL="$AUTH_EXCL SecurID"
                ;;
 esac])
 
-AC_ARG_WITH(fwtk, [  --with-fwtk             enable FWTK AuthSRV support],
+AC_ARG_WITH(fwtk, [AS_HELP_STRING([--with-fwtk[[=DIR]]], [enable FWTK AuthSRV support])],
 [case $with_fwtk in
     no)                ;;
-    *)         AC_DEFINE(HAVE_FWTK, 1, [Define if you use the FWTK authsrv daemon.])
+    *)         AC_DEFINE(HAVE_FWTK)
                AC_MSG_CHECKING(whether to use FWTK AuthSRV for authentication)
                AC_MSG_RESULT(yes)
-               with_passwd=no
-               AUTH_OBJS="fwtk.o"
-               if test "$with_fwtk" != "yes"; then
-                   SUDO_LDFLAGS="${SUDO_LDFLAGS} -L${with_fwtk}"
-                   CPPFLAGS="${CPPFLAGS} -I${with_fwtk}"
-                   with_fwtk=yes
-               fi
-               ;;
-esac])
-
-AC_ARG_WITH(kerb4, [  --with-kerb4            enable kerberos v4 support],
-[case $with_kerb4 in
-    yes)       AC_MSG_CHECKING(whether to try Kerberos 4 authentication)
-               AC_MSG_RESULT(yes)
-               ;;
-    no)                ;;
-    *)         AC_MSG_ERROR(["--with-kerb4 does not take an argument."])
+               AUTH_EXCL="$AUTH_EXCL FWTK"
                ;;
 esac])
 
-AC_ARG_WITH(kerb5, [  --with-kerb5            enable kerberos v5 support],
+AC_ARG_WITH(kerb5, [AS_HELP_STRING([--with-kerb5[[=DIR]]], [enable Kerberos V support])],
 [case $with_kerb5 in
-    yes)       AC_MSG_CHECKING(whether to try Kerberos 5 authentication)
-               AC_MSG_RESULT(yes)
-               ;;
     no)                ;;
-    *)         AC_MSG_ERROR(["--with-kerb5 does not take an argument."])
+    *)         AC_MSG_CHECKING(whether to try Kerberos V authentication)
+               AC_MSG_RESULT(yes)
+               AUTH_REG="$AUTH_REG kerb5"
                ;;
 esac])
 
-AC_ARG_WITH(authenticate, [  --with-authenticate     enable AIX general authentication support],
-[case $with_authenticate in
-    yes)       AC_DEFINE(HAVE_AUTHENTICATE, 1, [Define if you use AIX general authentication.])
-               AC_MSG_CHECKING(whether to use AIX general authentication)
-               AC_MSG_RESULT(yes)
-               with_passwd=no
-               AUTH_OBJS="aix_auth.o"
-               ;;
+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-authenticate does not take an argument."])
+    *)         AC_MSG_ERROR(["--with-aixauth does not take an argument."])
                ;;
 esac])
 
-AC_ARG_WITH(pam, [  --with-pam              enable PAM support],
+AC_ARG_WITH(pam, [AS_HELP_STRING([--with-pam], [enable PAM support])],
 [case $with_pam in
-    yes)       AC_DEFINE(HAVE_PAM, 1, [Define if you use PAM.])
-               AC_MSG_CHECKING(whether to use PAM authentication)
-               AC_MSG_RESULT(yes)
-               with_passwd=no
-               AUTH_OBJS="pam.o"
-               ;;
+    yes)       AUTH_EXCL="$AUTH_EXCL PAM";;
     no)                ;;
     *)         AC_MSG_ERROR(["--with-pam does not take an argument."])
                ;;
 esac])
 
-AC_ARG_WITH(AFS, [  --with-AFS              enable AFS support],
+AC_ARG_WITH(AFS, [AS_HELP_STRING([--with-AFS], [enable AFS support])],
 [case $with_AFS in
-    yes)       AC_DEFINE(HAVE_AFS, 1, [Define if you use AFS.])
+    yes)       AC_DEFINE(HAVE_AFS)
                AC_MSG_CHECKING(whether to try AFS (kerberos) authentication)
                AC_MSG_RESULT(yes)
-               AUTH_OBJS="${AUTH_OBJS} afs.o"
+               AUTH_REG="$AUTH_REG AFS"
                ;;
     no)                ;;
     *)         AC_MSG_ERROR(["--with-AFS does not take an argument."])
                ;;
 esac])
 
-AC_ARG_WITH(DCE, [  --with-DCE              enable DCE support],
+AC_ARG_WITH(DCE, [AS_HELP_STRING([--with-DCE], [enable DCE support])],
 [case $with_DCE in
-    yes)       AC_DEFINE(HAVE_DCE, 1, [Define if you use OSF DCE.])
+    yes)       AC_DEFINE(HAVE_DCE)
                AC_MSG_CHECKING(whether to try DCE (kerberos) authentication)
                AC_MSG_RESULT(yes)
-               AUTH_OBJS="${AUTH_OBJS} dce.o"
+               AUTH_REG="$AUTH_REG DCE"
                ;;
     no)                ;;
     *)         AC_MSG_ERROR(["--with-DCE does not take an argument."])
                ;;
 esac])
 
-AC_ARG_WITH(logincap, [  --with-logincap         enable BSD login class support],
+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, [  --with-bsdauth          enable BSD authentication support],
+AC_ARG_WITH(bsdauth, [AS_HELP_STRING([--with-bsdauth], [enable BSD authentication support])],
 [case $with_bsdauth in
-    yes)       with_logincap=yes
-               ;;
+    yes)       AUTH_EXCL="$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, [  --without-lecture       don't print lecture for first-time sudoer],
-[case $with_lecture in  
-    yes|short) lecture=on
+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)   lecture=off
+    no|none|never)     lecture=never
                ;;
     *)         AC_MSG_ERROR(["unknown argument to --with-lecture: $with_lecture"])
                ;;
 esac])
-if test "$lecture" = "on"; then
+if test "$lecture" = "once"; then
     AC_MSG_RESULT(yes)
 else
-    AC_DEFINE(NO_LECTURE, 1, [Define if you don't want users to get the lecture the first they user sudo.])
+    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, [  --with-logging          log via syslog, file, or both],
-[case $with_logging in  
+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, [Define to SLOG_SYSLOG, SLOG_FILE, or SLOG_BOTH.])
+    syslog)    AC_DEFINE(LOGGING, SLOG_SYSLOG)
                AC_MSG_RESULT(syslog)
                ;;
     file)      AC_DEFINE(LOGGING, SLOG_FILE)
@@ -435,9 +558,8 @@ AC_ARG_WITH(logging, [  --with-logging          log via syslog, file, or both],
                ;;
 esac], [AC_DEFINE(LOGGING, SLOG_SYSLOG) AC_MSG_RESULT(syslog)])
 
-AC_MSG_CHECKING(which syslog facility sudo should log with)
-AC_ARG_WITH(logfac, [  --with-logfac           syslog facility to log with (default is "local2")],
-[case $with_logfac in  
+AC_ARG_WITH(logfac, [AS_HELP_STRING([--with-logfac], [syslog facility to log with (default is "auth")])],
+[case $with_logfac in
     yes)       AC_MSG_ERROR(["must give --with-logfac an argument."])
                ;;
     no)                AC_MSG_ERROR(["--without-logfac not supported."])
@@ -447,12 +569,10 @@ AC_ARG_WITH(logfac, [  --with-logfac           syslog facility to log with (defa
     *)         AC_MSG_ERROR(["$with_logfac is not a supported syslog facility."])
                ;;
 esac])
-AC_DEFINE_UNQUOTED(LOGFAC, "$logfac", [The syslog facility sudo will use.])
-AC_MSG_RESULT($logfac)
 
 AC_MSG_CHECKING(at which syslog priority to log commands)
-AC_ARG_WITH(goodpri, [  --with-goodpri          syslog priority for commands (def is "notice")],
-[case $with_goodpri in  
+AC_ARG_WITH(goodpri, [AS_HELP_STRING([--with-goodpri], [syslog priority for commands (def is "notice")])],
+[case $with_goodpri in
     yes)       AC_MSG_ERROR(["must give --with-goodpri an argument."])
                ;;
     no)                AC_MSG_ERROR(["--without-goodpri not supported."])
@@ -467,8 +587,8 @@ AC_DEFINE_UNQUOTED(PRI_SUCCESS, "$goodpri", [The syslog priority sudo will use f
 AC_MSG_RESULT($goodpri)
 
 AC_MSG_CHECKING(at which syslog priority to log failures)
-AC_ARG_WITH(badpri, [  --with-badpri           syslog priority for failures (def is "alert")],
-[case $with_badpri in  
+AC_ARG_WITH(badpri, [AS_HELP_STRING([--with-badpri], [syslog priority for failures (def is "alert")])],
+[case $with_badpri in
     yes)       AC_MSG_ERROR(["must give --with-badpri an argument."])
                ;;
     no)                AC_MSG_ERROR(["--without-badpri not supported."])
@@ -480,10 +600,10 @@ AC_ARG_WITH(badpri, [  --with-badpri           syslog priority for failures (def
                ;;
 esac])
 AC_DEFINE_UNQUOTED(PRI_FAILURE, "$badpri", [The syslog priority sudo will use for unsuccessful attempts/errors.])
-AC_MSG_RESULT(badpri)
+AC_MSG_RESULT($badpri)
 
-AC_ARG_WITH(logpath, [  --with-logpath          path to the sudo log file],
-[case $with_logpath in  
+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."])
@@ -491,8 +611,8 @@ AC_ARG_WITH(logpath, [  --with-logpath          path to the sudo log file],
 esac])
 
 AC_MSG_CHECKING(how long a line in the log file should be)
-AC_ARG_WITH(loglen, [  --with-loglen           maximum length of a log file line (default is 80)],
-[case $with_loglen in  
+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."])
@@ -506,8 +626,8 @@ AC_DEFINE_UNQUOTED(MAXLOGFILELEN, $loglen, [The max number of chars per log file
 AC_MSG_RESULT($loglen)
 
 AC_MSG_CHECKING(whether sudo should ignore '.' or '' in \$PATH)
-AC_ARG_WITH(ignore-dot, [  --with-ignore-dot       ignore '.' in the PATH],
-[case $with_ignore_dot in  
+AC_ARG_WITH(ignore-dot, [AS_HELP_STRING([--with-ignore-dot], [ignore '.' in the PATH])],
+[case $with_ignore_dot in
     yes)       ignore_dot=on
                ;;
     no)                ignore_dot=off
@@ -516,15 +636,15 @@ AC_ARG_WITH(ignore-dot, [  --with-ignore-dot       ignore '.' in the PATH],
                ;;
 esac])
 if test "$ignore_dot" = "on"; then
-    AC_DEFINE(IGNORE_DOT_PATH, 1, [Define if you want to ignore '.' and empty \$PATH elements])
+    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, [  --without-mail-if-no-user do not send mail if user not in sudoers],
-[case $with_mail_if_no_user in  
+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 $with_mail_if_no_user in
     yes)       mail_no_user=on
                ;;
     no)                mail_no_user=off
@@ -533,15 +653,15 @@ AC_ARG_WITH(mail-if-no-user, [  --without-mail-if-no-user do not send mail if us
                ;;
 esac])
 if test "$mail_no_user" = "on"; then
-    AC_DEFINE(SEND_MAIL_WHEN_NO_USER, 1, [Define to send mail when the user is not in the sudoers file.])
+    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, [  --with-mail-if-no-host  send mail if user in sudoers but not for this host],
-[case $with_mail_if_no_host in  
+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 $with_mail_if_no_host in
     yes)       mail_no_host=on
                ;;
     no)                mail_no_host=off
@@ -550,15 +670,15 @@ AC_ARG_WITH(mail-if-no-host, [  --with-mail-if-no-host  send mail if user in sud
                ;;
 esac])
 if test "$mail_no_host" = "on"; then
-    AC_DEFINE(SEND_MAIL_WHEN_NO_HOST, 1, [Define to send mail when the user is not not allowed to run sudo on this host.])
+    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, [  --with-mail-if-noperms  send mail if user not allowed to run command],
-[case $with_mail_if_noperms in  
+AC_ARG_WITH(mail-if-noperms, [AS_HELP_STRING([--with-mail-if-noperms], [send mail if user not allowed to run command])],
+[case $with_mail_if_noperms in
     yes)       mail_noperms=on
                ;;
     no)                mail_noperms=off
@@ -567,15 +687,15 @@ AC_ARG_WITH(mail-if-noperms, [  --with-mail-if-noperms  send mail if user not al
                ;;
 esac])
 if test "$mail_noperms" = "on"; then
-    AC_DEFINE(SEND_MAIL_WHEN_NOT_OK, 1, [Define to send mail when the user is not not allowed to run a command.])
+    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, [  --with-mailto           who should get sudo mail (default is "root")],
-[case $with_mailto in  
+AC_ARG_WITH(mailto, [AS_HELP_STRING([--with-mailto], [who should get sudo mail (default is "root")])],
+[case $with_mailto in
     yes)       AC_MSG_ERROR(["must give --with-mailto an argument."])
                ;;
     no)                AC_MSG_ERROR(["--without-mailto not supported."])
@@ -586,11 +706,11 @@ esac])
 AC_DEFINE_UNQUOTED(MAILTO, "$mailto", [The user or email address that sudo mail is sent to.])
 AC_MSG_RESULT([$mailto])
 
-AC_ARG_WITH(mailsubject, [  --with-mailsubject      subject of sudo mail],
-[case $with_mailsubject in  
+AC_ARG_WITH(mailsubject, [AS_HELP_STRING([--with-mailsubject], [subject of sudo mail])],
+[case $with_mailsubject in
     yes)       AC_MSG_ERROR(["must give --with-mailsubject an argument."])
                ;;
-    no)                echo "Sorry, --without-mailsubject not supported."
+    no)                AC_MSG_WARN([Sorry, --without-mailsubject not supported.])
                ;;
     *)         mailsub="$with_mailsubject"
                AC_MSG_CHECKING(sudo mail subject)
@@ -600,11 +720,11 @@ 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, [  --with-passprompt       default password prompt],
-[case $with_passprompt in  
+AC_ARG_WITH(passprompt, [AS_HELP_STRING([--with-passprompt], [default password prompt])],
+[case $with_passprompt in
     yes)       AC_MSG_ERROR(["must give --with-passprompt an argument."])
                ;;
-    no)                echo "Sorry, --without-passprompt not supported."
+    no)                AC_MSG_WARN([Sorry, --without-passprompt not supported.])
                ;;
     *)         passprompt="$with_passprompt"
 esac])
@@ -612,11 +732,11 @@ 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, [  --with-badpass-message  message the user sees when the password is wrong],
-[case $with_badpass_message in  
+AC_ARG_WITH(badpass-message, [AS_HELP_STRING([--with-badpass-message], [message the user sees when the password is wrong])],
+[case $with_badpass_message in
     yes)       AC_MSG_ERROR(["Must give --with-badpass-message an argument."])
                ;;
-    no)                echo "Sorry, --without-badpass-message not supported."
+    no)                AC_MSG_WARN([Sorry, --without-badpass-message not supported.])
                ;;
     *)         badpass_message="$with_badpass_message"
                ;;
@@ -625,8 +745,8 @@ AC_DEFINE_UNQUOTED(INCORRECT_PASSWORD, "$badpass_message", [The message given wh
 AC_MSG_RESULT([$badpass_message])
 
