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	diff --git a/INSTALL.md b/INSTALL.md
	index aa54620ec4..6050534d45 100644
	--- a/INSTALL.md
	+++ b/INSTALL.md
	@@ -1,79 +1,79 @@
	# How to Install Pacemaker

	## Build Dependencies

	\| Version \| Fedora-based \| Suse-based \| Debian-based \|
	\|:---------------:\|:------------------:\|:------------------:\|:--------------:\|
	-\| 1.11 or later \| automake \| automake \| automake \|
	+\| 1.13 or later \| automake \| automake \| automake \|
	\| 2.64 or later \| autoconf \| autoconf \| autoconf \|
	\| \| libtool \| libtool \| libtool \|
	\| \| libtool-ltdl-devel \| \| libltdl-dev \|
	\| \| libuuid-devel \| libuuid-devel \| uuid-dev \|
	\| \| pkgconfig \| pkgconfig \| pkg-config \|
	\| 2.32.0 or later \| glib2-devel \| glib2-devel \| libglib2.0-dev \|
	\| \| libxml2-devel \| libxml2-devel \| libxml2-dev \|
	\| \| libxslt-devel \| libxslt-devel \| libxslt-dev \|
	\| \| bzip2-devel \| libbz2-devel \| libbz2-dev \|
	\| 0.17.0 or later \| libqb-devel \| libqb-devel \| libqb-dev \|
	\| 3.4 or later \| python3 \| python3 \| python3 \|

	Also: GNU make

	### Cluster Stack Dependencies

	Only corosync is currently supported

	\| Version \| Fedora-based \| Suse-based \| Debian-based \|
	\|:---------------:\|:------------------:\|:------------------:\|:--------------:\|
	\| 2.0.0 or later \| corosynclib \| libcorosync \| corosync \|
	\| 2.0.0 or later \| corosynclib-devel \| libcorosync-devel \| \|
	\| \| \| \| libcfg-dev \|
	\| \| \| \| libcpg-dev \|
	\| \| \| \| libcmap-dev \|
	\| \| \| \| libquorum-dev \|

	### Optional Build Dependencies

	\| Feature Enabled \| Version \| Fedora-based \| Suse-based \| Debian-based \|
	\|:-----------------------------------------------:\|:--------------:\|:-----------------------:\|:-----------------------:\|:-----------------------:\|
	\| Pacemaker Remote and encrypted remote CIB admin \| 2.12.0 or later\| gnutls-devel \| libgnutls-devel \| libgnutls-dev \|
	\| encrypted remote CIB admin \| \| pam-devel \| pam-devel \| libpam0g-dev \|
	\| interactive crm_mon \| \| ncurses-devel \| ncurses-devel \| ncurses-dev \|
	\| systemd support \| \| systemd-devel \| systemd-devel \| libsystemd-dev \|
	\| systemd/upstart resource support \| \| dbus-devel \| dbus-devel \| libdbus-1-dev \|
	\| Linux-HA style fencing agents \| \| cluster-glue-libs-devel \| libglue-devel \| cluster-glue-dev \|
	\| documentation \| \| asciidoc or asciidoctor \| asciidoc or asciidoctor \| asciidoc or asciidoctor \|
	\| documentation \| \| help2man \| help2man \| help2man \|
	\| documentation \| \| inkscape \| inkscape \| inkscape \|
	\| documentation \| \| docbook-style-xsl \| docbook-xsl-stylesheets \| docbook-xsl \|
	\| documentation \| \| python3-sphinx \| python3-sphinx \| python3-sphinx \|
	\| documentation (PDF) \| \| texlive, texlive-titlesec, texlive-framed, texlive-threeparttable texlive-wrapfig texlive-multirow \| texlive, texlive-latex \| texlive, texlive-latex-extra \|
	\| RPM packages via "make rpm" \| 4.11 or later \| rpm \| rpm \| (n/a) \|

	## Optional testing dependencies
	* procps and psmisc (if running cts-exec, cts-fencing, or CTS)
	* valgrind (if running CTS valgrind tests)
	* python3-systemd (if using CTS on cluster nodes running systemd)
	* rsync (if running CTS container tests)
	* libvirt-daemon-driver-lxc (if running CTS container tests)
	* libvirt-daemon-lxc (if running CTS container tests)
	* libvirt-login-shell (if running CTS container tests)
	* nmap (if not specifying an IP address base)
	* oprofile (if running CTS profiling tests)
	* dlm (to log DLM debugging info after CTS tests)

	## Simple install

	$ make && sudo make install

	If GNU make is not your default make, use "gmake" instead.

	## Detailed install

	First, browse the build options that are available:

	$ ./autogen.sh
	$ ./configure --help

	Re-run ./configure with any options you want, then proceed with the simple
	method.
	diff --git a/configure.ac b/configure.ac
	index e3cbaba687..b306348735 100644
	--- a/configure.ac
	+++ b/configure.ac
	@@ -1,2035 +1,2034 @@
	dnl
	dnl autoconf for Pacemaker
	dnl
	dnl Copyright 2009-2021 the Pacemaker project contributors
	dnl
	dnl The version control history for this file may have further details.
	dnl
	dnl This source code is licensed under the GNU General Public License version 2
	dnl or later (GPLv2+) WITHOUT ANY WARRANTY.

	dnl ===============================================
	dnl Bootstrap
	dnl ===============================================
	AC_PREREQ(2.64)

	dnl AC_CONFIG_MACRO_DIR is deprecated as of autoconf 2.70 (2020-12-08).
	dnl Once we can require that version, we can simplify this, and no longer
	dnl need ACLOCAL_AMFLAGS in Makefile.am.
	m4_ifdef([AC_CONFIG_MACRO_DIRS],
	[AC_CONFIG_MACRO_DIRS([m4])],
	[AC_CONFIG_MACRO_DIR([m4])])

	AC_DEFUN([AC_DATAROOTDIR_CHECKED])

	dnl Suggested structure:
	dnl information on the package
	dnl checks for programs
	dnl checks for libraries
	dnl checks for header files
	dnl checks for types
	dnl checks for structures
	dnl checks for compiler characteristics
	dnl checks for library functions
	dnl checks for system services

	m4_include([m4/version.m4])
	AC_INIT([pacemaker], VERSION_NUMBER, [users@clusterlabs.org], [pacemaker],
	PCMK_URL)

	PCMK_FEATURES=""

	LT_CONFIG_LTDL_DIR([libltdl])
	AC_CONFIG_AUX_DIR([libltdl/config])
	AC_CANONICAL_HOST

	dnl Where #defines that autoconf makes (e.g. HAVE_whatever) go
	dnl
	dnl Internal header: include/config.h
	dnl - Contains ALL defines
	dnl - include/config.h.in is generated automatically by autoheader
	dnl - NOT to be included in any header files except crm_internal.h
	dnl (which is also not to be included in any other header files)
	dnl
	dnl External header: include/crm_config.h
	dnl - Contains a subset of defines checked here
	dnl - Manually edit include/crm_config.h.in to have configure include
	dnl new defines
	dnl - Should not include HAVE_* defines
	dnl - Safe to include anywhere
	AC_CONFIG_HEADERS([include/config.h include/crm_config.h])

	-dnl 1.11: minimum automake version required
	+dnl 1.13: minimum automake version required
	dnl foreign: don't require GNU-standard top-level files
	dnl tar-ustar: use (older) POSIX variant of generated tar rather than v7
	-dnl silent-rules: allow "--enable-silent-rules" (no-op in 1.13+)
	dnl subdir-objects: keep .o's with their .c's (no-op in 2.0+)
	-AM_INIT_AUTOMAKE([1.11 foreign tar-ustar silent-rules subdir-objects])
	+AM_INIT_AUTOMAKE([1.13 foreign tar-ustar subdir-objects])

	dnl Require pkg-config (with a minimum version)
	PKG_PROG_PKG_CONFIG(0.18)
	AS_IF([test "x${PKG_CONFIG}" != x], [],
	[AC_MSG_FAILURE([Could not find required build tool pkg-config (0.18 or later)])])
	dnl PKG_NOARCH_INSTALLDIR is not available prior to pkg-config 0.27 and
	dnl pkgconf 0.8.10 (uncomment next line to mimic that scenario)
	dnl m4_ifdef([PKG_NOARCH_INSTALLDIR], [m4_undefine([PKG_NOARCH_INSTALLDIR])])
	m4_ifndef([PKG_NOARCH_INSTALLDIR], [
	AC_DEFUN([PKG_NOARCH_INSTALLDIR], [
	AC_SUBST([noarch_pkgconfigdir], ['${datadir}/pkgconfig'])
	])
	])
	PKG_NOARCH_INSTALLDIR

	dnl Example 2.4. Silent Custom Rule to Generate a File
	dnl %-bar.pc: %.pc
	dnl $(AM_V_GEN)$(LN_S) $(notdir $^) $@

	dnl Versioned attributes implementation is not yet production-ready
	AC_DEFINE_UNQUOTED(ENABLE_VERSIONED_ATTRS, 0, [Enable versioned attributes])

	CC_IN_CONFIGURE=yes
	export CC_IN_CONFIGURE

	LDD=ldd

	GLIB_TESTS

	dnl ========================================================================
	dnl Compiler characteristics
	dnl ========================================================================

	dnl A particular compiler can be forced by setting the CC environment variable
	AC_PROG_CC

	dnl Use at least C99 if possible. This will generate an "obsolete" warning
	dnl since autoconf 2.70, but is needed for older versions.
	AC_PROG_CC_STDC

	dnl C++ is not needed for build, just maintainer utilities
	AC_PROG_CXX

	dnl We use md5.c from gnulib, which has its own m4 macros. Per its docs:
	dnl "The macro gl_EARLY must be called as soon as possible after verifying that
	dnl the C compiler is working. ... The core part of the gnulib checks are done
	dnl by the macro gl_INIT." In addition, prevent gnulib from introducing OpenSSL
	dnl as a dependency.
	gl_EARLY
	gl_SET_CRYPTO_CHECK_DEFAULT([no])
	gl_INIT

	# --enable-new-dtags: Use RUNPATH instead of RPATH.
	# It is necessary to have this done before libtool does linker detection.
	# See also: https://github.com/kronosnet/kronosnet/issues/107
	AX_CHECK_LINK_FLAG([-Wl,--enable-new-dtags],
	[AM_LDFLAGS=-Wl,--enable-new-dtags],
	[AC_MSG_ERROR(["Linker support for --enable-new-dtags is required"])])
	AC_SUBST([AM_LDFLAGS])

	saved_LDFLAGS="$LDFLAGS"
	LDFLAGS="$AM_LDFLAGS $LDFLAGS"
	LT_INIT([dlopen])
	LDFLAGS="$saved_LDFLAGS"
	LTDL_INIT([convenience])

	AC_TYPE_SIZE_T
	AC_CHECK_SIZEOF(char)
	AC_CHECK_SIZEOF(short)
	AC_CHECK_SIZEOF(int)
	AC_CHECK_SIZEOF(long)
	AC_CHECK_SIZEOF(long long)

	dnl ===============================================
	dnl Helpers
	dnl ===============================================
	cc_supports_flag() {
	local CFLAGS="-Werror $@"
	AC_MSG_CHECKING([whether $CC supports $@])
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[ ]])],
	[RC=0; AC_MSG_RESULT([yes])],
	[RC=1; AC_MSG_RESULT([no])])
	return $RC
	}

	# Some tests need to use their own CFLAGS

	cc_temp_flags() {
	ac_save_CFLAGS="$CFLAGS"
	CFLAGS="$*"
	}

	cc_restore_flags() {
	CFLAGS=$ac_save_CFLAGS
	}

	# yes_no_try $user_response $default
	DISABLED=0
	REQUIRED=1
	OPTIONAL=2
	yes_no_try() {
	local value
	AS_IF([test x"$1" = x""], [value="$2"], [value="$1"])
	AS_CASE(["`echo "$value" \| tr '[A-Z]' '[a-z]'`"],
	[0\|no\|false\|disable], [return $DISABLED],
	[1\|yes\|true\|enable], [return $REQUIRED],
	[try\|check], [return $OPTIONAL]
	)
	AC_MSG_ERROR([Invalid option value "$value"])
	}

	check_systemdsystemunitdir() {
	AC_MSG_CHECKING([which system unit file directory to use])
	PKG_CHECK_VAR([systemdsystemunitdir], [systemd], [systemdsystemunitdir])
	AC_MSG_RESULT([${systemdsystemunitdir}])
	test x"$systemdsystemunitdir" != x""
	return $?
	}

	dnl ===============================================
	dnl Configure Options
	dnl ===============================================

	dnl Actual library checks come later, but pkg-config can be used here to grab
	dnl external values to use as defaults for configure options

	dnl --enable-* options: build process

	AC_ARG_ENABLE([quiet],
	[AS_HELP_STRING([--enable-quiet],
	[suppress make output unless there is an error @<:@no@:>@])]
	)
	yes_no_try "$enable_quiet" "no"
	enable_quiet=$?