 AC_MSG_CHECKING(whether to expect fully qualified hosts in sudoers)
-AC_ARG_WITH(fqdn, [  --with-fqdn             expect fully qualified hosts in sudoers],
-[case $with_fqdn in  
+AC_ARG_WITH(fqdn, [AS_HELP_STRING([--with-fqdn], [expect fully qualified hosts in sudoers])],
+[case $with_fqdn in
     yes)       fqdn=on
                ;;
     no)                fqdn=off
@@ -635,23 +755,30 @@ AC_ARG_WITH(fqdn, [  --with-fqdn             expect fully qualified hosts in sud
                ;;
 esac])
 if test "$fqdn" = "on"; then
-    AC_DEFINE(FQDN, 1, [Define if you want to require fully qualified hosts in sudoers.])
+    AC_DEFINE(FQDN)
     AC_MSG_RESULT(yes)
 else
     AC_MSG_RESULT(no)
 fi
 
-AC_ARG_WITH(timedir, [  --with-timedir          path to the sudo timestamp dir],
-[case $with_timedir in  
+AC_ARG_WITH(timedir, [AS_HELP_STRING([--with-timedir], [path to the sudo timestamp dir])],
+[case $with_timedir in
     yes)       AC_MSG_ERROR(["must give --with-timedir an argument."])
                ;;
     no)                AC_MSG_ERROR(["--without-timedir not supported."])
                ;;
 esac])
 
-AC_ARG_WITH(sendmail, [  --with-sendmail=path    set path to sendmail
-  --without-sendmail      do not send mail at all],
-[case $with_sendmail in  
+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(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)                ;;
@@ -659,8 +786,8 @@ AC_ARG_WITH(sendmail, [  --with-sendmail=path    set path to sendmail
                ;;
 esac])
 
-AC_ARG_WITH(sudoers-mode, [  --with-sudoers-mode     mode of sudoers file (defaults to 0440)],
-[case $with_sudoers_mode in  
+AC_ARG_WITH(sudoers-mode, [AS_HELP_STRING([--with-sudoers-mode], [mode of sudoers file (defaults to 0440)])],
+[case $with_sudoers_mode in
     yes)       AC_MSG_ERROR(["must give --with-sudoers-mode an argument."])
                ;;
     no)                AC_MSG_ERROR(["--without-sudoers-mode not supported."])
@@ -669,38 +796,38 @@ AC_ARG_WITH(sudoers-mode, [  --with-sudoers-mode     mode of sudoers file (defau
                ;;
     0*)                SUDOERS_MODE=$with_sudoers_mode
                ;;
-    *)         AC_MSG_ERROR(["you must use a numeric uid, not a name."])
+    *)         AC_MSG_ERROR(["you must use an octal mode, not a name."])
                ;;
 esac])
 
-AC_ARG_WITH(sudoers-uid, [  --with-sudoers-uid      uid that owns sudoers file (defaults to 0)],
-[case $with_sudoers_uid in  
+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 a numeric uid, not a name."])
+    *)         AC_MSG_ERROR(["you must use an unsigned numeric uid, not a name."])
                ;;
 esac])
 
-AC_ARG_WITH(sudoers-gid, [  --with-sudoers-gid      gid that owns sudoers file (defaults to 0)],
-[case $with_sudoers_gid in  
+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 a numeric gid, not a name."])
+    *)         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, [  --with-umask            umask with which the prog should run (default is 022)
-  --without-umask         Preserves the umask of the user invoking sudo.],
-[case $with_umask in  
+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
@@ -710,16 +837,27 @@ AC_ARG_WITH(umask, [  --with-umask            umask with which the prog should r
     *)         AC_MSG_ERROR(["you must enter a numeric mask."])
                ;;
 esac])
-AC_DEFINE_UNQUOTED(SUDO_UMASK, $sudo_umask, [The umask that the root-run prog should use.])
+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, [  --with-runas-default    User to run commands as (default is "root")],
-[case $with_runas_default in  
+AC_ARG_WITH(runas-default, [AS_HELP_STRING([--with-runas-default], [User to run commands as (default is "root")])],
+[case $with_runas_default in
     yes)       AC_MSG_ERROR(["must give --with-runas-default an argument."])
                ;;
     no)                AC_MSG_ERROR(["--without-runas-default not supported."])
@@ -730,8 +868,8 @@ esac])
 AC_DEFINE_UNQUOTED(RUNAS_DEFAULT, "$runas_default", [The user sudo should run commands as by default.])
 AC_MSG_RESULT([$runas_default])
 
-AC_ARG_WITH(exempt, [  --with-exempt=group     no passwd needed for users in this group],
-[case $with_exempt in  
+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."])
@@ -743,20 +881,21 @@ AC_ARG_WITH(exempt, [  --with-exempt=group     no passwd needed for users in thi
 esac])
 
 AC_MSG_CHECKING(for editor that visudo should use)
-AC_ARG_WITH(editor, [  --with-editor=path      Default editor for visudo (defaults to vi)],
-[case $with_editor in  
+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, [  --with-env-editor       Use the environment variable EDITOR for visudo],
-[case $with_env_editor in  
+AC_ARG_WITH(env-editor, [AS_HELP_STRING([--with-env-editor], [Use the environment variable EDITOR for visudo])],
+[case $with_env_editor in
     yes)       env_editor=on
                ;;
     no)                env_editor=off
@@ -765,15 +904,15 @@ AC_ARG_WITH(env-editor, [  --with-env-editor       Use the environment variable
                ;;
 esac])
 if test "$env_editor" = "on"; then
-    AC_DEFINE(ENV_EDITOR, 1, [Define if you want visudo to honor the EDITOR and VISUAL env variables.])
+    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, [  --with-passwd-tries     number of tries to enter password (default is 3)],
-[case $with_passwd_tries in  
+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."])
                ;;
@@ -786,8 +925,8 @@ AC_DEFINE_UNQUOTED(TRIES_FOR_PASSWORD, $passwd_tries, [The number of tries a use
 AC_MSG_RESULT($passwd_tries)
 
 AC_MSG_CHECKING(time in minutes after which sudo will ask for a password again)
-AC_ARG_WITH(timeout, [  --with-timeout          minutes before sudo asks for passwd again (def is 5 minutes)],
-[echo $with_timeout; case $with_timeout in  
+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
                ;;
@@ -800,8 +939,8 @@ AC_DEFINE_UNQUOTED(TIMEOUT, $timeout, [The number of minutes before sudo asks fo
 AC_MSG_RESULT($timeout)
 
 AC_MSG_CHECKING(time in minutes after the password prompt will time out)
-AC_ARG_WITH(password-timeout, [  --with-password-timeout passwd prompt timeout in minutes (default is 5 minutes)],
-[case $with_password_timeout in  
+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
                ;;
@@ -813,20 +952,9 @@ esac])
 AC_DEFINE_UNQUOTED(PASSWORD_TIMEOUT, $password_timeout, [The passwd prompt timeout (in minutes).])
 AC_MSG_RESULT($password_timeout)
 
-AC_ARG_WITH(execv, [  --with-execv            use execv() instead of execvp()],
-[case $with_execv in  
-    yes)       AC_MSG_CHECKING(whether to use execvp or execv)
-               AC_MSG_RESULT(execv)
-               AC_DEFINE(USE_EXECV, 1, [Define if you wish to use execv() instead of execvp() when running programs.])
-               ;;
-    no)                ;;
-    *)         AC_MSG_ERROR(["--with-execv does not take an argument."])
-               ;;
-esac])
-
 AC_MSG_CHECKING(whether to use per-tty ticket files)
-AC_ARG_WITH(tty-tickets, [  --with-tty-tickets      use a different ticket file for each tty],
-[case $with_tty_tickets in  
+AC_ARG_WITH(tty-tickets, [AS_HELP_STRING([--with-tty-tickets], [use a different ticket file for each tty])],
+[case $with_tty_tickets in
     yes)       tty_tickets=on
                ;;
     no)                tty_tickets=off
@@ -834,34 +962,38 @@ AC_ARG_WITH(tty-tickets, [  --with-tty-tickets      use a different ticket file
     *)         AC_MSG_ERROR(["--with-tty-tickets does not take an argument."])
                ;;
 esac])
-if test "$tty_tickets" = "on"; then
-    AC_DEFINE(USE_TTY_TICKETS, 1, [Define if you want a different ticket file for each tty.])
-    AC_MSG_RESULT(yes)
-else
+if test "$tty_tickets" = "off"; then
+    AC_DEFINE(NO_TTY_TICKETS)
     AC_MSG_RESULT(no)
+else
+    AC_MSG_RESULT(yes)
 fi
 
 AC_MSG_CHECKING(whether to include insults)
-AC_ARG_WITH(insults, [  --with-insults          insult the user for entering an incorrect password],
-[case $with_insults in  
+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, 1, [Define if you want to insult the user for entering an incorrect password.])
+    AC_DEFINE(USE_INSULTS)
     AC_MSG_RESULT(yes)
 else
     AC_MSG_RESULT(no)
 fi
 
-AC_ARG_WITH(all-insults, [  --with-all-insults      include all the sudo insult sets],
-[case $with_all_insults in  
+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
@@ -872,42 +1004,76 @@ AC_ARG_WITH(all-insults, [  --with-all-insults      include all the sudo insult
                ;;
 esac])
 
-AC_ARG_WITH(classic-insults, [  --with-classic-insults  include the insults from the "classic" sudo],
-[case $with_classic_insults in  
-    yes)       AC_DEFINE(CLASSIC_INSULTS, 1, [Define if you want the insults from the "classic" version sudo.])
+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, [  --with-csops-insults    include CSOps insults],
-[case $with_csops_insults in  
-    yes)       AC_DEFINE(CSOPS_INSULTS, 1, [Define if you want insults culled from the twisted minds of CSOps.])
+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, [  --with-hal-insults      include 2001-like insults],
-[case $with_hal_insults in  
-    yes)       AC_DEFINE(HAL_INSULTS, 1, [Define if you want 2001-like insults.])
+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, [  --with-goons-insults    include the insults from the "Goon Show"],
-[case $with_goons_insults in  
-    yes)       AC_DEFINE(GOONS_INSULTS, 1, [Define if you want insults from the "Goon Show".])
+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)
@@ -920,92 +1086,131 @@ if test "$insults" = "on"; then
 fi
 
 AC_MSG_CHECKING(whether to override the user's path)
-AC_ARG_WITH(secure-path, [  --with-secure-path      override the user's path with a builtin one],
-[case $with_secure_path in  
-    yes)       AC_DEFINE_UNQUOTED(SECURE_PATH, "/bin:/usr/ucb:/usr/bin:/usr/sbin:/sbin:/usr/etc:/etc", [Define to override the user's path with a builtin one.])
-               AC_MSG_RESULT([:/usr/ucb:/usr/bin:/usr/sbin:/sbin:/usr/etc:/etc])
+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, [  --without-interfaces    don't try to read the ip addr of ether interfaces],
-[case $with_interfaces in  
+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, 1, [Define if the code in interfaces.c does not compile for you.])
+    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_ARG_WITH(stow, [AS_HELP_STRING([--with-stow], [deprecated])],
+[case $with_stow in
+    *)         AC_MSG_NOTICE([--with-stow option deprecated, now is defalt behavior])
+               ;;
+esac])
+
+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 $with_askpass in
+    yes)       AC_MSG_ERROR(["--with-askpass takes a path as an argument."])
+               ;;
+    no)                ;;
+    *)         SUDO_DEFINE_UNQUOTED(_PATH_SUDO_ASKPASS, "$with_askpass", [The fully qualified pathname of askpass])
+               ;;
+esac], AC_MSG_RESULT(no))
+
+AC_ARG_WITH(plugindir, [AS_HELP_STRING([--with-plugindir], [set directory to load plugins from])],
+[case $with_plugindir in
+    no)                AC_MSG_ERROR(["illegal argument: --without-plugindir."])
+               ;;
+    *)         ;;
+esac], [with_plugindir="$libexecdir"])
+
+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,
-[  --disable-authentication
-                          Do not require authentication by default],
+[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, 1, [Define if you don't want sudo to prompt for a password by default.])
+               AC_DEFINE(NO_AUTHENTICATION)
                ;;
     *)         AC_MSG_RESULT(no)
-               echo "Ignoring unknown argument to --enable-authentication: $enableval"
+               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,
-[  --disable-root-mailer   Don't run the mailer as root, run as the user],
+[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, 1, [Define to avoid runing the mailer as root.])
+               AC_DEFINE(NO_ROOT_MAILER)
                ;;
     *)         AC_MSG_RESULT(no)
-               echo "Ignoring unknown argument to --enable-root-mailer: $enableval"
+               AC_MSG_WARN([Ignoring unknown argument to --enable-root-mailer: $enableval])
                ;;
   esac
 ], AC_MSG_RESULT(no))
 
 AC_ARG_ENABLE(setreuid,
-[  --disable-setreuid      Don't try to use the setreuid() function],
+[AS_HELP_STRING([--disable-setreuid], [Don't try to use the setreuid() function])],
 [ case "$enableval" in
-    no)                BROKEN_SETREUID=1
+    no)                SKIP_SETREUID=yes
                ;;
     *)         ;;
   esac
 ])
 
-AC_MSG_CHECKING(whether to disable use of POSIX saved ids)
-AC_ARG_ENABLE(saved-ids,
-[  --disable-saved-ids     Don't try to use POSIX saved ids],
+AC_ARG_ENABLE(setresuid,
+[AS_HELP_STRING([--disable-setresuid], [Don't try to use the setresuid() function])],
 [ case "$enableval" in
-    yes)       AC_MSG_RESULT(no)
-               ;;
-    no)                AC_MSG_RESULT(yes)
-               AC_DEFINE(NO_SAVED_IDS, 1, [Define to avoid using POSIX saved ids.])
-               ;;
-    *)         AC_MSG_RESULT(no)
-               echo "Ignoring unknown argument to --enable-saved-ids: $enableval"
+    no)                SKIP_SETRESUID=yes
                ;;
+    *)         ;;
   esac
-], AC_MSG_RESULT(no))
+])
 
 AC_MSG_CHECKING(whether to disable shadow password support)
 AC_ARG_ENABLE(shadow,
-[  --disable-shadow        Never use shadow passwords],
+[AS_HELP_STRING([--disable-shadow], [Never use shadow passwords])],
 [ case "$enableval" in
     yes)       AC_MSG_RESULT(no)
                ;;
@@ -1013,19 +1218,20 @@ AC_ARG_ENABLE(shadow,
                CHECKSHADOW="false"
                ;;
     *)         AC_MSG_RESULT(no)
-               echo "Ignoring unknown argument to --enable-shadow: $enableval"
+               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,
-[  --disable-root-sudo     Don't allow root to run sudo],
-[ case "$enableval" in  
+[AS_HELP_STRING([--disable-root-sudo], [Don't allow root to run sudo])],
+[ case "$enableval" in
     yes)       AC_MSG_RESULT(yes)
                ;;
-    no)                AC_DEFINE(NO_ROOT_SUDO, 1, [Define if root should not be allowed to use sudo.])
+    no)                AC_DEFINE(NO_ROOT_SUDO)
                AC_MSG_RESULT(no)
+               root_sudo=off
                ;;
     *)         AC_MSG_ERROR(["--enable-root-sudo does not take an argument."])
                ;;
@@ -1034,128 +1240,279 @@ AC_ARG_ENABLE(root-sudo,
 
 AC_MSG_CHECKING(whether to log the hostname in the log file)
 AC_ARG_ENABLE(log-host,
-[  --enable-log-host       Log the hostname in the log file],
+[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, 1, [Define if you want the hostname to be entered into the log file.])
+               AC_DEFINE(HOST_IN_LOG)
                ;;
     no)                AC_MSG_RESULT(no)
                ;;
     *)         AC_MSG_RESULT(no)
-               echo "Ignoring unknown argument to --enable-log-host: $enableval"
+               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,
-[  --enable-noargs-shell   If sudo is given no arguments run a 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, 1, [Define if you want sudo to start a shell if given no arguments.])
+               AC_DEFINE(SHELL_IF_NO_ARGS)
                ;;
     no)                AC_MSG_RESULT(no)
                ;;
     *)         AC_MSG_RESULT(no)
-               echo "Ignoring unknown argument to --enable-noargs-shell: $enableval"
+               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,
-[  --enable-shell-sets-home
-                          set $HOME to target user in shell mode],
+[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, 1, [Define if you want sudo to set $HOME in shell mode.])
+               AC_DEFINE(SHELL_SETS_HOME)
                ;;
     no)                AC_MSG_RESULT(no)
                ;;
     *)         AC_MSG_RESULT(no)
-               echo "Ignoring unknown argument to --enable-shell-sets-home: $enableval"
+               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,
-[  --disable-path-info     Print 'command not allowed' not 'command not found'],
+[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, 1, [Define if you want sudo to display "command not allowed" instead of "command not found" when a command cannot be found.])
+               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)
-               echo "Ignoring unknown argument to --enable-path-info: $enableval"
+               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: $enableval])
+           ;;
+  esac
+])
+
+AC_ARG_ENABLE(hardening,
+[AS_HELP_STRING([--disable-hardening], [Do not use compiler/linker exploit mitigation options])],
+[], [enable_hardening=yes])
+
+AC_ARG_ENABLE(pie,
+[AS_HELP_STRING([--disable-pie], [Do not build position independent executables, even if the compiler/linker supports them])],
+[], [enable_pie=yes])
+
+AC_ARG_ENABLE(admin-flag,
+[AS_HELP_STRING([--enable-admin-flag], [Whether to create a Ubuntu-style admin flag file])],
+[ case "$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_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])
+
+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=$enableval], [check_gss_krb5_ccache_name=no])
+
 dnl
-dnl If we don't have egrep we can't do anything...
+dnl C compiler checks
 dnl
-AC_CHECK_PROG(EGREPPROG, egrep, egrep, )
-if test -z "$EGREPPROG"; then
-    echo "Sorry, configure requires egrep to run."
-    exit
+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 Prevent configure from adding the -g flag unless in devel mode
+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 "$with_devel" != "yes"; then
-    ac_cv_prog_cc_g=no
+if test "$enable_static" = "no"; then
+    AC_MSG_WARN([Ignoring --disable-static, sudo does not install static libs])
+    enable_static=yes
 fi
 
 dnl
-dnl C compiler checks
-dnl XXX - the cross-compiler check gets false positives so we override it
-dnl
-AC_ISC_POSIX
-ac_cv_prog_cc_cross="no"
-cross_compiling="no"
-AC_PROG_CC_STDC
-ac_cv_prog_cc_cross="no"
-cross_compiling="no"
-AC_PROG_CPP
+dnl Libtool setup, we require libtool 2.2.6b or higher
+dnl
+AC_CANONICAL_HOST
+AC_CONFIG_MACRO_DIR([m4])
+LT_PREREQ([2.2.6b])
+LT_INIT([dlopen])
 
 dnl
-dnl It is now safe to modify CFLAGS and CPPFLAGS
+dnl Defer with_noexec until after libtool magic runs
 dnl
-if test "$with_devel" = "yes" -a -n "$GCC"; then
-    CFLAGS="${CFLAGS} -Wall"
+if test "$enable_shared" = "no"; then
+    with_noexec=no
+    enable_dlopen=no
+    lt_cv_dlopen=none
+    lt_cv_dlopen_libs=
+    ac_cv_func_dlopen=no
+else
+    eval _shrext="$shrext_cmds"
+    # Darwin uses .dylib for libraries but .so for modules
+    if test X"$_shrext" = X".dylib"; then
+       SOEXT=".so"
+    else
+       SOEXT="$_shrext"
+    fi
 fi
+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_noexec$_shrext"
+               ;;
+    no)                ;;
+    *)         ;;
+esac], [with_noexec="$libexecdir/sudo_noexec$_shrext"])
+AC_MSG_RESULT($with_noexec)
+NOEXECFILE="sudo_noexec$_shrext"
+NOEXECDIR="`echo $with_noexec|sed -e 's:^${\([[^}]]*\)}:$(\1):' -e 's:^\(.*\)/[[^/]]*:\1:'`"
 
 dnl
 dnl Find programs we use
 dnl
-AC_CHECK_PROG(UNAMEPROG, uname, uname, )
-AC_CHECK_PROG(TRPROG, tr, tr, )
-AC_CHECK_PROG(SEDPROG, sed, sed, )
-AC_CHECK_PROG(NROFFPROG, nroff, nroff, )
-if test -z "$NROFFPROG"; then
-    MANTYPE="cat"
-    mansrcdir='$(srcdir)'
+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
-AC_CANONICAL_HOST
 if test -n "$sudo_cv_prev_host"; then
     if test "$sudo_cv_prev_host" != "$host"; then
-       echo ""
-       echo "Fatal Error: config.cache exists from another platform!"
-       echo "Please remove it and re-run configure."
-       echo ""
-       exit 1
+       AC_MSG_ERROR([config.cache was created on a different host; remove it and re-run configure.])
     else
        AC_MSG_CHECKING(previous host type)
        AC_CACHE_VAL(sudo_cv_prev_host, sudo_cv_prev_host="$host")
-       echo $sudo_cv_prev_host
+       AC_MSG_RESULT([$sudo_cv_prev_host])
     fi
 else
     # this will produce no output since there is no cached value
@@ -1167,177 +1524,261 @@ 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]]*\([[0-9]][[0-9]]*\).*$/\1/'`
+    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
     *-*-sunos4*)
+               # LD_PRELOAD is space-delimited
+               RTLD_PRELOAD_DELIM=" "
+
                # getcwd(3) opens a pipe to getpwd(1)!?!
                BROKEN_GETCWD=1
 
                # system headers lack prototypes but gcc helps...
                if test -n "$GCC"; then
-                   CPPFLAGS="${CPPFLAGS} -D__USE_FIXED_PROTOTYPES__"
+                   OSDEFS="${OSDEFS} -D__USE_FIXED_PROTOTYPES__"
                fi
 
-               # check for password adjunct functions (shadow passwords)
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_FUNCS(getpwanam issecure, , [break])
-                   AH_TEMPLATE([HAVE_GETPWANAM], [Define if you have the `getpwanam' function. (SunOS 4.x shadow passwords)])
-                   AH_TEMPLATE([HAVE_ISSECURE], [Define if you have the `issecure' function. (SunOS 4.x check for shadow enabled)])
-                   CHECKSHADOW="false"
-               fi
+               shadow_funcs="getpwanam issecure"
                ;;
     *-*-solaris2*)
+               # LD_PRELOAD is space-delimited
+               RTLD_PRELOAD_DELIM=" "
+
+               # For implementing getgrouplist()
+               AC_CHECK_FUNCS(_getgroupsbymember)
+
                # To get the crypt(3) prototype (so we pass -Wall)
-               CPPFLAGS="${CPPFLAGS} -D__EXTENSIONS__"
+               OSDEFS="${OSDEFS} -D__EXTENSIONS__"
                # AFS support needs -lucb
                if test "$with_AFS" = "yes"; then
                    AFS_LIBS="-lc -lucb"
                fi
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
+               : ${with_rpath='yes'}
+               test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
+               AC_CHECK_FUNCS(priv_set, [PSMAN=1])
                ;;
     *-*-aix*)
                # To get all prototypes (so we pass -Wall)
-               CPPFLAGS="${CPPFLAGS} -D_XOPEN_EXTENDED_SOURCE"
-               SUDO_DEFINE(_ALL_SOURCE)
-               SUDO_LDFLAGS="${SUDO_LDFLAGS} -Wl,-bI:\$(srcdir)/aixcrypt.exp"
-               ;;
-    *-*-hiuxmpp*)
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_LIB(sec, getprpwnam, AC_DEFINE(HAVE_GETPRPWNAM) [SUDO_LIBS="${SUDO_LIBS} -lsec"; LIBS="${LIBS} -lsec"; SECUREWARE=1], AC_CHECK_LIB(security, getprpwnam, AC_DEFINE(HAVE_GETPRPWNAM) [SUDO_LIBS="${SUDO_LIBS} -lsecurity"; LIBS="${LIBS} -lsecurity"; SECUREWARE=1]))
-                   CHECKSHADOW="false"
-               fi
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
-               ;;
-    *-*-hpux1[[0-9]]*)
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_LIB(sec, getprpwnam, AC_DEFINE(HAVE_GETPRPWNAM) AC_CHECK_LIB(sec, iscomsec, AC_DEFINE(HAVE_ISCOMSEC, 1, [Define if you have the `iscomsec' function. (HP-UX >= 10.x check for shadow enabled)])) [SUDO_LIBS="${SUDO_LIBS} -lsec"; LIBS="${LIBS} -lsec"; SECUREWARE=1])
-                   CHECKSHADOW="false"
+               OSDEFS="${OSDEFS} -D_ALL_SOURCE -D_LINUX_SOURCE_COMPAT"
+               SUDOERS_LDFLAGS="${SUDOERS_LDFLAGS} -Wl,-bI:\$(srcdir)/aixcrypt.exp"
+               if test X"$with_blibpath" != X"no"; then
+                   AC_MSG_CHECKING([if linker accepts -Wl,-blibpath])
+                   O_LDFLAGS="$LDFLAGS"
+                   LDFLAGS="$O_LDFLAGS -Wl,-blibpath:/usr/lib:/lib"
+                   AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])], [
+                       if test -n "$with_blibpath" -a "$with_blibpath" != "yes"; then
+                           blibpath="$with_blibpath"
+                       elif test -n "$GCC"; then
+                           blibpath="/usr/lib:/lib:/usr/local/lib"
+                       else
+                           blibpath="/usr/lib:/lib"
+                       fi
+                       AC_MSG_RESULT(yes)
+                   ], [AC_MSG_RESULT(no)])
                fi
+               LDFLAGS="$O_LDFLAGS"
 
-               # AFS support needs -lBSD
-               if test "$with_AFS" = "yes"; then
-                   AFS_LIBS="-lc -lBSD"
+               # On AIX 6 and higher default to PAM, else default to LAM
+               if test $OSMAJOR -ge 6; then
+                   if test X"$with_pam" = X""; then
+                       AUTH_EXCL_DEF="PAM"
+                   fi
+               else
+                   if test X"$with_aixauth" = X""; then
+                       AC_CHECK_FUNCS(authenticate, [AUTH_EXCL_DEF="AIX_AUTH"])
+                   fi
                fi
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
-               ;;
-    *-*-hpux9*)
-               AC_DEFINE(BROKEN_SYSLOG, 1, [Define if the `syslog' function returns a non-zero int to denote failure.])
 
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_FUNCS(getspwuid)
-                   AH_TEMPLATE([HAVE_GETSPWUID], [Define if you have the `getspwuid' function. (HP-UX <= 9.X shadow passwords)])
-                   CHECKSHADOW="false"
+               # 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
 
-               # DCE support (requires ANSI C compiler)
-               if test "$with_DCE" = "yes"; then
-                   # order of libs in 9.X is important. -lc_r must be last
-                   SUDO_LIBS="${SUDO_LIBS} -ldce -lM -lc_r"
-                   LIBS="${LIBS} -ldce -lM -lc_r"
-                   CPPFLAGS="${CPPFLAGS} -D_REENTRANT -I/usr/include/reentrant"
+               # For implementing getgrouplist()
+               AC_CHECK_FUNCS(getgrset)
+
+               # LDR_PRELOAD is only supported in AIX 5.3 and later
+               if test $OSMAJOR -lt 5; then
+                   with_noexec=no
+               else
+                   RTLD_PRELOAD_VAR="LDR_PRELOAD"
                fi
 
+               # AIX-specific functions
+               AC_CHECK_FUNCS(getuserattr setauthdb)
+               COMMON_OBJS="$COMMON_OBJS aix.lo"
+               ;;
+    *-*-hiuxmpp*)
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
+
+               # HP-UX shared libs must be executable
+               SHLIB_MODE=0755
+               ;;
+    *-*-hpux*)
                # AFS support needs -lBSD
                if test "$with_AFS" = "yes"; then
                    AFS_LIBS="-lc -lBSD"
                fi
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
-               ;;
-    *-*-hpux*)
-               AC_DEFINE(BROKEN_SYSLOG)
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
 
-               # Not sure if setuid binaries are safe in < 9.x
-               if test -n "$GCC"; then
-                   SUDO_LDFLAGS="${SUDO_LDFLAGS} -static"
-               else
-                   SUDO_LDFLAGS="${SUDO_LDFLAGS} -Wl,-a,archive"
-               fi
+               # HP-UX shared libs must be executable
+               SHLIB_MODE=0755
 
-               # AFS support needs -lBSD
-               if test "$with_AFS" = "yes"; then
-                   AFS_LIBS="-lc -lBSD"
+               # The HP bundled compiler cannot generate shared libs
+               if test -z "$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
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
-               ;;
-    *-dec-osf*)
-               # ignore envariables wrt dynamic lib path
-               SUDO_LDFLAGS="${SUDO_LDFLAGS} -Wl,-no_library_replacement"
 