	AC_ARG_ENABLE([fatal-warnings],
	[AS_HELP_STRING([--enable-fatal-warnings],
	[enable pedantic and fatal warnings for gcc @<:@try@:>@])],
	)
	yes_no_try "$enable_fatal_warnings" "try"
	enable_fatal_warnings=$?

	AC_ARG_ENABLE([hardening],
	[AS_HELP_STRING([--enable-hardening],
	[harden the resulting executables/libraries @<:@try@:>@])]
	)
	yes_no_try "$enable_hardening" "try"
	enable_hardening=$?

	dnl --enable-* options: features

	AC_ARG_ENABLE([systemd],
	[AS_HELP_STRING([--enable-systemd],
	[enable support for managing resources via systemd @<:@try@:>@])]
	)
	yes_no_try "$enable_systemd" "try"
	enable_systemd=$?

	AC_ARG_ENABLE([upstart],
	[AS_HELP_STRING([--enable-upstart],
	[enable support for managing resources via Upstart @<:@try@:>@])]
	)
	yes_no_try "$enable_upstart" "try"
	enable_upstart=$?

	dnl --enable-* options: compatibility

	AC_ARG_ENABLE([compat-2.0],
	[AS_HELP_STRING([--enable-compat-2.0], m4_normalize([
	preserve certain output as it was in 2.0; this option will be
	available only for the lifetime of the 2.1 series @<:@no@:>@]))]
	)
	yes_no_try "$enable_compat_2_0" "no"
	enable_compat_2_0=$?
	AS_IF([test $enable_compat_2_0 -ne $DISABLED],
	[
	AC_DEFINE_UNQUOTED([PCMK__COMPAT_2_0], [1],
	[Keep certain output compatible with 2.0 release series])
	PCMK_FEATURES="$PCMK_FEATURES compat-2.0"
	]
	)

	# Add an option to create symlinks at the pre-2.0.0 daemon name locations, so
	# that users and tools can continue to invoke those names directly (e.g., for
	# meta-data). This option will be deprecated in a future release.
	AC_ARG_ENABLE([legacy-links],
	[AS_HELP_STRING([--enable-legacy-links],
	[add symlinks for old daemon names @<:@no@:>@])]
	)
	yes_no_try "$enable_legacy_links" "no"
	enable_legacy_links=$?
	AM_CONDITIONAL([BUILD_LEGACY_LINKS], [test $enable_legacy_links -ne $DISABLED])

	dnl --with-* options: basic parameters

	dnl This argument is defined via an M4 macro so default can be a variable
	AC_DEFUN([VERSION_ARG],
	[AC_ARG_WITH([version],
	[AS_HELP_STRING([--with-version=VERSION],
	[override package version @<:@$1@:>@])],
	[ PACEMAKER_VERSION="$withval" ],
	[ PACEMAKER_VERSION="$PACKAGE_VERSION" ])]
	)
	VERSION_ARG(VERSION_NUMBER)

	# Redefine PACKAGE_VERSION and VERSION according to PACEMAKER_VERSION in case
	# the user used --with-version. Unfortunately, this can only affect the
	# substitution variables and later uses in this file, not the config.h
	# constants, so we have to be careful to use only PACEMAKER_VERSION in C code.
	PACKAGE_VERSION=$PACEMAKER_VERSION
	VERSION=$PACEMAKER_VERSION

	CRM_DAEMON_USER=""
	AC_ARG_WITH([daemon-user],
	[AS_HELP_STRING([--with-daemon-user=USER],
	[user to run unprivileged Pacemaker daemons as (advanced option: changing this may break other cluster components unless similarly configured) @<:@hacluster@:>@])],
	[ CRM_DAEMON_USER="$withval" ]
	)

	CRM_DAEMON_GROUP=""
	AC_ARG_WITH([daemon-group],
	[AS_HELP_STRING([--with-daemon-group=GROUP],
	[group to run unprivileged Pacemaker daemons as (advanced option: changing this may break other cluster components unless similarly configured) @<:@haclient@:>@])],
	[ CRM_DAEMON_GROUP="$withval" ]
	)

	BUG_URL=""
	AC_ARG_WITH([bug-url],
	[AS_HELP_STRING([--with-bug-url=DIR], m4_normalize([
	address where users should submit bug reports
	@<:@https://bugs.clusterlabs.org/enter_bug.cgi?product=Pacemaker@:>@]))],
	[ BUG_URL="$withval" ]
	)

	dnl --with-* options: features

	AC_ARG_WITH([cibsecrets],
	[AS_HELP_STRING([--with-cibsecrets],
	[support separate file for CIB secrets @<:@no@:>@])]
	)
	yes_no_try "$with_cibsecrets" "no"
	with_cibsecrets=$?

	AC_ARG_WITH([gnutls],
	[AS_HELP_STRING([--with-gnutls],
	[support Pacemaker Remote and remote-tls-port using GnuTLS @<:@try@:>@])]
	)
	yes_no_try "$with_gnutls" "try"
	with_gnutls=$?

	PCMK_GNUTLS_PRIORITIES="NORMAL"
	AC_ARG_WITH([gnutls-priorities],
	[AS_HELP_STRING([--with-gnutls-priorities],
	[default GnuTLS cipher priorities @<:@NORMAL@:>@])],
	[ test x"$withval" = x"no" \|\| PCMK_GNUTLS_PRIORITIES="$withval" ]
	)

	AC_ARG_WITH([concurrent-fencing-default],
	[AS_HELP_STRING([--with-concurrent-fencing-default],
	[default value for concurrent-fencing cluster option @<:@false@:>@])],
	)
	AS_CASE([$with_concurrent_fencing_default],
	[""], [with_concurrent_fencing_default="false"],
	[false], [],
	[true], [PCMK_FEATURES="$PCMK_FEATURES default-concurrent-fencing"],
	[AC_MSG_ERROR([Invalid value "$with_concurrent_fencing_default" for --with-concurrent-fencing-default])]
	)
	AC_DEFINE_UNQUOTED([PCMK__CONCURRENT_FENCING_DEFAULT],
	["$with_concurrent_fencing_default"],
	[Default value for concurrent-fencing cluster option])

	AC_ARG_WITH([corosync],
	[AS_HELP_STRING([--with-corosync],
	[support the Corosync messaging and membership layer @<:@try@:>@])]
	)
	yes_no_try "$with_corosync" "try"
	with_corosync=$?

	AC_ARG_WITH([nagios],
	[AS_HELP_STRING([--with-nagios], [support nagios resources])]
	)
	yes_no_try "$with_nagios" "try"
	with_nagios=$?

	dnl --with-* options: directory locations

	AC_ARG_WITH([nagios-plugin-dir],
	[AS_HELP_STRING([--with-nagios-plugin-dir=DIR],
	[directory for nagios plugins @<:@LIBEXECDIR/nagios/plugins@:>@])],
	[ NAGIOS_PLUGIN_DIR="$withval" ]
	)

	AC_ARG_WITH([nagios-metadata-dir],
	[AS_HELP_STRING([--with-nagios-metadata-dir=DIR],
	[directory for nagios plugins metadata @<:@DATADIR/nagios/plugins-metadata@:>@])],
	[ NAGIOS_METADATA_DIR="$withval" ]
	)

	INITDIR=""
	AC_ARG_WITH([initdir],
	[AS_HELP_STRING([--with-initdir=DIR],
	[directory for init (rc) scripts])],
	[ INITDIR="$withval" ]
	)

	systemdsystemunitdir="${systemdsystemunitdir-}"
	AC_ARG_WITH([systemdsystemunitdir],
	[AS_HELP_STRING([--with-systemdsystemunitdir=DIR],
	[directory for systemd unit files (advanced option: must match what systemd uses)])],
	[ systemdsystemunitdir="$withval" ]
	)

	CONFIGDIR=""
	AC_ARG_WITH([configdir],
	[AS_HELP_STRING([--with-configdir=DIR],
	[directory for Pacemaker configuration file @<:@SYSCONFDIR/sysconfig@:>@])],
	[ CONFIGDIR="$withval" ]
	)

	dnl --runstatedir is available as of autoconf 2.70 (2020-12-08). When users
	dnl have an older version, they can use our --with-runstatedir.
	pcmk_runstatedir=""
	AC_ARG_WITH([runstatedir],
	[AS_HELP_STRING([--with-runstatedir=DIR],
	[modifiable per-process data @<:@LOCALSTATEDIR/run@:>@ (ignored if --runstatedir is available)])],
	[ pcmk_runstatedir="$withval" ]
	)

	CRM_LOG_DIR=""
	AC_ARG_WITH([logdir],
	[AS_HELP_STRING([--with-logdir=DIR],
	[directory for Pacemaker log file @<:@LOCALSTATEDIR/log/pacemaker@:>@])],
	[ CRM_LOG_DIR="$withval" ]
	)

	CRM_BUNDLE_DIR=""
	AC_ARG_WITH([bundledir],
	[AS_HELP_STRING([--with-bundledir=DIR],
	[directory for Pacemaker bundle logs @<:@LOCALSTATEDIR/log/pacemaker/bundles@:>@])],
	[ CRM_BUNDLE_DIR="$withval" ]
	)

	dnl Get default from resource-agents if possible. Otherwise, the default uses
	dnl /usr/lib rather than libdir because it's determined by the OCF project and
	dnl not Pacemaker. Even if a user wants to install Pacemaker to /usr/local or
	dnl such, the OCF agents will be expected in their usual location. However, we
	dnl do give the user the option to override it.
	PKG_CHECK_VAR([OCF_ROOT_DIR], [resource-agents], [ocfrootdir], [],
	[OCF_ROOT_DIR="/usr/lib/ocf"])
	AC_ARG_WITH([ocfdir],
	[AS_HELP_STRING([--with-ocfdir=DIR], m4_normalize([
	OCF resource agent root directory (advanced option: changing this
	may break other cluster components unless similarly configured)
	@<:@value from resource-agents package if available otherwise
	/usr/lib/ocf@:>@]))],
	[ OCF_ROOT_DIR="$withval" ]
	)
	AC_SUBST(OCF_ROOT_DIR)
	AC_DEFINE_UNQUOTED([OCF_ROOT_DIR], ["$OCF_ROOT_DIR"],
	[OCF root directory for resource agents and libraries])

	dnl Get default from fence-agents if available
	PKG_CHECK_VAR([FA_PREFIX], [fence-agents], [prefix],
	[PCMK__FENCE_BINDIR="${FA_PREFIX}/sbin"],
	[PCMK__FENCE_BINDIR="$sbindir"])
	AC_ARG_WITH([fence-bindir],
	[AS_HELP_STRING([--with-fence-bindir=DIR], m4_normalize([
	directory for executable fence agents @<:@value from fence-agents
	package if available otherwise SBINDIR@:>@]))],
	[ PCMK__FENCE_BINDIR="$withval" ]
	)
	AC_SUBST(PCMK__FENCE_BINDIR)

	dnl --with-* options: non-production testing

	AC_ARG_WITH([profiling],
	[AS_HELP_STRING([--with-profiling],
	[disable optimizations, for effective profiling @<:@no@:>@])]
	)
	yes_no_try "$with_profiling" "no"
	with_profiling=$?

	AC_ARG_WITH([coverage],
	[AS_HELP_STRING([--with-coverage],
	[disable optimizations, for effective profiling and coverage testing @<:@no@:>@])]
	)
	yes_no_try "$with_coverage" "no"
	with_coverage=$?