-               AC_MSG_CHECKING(whether to disable sia support on Digital UNIX)
-               AC_ARG_ENABLE(sia,
-               [  --disable-sia           Never use SIA on Digital UNIX],
+               # 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" in
+                       *-*-hpux[[1-8]].*)
+                           AC_DEFINE(BROKEN_SYSLOG)
+                       ;;
+                       *-*-hpux9.*)
+                           AC_DEFINE(BROKEN_SYSLOG)
+
+                           shadow_funcs="getspwuid"
+
+                           # DCE support (requires ANSI C compiler)
+                           if test "$with_DCE" = "yes"; then
+                               # order of libs in 9.X is important. -lc_r must be last
+                               SUDOERS_LIBS="${SUDOERS_LIBS} -ldce -lM -lc_r"
+                               LIBS="${LIBS} -ldce -lM -lc_r"
+                               CPPFLAGS="${CPPFLAGS} -D_REENTRANT -I/usr/include/reentrant"
+                           fi
+                       ;;
+                       *-*-hpux10.*)
+                           shadow_funcs="getprpwnam iscomsec"
+                           shadow_libs="-lsec"
+                           # HP-UX 10.20 libc has an incompatible getline
+                           ac_cv_func_getline="no"
+                       ;;
+                       *)
+                           shadow_funcs="getspnam iscomsec"
+                           shadow_libs="-lsec"
+                           test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
+                       ;;
+               esac
+               ;;
+    *-dec-osf*)
+               # ignore envariables wrt dynamic lib path
+               # XXX - sudo LDFLAGS instead?
+               SUDOERS_LDFLAGS="${SUDOERS_LDFLAGS} -Wl,-no_library_replacement"
+
+               : ${CHECKSIA='true'}
+               AC_MSG_CHECKING(whether to disable sia support on Digital UNIX)
+               AC_ARG_ENABLE(sia,
+               [AS_HELP_STRING([--disable-sia], [Disable SIA on Digital UNIX])],
                [ case "$enableval" in
                    yes)        AC_MSG_RESULT(no)
+                               CHECKSIA=true
                                ;;
                    no)         AC_MSG_RESULT(yes)
                                CHECKSIA=false
                                ;;
                    *)          AC_MSG_RESULT(no)
-                               echo "Ignoring unknown argument to --enable-sia: $enableval"
+                               AC_MSG_WARN([Ignoring unknown argument to --enable-sia: $enableval])
                                ;;
                  esac
                ], AC_MSG_RESULT(no))
 
-               # use SIA by default, if we have it, else SecureWare
-               # unless overridden on the command line
-               if test "$CHECKSIA" = "true"; then
-                   AC_CHECK_FUNC(sia_ses_init, AC_DEFINE(HAVE_SIA, 1, [Define if you use SIA.]) [
-                   if test -n "$with_skey" -o -n "$with_opie" -o -n "$with_otp_only" -o -n "$with_long_otp_prompt" -o -n "$with_SecurID" -o -n "$with_fwtk" -o -n "$with_kerb4" -o -n "$with_kerb5" -o -n "$with_pam" -o -n "$with_AFS" -o -n "$with_DCE"; then
-                       AC_MSG_ERROR(["you cannot mix SIA and other authentication schemes.  You can turn off SIA support via the --disable-sia option"])
-                   fi]; CHECKSHADOW=false)
-               fi
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_LIB(security, getprpwnam, SECUREWARE=1)
-                   CHECKSHADOW="false"
+               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
 
-               if test -n "$SECUREWARE"; then
-                   AC_DEFINE(HAVE_GETPRPWNAM, 1, [Define if you have the `getprpwnam' function.  (SecureWare-style shadow passwords)])
-                   # -ldb includes bogus versions of snprintf/vsnprintf
-                   AC_CHECK_FUNCS(snprintf, , [NEED_SNPRINTF=1])
-                   AC_CHECK_FUNCS(vsnprintf, , [NEED_SNPRINTF=1])
-                   # 4.x and higher need -ldb too...
-                   AC_CHECK_LIB(db, dbopen, [SUDO_LIBS="${SUDO_LIBS} -lsecurity -ldb -laud -lm"; LIBS="${LIBS} -lsecurity -ldb -laud -lm"], [SUDO_LIBS="${SUDO_LIBS} -lsecurity -ldb -laud -lm"; LIBS="${LIBS} -lsecurity -ldb -laud -lm"])
-                   AC_CHECK_FUNCS(dispcrypt)
-                   AC_MSG_CHECKING([for broken /usr/include/prot.h])
-                   AC_TRY_COMPILE([
+               # use SIA by default, if we have it
+               test "$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
-                   ])
-               elif test "$CHECKSIA" = "true"; then
-                   with_passwd=no
-                   AUTH_OBJS="sia.o"
-               fi
-               test -n "$mansectsu" || mansectsu=8
-               test -n "$mansectform" || mansectform=4
+               ]], [[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'}
+               : ${mansectform='4'}
                ;;
     *-*-irix*)
-               CPPFLAGS="${CPPFLAGS} -D_BSD_TYPES"
+               OSDEFS="${OSDEFS} -D_BSD_TYPES"
                if test -z "$NROFFPROG"; then
-                   MAN_POSTINSTALL='   /bin/rm -f $(mandir8)/sudo.$(mansect8).z $(mandir8)/visudo.$(mansect8).z $(mandir5)/sudoers.$(mansect5).z ; /usr/bin/pack $(mandir8)/sudo.$(mansect8) $(mandir8)/visudo.$(mansect8) $(mandir5)/sudoers.$(mansect5)'
-                   if test "$prefix" = "/usr/local" -a "$mandir" = '$(prefix)/man'; then
+                   if test "$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" = '$(prefix)/man'; then
+                   if test "$prefix" = "/usr/local" -a "$mandir" = '${datarootdir}/man'; then
                        if test -d "/usr/share/man/local"; then
                            mandir="/usr/share/man/local"
                        else
@@ -1346,169 +1787,242 @@ case "$host" in
                    fi
                fi
                # IRIX <= 4 needs -lsun
-               if test "$OSREV" -le 4; then
+               if test "$OSMAJOR" -le 4; then
                    AC_CHECK_LIB(sun, getpwnam, [LIBS="${LIBS} -lsun"])
                fi
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
-               ;;
-    *-*-linux*)
+               # ":DEFAULT" must be appended to _RLD_LIST
+               RTLD_PRELOAD_VAR="_RLD_LIST"
+               RTLD_PRELOAD_DEFAULT="DEFAULT"
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
+               ;;
+    *-*-linux*|*-*-k*bsd*-gnu)
+               OSDEFS="${OSDEFS} -D_GNU_SOURCE"
                # Some Linux versions need to link with -lshadow
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_FUNCS(getspnam, , [AC_CHECK_LIB(shadow, getspnam, AC_DEFINE(HAVE_GETSPNAM) [SUDO_LIBS="${SUDO_LIBS} -lshadow"; LIBS="${LIBS} -lshadow"])])
-                   CHECKSHADOW="false"
-               fi
+               shadow_funcs="getspnam"
+               shadow_libs_optional="-lshadow"
+               test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
                ;;
     *-convex-bsd*)
-               SUDO_DEFINE(_CONVEX_SOURCE)
+               OSDEFS="${OSDEFS} -D_CONVEX_SOURCE"
                if test -z "$GCC"; then
                    CFLAGS="${CFLAGS} -D__STDC__"
                fi
 
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_LIB(sec, getprpwnam, AC_DEFINE(HAVE_GETPRPWNAM) [SUDO_LIBS="${SUDO_LIBS} -lprot"; LIBS="${LIBS} -lprot"; OSDEFS="${OSDEFS} -D_AUDIT -D_ACL -DSecureWare"; SECUREWARE=1])
-                   CHECKSHADOW="false"
-               fi
+               shadow_defs="-D_AUDIT -D_ACL -DSecureWare"
+               shadow_funcs="getprpwnam"
+               shadow_libs="-lprot"
                ;;
     *-*-ultrix*)
                OS="ultrix"
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_LIB(auth, getauthuid, AC_DEFINE(HAVE_GETAUTHUID, 1, [Define if you have the `getauthuid' function.  (ULTRIX 4.x shadow passwords)]) [SUDO_LIBS="${SUDO_LIBS} -lauth"; LIBS="${LIBS} -lauth"])
-                   CHECKSHADOW="false"
-               fi
+               shadow_funcs="getauthuid"
+               shadow_libs="-lauth"
                ;;
     *-*-riscos*)
                LIBS="${LIBS} -lsun -lbsd"
                CPPFLAGS="${CPPFLAGS} -I/usr/include -I/usr/include/bsd"
                OSDEFS="${OSDEFS} -D_MIPS"
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
                ;;
     *-*-isc*)
                OSDEFS="${OSDEFS} -D_ISC"
                LIB_CRYPT=1
-               SUDO_LIBS="${SUDO_LIBS} -lcrypt"
-               LIBS="${LIBS} -lcrypt"
+               SUDOERS_LIBS="${SUDOERS_LIBS} -lcrypt"
 
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_LIB(sec, getspnam, AC_DEFINE(HAVE_GETSPNAM) [SUDO_LIBS="${SUDO_LIBS} -lsec"; LIBS="${LIBS} -lsec"])
-                   CHECKSHADOW="false"
-               fi
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
+               shadow_funcs="getspnam"
+               shadow_libs="-lsec"
+
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
                ;;
     *-*-sco*|*-sco-*)
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_LIB(prot, getprpwnam, AC_DEFINE(HAVE_GETPRPWNAM) [SUDO_LIBS="${SUDO_LIBS} -lprot -lx"; LIBS="${LIBS} -lprot -lx"; SECUREWARE=1], , -lx)
-                   AC_CHECK_LIB(gen, getspnam, AC_DEFINE(HAVE_GETSPNAM) [SUDO_LIBS="${SUDO_LIBS} -lgen"; LIBS="${LIBS} -lgen"])
-                   CHECKSHADOW="false"
-               fi
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
+               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 $CFLAGS | sed 's/-O2/-O/g'`
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
                ;;
     *-sequent-sysv*)
-               if test "$CHECKSHADOW" = "true"; then
-                   AC_CHECK_LIB(sec, getspnam, AC_DEFINE(HAVE_GETSPNAM) [SUDO_LIBS="${SUDO_LIBS} -lsec"; LIBS="${LIBS} -lsec"])
-                   CHECKSHADOW="false"
-               fi
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
+               shadow_funcs="getspnam"
+               shadow_libs="-lsec"
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
+               : ${with_rpath='yes'}
                ;;
     *-ncr-sysv4*|*-ncr-sysvr4*)
-               AC_CHECK_LIB(c89, strcasecmp, AC_DEFINE(HAVE_STRCASECMP) [LIBS="${LIBS} -lc89"; ac_cv_func_strcasecmp=yes])
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
+               AC_CHECK_LIB(c89, strcasecmp, [LIBS="${LIBS} -lc89"])
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
+               : ${with_rpath='yes'}
                ;;
     *-ccur-sysv4*|*-ccur-sysvr4*)
                LIBS="${LIBS} -lgen"
-               SUDO_LIBS="${SUDO_LIBS} -lgen"
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
+               : ${with_rpath='yes'}
                ;;
     *-*-bsdi*)
-               BROKEN_SETREUID=yes
-               # Use shlicc for BSD/OS [23].x unless asked to do otherwise
-               if test "${with_CC+set}" != set -a "$ac_cv_prog_CC" = gcc; then
-                   case "$OSREV" in
-                       2|3)    echo 'using shlicc as CC'
-                               ac_cv_prog_CC=shlicc
-                               CC="$ac_cv_prog_CC"
-                               ;;
-                   esac
+               SKIP_SETREUID=yes
+               # Check for newer BSD auth API
+               if test -z "$with_bsdauth"; then
+                   AC_CHECK_FUNCS(auth_challenge, [AUTH_EXCL_DEF="BSD_AUTH"])
                fi
                ;;
     *-*-freebsd*)
                # FreeBSD has a real setreuid(2) starting with 2.1 and
                # backported to 2.0.5.  We just take 2.1 and above...
-               case "`echo $host_os | sed 's/^freebsd\([[0-9\.]]*\).*$/\1/'`" in
+               case "$OSREV" in
                0.*|1.*|2.0*)
-                   BROKEN_SETREUID=yes
+                   SKIP_SETREUID=yes
                    ;;
                esac
-               if test "$with_logincap" = "yes"; then
-                   SUDO_LIBS="${SUDO_LIBS} -lutil"
-               fi
-               if test "$with_skey" = "yes"; then
-                    SUDO_LIBS="${SUDO_LIBS} -lmd"
-               fi
-               if test "$CHECKSHADOW" = "true"; then
-                   CHECKSHADOW="false"
+               OSDEFS="${OSDEFS} -D_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"
+               : ${with_logincap='maybe'}
+               # PIE is broken on FreeBSD/ia64
+               case "$host_cpu" in
+               ia64*)
+                       enable_pie=no;;
+               esac
                ;;
     *-*-*openbsd*)
-               BROKEN_SETREUID=yes
-               if test "$CHECKSHADOW" = "true"; then
-                   CHECKSHADOW="false"
+               # OpenBSD has a real setreuid(2) starting with 3.3 but
+               # we will use setresuid(2) instead.
+               SKIP_SETREUID=yes
+               OSDEFS="${OSDEFS} -D_BSD_SOURCE"
+               CHECKSHADOW="false"
+               # 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'}
                ;;
     *-*-*netbsd*)
                # NetBSD has a real setreuid(2) starting with 1.3.2
-               case "`echo $host_os | sed 's/^netbsd\([[0-9\.]]*\).*$/\1/'`" in
-               0.9*|1.[012]*|1.3|1.3.1)
-                   BROKEN_SETREUID=yes
+               case "$OSREV" in
+               0.9*|1.[[012]]*|1.3|1.3.1)
+                   SKIP_SETREUID=yes
                    ;;
                esac
-               if test "$CHECKSHADOW" = "true"; then
-                   CHECKSHADOW="false"
+               CHECKSHADOW="false"
+               test -z "$with_pam" && AUTH_EXCL_DEF="PAM"
+               : ${with_logincap='maybe'}
+               ;;
+    *-*-dragonfly*)
+               OSDEFS="${OSDEFS} -D_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"
+               : ${with_logincap='yes'}
                ;;
     *-*-*bsd*)
-               if test "$CHECKSHADOW" = "true"; then
-                   CHECKSHADOW="false"
+               CHECKSHADOW="false"
+               ;;
+    *-*-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'}
+               RTLD_PRELOAD_VAR="DYLD_INSERT_LIBRARIES"
+               RTLD_PRELOAD_ENABLE_VAR="DYLD_FORCE_FLAT_NAMESPACE"
                ;;
     *-*-nextstep*)
                # lockf() on is broken on the NeXT -- use flock instead
                ac_cv_func_lockf=no
                ac_cv_func_flock=yes
+               RTLD_PRELOAD_VAR="DYLD_INSERT_LIBRARIES"
+               RTLD_PRELOAD_ENABLE_VAR="DYLD_FORCE_FLAT_NAMESPACE"
+               ;;
+    *-*-*sysv4*)
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
+               : ${with_rpath='yes'}
                ;;
     *-*-sysv*)
-               test -n "$mansectsu" || mansectsu=1m
-               test -n "$mansectform" || mansectform=4
+               : ${mansectsu='1m'}
+               : ${mansectform='4'}
+               ;;
+    *-gnu*)
+               OSDEFS="${OSDEFS} -D_GNU_SOURCE"
                ;;
 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
+    set -- $AUTH_EXCL
+    if test $# != 1; then
+       AC_MSG_ERROR([More than one mutually exclusive authentication method specified: $AUTH_EXCL])
+    fi
+    if test -n "$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
-test -n "$mansectsu" || mansectsu=8
-test -n "$mansectform" || mansectform=5
+: ${mansectsu='8'}
+: ${mansectform='5'}
 