	AC_ARG_WITH([sanitizers],
	[AS_HELP_STRING([--with-sanitizers=...,...],
	[enable SANitizer build, do NOT use for production. Only ASAN/UBSAN/TSAN are currently supported])],
	[ SANITIZERS="$withval" ],
	[ SANITIZERS="" ])


	dnl ===============================================
	dnl General Processing
	dnl ===============================================

	AC_DEFINE_UNQUOTED(PACEMAKER_VERSION, "$VERSION",
	[Version number of this Pacemaker build])

	PACKAGE_SERIES=`echo $VERSION \| awk -F. '{ print $1"."$2 }'`
	AC_SUBST(PACKAGE_SERIES)

	AC_PROG_LN_S
	AC_PROG_MKDIR_P

	# Check for fatal warning support
	AS_IF([test $enable_fatal_warnings -ne $DISABLED && test "$GCC" = "yes" && cc_supports_flag -Werror],
	[WERROR="-Werror"],
	[
	WERROR=""
	AS_CASE([$enable_fatal_warnings],
	[$REQUIRED], [AC_MSG_ERROR([Compiler does not support fatal warnings])],
	[$OPTIONAL], [
	AC_MSG_NOTICE([Compiler does not support fatal warnings])
	enable_fatal_warnings=$DISABLED
	])
	])

	AC_MSG_NOTICE([Sanitizing prefix: ${prefix}])
	AS_IF([test "$prefix" = "NONE"],
	[
	prefix=/usr
	dnl Fix default variables - "prefix" variable if not specified
	AS_IF([test "$localstatedir" = "\${prefix}/var"],
	[localstatedir="/var"])
	AS_IF([test "$sysconfdir" = "\${prefix}/etc"],
	[sysconfdir="/etc"])
	])

	AC_MSG_NOTICE([Sanitizing exec_prefix: ${exec_prefix}])
	case $exec_prefix in
	prefix\|NONE)
	exec_prefix=$prefix
	;;
	esac

	AC_MSG_NOTICE([Sanitizing INITDIR: ${INITDIR}])
	case $INITDIR in
	prefix) INITDIR=$prefix;;
	"")
	AC_MSG_CHECKING([which init (rc) directory to use])
	for initdir in /etc/init.d /etc/rc.d/init.d /sbin/init.d \
	/usr/local/etc/rc.d /etc/rc.d
	do
	if
	test -d $initdir
	then
	INITDIR=$initdir
	break
	fi
	done
	AC_MSG_RESULT([$INITDIR])
	;;
	esac
	AC_SUBST(INITDIR)

	AC_MSG_NOTICE([Sanitizing libdir: ${libdir}])
	case $libdir in
	prefix\|NONE)
	AC_MSG_CHECKING([which lib directory to use])
	for aDir in lib64 lib
	do
	trydir="${exec_prefix}/${aDir}"
	if
	test -d ${trydir}
	then
	libdir=${trydir}
	break
	fi
	done
	AC_MSG_RESULT([$libdir]);
	;;
	esac

	dnl Expand autoconf variables so that we don't end up with '${prefix}'
	dnl in #defines and python scripts
	dnl NOTE: Autoconf deliberately leaves them unexpanded to allow
	dnl make exec_prefix=/foo install
	dnl No longer being able to do this seems like no great loss to me...

	eval prefix="`eval echo ${prefix}`"
	eval exec_prefix="`eval echo ${exec_prefix}`"
	eval bindir="`eval echo ${bindir}`"
	eval sbindir="`eval echo ${sbindir}`"
	eval libexecdir="`eval echo ${libexecdir}`"
	eval datadir="`eval echo ${datadir}`"
	eval sysconfdir="`eval echo ${sysconfdir}`"
	eval sharedstatedir="`eval echo ${sharedstatedir}`"
	eval localstatedir="`eval echo ${localstatedir}`"
	eval libdir="`eval echo ${libdir}`"
	eval includedir="`eval echo ${includedir}`"
	eval oldincludedir="`eval echo ${oldincludedir}`"
	eval infodir="`eval echo ${infodir}`"
	eval mandir="`eval echo ${mandir}`"

	dnl Home-grown variables

	if [ test "x${runstatedir}" = "x" ]; then
	if [ test "x${pcmk_runstatedir}" = "x" ]; then
	runstatedir="${localstatedir}/run"
	else
	runstatedir="${pcmk_runstatedir}"
	fi
	fi
	eval runstatedir="$(eval echo ${runstatedir})"
	AC_DEFINE_UNQUOTED([PCMK_RUN_DIR], ["$runstatedir"],
	[Location for modifiable per-process data])
	AC_SUBST(runstatedir)

	eval INITDIR="${INITDIR}"
	eval docdir="`eval echo ${docdir}`"
	if test x"${docdir}" = x""; then
	docdir=${datadir}/doc/${PACKAGE}-${VERSION}
	fi
	AC_SUBST(docdir)
	if test x"${CONFIGDIR}" = x""; then
	CONFIGDIR="${sysconfdir}/sysconfig"
	fi
	AC_SUBST(CONFIGDIR)

	if test x"${CRM_LOG_DIR}" = x""; then
	CRM_LOG_DIR="${localstatedir}/log/pacemaker"
	fi
	AC_DEFINE_UNQUOTED(CRM_LOG_DIR,"$CRM_LOG_DIR", Location for Pacemaker log file)
	AC_SUBST(CRM_LOG_DIR)

	if test x"${CRM_BUNDLE_DIR}" = x""; then
	CRM_BUNDLE_DIR="${localstatedir}/log/pacemaker/bundles"
	fi
	AC_DEFINE_UNQUOTED(CRM_BUNDLE_DIR,"$CRM_BUNDLE_DIR", Location for Pacemaker bundle logs)
	AC_SUBST(CRM_BUNDLE_DIR)

	eval PCMK__FENCE_BINDIR="`eval echo ${PCMK__FENCE_BINDIR}`"
	AC_DEFINE_UNQUOTED(PCMK__FENCE_BINDIR,"$PCMK__FENCE_BINDIR",
	[Location for executable fence agents])

	AS_IF([test x"${PCMK_GNUTLS_PRIORITIES}" != x""], [],
	[AC_MSG_ERROR([--with-gnutls-priorities value must not be empty])])
	AC_DEFINE_UNQUOTED([PCMK_GNUTLS_PRIORITIES], ["$PCMK_GNUTLS_PRIORITIES"],
	[GnuTLS cipher priorities])

	if test x"${BUG_URL}" = x""; then
	BUG_URL="https://bugs.clusterlabs.org/enter_bug.cgi?product=Pacemaker"
	fi
	AC_SUBST(BUG_URL)

	for j in prefix exec_prefix bindir sbindir libexecdir datadir sysconfdir \
	sharedstatedir localstatedir libdir includedir oldincludedir infodir \
	mandir INITDIR docdir CONFIGDIR
	do
	dirname=`eval echo '${'${j}'}'`
	if
	test ! -d "$dirname"
	then
	AC_MSG_WARN([$j directory ($dirname) does not exist (yet)])
	fi
	done

	us_auth=
	AC_CHECK_HEADER([sys/socket.h], [
	AC_CHECK_DECL([SO_PEERCRED], [
	# Linux
	AC_CHECK_TYPE([struct ucred], [
	us_auth=peercred_ucred;
	AC_DEFINE([US_AUTH_PEERCRED_UCRED], [1],
	[Define if Unix socket auth method is
	getsockopt(s, SO_PEERCRED, &ucred, ...)])
	], [
	# OpenBSD
	AC_CHECK_TYPE([struct sockpeercred], [
	us_auth=localpeercred_sockepeercred;
	AC_DEFINE([US_AUTH_PEERCRED_SOCKPEERCRED], [1],
	[Define if Unix socket auth method is
	getsockopt(s, SO_PEERCRED, &sockpeercred, ...)])
	], [], [[#include <sys/socket.h>]])
	], [[#define _GNU_SOURCE
	#include <sys/socket.h>]])
	], [], [[#include <sys/socket.h>]])
	])

	AS_IF([test -z "${us_auth}"], [
	# FreeBSD
	AC_CHECK_DECL([getpeereid], [
	us_auth=getpeereid;
	AC_DEFINE([US_AUTH_GETPEEREID], [1],
	[Define if Unix socket auth method is
	getpeereid(s, &uid, &gid)])
	], [
	# Solaris/OpenIndiana
	AC_CHECK_DECL([getpeerucred], [
	us_auth=getpeerucred;
	AC_DEFINE([US_AUTH_GETPEERUCRED], [1],
	[Define if Unix socket auth method is
	getpeercred(s, &ucred)])
	], [
	AC_MSG_FAILURE([No way to authenticate a Unix socket peer])
	], [[#include <ucred.h>]])
	])
	])

	dnl OS-based decision-making is poor autotools practice; feature-based
	dnl mechanisms are strongly preferred. Keep this section to a bare minimum;
	dnl regard as a "necessary evil".
	INIT_EXT=""
	PROCFS=0
	case "$host_os" in
	dnl Solaris and some *BSD versions support procfs but not files we need
	bsd)
	INIT_EXT=".sh"
	;;
	linux)
	PROCFS=1
	;;
	darwin*)
	LIBS="$LIBS -L${prefix}/lib"
	CFLAGS="$CFLAGS -I${prefix}/include"
	;;
	esac

	AC_SUBST(INIT_EXT)
	AC_DEFINE_UNQUOTED([SUPPORT_PROCFS], [$PROCFS],
	[Define to 1 if procfs is supported])

	case "$host_cpu" in
	ppc64\|powerpc64)
	case $CFLAGS in
	powerpc64)
	;;
	*)
	if test "$GCC" = yes; then
	CFLAGS="$CFLAGS -m64"
	fi
	;;
	esac
	;;
	esac

	# C99 doesn't guarantee uint64_t type and related format specifiers, but
	# prerequisites, corosync + libqb, use that widely, so the target platforms
	# are already pre-constrained to those "64bit-clean" (doesn't imply native
	# bit width) and hence we deliberately refrain from artificial surrogates
	# (sans manipulation through cached values).
	AC_CACHE_VAL(
	[pcmk_cv_decl_inttypes],
	[
	AC_CHECK_DECLS(
	[PRIu64, PRIu32, PRIx32,
	SCNu64],
	[pcmk_cv_decl_inttypes="PRIu64 PRIu32 PRIx32 SCNu64"],
	[
	# test shall only react on "no" cached result & error out respectively
	if test "x$ac_cv_have_decl_PRIu64" = xno; then
	AC_MSG_ERROR([lack of inttypes.h based specifier serving uint64_t (PRIu64)])
	elif test "x$ac_cv_have_decl_PRIu32" = xno; then
	AC_MSG_ERROR([lack of inttypes.h based specifier serving uint32_t (PRIu32)])
	elif test "x$ac_cv_have_decl_PRIx32" = xno; then
	AC_MSG_ERROR([lack of inttypes.h based hexa specifier serving uint32_t (PRIx32)])
	elif test "x$ac_cv_have_decl_SCNu64" = xno; then
	AC_MSG_ERROR([lack of inttypes.h based specifier gathering uint64_t (SCNu64)])
	fi
	],
	[[#include <inttypes.h>]]
	)
	]
	)
	(
	set $pcmk_cv_decl_inttypes
	AC_DEFINE_UNQUOTED([U64T], [$1], [Correct format specifier for U64T])
	AC_DEFINE_UNQUOTED([U32T], [$2], [Correct format specifier for U32T])
	AC_DEFINE_UNQUOTED([X32T], [$3], [Correct format specifier for X32T])
	AC_DEFINE_UNQUOTED([U64TS], [$4], [Correct format specifier for U64TS])
	)

	dnl ===============================================
	dnl Program Paths
	dnl ===============================================

	PATH="$PATH:/sbin:/usr/sbin:/usr/local/sbin:/usr/local/bin"
	export PATH

	dnl Replacing AC_PROG_LIBTOOL with AC_CHECK_PROG because LIBTOOL
	dnl was NOT being expanded all the time thus causing things to fail.
	AC_CHECK_PROGS(LIBTOOL, glibtool libtool libtool15 libtool13)
	AS_IF([test "x${LIBTOOL}" != "x"], [],
	[AC_MSG_FAILURE([Could not find required build tool libtool (or equivalent)])])

	dnl Pacemaker's executable python scripts will invoke the python specified by
	dnl configure's PYTHON variable. If not specified, AM_PATH_PYTHON will check a
	dnl built-in list with (unversioned) "python" having precedence. To configure
	dnl Pacemaker to use a specific python interpreter version, define PYTHON
	dnl when calling configure, for example: ./configure PYTHON=/usr/bin/python3.6

	dnl Ensure PYTHON is an absolute path
	AS_IF([test x"${PYTHON}" != x""], [AC_PATH_PROG([PYTHON], [$PYTHON])])

	dnl Require a minimum Python version
	AM_PATH_PYTHON([3.4])

	AC_PATH_PROGS([ASCIIDOC_CONV], [asciidoc asciidoctor])
	AC_PATH_PROG([HELP2MAN], [help2man])
	AC_PATH_PROG([SPHINX], [sphinx-build])
	AC_PATH_PROG([INKSCAPE], [inkscape])
	AC_PATH_PROG([XSLTPROC], [xsltproc])
	AC_PATH_PROG([XMLCATALOG], [xmlcatalog])

	dnl Bash is needed for building man pages and running regression tests.
	dnl BASH is already an environment variable, so use something else.
	AC_PATH_PROG([BASH_PATH], [bash])
	AS_IF([test "x${BASH_PATH}" != "x"], [],
	[AC_MSG_FAILURE([Could not find required build tool bash])])

	AC_PATH_PROGS(VALGRIND_BIN, valgrind, /usr/bin/valgrind)
	AC_DEFINE_UNQUOTED(VALGRIND_BIN, "$VALGRIND_BIN", Valgrind command)

	AM_CONDITIONAL(BUILD_HELP, test x"${HELP2MAN}" != x"")
	if test x"${HELP2MAN}" != x""; then
	PCMK_FEATURES="$PCMK_FEATURES generated-manpages"
	fi

	MANPAGE_XSLT=""
	if test x"${XSLTPROC}" != x""; then
	AC_MSG_CHECKING([for DocBook-to-manpage transform])
	# first try to figure out correct template using xmlcatalog query,
	# resort to extensive (semi-deterministic) file search if that fails
	DOCBOOK_XSL_URI='http://docbook.sourceforge.net/release/xsl/current'
	DOCBOOK_XSL_PATH='manpages/docbook.xsl'
	MANPAGE_XSLT=$(${XMLCATALOG} "" ${DOCBOOK_XSL_URI}/${DOCBOOK_XSL_PATH} \
	\| sed -n 's\|^file://\|\|p;q')
	if test x"${MANPAGE_XSLT}" = x""; then
	DIRS=$(find "${datadir}" -name $(basename $(dirname ${DOCBOOK_XSL_PATH})) \
	-type d \| LC_ALL=C sort)
	XSLT=$(basename ${DOCBOOK_XSL_PATH})
	for d in ${DIRS}
	do
	if test -f "${d}/${XSLT}"; then
	MANPAGE_XSLT="${d}/${XSLT}"
	break
	fi
	done
	fi
	fi
	AC_MSG_RESULT([$MANPAGE_XSLT])
	AC_SUBST(MANPAGE_XSLT)

	AM_CONDITIONAL(BUILD_XML_HELP, test x"${MANPAGE_XSLT}" != x"")
	if test x"${MANPAGE_XSLT}" != x""; then
	PCMK_FEATURES="$PCMK_FEATURES agent-manpages"
	fi

	AM_CONDITIONAL([IS_ASCIIDOC], [echo "${ASCIIDOC_CONV}" \| grep -Eq 'asciidoc$'])
	AM_CONDITIONAL([BUILD_ASCIIDOC], [test "x${ASCIIDOC_CONV}" != x])
	if test "x${ASCIIDOC_CONV}" != x; then
	PCMK_FEATURES="$PCMK_FEATURES ascii-docs"
	fi

	AM_CONDITIONAL([BUILD_SPHINX_DOCS],
	[test x"${SPHINX}" != x"" && test x"${INKSCAPE}" != x""])
	AM_COND_IF([BUILD_SPHINX_DOCS], [PCMK_FEATURES="$PCMK_FEATURES books"])

	dnl Pacemaker's shell scripts (and thus man page builders) rely on GNU getopt
	AC_MSG_CHECKING([for GNU-compatible getopt])
	IFS_orig=$IFS
	IFS=:
	for PATH_DIR in $PATH
	do
	IFS=$IFS_orig
	GETOPT_PATH="${PATH_DIR}/getopt"
	if test -f "$GETOPT_PATH" && test -x "$GETOPT_PATH" ; then
	$GETOPT_PATH -T >/dev/null 2>/dev/null
	if test $? -eq 4; then
	break
	fi
	fi
	GETOPT_PATH=""
	done
	IFS=$IFS_orig
	AS_IF([test -n "$GETOPT_PATH"], [AC_MSG_RESULT([$GETOPT_PATH])],
	[
	AC_MSG_RESULT([no])
	AC_MSG_ERROR([Could not find required build tool GNU-compatible getopt])
	])
	AC_SUBST([GETOPT_PATH])

	dnl ========================================================================
	dnl checks for library functions to replace them
	dnl
	dnl NoSuchFunctionName:
	dnl is a dummy function which no system supplies. It is here to make
	dnl the system compile semi-correctly on OpenBSD which doesn't know
	dnl how to create an empty archive
	dnl
	dnl scandir: Only on BSD.
	dnl System-V systems may have it, but hidden and/or deprecated.
	dnl A replacement function is supplied for it.
	dnl
	dnl strerror: returns a string that corresponds to an errno.
	dnl A replacement function is supplied for it.
	dnl
	dnl strnlen: is a gnu function similar to strlen, but safer.
	dnl We wrote a tolerably-fast replacement function for it.
	dnl
	dnl strndup: is a gnu function similar to strdup, but safer.
	dnl We wrote a tolerably-fast replacement function for it.

	AC_REPLACE_FUNCS(alphasort NoSuchFunctionName scandir strerror strchrnul strnlen strndup)

	dnl ===============================================
	dnl Libraries
	dnl ===============================================
	AC_CHECK_LIB(socket, socket) dnl -lsocket
	AC_CHECK_LIB(c, dlopen) dnl if dlopen is in libc...
	AC_CHECK_LIB(dl, dlopen) dnl -ldl (for Linux)
	AC_CHECK_LIB(rt, sched_getscheduler) dnl -lrt (for Tru64)
	AC_CHECK_LIB(gnugetopt, getopt_long) dnl -lgnugetopt ( if available )
	AC_CHECK_LIB(pam, pam_start) dnl -lpam (if available)

	PKG_CHECK_MODULES([UUID], [uuid],
	[CPPFLAGS="${CPPFLAGS} ${UUID_CFLAGS}"
	LIBS="${LIBS} ${UUID_LIBS}"])

	AC_CHECK_FUNCS([sched_setscheduler])
	if test "$ac_cv_func_sched_setscheduler" != yes; then
	PC_LIBS_RT=""
	else
	PC_LIBS_RT="-lrt"
	fi
	AC_SUBST(PC_LIBS_RT)

	# Require glib 2.32.0 (2012-03) or later
	PKG_CHECK_MODULES([GLIB], [glib-2.0 >= 2.32.0],
	[CPPFLAGS="${CPPFLAGS} ${GLIB_CFLAGS}"
	LIBS="${LIBS} ${GLIB_LIBS}"])

	# Check whether high-resolution sleep function is available
	AC_CHECK_FUNCS([nanosleep usleep])

	#
	# Where is dlopen?
	#
	if test "$ac_cv_lib_c_dlopen" = yes; then
	LIBADD_DL=""
	elif test "$ac_cv_lib_dl_dlopen" = yes; then
	LIBADD_DL=-ldl
	else
	LIBADD_DL=${lt_cv_dlopen_libs}
	fi

	PKG_CHECK_MODULES(LIBXML2, [libxml-2.0],
	[CPPFLAGS="${CPPFLAGS} ${LIBXML2_CFLAGS}"
	LIBS="${LIBS} ${LIBXML2_LIBS}"])

	REQUIRE_LIB([xslt], [xsltApplyStylesheet])

	dnl ========================================================================
	dnl Headers
	dnl ========================================================================

	# Some distributions insert #warnings into deprecated headers. If we will
	# enable fatal warnings for the build, then enable them for the header checks
	# as well, otherwise the build could fail even though the header check
	# succeeds. (We should probably be doing this in more places.)
	cc_temp_flags "$CFLAGS $WERROR"

	# Optional headers (inclusion of these should be conditional in C code)
	AC_CHECK_HEADERS([getopt.h])
	AC_CHECK_HEADERS([linux/swab.h])
	AC_CHECK_HEADERS([stddef.h])
	AC_CHECK_HEADERS([sys/signalfd.h])
	AC_CHECK_HEADERS([uuid/uuid.h])
	AC_CHECK_HEADERS([security/pam_appl.h pam/pam_appl.h])

	# Required headers
	REQUIRE_HEADER([arpa/inet.h])
	REQUIRE_HEADER([ctype.h])
	REQUIRE_HEADER([dirent.h])
	REQUIRE_HEADER([errno.h])
	REQUIRE_HEADER([glib.h])
	REQUIRE_HEADER([grp.h])
	REQUIRE_HEADER([limits.h])
	REQUIRE_HEADER([netdb.h])
	REQUIRE_HEADER([netinet/in.h])
	REQUIRE_HEADER([netinet/ip.h], [
	#include <sys/types.h>
	#include <netinet/in.h>
	])
	REQUIRE_HEADER([pwd.h])
	REQUIRE_HEADER([signal.h])
	REQUIRE_HEADER([stdio.h])
	REQUIRE_HEADER([stdlib.h])
	REQUIRE_HEADER([string.h])
	REQUIRE_HEADER([strings.h])
	REQUIRE_HEADER([sys/ioctl.h])
	REQUIRE_HEADER([sys/param.h])
	REQUIRE_HEADER([sys/reboot.h])
	REQUIRE_HEADER([sys/resource.h])
	REQUIRE_HEADER([sys/socket.h])
	REQUIRE_HEADER([sys/stat.h])
	REQUIRE_HEADER([sys/time.h])
	REQUIRE_HEADER([sys/types.h])
	REQUIRE_HEADER([sys/utsname.h])
	REQUIRE_HEADER([sys/wait.h])
	REQUIRE_HEADER([time.h])
	REQUIRE_HEADER([unistd.h])
	REQUIRE_HEADER([libxml/xpath.h])
	REQUIRE_HEADER([libxslt/xslt.h])

	cc_restore_flags

	AC_CHECK_FUNCS([uuid_unparse], [],
	[AC_MSG_FAILURE([Could not find required C function uuid_unparse()])])

	AC_CACHE_CHECK([whether __progname and __progname_full are available],
	[pf_cv_var_progname], AC_LINK_IFELSE([
	AC_LANG_PROGRAM([[extern char __progname, __progname_full;]],
	[[__progname = "foo"; __progname_full = "foo bar";]],
	[pf_cv_var_progname="yes"],
	[pf_cv_var_progname="no"])
	]))
	AS_IF([test "$pf_cv_var_progname" = "yes"], [AC_DEFINE(HAVE___PROGNAME,1,[ ])])

	dnl ========================================================================
	dnl Generic declarations
	dnl ========================================================================

	AC_CHECK_DECLS([CLOCK_MONOTONIC], [PCMK_FEATURES="$PCMK_FEATURES monotonic"], [], [[
	#include <time.h>
	]])

	dnl ========================================================================
	dnl Structures
	dnl ========================================================================

	AC_CHECK_MEMBERS([struct tm.tm_gmtoff],,,[[#include <time.h>]])
	AC_CHECK_MEMBER([struct dirent.d_type],
	AC_DEFINE(HAVE_STRUCT_DIRENT_D_TYPE,1,[Define this if struct dirent has d_type]),,
	[#include <dirent.h>])

	dnl ========================================================================
	dnl Functions
	dnl ========================================================================

	REQUIRE_FUNC([getopt])
	REQUIRE_FUNC([setenv])
	REQUIRE_FUNC([unsetenv])

	AC_CACHE_CHECK(whether sscanf supports %m,
	pf_cv_var_sscanf,
	AC_RUN_IFELSE([AC_LANG_SOURCE([[
	#include <stdio.h>
	const char *s = "some-command-line-arg";
	int main(int argc, char **argv) {
	char *name = NULL;
	int n = sscanf(s, "%ms", &name);
	return n == 1 ? 0 : 1;
	}
	]])],
	pf_cv_var_sscanf="yes", pf_cv_var_sscanf="no", pf_cv_var_sscanf="no"))

	AS_IF([test "$pf_cv_var_sscanf" = "yes"], [AC_DEFINE(SSCANF_HAS_M, 1, [ ])])

	dnl ========================================================================
	dnl bzip2
	dnl ========================================================================
	REQUIRE_HEADER([bzlib.h])
	REQUIRE_LIB([bz2], [BZ2_bzBuffToBuffCompress])

	dnl ========================================================================
	dnl sighandler_t is missing from Illumos, Solaris11 systems
	dnl ========================================================================

	AC_MSG_CHECKING([for sighandler_t])
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <signal.h>]], [[sighandler_t *f;]])],
	[
	AC_MSG_RESULT([yes])
	AC_DEFINE([HAVE_SIGHANDLER_T], [1],
	[Define to 1 if sighandler_t is available])
	],
	[AC_MSG_RESULT([no])])

	dnl ========================================================================
	dnl ncurses
	dnl ========================================================================
	dnl
	dnl A few OSes (e.g. Linux) deliver a default "ncurses" alongside "curses".
	dnl Many non-Linux deliver "curses"; sites may add "ncurses".
	dnl
	dnl However, the source-code recommendation for both is to #include "curses.h"
	dnl (i.e. "ncurses" still wants the include to be simple, no-'n', "curses.h").
	dnl
	dnl ncurses takes precedence.
	dnl
	AC_CHECK_HEADERS([curses.h curses/curses.h ncurses.h ncurses/ncurses.h])

	dnl Although n-library is preferred, only look for it if the n-header was found.
	CURSESLIBS=''
	PC_NAME_CURSES=""
	PC_LIBS_CURSES=""
	AS_IF([test "$ac_cv_header_ncurses_h" = "yes"], [
	AC_CHECK_LIB(ncurses, printw,
	[AC_DEFINE(HAVE_LIBNCURSES,1, have ncurses library)])
	CURSESLIBS=`$PKG_CONFIG --libs ncurses` \|\| CURSESLIBS='-lncurses'
	PC_NAME_CURSES="ncurses"
	])