 dnl
-dnl Check for shadow password routines if we have not already done so.
-dnl We check for SVR4-style first and then SecureWare-style.
+dnl Add in any libpaths or libraries specified via configure
 dnl
-if test "$CHECKSHADOW" = "true"; then
-    AC_CHECK_FUNCS(getspnam, [CHECKSHADOW="false"], [AC_CHECK_LIB(gen, getspnam, AC_DEFINE(HAVE_GETSPNAM, 1, [Define if you have the `getspnam' function (SVR4-style shadow passwords)]) [SUDO_LIBS="${SUDO_LIBS} -lgen"; LIBS="${LIBS} -lgen"])])
+if test -n "$with_libpath"; then
+    for i in ${with_libpath}; do
+       SUDO_APPEND_LIBPATH(LDFLAGS, [$i])
+    done
 fi
-if test "$CHECKSHADOW" = "true"; then
-    AC_CHECK_FUNC(getprpwnam, [AC_DEFINE(HAVE_GETPRPWNAM) [CHECKSHADOW="false"; SECUREWARE=1], AC_CHECK_LIB(sec, getprpwnam, AC_DEFINE(HAVE_GETPRPWNAM) [CHECKSHADOW="false"; SECUREWARE=1; SUDO_LIBS="${SUDO_LIBS} -lsec"; LIBS="${LIBS} -lsec"], AC_CHECK_LIB(security, getprpwnam, AC_DEFINE(HAVE_GETPRPWNAM) [CHECKSHADOW="false"; SECUREWARE=1; SUDO_LIBS="${SUDO_LIBS} -lsecurity"; LIBS="${LIBS} -lsecurity"], AC_CHECK_LIB(prot, getprpwnam, AC_DEFINE(HAVE_GETPRPWNAM) [CHECKSHADOW="false"; SECUREWARE=1; SUDO_LIBS="${SUDO_LIBS} -lprot"; LIBS="${LIBS} -lprot"])))])
+if test -n "$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
@@ -1517,89 +2031,302 @@ dnl
 AC_PROG_GCC_TRADITIONAL
 AC_C_CONST
 AC_C_VOLATILE
+# Check 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_ERROR([Your C compiler doesn't support variadic macros, try building with gcc instead])])
+
 dnl
 dnl Program checks
 dnl
 AC_PROG_YACC
+AC_PATH_PROG([FLEX], [flex], [flex])
 SUDO_PROG_MV
 SUDO_PROG_BSHELL
 if test -z "$with_sendmail"; then
     SUDO_PROG_SENDMAIL
 fi
-if test -z "$with_editor"; then
-    SUDO_PROG_VI
+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($logfac)
 dnl
 dnl Header file checks
 dnl
 AC_HEADER_STDC
 AC_HEADER_DIRENT
-AC_CHECK_HEADERS(malloc.h paths.h utime.h netgroup.h sys/sockio.h sys/bsdtypes.h sys/select.h)
-dnl ultrix termio/termios are broken
-if test "$OS" != "ultrix"; then
-    AC_SYS_POSIX_TERMIOS
-    if test "$ac_cv_sys_posix_termios" = "yes"; then
-       AC_DEFINE(HAVE_TERMIOS_H, 1, [Define if you have the <termios.h> header file and the `tcgetattr' function.])
-    else
-       AC_CHECK_HEADERS(termio.h)
-    fi
+AC_HEADER_TIME
+AC_HEADER_STDBOOL
+AC_HEADER_MAJOR
+AC_CHECK_HEADERS(malloc.h netgroup.h paths.h spawn.h utime.h utmpx.h sys/sockio.h sys/bsdtypes.h sys/select.h sys/stropts.h sys/sysmacros.h)
+AC_CHECK_HEADERS([procfs.h] [sys/procfs.h], [AC_CHECK_MEMBERS(struct psinfo.pr_ttydev, [AC_CHECK_FUNCS(_ttyname_dev)], [], [AC_INCLUDES_DEFAULT
+#ifdef HAVE_PROCFS_H
+#include <procfs.h>
+#endif
+#ifdef HAVE_SYS_PROCFS_H
+#include <sys/procfs.h>
+#endif
+])]
+break)
+dnl
+dnl Check for large file support.  HP-UX 11.23 has a broken sys/type.h
+dnl when large files support is enabled so work around it.
+dnl
+AC_SYS_LARGEFILE
+case "$host" in
+    *-*-hpux11.*)
+       AC_CACHE_CHECK([whether sys/types.h needs _XOPEN_SOURCE_EXTENDED], [sudo_cv_xopen_source_extended],
+       [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+       #include <sys/socket.h>], [])], [sudo_cv_xopen_source_extended=no], [
+           AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#define _XOPEN_SOURCE_EXTENDED
+           AC_INCLUDES_DEFAULT
+           #include <sys/socket.h>], [])], [sudo_cv_xopen_source_extended=yes],
+           [sudo_cv_xopen_source_extended=error])
+       ])])
+       if test "$sudo_cv_xopen_source_extended" = "yes"; then
+           OSDEFS="${OSDEFS} -D_XOPEN_SOURCE_EXTENDED"
+           SUDO_DEFINE(_XOPEN_SOURCE_EXTENDED)
+       fi
+       ;;
+esac
+AC_SYS_POSIX_TERMIOS
+if test "$ac_cv_sys_posix_termios" != "yes"; then
+    AC_MSG_ERROR([Must have POSIX termios to build sudo])
 fi
-if test "$with_logincap" = "yes"; then
-    AC_CHECK_HEADERS(login_cap.h)
+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_bsdauth" = "yes"; then
-    AC_CHECK_HEADER(bsd_auth.h, AC_DEFINE(HAVE_BSD_AUTH_H, 1, [Define if you use BSD authentication.]) [with_passwd=no; AUTH_OBJS=bsdauth.o])
+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
 AC_TYPE_MODE_T
 AC_TYPE_UID_T
-AC_CHECK_TYPES([sig_atomic_t], , [AC_DEFINE(sig_atomic_t, int, [Define to `int' if <signal.h> does not define.])], [#include <sys/types.h>
+AC_CHECK_TYPE([__signed char], [], [AC_CHECK_TYPE([signed char], [AC_DEFINE(__signed, signed)], [AC_DEFINE(__signed, [])])])
+AC_CHECK_TYPE([sig_atomic_t], [], [AC_DEFINE(sig_atomic_t, int)], [#include <sys/types.h>
 #include <signal.h>])
-AC_CHECK_TYPES([sigaction_t], [AC_DEFINE(HAVE_SIGACTION_T, 1, [Define if <signal.h> has the sigaction_t typedef.])], ,[#include <sys/types.h>
+AC_CHECK_TYPES([sigaction_t], [], [], [#include <sys/types.h>
 #include <signal.h>])
-SUDO_TYPE_SIZE_T
-SUDO_TYPE_SSIZE_T
-SUDO_TYPE_DEV_T
-SUDO_TYPE_INO_T
-SUDO_FULL_VOID
+AC_CHECK_TYPES([struct timespec], [], [], [#include <sys/types.h>
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+#endif
+#include <time.h>])
+AC_CHECK_TYPES([struct in6_addr], [], [], [#include <sys/types.h>
+#include <netinet/in.h>])
+AC_TYPE_LONG_LONG_INT
+AC_CHECK_SIZEOF([long int])
+AC_CHECK_TYPE(size_t, unsigned int)
+AC_CHECK_TYPE(ssize_t, int)
+AC_CHECK_TYPE(dev_t, int)
+AC_CHECK_TYPE(ino_t, unsigned int)
+AC_CHECK_TYPE(socklen_t, [], [AC_DEFINE(socklen_t, unsigned int)], [
+AC_INCLUDES_DEFAULT
+#include <sys/socket.h>])
 SUDO_UID_T_LEN
-SUDO_LONG_LONG
 SUDO_SOCK_SA_LEN
 dnl
-dnl only set RETSIGTYPE if it is not set already
-dnl
-case "$DEFS" in
-    *"RETSIGTYPE"*)    ;;
-    *)                 AC_TYPE_SIGNAL;;
-esac
+dnl Check for utmp/utmpx struct members.
+dnl We need to include OSDEFS for glibc which only has __e_termination
+dnl visible when _GNU_SOURCE is *not* defined.
+dnl
+_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS $OSDEFS"
+if test $ac_cv_header_utmpx_h = "yes"; then
+    AC_CHECK_MEMBERS([struct utmpx.ut_id, struct utmpx.ut_pid, struct utmpx.ut_tv, struct utmpx.ut_type], [], [], [
+       #include <sys/types.h>
+       #include <utmpx.h>
+    ])
+    dnl
+    dnl Check for ut_exit.__e_termination first, then ut_exit.e_termination
+    dnl
+    AC_CHECK_MEMBERS([struct utmpx.ut_exit.__e_termination], [AC_DEFINE(HAVE_STRUCT_UTMPX_UT_EXIT)], [
+       AC_CHECK_MEMBERS([struct utmpx.ut_exit.e_termination], [AC_DEFINE(HAVE_STRUCT_UTMPX_UT_EXIT)], [], [
+           #include <sys/types.h>
+           #include <utmpx.h>
+       ])
+    ], [
+       #include <sys/types.h>
+       #include <utmpx.h>
+    ])
+else
+    AC_CHECK_MEMBERS([struct utmp.ut_id, struct utmp.ut_pid, struct utmp.ut_tv, struct utmp.ut_type, struct utmp.ut_user], [], [], [
+       #include <sys/types.h>
+       #include <utmp.h>
+    ])
+    dnl
+    dnl Check for ut_exit.__e_termination first, then ut_exit.e_termination
+    dnl
+    AC_CHECK_MEMBERS([struct utmp.ut_exit.__e_termination], [AC_DEFINE(HAVE_STRUCT_UTMP_UT_EXIT)], [
+       AC_CHECK_MEMBERS([struct utmp.ut_exit.e_termination], [AC_DEFINE(HAVE_STRUCT_UTMP_UT_EXIT)], [], [
+           #include <sys/types.h>
+           #include <utmp.h>
+       ])
+    ], [
+       #include <sys/types.h>
+       #include <utmp.h>
+    ])
+fi
+CFLAGS="$_CFLAGS"
+
 dnl
 dnl Function checks
 dnl
-AC_CHECK_FUNCS(strchr strrchr memchr memcpy memset sysconf tzset \
-              seteuid setegid strftime setrlimit initgroups fstat)
-if test -z "$BROKEN_SETREUID"; then
-    AC_CHECK_FUNCS(setreuid)
+AC_FUNC_GETGROUPS
+AC_CHECK_FUNCS(glob strrchr sysconf tzset strftime setenv \
+              regcomp setlocale nl_langinfo mbr_check_membership \
+              setrlimit64)
+AC_REPLACE_FUNCS(getgrouplist)
+AC_CHECK_FUNCS(getline, [], [
+    AC_LIBOBJ(getline)
+    AC_CHECK_FUNCS(fgetln)
+])
+dnl
+dnl If libc supports _FORTIFY_SOURCE check functions, use it.
+dnl
+if test "$enable_hardening" != "no"; then
+    O_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2"
+    AC_CHECK_FUNC(__sprintf_chk, [
+       AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[char buf[4]; (void)sprintf(buf, "%s", "foo");]])], [OSDEFS="${OSDEFS} -D_FORTIFY_SOURCE=2"], [])
+    ], [])
+    CPPFLAGS="$O_CPPFLAGS"
 fi
-if test X"$with_interfaces" != X"no"; then
-    AC_CHECK_FUNCS(getifaddrs, AC_CHECK_FUNCS(freeifaddrs))
+
+utmp_style=LEGACY
+AC_CHECK_FUNCS(getutxid getutid, [utmp_style=POSIX; break])
+if test "$utmp_style" = "LEGACY"; then
+    AC_CHECK_FUNCS(getttyent ttyslot, [break])
+    AC_CHECK_FUNCS(fseeko)
 fi
-if test -n "$SECUREWARE"; then
-    AC_CHECK_FUNCS(bigcrypt set_auth_parameters initprivs)
+
+AC_CHECK_FUNCS(sysctl, [AC_CHECK_MEMBERS([struct kinfo_proc.ki_tdev], [],
+    [
+       AC_CHECK_MEMBERS([struct kinfo_proc2.p_tdev], [], [
+           AC_CHECK_MEMBERS([struct kinfo_proc.p_tdev], [], [
+               AC_CHECK_MEMBERS([struct kinfo_proc.kp_eproc.e_tdev], [], [], [
+                   #include <sys/param.h>
+                   #include <sys/sysctl.h>
+               ])
+           ], [
+               #include <sys/param.h>
+               #include <sys/sysctl.h>
+           ])
+       ],
+       [
+           #include <sys/param.h>
+           #include <sys/sysctl.h>
+       ])
+    ],
+    [
+       #include <sys/param.h>
+       #include <sys/sysctl.h>
+       #include <sys/user.h>
+    ])
+])
+
+AC_CHECK_FUNCS(openpty, [AC_CHECK_HEADERS(libutil.h util.h pty.h, [break])], [
+    AC_CHECK_LIB(util, openpty, [
+       AC_CHECK_HEADERS(libutil.h util.h pty.h, [break])
+       case "$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_FUNCS(getresuid)
+    ])
+fi
+if test -z "$SKIP_SETREUID"; then
+    AC_CHECK_FUNCS(setreuid, [SKIP_SETEUID=yes])
+fi
+if test -z "$SKIP_SETEUID"; then
+    AC_CHECK_FUNCS(seteuid)
+fi
+if test X"$with_interfaces" != X"no"; then
+    AC_CHECK_FUNCS(getifaddrs, [AC_CHECK_FUNCS(freeifaddrs)])
 fi
 if test -z "$BROKEN_GETCWD"; then
     AC_REPLACE_FUNCS(getcwd)
 fi
 AC_CHECK_FUNCS(lockf flock, [break])
-AC_CHECK_FUNCS(waitpid wait3, [break])
-AC_CHECK_FUNCS(innetgr _innetgr, AC_CHECK_FUNCS(getdomainname) [break])
-AC_CHECK_FUNCS(lsearch, , [AC_CHECK_LIB(compat, lsearch, AC_CHECK_HEADER(search.h, AC_DEFINE(HAVE_LSEARCH) [LIBS="${LIBS} -lcompat"], AC_LIBOBJ(lsearch)), AC_LIBOBJ(lsearch))])
-AC_CHECK_FUNCS(utime, SUDO_FUNC_UTIME_POSIX, AC_LIBOBJ(utime))
-SUDO_FUNC_FNMATCH(AC_DEFINE(HAVE_FNMATCH, 1, [Define if you have the `fnmatch' function.]), AC_LIBOBJ(fnmatch))
+AC_CHECK_FUNCS(innetgr _innetgr, [AC_CHECK_FUNCS(getdomainname) [break]])
+AC_CHECK_FUNCS(utimes, [AC_CHECK_FUNCS(futimes futimesat, [break])], [AC_CHECK_FUNCS(futime) AC_LIBOBJ(utimes)])
+AC_CHECK_FUNCS(killpg, [], [AC_LIBOBJ(killpg)])
+SUDO_FUNC_FNMATCH([AC_DEFINE(HAVE_FNMATCH)], [AC_LIBOBJ(fnmatch)
+    COMPAT_TEST_PROGS="${COMPAT_TEST_PROGS}${COMPAT_TEST_PROGS+ }fnm_test"
+])
 SUDO_FUNC_ISBLANK
-AC_REPLACE_FUNCS(strerror strcasecmp sigaction)
+AC_REPLACE_FUNCS(memrchr pw_dup strlcpy strlcat)
+AC_CHECK_FUNCS(nanosleep, [], [
+    # On Solaris, nanosleep is in librt
+    AC_CHECK_LIB(rt, nanosleep, [REPLAY_LIBS="${REPLAY_LIBS} -lrt"], [AC_LIBOBJ(nanosleep)])
+])
+AC_CHECK_FUNCS(closefrom, [], [AC_LIBOBJ(closefrom)
+    AC_CHECK_DECL(F_CLOSEM, AC_DEFINE(HAVE_FCNTL_CLOSEM), [],
+       [ #include <limits.h>
+         #include <fcntl.h> ])
+])
+AC_CHECK_FUNCS(mkstemps mkdtemp, [], [
+    AC_CHECK_FUNCS(random lrand48, [break])
+    AC_LIBOBJ(mktemp)
+])
 AC_CHECK_FUNCS(snprintf vsnprintf asprintf vasprintf, , [NEED_SNPRINTF=1])
+if test X"$ac_cv_type_struct_timespec" != X"no"; then
+    AC_CHECK_MEMBER([struct stat.st_mtim], [AC_DEFINE(HAVE_ST_MTIM)]
+       [AC_CHECK_MEMBER([struct stat.st_mtim.st__tim], AC_DEFINE(HAVE_ST__TIM))],
+       [AC_CHECK_MEMBER([struct stat.st_mtimespec], AC_DEFINE([HAVE_ST_MTIMESPEC]))])
+fi
+dnl
+dnl Check for the dirfd function/macro.  If not found, look for dd_fd in DIR.
+dnl
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+#include <$ac_header_dirent>]], [[DIR *d; (void)dirfd(d);]])], [AC_DEFINE(HAVE_DIRFD)], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+#include <$ac_header_dirent>]], [[DIR d; memset(&d, 0, sizeof(d)); return(d.dd_fd);]])], [AC_DEFINE(HAVE_DD_FD)], [])])
+AC_CHECK_MEMBERS([struct dirent.d_type], [], [], [
+AC_INCLUDES_DEFAULT
+#include <$ac_header_dirent>
+])
 dnl
 dnl If NEED_SNPRINTF is set, add snprintf.c to LIBOBJS
 dnl (it contains snprintf, vsnprintf, asprintf, and vasprintf)
@@ -1608,122 +2335,582 @@ if test -n "$NEED_SNPRINTF"; then
     AC_LIBOBJ(snprintf)
 fi
 dnl
-dnl if crypt(3) not in libc, look elsewhere
-dnl
-if test -z "$LIB_CRYPT"; then
-    AC_CHECK_FUNC(crypt, , [AC_CHECK_LIB(crypt, crypt, [SUDO_LIBS="${SUDO_LIBS} -lcrypt"; LIBS="${LIBS} -lcrypt"], AC_CHECK_LIB(crypt_d, crypt, [SUDO_LIBS="${SUDO_LIBS} -lcrypt_d"; LIBS="${LIBS} -lcrypt_d"], AC_CHECK_LIB(ufc, crypt, [SUDO_LIBS="${SUDO_LIBS} -lufc"; LIBS="${LIBS} -lufc"])))])
-fi
-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 In this case we look for main(), not socket() to avoid using a cached value
 dnl
-AC_CHECK_FUNC(socket, , [AC_CHECK_LIB(socket, socket, [NET_LIBS="${NET_LIBS} -lsocket"; LIBS="${LIBS} -lsocket"], AC_CHECK_LIB(inet, socket, [NET_LIBS="${NET_LIBS} -linet"; LIBS="${LIBS} -linet"], AC_MSG_WARN(unable to find socket() trying -lsocket -lnsl)
-AC_CHECK_LIB(socket, socket, [NET_LIBS="${NET_LIBS} -lsocket -lnsl"; LIBS="${LIBS} -lsocket -lnsl"], , -lnsl)))])
+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} $libs"; LIBS="${LIBS} $libs"; break], [], [$extralibs])
+    done
+])
 dnl
 dnl If inet_addr(3) not in libc, check -lnsl and -linet
 dnl May need to link with *both* -lnsl and -lsocket due to unresolved symbols
 dnl
-AC_CHECK_FUNC(inet_addr, , [AC_CHECK_FUNC(__inet_addr, , AC_CHECK_LIB(nsl, inet_addr, [NET_LIBS="${NET_LIBS} -lnsl"; LIBS="${LIBS} -lnsl"], AC_CHECK_LIB(inet, inet_addr, [NET_LIBS="${NET_LIBS} -linet"; LIBS="${LIBS} -linet"], AC_MSG_WARN(unable to find inet_addr() trying -lsocket -lnsl)
-AC_CHECK_LIB(socket, inet_addr, [NET_LIBS="${NET_LIBS} -lsocket -lnsl"; LIBS="${LIBS} -lsocket -lnsl"], , -lnsl))))])
+AC_CHECK_FUNC(inet_addr, [], [
+    AC_CHECK_FUNC(__inet_addr, [], [
+       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($lib, inet_addr, [NET_LIBS="${NET_LIBS} $libs"; LIBS="${LIBS} $libs"; break], [], [$extralibs])
+       done
+    ])
+])
 dnl
 dnl If syslog(3) not in libc, check -lsocket, -lnsl and -linet
 dnl
-AC_CHECK_FUNC(syslog, , [AC_CHECK_LIB(socket, syslog, [NET_LIBS="${NET_LIBS} -lsocket"; LIBS="${LIBS} -lsocket"], AC_CHECK_LIB(nsl, syslog, [NET_LIBS="${NET_LIBS} -lnsl"; LIBS="${LIBS} -lnsl"], AC_CHECK_LIB(inet, syslog, [NET_LIBS="${NET_LIBS} -linet"; LIBS="${LIBS} -linet"])))])
+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} $libs"; LIBS="${LIBS} $libs"; break], [], [$extralibs])
+    done
+])
+dnl
+dnl If getaddrinfo(3) not in libc, check -lsocket and -linet
+dnl May need to link with *both* -lnsl and -lsocket due to unresolved symbols.
+dnl
+AC_CHECK_FUNCS(getaddrinfo, [], [
+    found=no
+    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($lib, getaddrinfo, [NET_LIBS="${NET_LIBS} $libs"; LIBS="${LIBS} $libs"; found=yes; break], [], [$extralibs])
+    done
+    if test X"$found" != X"no"; then
+       AC_DEFINE(HAVE_GETADDRINFO)
+    fi
+])
+dnl
+dnl Check for getprogname() or __progname
+dnl
+AC_CHECK_FUNCS(getprogname, , [
+    AC_MSG_CHECKING([for __progname])
+    AC_CACHE_VAL(sudo_cv___progname, [
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[extern char *__progname; (void)puts(__progname);]])], [sudo_cv___progname=yes], [sudo_cv___progname=no])])
+    if test "$sudo_cv___progname" = "yes"; then
+       AC_DEFINE(HAVE___PROGNAME)
+    else
+       AC_LIBOBJ(getprogname)
+    fi
+    AC_MSG_RESULT($sudo_cv___progname)
+])
 dnl
-dnl Bison and DCE use alloca(3), if not in libc, use the sudo one (from gcc)
-dnl (gcc includes its own alloca(3) but other compilers may not)
+dnl Check for __func__ or __FUNCTION__
+dnl
+AC_MSG_CHECKING([for __func__])
+AC_CACHE_VAL(sudo_cv___func__, [
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[(void)puts(__func__);]])], [sudo_cv___func__=yes], [sudo_cv___func__=no])])
+AC_MSG_RESULT($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 support __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
+       CPPFLAGS="${CPPFLAGS} -I${enable_nls}/include"
+       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
+       AC_DEFINE(HAVE_LIBINTL_H)
+       SUDO_NLS=enabled
+    elif test "$sudo_cv_gettext_lintl" = "yes"; then
+       AC_DEFINE(HAVE_LIBINTL_H)
+       SUDO_NLS=enabled
+       LIBINTL="-lintl"
+    elif test "$sudo_cv_gettext_lintl_liconv" = "yes"; then
+       AC_DEFINE(HAVE_LIBINTL_H)
+       SUDO_NLS=enabled
+       LIBINTL="-lintl -liconv"
+    fi
+fi
+
 dnl
-if test "$with_DCE" = "yes" -o "$ac_cv_prog_YACC" = "bison -y"; then
-    AC_FUNC_ALLOCA
+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 "$enable_zlib" in
+    yes)
+       AC_CHECK_LIB(z, gzdopen, [
+           AC_CHECK_HEADERS(zlib.h, [ZLIB="-lz"], [enable_zlib=builtin])
+       ])
+       ;;
+    no)
+       ;;
+    system)
+       AC_DEFINE(HAVE_ZLIB_H)
+       ZLIB="-lz"
+       ;;
+    builtin)
+       # handled below
+       ;;
+    *)
+       AC_DEFINE(HAVE_ZLIB_H)
+       CPPFLAGS="-I${enable_zlib}/include ${CPPFLAGS}"
+       SUDO_APPEND_LIBPATH(ZLIB, [$enable_zlib/lib])
+       ZLIB="${ZLIB} -lz"
+       ;;
+esac
+if test X"$enable_zlib" = X"builtin"; then
+    AC_DEFINE(HAVE_ZLIB_H)
+    CPPFLAGS='-I$(top_builddir)/zlib -I$(top_srcdir)/zlib '"${CPPFLAGS}"
+    ZLIB="${ZLIB}"' $(top_builddir)/zlib/libz.la'
+    ZLIB_SRC=zlib
+    AC_CONFIG_HEADER([zlib/zconf.h])
+    AC_CONFIG_FILES([zlib/Makefile])
 fi
 
 dnl
-dnl Kerberos 5
+dnl Check for errno declaration in errno.h
 dnl
-if test "$with_kerb5" = "yes"; then
-    AC_DEFINE(HAVE_KERB5, 1, [Define if you use Kerberos V.])
-    if test -f "/usr/local/include/krb5.h"; then
-       CPPFLAGS="$CPPFLAGS -I/usr/local/include"
-    elif test -f "/usr/local/kerberos/include/krb5.h"; then
-       CPPFLAGS="$CPPFLAGS -I/usr/local/kerberos/include"
-    elif test -f "/usr/krb5/include/krb5.h"; then
-       CPPFLAGS="$CPPFLAGS -I/usr/krb5/include"
-    elif test -f "/usr/local/krb5/include/krb5.h"; then
-       CPPFLAGS="$CPPFLAGS -I/usr/local/krb5/include"
-    else
-       echo 'Unable to locate kerberos 5 include files, you will have to edit the Makefile and add -I/path/to/krb/includes to CPPFLAGS'
+AC_CHECK_DECLS([errno], [], [], [
+AC_INCLUDES_DEFAULT
+#include <errno.h>
+])
+
+dnl
+dnl Check for h_errno declaration in netdb.h
+dnl
+AC_CHECK_DECLS([h_errno], [], [], [
+AC_INCLUDES_DEFAULT
+#include <netdb.h>
+])
+
+dnl
+dnl Check for strsignal() or sys_siglist
+dnl
+AC_CHECK_FUNCS(strsignal, [], [
+    AC_LIBOBJ(strsignal)
+    HAVE_SIGLIST="false"
+    AC_CHECK_DECLS([sys_siglist, _sys_siglist, __sys_siglist], [
+       HAVE_SIGLIST="true"
+       break
+    ], [ ], [
+AC_INCLUDES_DEFAULT
+#include <signal.h>
+    ])
+    if test "$HAVE_SIGLIST" != "true"; then
+       AC_LIBOBJ(siglist)
     fi
+])
 
-    if test -f "/usr/local/lib/libkrb5.a"; then
-       SUDO_LDFLAGS="${SUDO_LDFLAGS} -L/usr/local/lib"
-    elif test -f "/usr/local/kerberos/lib/libkrb5.a"; then
-       SUDO_LDFLAGS="${SUDO_LDFLAGS} -L/usr/local/kerberos/lib"
-    elif test -f "/usr/krb5/lib/libkrb5.a"; then
-       SUDO_LDFLAGS="${SUDO_LDFLAGS} -L/usr/krb5/lib"
-    elif test -f "/usr/local/krb5/lib/libkrb5.a"; then
-       SUDO_LDFLAGS="${SUDO_LDFLAGS} -L/usr/local/krb5/lib"
-    else
-       echo 'Unable to locate kerberos 5 libraries, you will have to edit the Makefile and add -L/path/to/krb/libs to SUDO_LDFLAGS'
+dnl
+dnl Check for sig2str(), sys_signame or sys_sigabbrev
+dnl
+AC_CHECK_FUNCS(sig2str, [], [
+    AC_LIBOBJ(sig2str)
+    HAVE_SIGNAME="false"
+    AC_CHECK_DECLS([sys_signame, _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
+])
 