	AS_IF([test "$ac_cv_header_ncurses_ncurses_h" = "yes"], [
	AC_CHECK_LIB(ncurses, printw,
	[AC_DEFINE(HAVE_LIBNCURSES,1, have ncurses library)])
	CURSESLIBS=`$PKG_CONFIG --libs ncurses` \|\| CURSESLIBS='-lncurses'
	PC_NAME_CURSES="ncurses"
	])

	dnl Only look for non-n-library if there was no n-library.
	AS_IF([test X"$CURSESLIBS" = X"" && test "$ac_cv_header_curses_h" = "yes"], [
	AC_CHECK_LIB(curses, printw,
	[CURSESLIBS='-lcurses'; AC_DEFINE(HAVE_LIBCURSES,1, have curses library)])
	PC_LIBS_CURSES="$CURSESLIBS"
	])

	dnl Only look for non-n-library if there was no n-library.
	AS_IF([test X"$CURSESLIBS" = X"" && test "$ac_cv_header_curses_curses_h" = "yes"], [
	AC_CHECK_LIB(curses, printw,
	[CURSESLIBS='-lcurses'; AC_DEFINE(HAVE_LIBCURSES,1, have curses library)])
	PC_LIBS_CURSES="$CURSESLIBS"
	])

	if test "x$CURSESLIBS" != "x"; then
	PCMK_FEATURES="$PCMK_FEATURES ncurses"
	fi

	dnl Check for printw() prototype compatibility
	AS_IF([test X"$CURSESLIBS" != X"" && cc_supports_flag -Wcast-qual], [
	ac_save_LIBS=$LIBS
	LIBS="$CURSESLIBS"
	cc_temp_flags "-Wcast-qual $WERROR"
	# avoid broken test because of hardened build environment in Fedora 23+
	# - https://fedoraproject.org/wiki/Changes/Harden_All_Packages
	# - https://bugzilla.redhat.com/1297985
	AS_IF([cc_supports_flag -fPIC], [CFLAGS="$CFLAGS -fPIC"])

	AC_MSG_CHECKING([whether curses library is compatible])
	AC_LINK_IFELSE(
	[AC_LANG_PROGRAM([
	#if defined(HAVE_NCURSES_H)
	# include <ncurses.h>
	#elif defined(HAVE_NCURSES_NCURSES_H)
	# include <ncurses/ncurses.h>
	#elif defined(HAVE_CURSES_H)
	# include <curses.h>
	#endif
	],
	[printw((const char *)"Test");]
	)],
	[AC_MSG_RESULT([yes])],
	[
	AC_MSG_RESULT([no])
	AC_MSG_WARN(m4_normalize([Disabling curses because the printw()
	function of your (n)curses library is old.
	If you wish to enable curses, update to a
	newer version (ncurses 5.4 or later is
	recommended, available from
	https://invisible-island.net/ncurses/)
	]))
	AC_DEFINE([HAVE_INCOMPATIBLE_PRINTW], [1],
	[Define to 1 if curses library has incompatible printw()])
	]
	)

	LIBS=$ac_save_LIBS
	cc_restore_flags
	])

	AC_SUBST(CURSESLIBS)
	AC_SUBST(PC_NAME_CURSES)
	AC_SUBST(PC_LIBS_CURSES)

	dnl ========================================================================
	dnl Profiling and GProf
	dnl ========================================================================

	CFLAGS_ORIG="$CFLAGS"
	AS_IF([test $with_coverage -ne $DISABLED],
	[
	with_profiling=$REQUIRED
	PCMK_FEATURES="$PCMK_FEATURES coverage"
	CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
	dnl During linking, make sure to specify -lgcov or -coverage
	]
	)

	AS_IF([test $with_profiling -ne $DISABLED],
	[
	with_profiling=$REQUIRED
	PCMK_FEATURES="$PCMK_FEATURES profile"

	dnl Disable various compiler optimizations
	CFLAGS="$CFLAGS -fno-omit-frame-pointer -fno-inline -fno-builtin"
	dnl CFLAGS="$CFLAGS -fno-inline-functions"
	dnl CFLAGS="$CFLAGS -fno-default-inline"
	dnl CFLAGS="$CFLAGS -fno-inline-functions-called-once"
	dnl CFLAGS="$CFLAGS -fno-optimize-sibling-calls"

	dnl Turn off optimization so tools can get accurate line numbers
	CFLAGS=`echo $CFLAGS \| sed \
	-e 's/-O.\ //g' \
	-e 's/-Wp,-D_FORTIFY_SOURCE=.\ //g' \
	-e 's/-D_FORTIFY_SOURCE=.\ //g'`
	CFLAGS="$CFLAGS -O0 -g3 -gdwarf-2"

	AC_MSG_NOTICE([CFLAGS before adding profiling options: $CFLAGS_ORIG])
	AC_MSG_NOTICE([CFLAGS after: $CFLAGS])
	]
	)
	AC_DEFINE_UNQUOTED([SUPPORT_PROFILING], [$with_profiling], [Support profiling])

	dnl ========================================================================
	dnl Cluster infrastructure - LibQB
	dnl ========================================================================

	PKG_CHECK_MODULES(libqb, libqb >= 0.17)
	CPPFLAGS="$libqb_CFLAGS $CPPFLAGS"
	LIBS="$libqb_LIBS $LIBS"

	dnl libqb 2.0.2+ (2020-10)
	AC_CHECK_FUNCS(qb_ipcc_auth_get,
	AC_DEFINE(HAVE_IPCC_AUTH_GET, 1,
	[Have qb_ipcc_auth_get function]))

	dnl libqb 2.0.0+ (2020-05)
	CHECK_ENUM_VALUE([qb/qblog.h],[qb_log_conf],[QB_LOG_CONF_MAX_LINE_LEN])
	CHECK_ENUM_VALUE([qb/qblog.h],[qb_log_conf],[QB_LOG_CONF_ELLIPSIS])

	dnl Support Linux-HA fence agents if available
	if test "$cross_compiling" != "yes"; then
	CPPFLAGS="$CPPFLAGS -I${prefix}/include/heartbeat"
	fi
	AC_CHECK_HEADERS([stonith/stonith.h],
	[
	AC_CHECK_LIB([pils], [PILLoadPlugin])
	AC_CHECK_LIB([plumb], [G_main_add_IPC_Channel])
	PCMK_FEATURES="$PCMK_FEATURES lha"
	])
	AM_CONDITIONAL([BUILD_LHA_SUPPORT], [test "$ac_cv_header_stonith_stonith_h" = "yes"])

	dnl ===============================================
	dnl Variables needed for substitution
	dnl ===============================================
	CRM_SCHEMA_DIRECTORY="${datadir}/pacemaker"
	AC_DEFINE_UNQUOTED(CRM_SCHEMA_DIRECTORY,"$CRM_SCHEMA_DIRECTORY", Location for the Pacemaker Relax-NG Schema)
	AC_SUBST(CRM_SCHEMA_DIRECTORY)

	CRM_CORE_DIR="${localstatedir}/lib/pacemaker/cores"
	AC_DEFINE_UNQUOTED(CRM_CORE_DIR,"$CRM_CORE_DIR", Location to store core files produced by Pacemaker daemons)
	AC_SUBST(CRM_CORE_DIR)

	if test x"${CRM_DAEMON_USER}" = x""; then
	CRM_DAEMON_USER="hacluster"
	fi
	AC_DEFINE_UNQUOTED(CRM_DAEMON_USER,"$CRM_DAEMON_USER", User to run Pacemaker daemons as)
	AC_SUBST(CRM_DAEMON_USER)

	if test x"${CRM_DAEMON_GROUP}" = x""; then
	CRM_DAEMON_GROUP="haclient"
	fi
	AC_DEFINE_UNQUOTED(CRM_DAEMON_GROUP,"$CRM_DAEMON_GROUP", Group to run Pacemaker daemons as)
	AC_SUBST(CRM_DAEMON_GROUP)

	CRM_PACEMAKER_DIR=${localstatedir}/lib/pacemaker
	AC_DEFINE_UNQUOTED(CRM_PACEMAKER_DIR,"$CRM_PACEMAKER_DIR", Location to store directory produced by Pacemaker daemons)
	AC_SUBST(CRM_PACEMAKER_DIR)

	CRM_BLACKBOX_DIR=${localstatedir}/lib/pacemaker/blackbox
	AC_DEFINE_UNQUOTED(CRM_BLACKBOX_DIR,"$CRM_BLACKBOX_DIR", Where to keep blackbox dumps)
	AC_SUBST(CRM_BLACKBOX_DIR)

	PE_STATE_DIR="${localstatedir}/lib/pacemaker/pengine"
	AC_DEFINE_UNQUOTED(PE_STATE_DIR,"$PE_STATE_DIR", Where to keep scheduler outputs)
	AC_SUBST(PE_STATE_DIR)

	CRM_CONFIG_DIR="${localstatedir}/lib/pacemaker/cib"
	AC_DEFINE_UNQUOTED(CRM_CONFIG_DIR,"$CRM_CONFIG_DIR", Where to keep configuration files)
	AC_SUBST(CRM_CONFIG_DIR)

	CRM_CONFIG_CTS="${localstatedir}/lib/pacemaker/cts"
	AC_DEFINE_UNQUOTED(CRM_CONFIG_CTS,"$CRM_CONFIG_CTS", Where to keep cts stateful data)
	AC_SUBST(CRM_CONFIG_CTS)

	CRM_DAEMON_DIR="${libexecdir}/pacemaker"
	AC_DEFINE_UNQUOTED(CRM_DAEMON_DIR,"$CRM_DAEMON_DIR", Location for Pacemaker daemons)
	AC_SUBST(CRM_DAEMON_DIR)

	CRM_STATE_DIR="${runstatedir}/crm"
	AC_DEFINE_UNQUOTED([CRM_STATE_DIR], ["$CRM_STATE_DIR"],
	[Where to keep state files and sockets])
	AC_SUBST(CRM_STATE_DIR)

	CRM_RSCTMP_DIR="${runstatedir}/resource-agents"
	AC_DEFINE_UNQUOTED(CRM_RSCTMP_DIR,"$CRM_RSCTMP_DIR", Where resource agents should keep state files)
	AC_SUBST(CRM_RSCTMP_DIR)

	PACEMAKER_CONFIG_DIR="${sysconfdir}/pacemaker"
	AC_DEFINE_UNQUOTED(PACEMAKER_CONFIG_DIR,"$PACEMAKER_CONFIG_DIR", Where to keep configuration files like authkey)
	AC_SUBST(PACEMAKER_CONFIG_DIR)

	OCF_RA_DIR="$OCF_ROOT_DIR/resource.d"
	AC_DEFINE_UNQUOTED(OCF_RA_DIR,"$OCF_RA_DIR", Location for OCF RAs)
	AC_SUBST(OCF_RA_DIR)

	AC_DEFINE_UNQUOTED(SBIN_DIR,"$sbindir",[Location for system binaries])

	AC_PATH_PROGS(GIT, git false)

	AC_MSG_CHECKING([build version])
	BUILD_VERSION=$Format:%h$
	if test $BUILD_VERSION != ":%h$"; then
	AC_MSG_RESULT([$BUILD_VERSION (archive hash)])
	elif test -x $GIT && test -d .git; then
	BUILD_VERSION=`$GIT log --pretty="format:%h" -n 1`
	AC_MSG_RESULT([$BUILD_VERSION (git hash)])
	else
	# The current directory name make a reasonable default
	# Most generated archives will include the hash or tag
	BASE=`basename $PWD`
	BUILD_VERSION=`echo $BASE \| sed s:.*[[Pp]]acemaker-::`
	AC_MSG_RESULT([$BUILD_VERSION (directory name)])
	fi

	AC_DEFINE_UNQUOTED(BUILD_VERSION, "$BUILD_VERSION", Build version)
	AC_SUBST(BUILD_VERSION)

	HAVE_dbus=1
	PKG_CHECK_MODULES([DBUS], [dbus-1],
	[CPPFLAGS="${CPPFLAGS} ${DBUS_CFLAGS}"],
	[HAVE_dbus=0])
	AC_DEFINE_UNQUOTED(SUPPORT_DBUS, $HAVE_dbus, Support dbus)
	AM_CONDITIONAL(BUILD_DBUS, test $HAVE_dbus = 1)
	AC_CHECK_TYPES([DBusBasicValue],,,[[#include <dbus/dbus.h>]])
	if test $HAVE_dbus = 0; then
	PC_NAME_DBUS=""
	else
	PC_NAME_DBUS="dbus-1"
	fi
	AC_SUBST(PC_NAME_DBUS)