-    SUDO_LIBS="${SUDO_LIBS} -lkrb5 -lk5crypto -lcom_err"
-    AUTH_OBJS="${AUTH_OBJS} kerb5.o"
+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 PAM libs
+dnl Mutually exclusive auth checks come first, followed by
+dnl non-exclusive ones.  Note: passwd must be last of all!
 dnl
-if test "$with_pam" = "yes"; then
-    AC_HAVE_LIBRARY(dl, SUDO_LIBS="${SUDO_LIBS} -ldl -lpam", SUDO_LIBS="${SUDO_LIBS} -lpam")
+
+dnl
+dnl Convert default authentication methods to with_* if
+dnl no explicit authentication scheme was specified.
+dnl
+if test -z "${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 Find kerberos 4 includes and libs or complain
+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 X 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 $with_pam_login in
+           yes)        AC_DEFINE([HAVE_PAM_LOGIN])
+                       AC_MSG_CHECKING(whether to use PAM login)
+                       AC_MSG_RESULT(yes)
+                       ;;
+           no)         ;;
+           *)          AC_MSG_ERROR(["--with-pam-login does not take an argument."])
+                       ;;
+       esac])
+
+       AC_MSG_CHECKING(whether to use PAM session support)
+       AC_ARG_ENABLE(pam_session,
+       [AS_HELP_STRING([--disable-pam-session], [Disable PAM session support])],
+           [ case "$enableval" in
+               yes)    AC_MSG_RESULT(yes)
+                       ;;
+               no)             AC_MSG_RESULT(no)
+                           AC_DEFINE(NO_PAM_SESSION)
+                           ;;
+               *)              AC_MSG_RESULT(no)
+                           AC_MSG_WARN([Ignoring unknown argument to --enable-pam-session: $enableval])
+                           ;;
+           esac], AC_MSG_RESULT(yes))
+    fi
+fi
+
 dnl
-if test "$with_kerb4" = "yes"; then
-    AC_DEFINE(HAVE_KERB4, 1, [Define if you use Kerberos IV.])
-    if test -f "/usr/include/kerberosIV/krb.h"; then
-       CPPFLAGS="${CPPFLAGS} -I/usr/include/kerberosIV"
-    elif test -f "/usr/local/include/kerberosIV/krb.h"; then
-       CPPFLAGS="${CPPFLAGS} -I/usr/local/include/kerberosIV"
-    elif test -f "/usr/kerberos/include/krb.h"; then
-       CPPFLAGS="${CPPFLAGS} -I/usr/kerberos/include"
-    elif test -f "/usr/local/kerberos/include/krb.h"; then
-       CPPFLAGS="${CPPFLAGS} -I/usr/local/kerberos/include"
-    else
-       echo 'Unable to locate kerberos 4 include files, you will have to edit the Makefile and add -I/path/to/krb/includes to CPPFLAGS'
+dnl AIX general authentication
+dnl If set to "maybe" only enable if no other exclusive method in use.
+dnl
+if test ${with_aixauth-'no'} != "no"; then
+    if test X"$with_aixauth" != X"maybe" -o X"$AUTH_EXCL" = X""; then
+       AC_MSG_NOTICE([using AIX general authentication])
+       AC_DEFINE(HAVE_AIXAUTH)
+       AUTH_OBJS="$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 auth_type]] ']
+       [AUTH_EXCL=BSD_AUTH; BAMAN=1],
+       [AC_MSG_ERROR([BSD authentication was specified but bsd_auth.h could not be found])])
+fi
 
-    if test -d "/usr/kerberos/lib"; then
-       SUDO_LDFLAGS="${SUDO_LDFLAGS} -L/usr/kerberos/lib"
-    elif test -d "/usr/lib/kerberos"; then
-       SUDO_LDFLAGS="${SUDO_LDFLAGS} -L/usr/lib/kerberos"
-    elif test -f "/usr/local/lib/libkrb.a"; then
-       SUDO_LDFLAGS="${SUDO_LDFLAGS} -L/usr/local/lib"
-    elif test ! -f "/usr/lib/libkrb.a"; then
-       echo 'Unable to locate kerberos 4 libraries, you will have to edit the Makefile and add -L/path/to/krb/libs to SUDO_LDFLAGS'
+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
 
-    AC_HAVE_LIBRARY(des, SUDO_LIBS="${SUDO_LIBS} -lkrb -ldes", SUDO_LIBS="${SUDO_LIBS} -lkrb")
-    AUTH_OBJS="${AUTH_OBJS} kerb4.o"
+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, [${with_fwtk}])
+       CPPFLAGS="${CPPFLAGS} -I${with_fwtk}"
+       with_fwtk=yes
+    fi
+    SUDOERS_LIBS="${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
+    CPPFLAGS="${CPPFLAGS} -I${with_SecurID}"
+    SUDO_APPEND_LIBPATH(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="$AUTH_OBJS kerb5.lo"
+       CPPFLAGS="$CPPFLAGS `krb5-config --cflags`"
+       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])
+           CPPFLAGS="$CPPFLAGS -I${with_kerb5}/include"
+       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" = "yes"; then
+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 ${i}; then
-           SUDO_LDFLAGS="${SUDO_LDFLAGS} -L${i}"
+           SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [$i])
            FOUND_AFSLIBDIR=true
        fi
     done
     if test -z "$FOUND_AFSLIBDIR"; then
-       echo 'Unable to locate AFS libraries, you will have to edit the Makefile and add -L/path/to/afs/libs to SUDO_LDFLAGS or rerun configure with the --with-libpath options.'
+       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
@@ -1750,192 +2937,782 @@ if test "$with_AFS" = "yes"; then
     done
 
     if test -z "$FOUND_AFSLIBDIR"; then
-       echo 'Unable to locate AFS include dir, you may have to edit the Makefile and add -I/path/to/afs/includes to CPPFLAGS or rerun configure with the --with-incpath options.'
+       AC_MSG_WARN([Unable to locate AFS include dir, you may have to edit the Makefile and add -I/path/to/afs/includes to CPPFLAGS or rerun configure with the --with-incpath options.])
     fi
+
+    AUTH_OBJS="$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" = "yes"; then
+if test ${with_DCE-'no'} = "yes"; then
     DCE_OBJS="${DCE_OBJS} dce_pwent.o"
-    SUDO_LIBS="${SUDO_LIBS} -ldce"
+    SUDOERS_LIBS="${SUDOERS_LIBS} -ldce"
+    AUTH_OBJS="$AUTH_OBJS dce.lo"
 fi
 
 dnl
 dnl extra S/Key lib and includes
 dnl
-if test "$with_skey" = "yes"; then
-    SUDO_LIBS="${SUDO_LIBS} -lskey"
-    if test -f /usr/include/skey.h -a -f /usr/lib/libskey.a; then
-       :
-    elif test -f /usr/local/include/skey.h; then
-       CPPFLAGS="${CPPFLAGS} -I/usr/local/include"
-       SUDO_LDFLAGS="${SUDO_LDFLAGS} -L/usr/local/lib"
-    elif test "$with_csops" = "yes" -a -f /tools/cs/skey/include/skey.h -a -f /tools/cs/skey/lib/libskey.a; then
-       CPPFLAGS="${CPPFLAGS} -I/tools/cs/skey/include"
-       SUDO_LDFLAGS="${SUDO_LDFLAGS} -L/tools/cs/skey/lib"
+if test "${with_skey-'no'}" = "yes"; then
+    O_LDFLAGS="$LDFLAGS"
+    if test "$with_skey" != "yes"; then
+       CPPFLAGS="${CPPFLAGS} -I${with_skey}/include"
+       SUDO_APPEND_LIBPATH(LDFLAGS, [${with_skey}/lib])
+       SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${with_skey}/lib])
+       AC_CHECK_HEADER([skey.h], [found=yes], [found=no], [#include <stdio.h>])
     else
-       echo 'Unable to locate libskey.a and/or skey.h, you will have to edit the Makefile and add -L/path/to/skey/lib to SUDO_LDFLAGS and/or -I/path/to/skey.h to CPPFLAGS'
+       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="$O_CPPFLAGS"
+       else
+           SUDO_APPEND_LIBPATH(LDFLAGS, [${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, skeyaccess, AC_DEFINE(HAVE_SKEYACCESS, 1, [Define if your S/Key library has skeyaccess().]))
+    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 "$with_opie" = "yes"; then
-    SUDO_LIBS="${SUDO_LIBS} -lopie"
-    if test -f /usr/include/opie.h -a -f /usr/lib/libopie.a; then
-       :
-    elif test -f /usr/local/include/opie.h; then
-       CPPFLAGS="${CPPFLAGS} -I/usr/local/include"
-       SUDO_LDFLAGS="${SUDO_LDFLAGS} -L/usr/local/lib"
+if test "${with_opie-'no'}" = "yes"; then
+    O_LDFLAGS="$LDFLAGS"
+    if test "$with_opie" != "yes"; then
+       CPPFLAGS="${CPPFLAGS} -I${with_opie}/include"
+       SUDO_APPEND_LIBPATH(LDFLAGS, [${with_opie}/lib])
+       SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${with_opie}/lib])
+       AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[#include <opie.h>]])], [found=yes], [found=no])
     else
-       echo 'Unable to locate libopie.a and/or opie.h, you will have to edit the Makefile and add -L/path/to/opie/lib to SUDO_LDFLAGS and/or -I/path/to/opie.h to CPPFLAGS'
+       found=no
+       O_CPPFLAGS="$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
+           SUDO_APPEND_LIBPATH(LDFLAGS, [${dir}/lib])
+           SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${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 extra SecurID lib + includes
-dnl
-if test -n "$with_SecurID" -a "$with_SecurID" != "no"; then
-    if test "$with_SecurID" != "yes"; then
-       SUDO_LIBS="${SUDO_LIBS} ${with_SecurID}/sdiclient.a"
-       CPPFLAGS="${CPPFLAGS} -I${with_SecurID}"
-    elif test -f /usr/ace/examples/sdiclient.a; then
-       SUDO_LIBS="${SUDO_LIBS} /usr/ace/examples/sdiclient.a"
-       CPPFLAGS="${CPPFLAGS} -I/usr/ace/examples"
-    else
-       SUDO_LIBS="${SUDO_LIBS} /usr/ace/sdiclient.a"
-       CPPFLAGS="${CPPFLAGS} -I/usr/ace"
+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" && SUDOERS_LIBS="${SUDOERS_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 "$found" = "yes"; then
+           SUDOERS_LIBS="$SUDOERS_LIBS $shadow_libs"
+       elif test -n "$shadow_libs_optional"; then
+           LIBS="$LIBS $shadow_libs_optional"
+           AC_CHECK_FUNCS($shadow_funcs, [found=yes])
+           if test "$found" = "yes"; then
+               SUDOERS_LIBS="$SUDOERS_LIBS $shadow_libs $shadow_libs_optional"
+           fi
+       fi
+       if test "$found" = "yes"; then
+           case "$shadow_funcs" in
+               *getprpwnam*) SECUREWARE=1;;
+           esac
+           test -n "$shadow_defs" && OSDEFS="${OSDEFS} $shadow_defs"
+       else
+           LIBS="$_LIBS"
+       fi
+       CHECKSHADOW=false
+    fi
+    if test "$CHECKSHADOW" = "true"; then
+       AC_SEARCH_LIBS([getspnam], [gen], [AC_DEFINE(HAVE_GETSPNAM)] [CHECKSHADOW=false; test -n "$ac_lib" && SUDOERS_LIBS="${SUDOERS_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 "$ac_lib" && SUDOERS_LIBS="${SUDOERS_LIBS} $ac_res"])
+    fi
+    if test -n "$SECUREWARE"; then
+       AC_CHECK_FUNCS(bigcrypt set_auth_parameters initprivs)
+       AUTH_OBJS="$AUTH_OBJS secureware.lo"
     fi
 fi
 
 dnl
-dnl extra FWTK libs + includes
+dnl extra lib and .o file for LDAP support
 dnl
-if test "$with_fwtk" = "yes"; then
-    SUDO_LIBS="${SUDO_LIBS} -lauth -lfwall"
+if test ${with_ldap-'no'} != "no"; then
+    _LDFLAGS="$LDFLAGS"
+    if test "$with_ldap" != "yes"; then
+       SUDO_APPEND_LIBPATH(SUDOERS_LDFLAGS, [${with_ldap}/lib])
+       SUDO_APPEND_LIBPATH(LDFLAGS, [${with_ldap}/lib])
+       CPPFLAGS="${CPPFLAGS} -I${with_ldap}/include"
+       with_ldap=yes
+    fi
+    SUDOERS_OBJS="${SUDOERS_OBJS} ldap.lo"
+    LDAP=""
+
+    AC_MSG_CHECKING([for LDAP libraries])
+    LDAP_LIBS=""
+    _LIBS="$LIBS"
+    found=no
+    for l in -lldap -llber '-lssl -lcrypto'; do
+       LIBS="${LIBS} $l"
+       LDAP_LIBS="${LDAP_LIBS} $l"
+       AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+       #include <lber.h>
+       #include <ldap.h>]], [[(void)ldap_init(0, 0)]])], [found=yes; break])
+    done
+    if test "$found" = "no"; then
+       LDAP_LIBS=""
+       LIBS="$_LIBS"
+       for l in -libmldap -lidsldif; do
+           LIBS="${LIBS} $l"
+           LDAP_LIBS="${LDAP_LIBS} $l"
+           AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+           #include <lber.h>
+           #include <ldap.h>]], [[(void)ldap_init(0, 0)]])], [found=yes; break])
+       done
+    fi
+    dnl if nothing linked just try with -lldap
+    if test "$found" = "no"; then
+       LIBS="${_LIBS} -lldap"
+       LDAP_LIBS="-lldap"
+       AC_MSG_RESULT([not found, using -lldap])
+    else
+       AC_MSG_RESULT([$LDAP_LIBS])
+    fi
+    dnl check if we need to link with -llber for ber_set_option
+    OLIBS="$LIBS"
+    AC_SEARCH_LIBS([ber_set_option], [lber], [found=yes], [found=no])
+    if test X"$found" = X"yes" -a X"$LIBS" != X"$OLIBS"; then
+       LDAP_LIBS="$LDAP_LIBS -llber"
+    fi
+    dnl check if ldap.h includes lber.h for us
+    AC_MSG_CHECKING([whether lber.h is needed])
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+    #include <ldap.h>]], [[(void)ldap_init(0, 0)]])], [AC_MSG_RESULT([no])], [
+    AC_MSG_RESULT([yes])
+    AC_DEFINE(HAVE_LBER_H)])
+
+    AC_CHECK_HEADERS([sasl/sasl.h] [sasl.h], [AC_CHECK_FUNCS(ldap_sasl_interactive_bind_s)], [break])
+    AC_CHECK_HEADERS([ldap_ssl.h] [mps/ldap_ssl.h], [break], [], [#include <ldap.h>])
+    AC_CHECK_FUNCS(ldap_initialize ldap_start_tls_s ldapssl_init ldapssl_set_strength ldap_unbind_ext_s ldap_str2dn ldap_create ldap_sasl_bind_s ldap_ssl_init ldap_ssl_client_init ldap_start_tls_s_np)
+    AC_CHECK_FUNCS(ldap_search_ext_s ldap_search_st, [break])
+
+    if test X"$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="$_LDFLAGS"
+fi
+
+#
+# How to do dynamic object loading.
+# We support dlopen() and sh_load(), else fall back to static loading.
+#
+case "$lt_cv_dlopen" in
+    dlopen)
+       AC_DEFINE(HAVE_DLOPEN)
+       SUDOERS_OBJS="$SUDOERS_OBJS plugin_error.lo"
+       LT_STATIC="--tag=disable-static"
+       ;;
+    shl_load)
+       AC_DEFINE(HAVE_SHL_LOAD)
+       SUDOERS_OBJS="$SUDOERS_OBJS plugin_error.lo"
+       LT_STATIC="--tag=disable-static"
+       AC_LIBOBJ(dlopen)
+       ;;
+    *)
+       if test X"${ac_cv_func_dlopen}" = X"yes"; then
+           AC_MSG_ERROR(["dlopen present but libtool doesn't appear to support your platform."])
+       fi
+       # Preload sudoers module symbols
+       SUDO_OBJS="${SUDO_OBJS} preload.o"
+       SUDO_LIBS="${SUDO_LIBS} \$(top_builddir)/plugins/sudoers/sudoers.la"
+       LT_STATIC=""
+       AC_LIBOBJ(dlopen)
+       ;;
+esac
+
+#
+# Add library needed for dynamic loading, if any.
+#
+LIBDL="$lt_cv_dlopen_libs"
+if test X"$LIBDL" != X""; then
+    SUDO_LIBS="${SUDO_LIBS} $LIBDL"
+    SUDOERS_LIBS="${SUDOERS_LIBS} $LIBDL"
 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 "$host" in
+    *-*-hpux*)
+       AC_CHECK_LIB(pthread, main, [SUDO_LIBS="${SUDO_LIBS} -lpthread"])
+       ;;
+esac
+
 dnl
-dnl extra 'authenticate' lib (AIX only?)
+dnl Add $blibpath to SUDOERS_LDFLAGS if specified by the user or if we
+dnl added -L dirpaths to SUDOERS_LDFLAGS.
 dnl
-if test "$with_authenticate" = "yes"; then
-    SUDO_LIBS="${SUDO_LIBS} -ls"
+if test -n "$blibpath"; then
+    if test -n "$blibpath_add"; then
+       SUDOERS_LDFLAGS="$SUDOERS_LDFLAGS -Wl,-blibpath:${blibpath}${blibpath_add}"
+    elif test -n "$with_blibpath" -a "$with_blibpath" != "yes"; then
+       SUDOERS_LDFLAGS="$SUDOERS_LDFLAGS -Wl,-blibpath:${blibpath}"
+    fi
 fi
 
 dnl
-dnl Check for log file and timestamp locations
+dnl Check for log file, timestamp and iolog locations
 dnl
+if test "$utmp_style" = "LEGACY"; then
+    SUDO_PATH_UTMP
+fi
 SUDO_LOGFILE
 SUDO_TIMEDIR
+SUDO_IO_LOGDIR
 
 dnl
-dnl Use passwd (and secureware) auth modules?
+dnl Turn warnings into errors.
+dnl All compiler/loader tests after this point will fail if
+dnl a warning is displayed (nornally, warnings are not fata).
 dnl
-if test "$with_passwd" = "no"; then
-    AC_DEFINE(WITHOUT_PASSWD, 1. [Define to avoid using the passwd/shadow file for authentication.])
-    if test -z "$AUTH_OBJS"; then
-       AC_MSG_ERROR([no authentication methods defined.])
-    fi
+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 "$GCC"; then
+    AX_CHECK_COMPILE_FLAG([-static-libgcc], [LT_LDFLAGS="$LT_LDFLAGS -Wc,-static-libgcc"])
+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=
+       NO_VIZ=
+    ])
 else
-    if test -n "$SECUREWARE"; then
-       AUTH_OBJS="${AUTH_OBJS} passwd.o secureware.o"
+    case "$host" in
+       *-*-hpux*)
+           AX_CHECK_COMPILE_FLAG([-Bhidden_def], [
+               AC_DEFINE(HAVE_DSO_VISIBILITY)
+               CFLAGS="${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 "$lt_cv_prog_gnu_ld" = "yes"; then
+       AC_CACHE_CHECK([whether ld supports anonymous map files],
+           [sudo_cv_var_gnu_ld_anon_map],
+           [
+               cat > conftest.map <<-EOF
+               {
+                   global: foo;
+                   local:  *;
+               };
+EOF
+               _CFLAGS="$CFLAGS"
+               CFLAGS="$CFLAGS $lt_prog_compiler_pic"
+               _LDFLAGS="$LDFLAGS"
+               LDFLAGS="$LDFLAGS -fpic -shared -Wl,--version-script,./conftest.map"
+               AC_TRY_LINK([int foo;], [], [
+                   sudo_cv_var_gnu_ld_anon_map=yes
+               ])
+               CFLAGS="$_CFLAGS"
+               LDFLAGS="$_LDFLAGS"
+           ]
+       )
+       if test "$sudo_cv_var_gnu_ld_anon_map" = "yes"; then
+           LT_LDEXPORTS=; LT_LDDEP="\$(shlib_map)"; LT_LDMAP="-Wl,--version-script,\$(shlib_map)"
+       fi
     else
-       AUTH_OBJS="${AUTH_OBJS} passwd.o"
+       case "$host" in
+           *-*-solaris2*)
+               AC_CACHE_CHECK([whether ld supports anonymous map files],
+                   [sudo_cv_var_solaris_ld_anon_map],
+                   [
+                       cat > conftest.map <<-EOF
+                       {
+                           global: foo;
+                           local:  *;
+                       };
+EOF
+                       _CFLAGS="$CFLAGS"
+                       CFLAGS="$CFLAGS $lt_prog_compiler_pic"
+                       _LDFLAGS="$LDFLAGS"
+                       LDFLAGS="$LDFLAGS -shared -Wl,-M,./conftest.map"
+                       AC_TRY_LINK([int foo;], [], [
+                           sudo_cv_var_solaris_ld_anon_map=yes
+                       ])
+                       CFLAGS="$_CFLAGS"
+                       LDFLAGS="$_LDFLAGS"
+                   ]
+               )
+               if test "$sudo_cv_var_solaris_ld_anon_map" = "yes"; then
+                   LT_LDEXPORTS=; LT_LDDEP="\$(shlib_map)"; LT_LDMAP="-Wl,-M,\$(shlib_map)"
+               fi
+               ;;
+           *-*-hpux*)
+               AC_CACHE_CHECK([whether ld supports controlling exported symbols],
+                   [sudo_cv_var_hpux_ld_symbol_export],
+                   [
+                       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="$LDFLAGS -Wl,-b -Wl,-c,./conftest.opt"
+                       fi
+                       AC_TRY_LINK([int foo;], [], [
+                           sudo_cv_var_hpux_ld_symbol_export=yes
+                       ])
+                       CFLAGS="$_CFLAGS"
+                       LDFLAGS="$_LDFLAGS"
+                   ]
+               )
+               if test "$sudo_cv_var_hpux_ld_symbol_export" = "yes"; then
+                   LT_LDEXPORTS=; LT_LDDEP="\$(shlib_opt)"; LT_LDOPT="-Wl,-c,\$(shlib_opt)"
+               fi
+               ;;
+       esac
+    fi
+fi
+
+dnl
+dnl Check for PIE executable support if using gcc.
+dnl This test relies on AC_LANG_WERROR
+dnl
+if test "$enable_pie" != "no" -a -n "$GCC"; then
+    AX_CHECK_COMPILE_FLAG([-fPIE], [
+       _CFLAGS="$CFLAGS"
+       CFLAGS="$CFLAGS -fPIE"
+       AX_CHECK_LINK_FLAG([-pie], [
+           PIE_CFLAGS="-fPIE"
+           PIE_LDFLAGS="-pie"
+       ])
+       CFLAGS="$_CFLAGS"
+    ])
+fi
+
+dnl
+dnl Check for -fstack-protector and -z relro support
+dnl This test relies on AC_LANG_WERROR
+dnl
+if test "$enable_hardening" != "no"; then
+    if test -n "$GCC"; then
+       AX_CHECK_COMPILE_FLAG([-fstack-protector-all], [
+           AX_CHECK_LINK_FLAG([-fstack-protector-all], [
+               SSP_CFLAGS="-fstack-protector-all"
+               SSP_LDFLAGS="-Wc,-fstack-protector-all"
+           ])
+       ])
+       if test -z "$SSP_CFLAGS"; then
+           AX_CHECK_COMPILE_FLAG([-fstack-protector], [
+               AX_CHECK_LINK_FLAG([-fstack-protector], [
+                   SSP_CFLAGS="-fstack-protector"
+                   SSP_LDFLAGS="-Wc,-fstack-protector"
+               ])
+           ])
+       fi
     fi
+    AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="${LDFLAGS} -Wl,-z,relro"])
 fi
 
 dnl
-dnl LIBS may contain duplicates from SUDO_LIBS or NET_LIBS so prune it.
+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} ${NET_LIBS}; do
+       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 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"
+    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"; 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} libsudo_noexec.la"
+       INSTALL_NOEXEC="install-noexec"
+
+       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/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, "$sesh_file", [The fully qualified pathname of sesh])
+    fi
+    PLUGINDIR="$with_plugindir"
+    _PLUGINDIR=
+    while test X"$PLUGINDIR" != X"$_PLUGINDIR"; do
+       _PLUGINDIR="$PLUGINDIR"
+       eval PLUGINDIR="$_PLUGINDIR"
+    done
+    SUDO_DEFINE_UNQUOTED(_PATH_SUDO_PLUGIN_DIR, "$PLUGINDIR/")
+    SUDO_DEFINE_UNQUOTED(SUDOERS_PLUGIN, "sudoers${SOEXT}")
+    exec_prefix="$oexec_prefix"
+fi
+
+dnl
+dnl Override default configure dirs for the Makefile
+dnl
+if test X"$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' -a X"$with_stow" != X"yes" && sysconfdir='/etc'
+
 dnl
 dnl Substitute into the Makefile and man pages
 dnl
-AC_OUTPUT([Makefile sudo.man visudo.man sudoers.man])
+AC_CONFIG_FILES([Makefile common/Makefile compat/Makefile doc/Makefile include/Makefile src/sudo_usage.h src/Makefile plugins/sample/Makefile plugins/sample_group/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
-    echo ""
     case $host 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*)
-           echo "You will need to customize sample.pam and install it as /etc/pam.d/sudo"
+           AC_MSG_NOTICE([You will need to customize sample.pam and install it as /etc/pam.d/sudo])
            ;;
     esac
-    echo ""
 fi
 
 dnl
-dnl Special bits for autoheader   
+dnl Autoheader templates
+dnl
+AH_TEMPLATE(BROKEN_SYSLOG, [Define to 1 if the `syslog' function returns a non-zero int to denote failure.])
+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(SUDOERS_PLUGIN, [The name of the sudoers plugin, including extension.])
+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_GETAUTHUID, [Define to 1 if you have the `getauthuid' function. (ULTRIX 4.x  shadow passwords)])
+AH_TEMPLATE(HAVE_GETPRPWNAM, [Define to 1 if you have the `getprpwnam' function.  (SecureWare-style shadow passwords)])
+AH_TEMPLATE(HAVE_GETPWANAM, [Define to 1 if you have the `getpwanam' function. (SunOS 4.x shadow passwords)])
+AH_TEMPLATE(HAVE_GETSPNAM, [Define to 1 if you have the `getspnam' function (SVR4-style shadow passwords)])
+AH_TEMPLATE(HAVE_GETSPWUID, [Define to 1 if you have the `getspwuid' function. (HP-UX <= 9.X 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_ISCOMSEC, [Define to 1 if you have the `iscomsec' function. (HP-UX >= 10.x check for shadow enabled)])
+AH_TEMPLATE(HAVE_ISSECURE, [Define to 1 if you have the `issecure' function. (SunOS 4.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_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_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_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(NO_TTY_TICKETS, [Define to 1 if you want a single ticket file instead of per-tty files.])
+AH_TEMPLATE(PC_INSULTS, [Define to 1 to replace politically incorrect insults with less offensive ones.])
+AH_TEMPLATE(SECURE_PATH, [Define to 1 to override the user's path with a built-in one.])
+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(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(sig_atomic_t, [Define to `int' if <signal.h> does not define.])
+AH_TEMPLATE(__signed, [Define to `signed' or nothing if compiler does not support a signed type qualifier.])
+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(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.])
+
+dnl
+dnl Bits to copy verbatim into config.h.in
 dnl
-AH_VERBATIM([_GNU_SOURCE],
-[/* Enable GNU extensions on systems that have them. */
-#ifndef _GNU_SOURCE
-# define _GNU_SOURCE   1
-#endif])
-
-AH_VERBATIM([_ALL_SOURCE],
-[/* Enable non-POSIX extensions on AIX. */
-#ifndef _ALL_SOURCE
-# undef _ALL_SOURCE
-#endif])
-
-AH_VERBATIM([_CONVEX_SOURCE],
-[/* Enable non-POSIX extensions on ConvexOS. */
-#ifndef _CONVEX_SOURCE
-# undef _CONVEX_SOURCE
-#endif])
-
 AH_TOP([#ifndef _SUDO_CONFIG_H
 #define _SUDO_CONFIG_H])
 
 AH_BOTTOM([/*
- * Emulate a subset of waitpid() if we don't have it.
+ * Macros to convert ctime and mtime into timevals.
  */
-#ifdef HAVE_WAITPID
-# define sudo_waitpid(p, s, o) waitpid(p, s, o)
-#else
-# ifdef HAVE_WAIT3
-#  define sudo_waitpid(p, s, o)        wait3(s, o, NULL)
+#define timespec2timeval(_ts, _tv) do {                                        \
+    (_tv)->tv_sec = (_ts)->tv_sec;                                     \
+    (_tv)->tv_usec = (_ts)->tv_nsec / 1000;                            \
+} while (0)
+
+#ifdef HAVE_ST_MTIM
+# ifdef HAVE_ST__TIM
+#  define ctim_get(_x, _y)     timespec2timeval(&(_x)->st_ctim.st__tim, (_y))
+#  define mtim_get(_x, _y)     timespec2timeval(&(_x)->st_mtim.st__tim, (_y))
+# else
+#  define ctim_get(_x, _y)     timespec2timeval(&(_x)->st_ctim, (_y))
+#  define mtim_get(_x, _y)     timespec2timeval(&(_x)->st_mtim, (_y))
 # endif
-#endif
-
-/* Solaris doesn't use const qualifiers in PAM. */
-#ifdef sun
-# define PAM_CONST
 #else
-# define PAM_CONST     const
+# ifdef HAVE_ST_MTIMESPEC
+#  define ctim_get(_x, _y)     timespec2timeval(&(_x)->st_ctimespec, (_y))
+#  define mtim_get(_x, _y)     timespec2timeval(&(_x)->st_mtimespec, (_y))
+# else
+#  define ctim_get(_x, _y)     do { (_y)->tv_sec = (_x)->st_ctime; (_y)->tv_usec = 0; } while (0)
+#  define mtim_get(_x, _y)     do { (_y)->tv_sec = (_x)->st_mtime; (_y)->tv_usec = 0; } while (0)
+# endif /* HAVE_ST_MTIMESPEC */
+#endif /* HAVE_ST_MTIM */
+
+#ifdef __GNUC__
+# define ignore_result(x) do {                                                \
+    __typeof__(x) y = (x);                                                    \
+    (void)y;                                                                  \
+} while(0)
+#else
+# define ignore_result(x)      (void)(x)
 #endif
 
-#ifdef USE_EXECV
-# define EXEC  execv
-#else
-# define EXEC  execvp
-#endif /* USE_EXECV */
+/* Macros to set/clear/test flags. */
+#undef SET
+#define SET(t, f)      ((t) |= (f))
+#undef CLR
+#define CLR(t, f)      ((t) &= ~(f))
+#undef ISSET
+#define ISSET(t, f)     ((t) & (f))
 
-/* New ANSI-style OS defs for HP-UX and ConvexOS. */
+/* ANSI-style OS defs for HP-UX and ConvexOS. */
 #if defined(hpux) && !defined(__hpux)
 # define __hpux                1
 #endif /* hpux */