	AS_CASE([$enable_systemd],
	[$REQUIRED], [
	AS_IF([test $HAVE_dbus = 0],
	[AC_MSG_FAILURE([Cannot support systemd resources without DBus])])
	AS_IF([test "$ac_cv_have_decl_CLOCK_MONOTONIC" = "no"],
	[AC_MSG_FAILURE([Cannot support systemd resources without monotonic clock])])
	AS_IF([check_systemdsystemunitdir], [],
	[AC_MSG_FAILURE([Cannot support systemd resources without systemdsystemunitdir])])
	],
	[$OPTIONAL], [
	AS_IF([test $HAVE_dbus = 0 \
	\|\| test "$ac_cv_have_decl_CLOCK_MONOTONIC" = "no"],
	[enable_systemd=$DISABLED],
	[
	AC_MSG_CHECKING([for systemd version (using dbus-send)])
	ret=$({ dbus-send --system --print-reply \
	--dest=org.freedesktop.systemd1 \
	/org/freedesktop/systemd1 \
	org.freedesktop.DBus.Properties.Get \
	string:org.freedesktop.systemd1.Manager \
	string:Version 2>/dev/null \
	\|\| echo "version unavailable"; } \| tail -n1)
	# sanitize output a bit (interested just in value, not type),
	# ret is intentionally unenquoted so as to normalize whitespace
	ret=$(echo ${ret} \| cut -d' ' -f2-)
	AC_MSG_RESULT([${ret}])
	AS_IF([test "$ret" != "unavailable" \
	\|\| systemctl --version 2>/dev/null \| grep -q systemd],
	[
	AS_IF([check_systemdsystemunitdir],
	[enable_systemd=$REQUIRED],
	[enable_systemd=$DISABLED])
	],
	[enable_systemd=$DISABLED]
	)
	])
	],
	)
	AC_MSG_CHECKING([whether to enable support for managing resources via systemd])
	AS_IF([test $enable_systemd -eq $DISABLED], [AC_MSG_RESULT([no])],
	[
	AC_MSG_RESULT([yes])
	PCMK_FEATURES="$PCMK_FEATURES systemd"
	]
	)
	AC_SUBST([systemdsystemunitdir])
	AC_DEFINE_UNQUOTED([SUPPORT_SYSTEMD], [$enable_systemd],
	[Support systemd resources])
	AM_CONDITIONAL([BUILD_SYSTEMD], [test $enable_systemd = $REQUIRED])
	AC_SUBST(SUPPORT_SYSTEMD)

	AS_CASE([$enable_upstart],
	[$REQUIRED], [
	AS_IF([test $HAVE_dbus = 0],
	[AC_MSG_FAILURE([Cannot support Upstart resources without DBus])])
	],
	[$OPTIONAL], [
	AS_IF([test $HAVE_dbus = 0], [enable_upstart=$DISABLED],
	[
	AC_MSG_CHECKING([for Upstart version (using dbus-send)])
	ret=$({ dbus-send --system --print-reply \
	--dest=com.ubuntu.Upstart \
	/com/ubuntu/Upstart org.freedesktop.DBus.Properties.Get \
	string:com.ubuntu.Upstart0_6 string:version 2>/dev/null \
	\|\| echo "version unavailable"; } \| tail -n1)
	# sanitize output a bit (interested just in value, not type),
	# ret is intentionally unenquoted so as to normalize whitespace
	ret=$(echo ${ret} \| cut -d' ' -f2-)
	AC_MSG_RESULT([${ret}])
	AS_IF([test "$ret" != "unavailable" \
	\|\| initctl --version 2>/dev/null \| grep -q upstart],
	[enable_upstart=$REQUIRED],
	[enable_upstart=$DISABLED]
	)
	])
	],
	)
	AC_MSG_CHECKING([whether to enable support for managing resources via Upstart])
	AS_IF([test $enable_upstart -eq $DISABLED], [AC_MSG_RESULT([no])],
	[
	AC_MSG_RESULT([yes])
	PCMK_FEATURES="$PCMK_FEATURES upstart"
	]
	)
	AC_DEFINE_UNQUOTED([SUPPORT_UPSTART], [$enable_upstart],
	[Support Upstart resources])
	AM_CONDITIONAL([BUILD_UPSTART], [test $enable_upstart -eq $REQUIRED])
	AC_SUBST(SUPPORT_UPSTART)

	AS_CASE([$with_nagios],
	[$REQUIRED], [
	AS_IF([test "$ac_cv_have_decl_CLOCK_MONOTONIC" = "no"],
	[AC_MSG_FAILURE([Cannot support nagios resources without monotonic clock])])
	],
	[$OPTIONAL], [
	AS_IF([test "$ac_cv_have_decl_CLOCK_MONOTONIC" = "no"],
	[with_nagios=$DISABLED], [with_nagios=$REQUIRED])
	]
	)
	AS_IF([test $with_nagios -eq $REQUIRED], [PCMK_FEATURES="$PCMK_FEATURES nagios"])
	AC_DEFINE_UNQUOTED([SUPPORT_NAGIOS], [$with_nagios], [Support nagios plugins])
	AM_CONDITIONAL([BUILD_NAGIOS], [test $with_nagios -eq $REQUIRED])

	if test x"$NAGIOS_PLUGIN_DIR" = x""; then
	NAGIOS_PLUGIN_DIR="${libexecdir}/nagios/plugins"
	fi

	AC_DEFINE_UNQUOTED(NAGIOS_PLUGIN_DIR, "$NAGIOS_PLUGIN_DIR", Directory for nagios plugins)
	AC_SUBST(NAGIOS_PLUGIN_DIR)

	if test x"$NAGIOS_METADATA_DIR" = x""; then
	NAGIOS_METADATA_DIR="${datadir}/nagios/plugins-metadata"
	fi

	AC_DEFINE_UNQUOTED(NAGIOS_METADATA_DIR, "$NAGIOS_METADATA_DIR", Directory for nagios plugins metadata)
	AC_SUBST(NAGIOS_METADATA_DIR)

	STACKS=""
	CLUSTERLIBS=""
	PC_NAME_CLUSTER=""

	dnl ========================================================================
	dnl Cluster stack - Corosync
	dnl ========================================================================

	COROSYNC_LIBS=""

	AS_CASE([$with_corosync],
	[$REQUIRED], [
	# These will be fatal if unavailable
	PKG_CHECK_MODULES([cpg], [libcpg])
	PKG_CHECK_MODULES([cfg], [libcfg])
	PKG_CHECK_MODULES([cmap], [libcmap])
	PKG_CHECK_MODULES([quorum], [libquorum])
	PKG_CHECK_MODULES([libcorosync_common], [libcorosync_common])
	]
	[$OPTIONAL], [
	PKG_CHECK_MODULES([cpg], [libcpg], [], [with_corosync=$DISABLED])
	PKG_CHECK_MODULES([cfg], [libcfg], [], [with_corosync=$DISABLED])
	PKG_CHECK_MODULES([cmap], [libcmap], [], [with_corosync=$DISABLED])
	PKG_CHECK_MODULES([quorum], [libquorum], [], [with_corosync=$DISABLED])
	PKG_CHECK_MODULES([libcorosync_common], [libcorosync_common], [], [with_corosync=$DISABLED])
	AS_IF([test $with_corosync -ne $DISABLED], [with_corosync=$REQUIRED])
	]
	)
	AS_IF([test $with_corosync -ne $DISABLED],
	[
	AC_MSG_CHECKING([for Corosync 2 or later])
	AC_MSG_RESULT([yes])
	CFLAGS="$CFLAGS $libqb_CFLAGS $cpg_CFLAGS $cfg_CFLAGS $cmap_CFLAGS $quorum_CFLAGS $libcorosync_common_CFLAGS"
	COROSYNC_LIBS="$COROSYNC_LIBS $cpg_LIBS $cfg_LIBS $cmap_LIBS $quorum_LIBS $libcorosync_common_LIBS"
	CLUSTERLIBS="$CLUSTERLIBS $COROSYNC_LIBS"
	PC_NAME_CLUSTER="$PC_CLUSTER_NAME libcfg libcmap libcorosync_common libcpg libquorum"
	STACKS="$STACKS corosync-ge-2"

	dnl Shutdown tracking added (back) to corosync Jan 2021
	saved_LIBS="$LIBS"
	LIBS="$LIBS $COROSYNC_LIBS"
	AC_CHECK_FUNCS(corosync_cfg_trackstart,
	AC_DEFINE(HAVE_COROSYNC_CFG_TRACKSTART, 1,
	[Have corosync_cfg_trackstart function]))
	LIBS="$saved_LIBS"
	]
	)
	AC_DEFINE_UNQUOTED([SUPPORT_COROSYNC], [$with_corosync],
	[Support the Corosync messaging and membership layer])
	AM_CONDITIONAL([BUILD_CS_SUPPORT], [test $with_corosync -eq $REQUIRED])
	AC_SUBST([SUPPORT_COROSYNC])

	dnl
	dnl Cluster stack - Sanity
	dnl

	AS_IF([test "x$STACKS" != "x"], [AC_MSG_NOTICE([Supported stacks:${STACKS}])],
	[AC_MSG_FAILURE([At least one cluster stack must be supported])])

	PCMK_FEATURES="${PCMK_FEATURES}${STACKS}"

	AC_SUBST(CLUSTERLIBS)
	AC_SUBST(PC_NAME_CLUSTER)

	dnl ========================================================================
	dnl CIB secrets
	dnl ========================================================================

	AS_IF([test $with_cibsecrets -ne $DISABLED],
	[
	with_cibsecrets=$REQUIRED
	PCMK_FEATURES="$PCMK_FEATURES cibsecrets"
	LRM_CIBSECRETS_DIR="${localstatedir}/lib/pacemaker/lrm/secrets"
	AC_DEFINE_UNQUOTED([LRM_CIBSECRETS_DIR], ["$LRM_CIBSECRETS_DIR"],
	[Location for CIB secrets])
	AC_SUBST([LRM_CIBSECRETS_DIR])
	]
	)
	AC_DEFINE_UNQUOTED([SUPPORT_CIBSECRETS], [$with_cibsecrets], [Support CIB secrets])
	AM_CONDITIONAL([BUILD_CIBSECRETS], [test $with_cibsecrets -eq $REQUIRED])

	dnl ========================================================================
	dnl GnuTLS
	dnl ========================================================================

	dnl Require GnuTLS >=2.12.0 (2011-03) for Pacemaker Remote support
	PC_NAME_GNUTLS=""
	AS_CASE([$with_gnutls],
	[$REQUIRED], [
	REQUIRE_LIB([gnutls], [gnutls_sec_param_to_pk_bits])
	REQUIRE_HEADER([gnutls/gnutls.h])
	],
	[$OPTIONAL], [
	AC_CHECK_LIB([gnutls], [gnutls_sec_param_to_pk_bits],
	[], [with_gnutls=$DISABLED])
	AC_CHECK_HEADERS([gnutls/gnutls.h], [], [with_gnutls=$DISABLED])
	]
	)
	AS_IF([test $with_gnutls -ne $DISABLED],
	[
	PC_NAME_GNUTLS="gnutls"
	PCMK_FEATURES="$PCMK_FEATURES remote"
	]
	)
	AC_SUBST([PC_NAME_GNUTLS])
	AM_CONDITIONAL([BUILD_REMOTE], [test $with_gnutls -ne $DISABLED])

	dnl ========================================================================
	dnl System Health
	dnl ========================================================================

	dnl Check if servicelog development package is installed
	SERVICELOG=servicelog-1
	SERVICELOG_EXISTS="no"
	AC_MSG_CHECKING([for $SERVICELOG packages])
	if
	$PKG_CONFIG --exists $SERVICELOG
	then
	PKG_CHECK_MODULES([SERVICELOG], [servicelog-1])
	SERVICELOG_EXISTS="yes"
	PCMK_FEATURES="$PCMK_FEATURES servicelog"
	fi
	AC_MSG_RESULT([$SERVICELOG_EXISTS])
	AM_CONDITIONAL(BUILD_SERVICELOG, test "$SERVICELOG_EXISTS" = "yes")

	dnl Check if OpenIMPI packages and servicelog are installed
	OPENIPMI="OpenIPMI OpenIPMIposix"
	OPENIPMI_SERVICELOG_EXISTS="no"
	AC_MSG_CHECKING([for $SERVICELOG $OPENIPMI packages])
	if
	$PKG_CONFIG --exists $OPENIPMI $SERVICELOG
	then
	PKG_CHECK_MODULES([OPENIPMI_SERVICELOG],[OpenIPMI OpenIPMIposix])
	REQUIRE_HEADER([malloc.h])
	OPENIPMI_SERVICELOG_EXISTS="yes"
	PCMK_FEATURES="$PCMK_FEATURES ipmiservicelogd"
	fi
	AC_MSG_RESULT([$OPENIPMI_SERVICELOG_EXISTS])
	AM_CONDITIONAL(BUILD_OPENIPMI_SERVICELOG, test "$OPENIPMI_SERVICELOG_EXISTS" = "yes")

	# --- ASAN/UBSAN/TSAN (see man gcc) ---
	# when using SANitizers, we need to pass the -fsanitize..
	# to both CFLAGS and LDFLAGS. The CFLAGS/LDFLAGS must be
	# specified as first in the list or there will be runtime
	# issues (for example user has to LD_PRELOAD asan for it to work
	# properly).

	AS_IF([test -n "${SANITIZERS}"], [
	SANITIZERS=$(echo $SANITIZERS \| sed -e 's/,/ /g')
	for SANITIZER in $SANITIZERS
	do
	AS_CASE([$SANITIZER],
	[asan\|ASAN], [
	SANITIZERS_CFLAGS="$SANITIZERS_CFLAGS -fsanitize=address"
	SANITIZERS_LDFLAGS="$SANITIZERS_LDFLAGS -fsanitize=address -lasan"
	REQUIRE_LIB([asan],[main])
	],
	[ubsan\|UBSAN], [
	SANITIZERS_CFLAGS="$SANITIZERS_CFLAGS -fsanitize=undefined"
	SANITIZERS_LDFLAGS="$SANITIZERS_LDFLAGS -fsanitize=undefined -lubsan"
	REQUIRE_LIB([ubsan],[main])
	],
	[tsan\|TSAN], [
	SANITIZERS_CFLAGS="$SANITIZERS_CFLAGS -fsanitize=thread"
	SANITIZERS_LDFLAGS="$SANITIZERS_LDFLAGS -fsanitize=thread -ltsan"
	REQUIRE_LIB([tsan],[main])
	])
	done
	])


	dnl ========================================================================
	dnl Compiler flags
	dnl ========================================================================

	dnl Make sure that CFLAGS is not exported. If the user did
	dnl not have CFLAGS in their environment then this should have
	dnl no effect. However if CFLAGS was exported from the user's
	dnl environment, then the new CFLAGS will also be exported
	dnl to sub processes.
	if export \| fgrep " CFLAGS=" > /dev/null; then
	SAVED_CFLAGS="$CFLAGS"
	unset CFLAGS
	CFLAGS="$SAVED_CFLAGS"
	unset SAVED_CFLAGS
	fi

	AC_ARG_VAR([CFLAGS_HARDENED_LIB], [extra C compiler flags for hardened libraries])
	AC_ARG_VAR([LDFLAGS_HARDENED_LIB], [extra linker flags for hardened libraries])

	AC_ARG_VAR([CFLAGS_HARDENED_EXE], [extra C compiler flags for hardened executables])
	AC_ARG_VAR([LDFLAGS_HARDENED_EXE], [extra linker flags for hardened executables])

	CC_EXTRAS=""

	AS_IF([test "$GCC" != yes], [CFLAGS="$CFLAGS -g"], [
	CFLAGS="$CFLAGS -ggdb"

	dnl When we don't have diagnostic push / pull, we can't explicitly disable
	dnl checking for nonliteral formats in the places where they occur on purpose
	dnl thus we disable nonliteral format checking globally as we are aborting
	dnl on warnings.
	dnl what makes the things really ugly is that nonliteral format checking is
	dnl obviously available as an extra switch in very modern gcc but for older
	dnl gcc this is part of -Wformat=2
	dnl so if we have push/pull we can enable -Wformat=2 -Wformat-nonliteral
	dnl if we don't have push/pull but -Wformat-nonliteral we can enable -Wformat=2
	dnl otherwise none of both

	gcc_diagnostic_push_pull=no
	cc_temp_flags "$CFLAGS $WERROR"
	AC_MSG_CHECKING([for gcc diagnostic push / pull])
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
	#pragma GCC diagnostic push
	#pragma GCC diagnostic pop
	]])],
	[
	AC_MSG_RESULT([yes])
	gcc_diagnostic_push_pull=yes
	], AC_MSG_RESULT([no]))
	cc_restore_flags

	AS_IF([cc_supports_flag "-Wformat-nonliteral"],
	[gcc_format_nonliteral=yes],
	[gcc_format_nonliteral=no])

	# We had to eliminate -Wnested-externs because of libtool changes
	# Make sure to order options so that the former stand for prerequisites
	# of the latter (e.g., -Wformat-nonliteral requires -Wformat).
	EXTRA_FLAGS="-fgnu89-inline"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wall"
	EXTRA_FLAGS="$EXTRA_FLAGS -Waggregate-return"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wbad-function-cast"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wcast-align"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wdeclaration-after-statement"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wendif-labels"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wfloat-equal"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wformat-security"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wmissing-prototypes"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wmissing-declarations"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wnested-externs"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wno-long-long"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wno-strict-aliasing"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wpointer-arith"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wstrict-prototypes"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wwrite-strings"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wunused-but-set-variable"
	EXTRA_FLAGS="$EXTRA_FLAGS -Wunsigned-char"

	AS_IF([test "x$gcc_diagnostic_push_pull" = "xyes"],
	[
	AC_DEFINE([GCC_FORMAT_NONLITERAL_CHECKING_ENABLED], [],
	[gcc can complain about nonliterals in format])
	EXTRA_FLAGS="$EXTRA_FLAGS -Wformat=2 -Wformat-nonliteral"
	],
	[test "x$gcc_format_nonliteral" = "xyes"],
	[EXTRA_FLAGS="$EXTRA_FLAGS -Wformat=2"])

	# Additional warnings it might be nice to enable one day
	# -Wshadow
	# -Wunreachable-code
	for j in $EXTRA_FLAGS
	do
	AS_IF([cc_supports_flag $CC_EXTRAS $j], [CC_EXTRAS="$CC_EXTRAS $j"])
	done

	AC_MSG_NOTICE([Using additional gcc flags: ${CC_EXTRAS}])
	])

	dnl
	dnl Hardening flags
	dnl
	dnl The prime control of whether to apply (targeted) hardening build flags and
	dnl which ones is --{enable,disable}-hardening option passed to ./configure:
	dnl
	dnl --enable-hardening=try (default):
	dnl depending on whether any of CFLAGS_HARDENED_EXE, LDFLAGS_HARDENED_EXE,
	dnl CFLAGS_HARDENED_LIB or LDFLAGS_HARDENED_LIB environment variables
	dnl (see below) is set and non-null, all these custom flags (even if not
	dnl set) are used as are, otherwise the best effort is made to offer
	dnl reasonably strong hardening in several categories (RELRO, PIE,
	dnl "bind now", stack protector) according to what the selected toolchain
	dnl can offer
	dnl
	dnl --enable-hardening:
	dnl same effect as --enable-hardening=try when the environment variables
	dnl in question are suppressed
	dnl
	dnl --disable-hardening:
	dnl do not apply any targeted hardening measures at all
	dnl
	dnl The user-injected environment variables that regulate the hardening in
	dnl default case are as follows:
	dnl
	dnl * CFLAGS_HARDENED_EXE, LDFLAGS_HARDENED_EXE
	dnl compiler and linker flags (respectively) for daemon programs
	dnl (pacemakerd, pacemaker-attrd, pacemaker-controld, pacemaker-execd,
	dnl cib, stonithd, pacemaker-remoted, pacemaker-schedulerd)
	dnl
	dnl * CFLAGS_HARDENED_LIB, LDFLAGS_HARDENED_LIB
	dnl compiler and linker flags (respectively) for libraries linked
	dnl with the daemon programs
	dnl
	dnl Note that these are purposedly targeted variables (addressing particular
	dnl targets all over the scattered Makefiles) and have no effect outside of
	dnl the predestined scope (e.g., CLI utilities). For a global reach,
	dnl use CFLAGS, LDFLAGS, etc. as usual.
	dnl
	dnl For guidance on the suitable flags consult, for instance:
	dnl https://fedoraproject.org/wiki/Changes/Harden_All_Packages#Detailed_Harden_Flags_Description
	dnl https://owasp.org/index.php/C-Based_Toolchain_Hardening#GCC.2FBinutils
	dnl

	AS_IF([test $enable_hardening -eq $OPTIONAL],
	[
	AS_IF([test "$(env \| grep -Ec '^(C\|LD)FLAGS_HARDENED_(EXE\|LIB)=.')" = 0],
	[enable_hardening=$REQUIRED],
	[AC_MSG_NOTICE([Hardening: using custom flags from environment])]
	)
	],
	[
	unset CFLAGS_HARDENED_EXE
	unset CFLAGS_HARDENED_LIB
	unset LDFLAGS_HARDENED_EXE
	unset LDFLAGS_HARDENED_LIB
	]
	)
	AS_CASE([$enable_hardening],
	[$DISABLED], [AC_MSG_NOTICE([Hardening: explicitly disabled])],
	[$REQUIRED], [
	CFLAGS_HARDENED_EXE=
	CFLAGS_HARDENED_LIB=
	LDFLAGS_HARDENED_EXE=
	LDFLAGS_HARDENED_LIB=
	relro=0
	pie=0
	bindnow=0
	# daemons incl. libs: partial RELRO
	flag="-Wl,-z,relro"
	CC_CHECK_LDFLAGS(["${flag}"],
	[
	LDFLAGS_HARDENED_EXE="${LDFLAGS_HARDENED_EXE} ${flag}"
	LDFLAGS_HARDENED_LIB="${LDFLAGS_HARDENED_LIB} ${flag}"
	relro=1
	])
	# daemons: PIE for both CFLAGS and LDFLAGS
	AS_IF([cc_supports_flag -fPIE],
	[
	flag="-pie"
	CC_CHECK_LDFLAGS(["${flag}"],
	[
	CFLAGS_HARDENED_EXE="${CFLAGS_HARDENED_EXE} -fPIE"
	LDFLAGS_HARDENED_EXE="${LDFLAGS_HARDENED_EXE} ${flag}"
	pie=1
	])
	]
	)
	# daemons incl. libs: full RELRO if sensible + as-needed linking
	# so as to possibly mitigate startup performance
	# hit caused by excessive linking with unneeded
	# libraries
	AS_IF([test "${relro}" = 1 && test "${pie}" = 1],
	[
	flag="-Wl,-z,now"
	CC_CHECK_LDFLAGS(["${flag}"],
	[
	LDFLAGS_HARDENED_EXE="${LDFLAGS_HARDENED_EXE} ${flag}"
	LDFLAGS_HARDENED_LIB="${LDFLAGS_HARDENED_LIB} ${flag}"
	bindnow=1
	])
	]
	)
	AS_IF([test "${bindnow}" = 1],
	[
	flag="-Wl,--as-needed"
	CC_CHECK_LDFLAGS(["${flag}"],
	[
	LDFLAGS_HARDENED_EXE="${LDFLAGS_HARDENED_EXE} ${flag}"
	LDFLAGS_HARDENED_LIB="${LDFLAGS_HARDENED_LIB} ${flag}"
	])
	])
	# universal: prefer strong > all > default stack protector if possible
	flag=
	AS_IF([cc_supports_flag -fstack-protector-strong],
	[flag="-fstack-protector-strong"],
	[cc_supports_flag -fstack-protector-all],
	[flag="-fstack-protector-all"],
	[cc_supports_flag -fstack-protector],
	[flag="-fstack-protector"]
	)
	AS_IF([test -n "${flag}"],
	[
	CC_EXTRAS="${CC_EXTRAS} ${flag}"
	stackprot=1
	]
	)
	AS_IF([test "${relro}" = 1 \|\| test "${pie}" = 1 \|\| test "${stackprot}" = 1],
	[AC_MSG_NOTICE([Hardening: relro=${relro} pie=${pie} bindnow=${bindnow} stackprot=${flag}])],
	[AC_MSG_WARN([Hardening: no suitable features in the toolchain detected])]
	)
	],
	)

	CFLAGS="$SANITIZERS_CFLAGS $CFLAGS $CC_EXTRAS"
	LDFLAGS="$SANITIZERS_LDFLAGS $LDFLAGS"
	CFLAGS_HARDENED_EXE="$SANITIZERS_CFLAGS $CFLAGS_HARDENED_EXE"
	LDFLAGS_HARDENED_EXE="$SANITIZERS_LDFLAGS $LDFLAGS_HARDENED_EXE"

	NON_FATAL_CFLAGS="$CFLAGS"
	AC_SUBST(NON_FATAL_CFLAGS)

	dnl
	dnl We reset CFLAGS to include our warnings after all function
	dnl checking goes on, so that our warning flags don't keep the
	dnl AC_*FUNCS() calls above from working. In particular, -Werror will
	dnl always cause us troubles if we set it before here.
	dnl
	dnl
	AS_IF([test $enable_fatal_warnings -ne $DISABLED], [
	AC_MSG_NOTICE([Enabling fatal compiler warnings])
	CFLAGS="$CFLAGS $WERROR"
	])
	AC_SUBST(CFLAGS)

	dnl This is useful for use in Makefiles that need to remove one specific flag
	CFLAGS_COPY="$CFLAGS"
	AC_SUBST(CFLAGS_COPY)

	AC_SUBST(LIBADD_DL) dnl extra flags for dynamic linking libraries

	AC_SUBST(LOCALE)

	dnl Options for cleaning up the compiler output
	AS_IF([test $enable_quiet -ne $DISABLED],
	[
	AC_MSG_NOTICE([Suppressing make details])
	QUIET_LIBTOOL_OPTS="--silent"
	QUIET_MAKE_OPTS="-s" # POSIX compliant
	],
	[
	QUIET_LIBTOOL_OPTS=""
	QUIET_MAKE_OPTS=""
	]
	)

	dnl Put the above variables to use
	LIBTOOL="${LIBTOOL} --tag=CC \$(QUIET_LIBTOOL_OPTS)"
	MAKEFLAGS="${MAKEFLAGS} ${QUIET_MAKE_OPTS}"

	AC_SUBST(CC)
	AC_SUBST(MAKEFLAGS)
	AC_SUBST(LIBTOOL)
	AC_SUBST(QUIET_LIBTOOL_OPTS)
	AC_DEFINE_UNQUOTED(CRM_FEATURES, "$PCMK_FEATURES", Set of enabled features)
	AC_SUBST(PCMK_FEATURES)

	dnl Files we output that need to be executable
	CONFIG_FILES_EXEC([cts/CTSlab.py],
	[cts/LSBDummy],
	[cts/OCFIPraTest.py],
	[cts/cluster_test],
	[cts/cts],
	[cts/cts-cli],
	[cts/cts-coverage],
	[cts/cts-exec],
	[cts/cts-fencing],
	[cts/cts-log-watcher],
	[cts/cts-regression],
	[cts/cts-scheduler],
	[cts/cts-support],
	[cts/lxc_autogen.sh],
	[cts/benchmark/clubench],
	[cts/fence_dummy],
	[cts/pacemaker-cts-dummyd],
	[daemons/fenced/fence_legacy],
	[doc/abi-check],
	[extra/resources/ClusterMon],
	[extra/resources/HealthSMART],
	[extra/resources/SysInfo],
	[extra/resources/ifspeed],
	[extra/resources/o2cb],
	[tools/crm_failcount],
	[tools/crm_master],
	[tools/crm_report],
	[tools/crm_standby],
	[tools/cibsecret],
	[tools/pcmk_simtimes])

	dnl Other files we output
	AC_CONFIG_FILES(Makefile \
	cts/Makefile \
	cts/CTS.py \
	cts/CTSvars.py \
	cts/benchmark/Makefile \
	cts/pacemaker-cts-dummyd@.service \
	daemons/Makefile \
	daemons/attrd/Makefile \
	daemons/based/Makefile \
	daemons/controld/Makefile \
	daemons/execd/Makefile \
	daemons/execd/pacemaker_remote \
	daemons/execd/pacemaker_remote.service \
	daemons/fenced/Makefile \
	daemons/pacemakerd/Makefile \
	daemons/pacemakerd/pacemaker \
	daemons/pacemakerd/pacemaker.service \
	daemons/pacemakerd/pacemaker.upstart \
	daemons/pacemakerd/pacemaker.combined.upstart \
	daemons/schedulerd/Makefile \
	devel/Makefile \
	doc/Doxyfile \
	doc/Makefile \
	doc/sphinx/Makefile \
	extra/Makefile \
	extra/alerts/Makefile \
	extra/resources/Makefile \
	extra/logrotate/Makefile \
	extra/logrotate/pacemaker \
	include/Makefile \
	include/crm/Makefile \
	include/crm/cib/Makefile \
	include/crm/common/Makefile \
	include/crm/cluster/Makefile \
	include/crm/fencing/Makefile \
	include/crm/pengine/Makefile \
	include/pcmki/Makefile \
	replace/Makefile \
	lib/Makefile \
	lib/libpacemaker.pc \
	lib/pacemaker.pc \
	lib/pacemaker-cib.pc \
	lib/pacemaker-lrmd.pc \
	lib/pacemaker-service.pc \
	lib/pacemaker-pe_rules.pc \
	lib/pacemaker-pe_status.pc \
	lib/pacemaker-fencing.pc \
	lib/pacemaker-cluster.pc \
	lib/common/Makefile \
	lib/common/tests/Makefile \
	lib/common/tests/agents/Makefile \
	lib/common/tests/cmdline/Makefile \
	lib/common/tests/flags/Makefile \
	lib/common/tests/operations/Makefile \
	lib/common/tests/strings/Makefile \
	lib/common/tests/utils/Makefile \
	lib/common/tests/xpath/Makefile \
	lib/cluster/Makefile \
	lib/cib/Makefile \
	lib/gnu/Makefile \
	lib/pacemaker/Makefile \
	lib/pengine/Makefile \
	lib/pengine/tests/Makefile \
	lib/pengine/tests/rules/Makefile \
	lib/fencing/Makefile \
	lib/lrmd/Makefile \
	lib/services/Makefile \
	maint/Makefile \
	tests/Makefile \
	tools/Makefile \
	tools/report.collector \
	tools/report.common \
	tools/crm_mon.service \
	tools/crm_mon.upstart \
	xml/Makefile \
	xml/pacemaker-schemas.pc \
	)

	dnl Now process the entire list of files added by previous
	dnl calls to AC_CONFIG_FILES()
	AC_OUTPUT()

	# Strip leading space from features list
	PCMK_FEATURES=`echo -e "$PCMK_FEATURES" \| sed -e 's/^ //'`

	dnl *****************
	dnl Configure summary
	dnl *****************

	AC_MSG_NOTICE([])
	AC_MSG_NOTICE([$PACKAGE configuration:])
	AC_MSG_NOTICE([ Version = ${VERSION} (Build: $BUILD_VERSION)])
	AC_MSG_NOTICE([ Features = ${PCMK_FEATURES}])
	AC_MSG_NOTICE([])
	AC_MSG_NOTICE([ Prefix = ${prefix}])
	AC_MSG_NOTICE([ Executables = ${sbindir}])
	AC_MSG_NOTICE([ Man pages = ${mandir}])
	AC_MSG_NOTICE([ Libraries = ${libdir}])
	AC_MSG_NOTICE([ Header files = ${includedir}])
	AC_MSG_NOTICE([ Arch-independent files = ${datadir}])
	AC_MSG_NOTICE([ State information = ${localstatedir}])
	AC_MSG_NOTICE([ System configuration = ${sysconfdir}])
	AC_MSG_NOTICE([ OCF agents = ${OCF_ROOT_DIR}])
	AC_MSG_NOTICE([])
	AC_MSG_NOTICE([ HA group name = ${CRM_DAEMON_GROUP}])
	AC_MSG_NOTICE([ HA user name = ${CRM_DAEMON_USER}])
	AC_MSG_NOTICE([])
	AC_MSG_NOTICE([ CFLAGS = ${CFLAGS}])
	AC_MSG_NOTICE([ CFLAGS_HARDENED_EXE = ${CFLAGS_HARDENED_EXE}])
	AC_MSG_NOTICE([ CFLAGS_HARDENED_LIB = ${CFLAGS_HARDENED_LIB}])
	AC_MSG_NOTICE([ LDFLAGS_HARDENED_EXE = ${LDFLAGS_HARDENED_EXE}])
	AC_MSG_NOTICE([ LDFLAGS_HARDENED_LIB = ${LDFLAGS_HARDENED_LIB}])
	AC_MSG_NOTICE([ Libraries = ${LIBS}])
	AC_MSG_NOTICE([ Stack Libraries = ${CLUSTERLIBS}])
	AC_MSG_NOTICE([ Unix socket auth method = ${us_auth}])
	diff --git a/mk/common.mk b/mk/common.mk
	index de3a5eab41..464e43d700 100644
	--- a/mk/common.mk
	+++ b/mk/common.mk
	@@ -1,102 +1,99 @@
	#
	# Copyright 2014-2020 the Pacemaker project contributors
	#
	# The version control history for this file may have further details.
	#
	# This source code is licensed under the GNU General Public License version 2
	# or later (GPLv2+) WITHOUT ANY WARRANTY.
	#

	#
	# Some variables to help with silent rules
	# https://www.gnu.org/software/automake/manual/html_node/Automake-silent_002drules-Option.html
	-#
	-# We require a minimum automake version of 1.11, which includes AM_V_GEN and
	-# AM_V_at, but AM_V_P is not available until 1.13.

	V ?= $(AM_DEFAULT_VERBOSITY)

	# When a make command is prefixed with one of the AM_V_* macros, it may also be
	# desirable to suffix the command with this, to silence stdout.
	PCMK_quiet = $(pcmk_quiet_$(V))
	pcmk_quiet_0 = >/dev/null
	pcmk_quiet_1 =

	# AM_V_GEN is intended to be used in custom pattern rules, and replaces echoing
	# the command used with a more concise line with "GEN" and the name of the file
	# being generated. Our AM_V_* macros are similar but more descriptive.
	AM_V_MAN = $(am__v_MAN_$(V))
	am__v_MAN_0 = @echo " MAN $@";
	am__v_MAN_1 =

	AM_V_SCHEMA = $(am__v_SCHEMA_$(V))
	am__v_SCHEMA_0 = @echo " SCHEMA $@";
	am__v_SCHEMA_1 =

	AM_V_BOOK = $(am__v_BOOK_$(V))
	am__v_BOOK_0 = @echo " BOOK $(@:%/_build=%): $(BOOK_FORMATS)";
	am__v_BOOK_1 =

	MAINTAINERCLEANFILES = Makefile.in

	AM_CPPFLAGS = -I$(top_builddir)/include -I$(top_srcdir)/include \
	-I$(top_builddir)/libltdl -I$(top_srcdir)/libltdl

	#
	# Man page builders
	#
	# We have three types of man pages:
	# - man pages for the tools
	# - man pages for OCF agents
	# - man pages for cluster properties used by daemons
	#
	# "BUILD_HELP" actually means "help2man is available", so it only controls the
	# tool man pages, which are generated by help2man. The other man pages are
	# generated via XSL transforms.
	#

	if BUILD_HELP
	man8_MANS = $(sbin_PROGRAMS:%=%.8) $(sbin_SCRIPTS:%=%.8)

	HELP2MAN_ARGS = -N --section 8 --name "Part of the Pacemaker cluster resource manager"

	# Some of our tools' help are just shell script invocations of another tool's
	# help. Putting the real tool in MAN8DEPS helps detect when the wrapped help
	# needs updating.
	#
	# If a ".inc" file exists, the tool has been converted to use glib for
	# argument parsing, otherwise it still uses the libcrmcommon functions.
	#
	# @TODO Drop MAN8DEPS once we've converted all tools to libpacemaker API calls
	# and all wrappers to C code.
	%.8: % $(MAN8DEPS)
	$(AM_V_at)chmod a+x $(abs_builddir)/$<
	$(AM_V_MAN)if [ -f $(top_srcdir)/tools/$@.inc ]; then \
	PATH=$(abs_builddir):$$PATH $(HELP2MAN) $(HELP2MAN_ARGS) \
	-h --help-all \
	--no-discard-stderr \
	-i $(top_srcdir)/tools/$@.inc $(abs_builddir)/$< \
	\| sed -f $(top_srcdir)/tools/fix-manpages > $@ ; \
	else \
	PATH=$(abs_builddir):$$PATH $(HELP2MAN) $(HELP2MAN_ARGS) \
	$(abs_builddir)/$< --output $@ ; \
	fi
	endif

	# Save raw XML meta-data from daemon executables, for later conversion into man
	# pages. (Note that more specific rules may override this for creating other
	# types of XML files.)
	%.xml: %
	$(AM_V_at)$(abs_builddir)/$< metadata > $@

	# Process the raw daemon and OCF agent meta-data output using our
	# meta-data-to-docbook-XML tranform.
	%.dbook: %.xml
	$(AM_V_at)$(XSLTPROC) --nonet --novalid --stringparam man.name $* \
	$(DBOOK_OPTS) $(top_srcdir)/xml/ocf-meta2man.xsl \
	$(abs_builddir)/$< > $(abs_builddir)/$@

	# Generate the actual man page for an OCF resource agent from the intermediate
	# docbook XML.
	%.7: %.dbook
	$(AM_V_MAN)$(XSLTPROC) $(MANPAGE_XSLT) $(abs_builddir)/$< $(PCMK_quiet)

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