app-metrics/collectd: fix another modern c issue in configure (for nut)

Bug: https://bugs.gentoo.org/879633
Signed-off-by: Sam James <sam@gentoo.org>

2 files changed, 706 insertions, 0 deletions

diff --git a/app-metrics/collectd/collectd-5.12.0-r9.ebuild b/app-metrics/collectd/collectd-5.12.0-r9.ebuild
new file mode 100644
index 000000000000..04af4bc67d49
--- /dev/null
+++ b/app-metrics/collectd/collectd-5.12.0-r9.ebuild
@@ -0,0 +1,563 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI="7"
+
+JAVA_PKG_OPT_USE="collectd_plugins_java"
+LUA_COMPAT=( lua5-{1..4} )
+PYTHON_COMPAT=( python3_{9..11} )
+
+inherit autotools fcaps java-pkg-opt-2 linux-info lua-single perl-functions python-single-r1 systemd tmpfiles udev
+
+DESCRIPTION="Collects system statistics and provides mechanisms to store the values"
+
+HOMEPAGE="https://collectd.org/"
+SRC_URI="https://github.com/${PN}/${PN}/releases/download/${P}/${P}.tar.bz2"
+
+LICENSE="MIT GPL-2 GPL-2+ GPL-3 GPL-3+"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~x86"
+IUSE="contrib debug java perl selinux static-libs udev xfs"
+
+# The plugin lists have to follow here since they extend IUSE
+
+# Plugins that don't build (e.g. dependencies not in Gentoo)
+# apple_sensors:  Requires libIOKit
+# amqp1:          Requires libqpid-proton
+# aquaero:        Requires aerotools-ng/libaquaero5
+# barometer:      Requires libi2c (i2c_smbus_read_i2c_block_data)
+# dpdkevents:     Requires dpdk
+# dpdkstat:       Requires dpdk
+# dpdk_telemetry: Requires dpdk
+# grpc:           Requires libgrpc
+# intel_pmu:      Requires libjevents (pmu-tools)
+# intel_rdt:      Requires libpqos from intel-cmt-cat project
+# lpar:           Requires libperfstat (AIX only)
+# mic:            Requires Intel Many Integrated Core Architecture API
+#                 (part of Intel's  Xeon Phi software)
+# netapp:         Requires libnetapp (http://communities.netapp.com/docs/DOC-1110)
+# onewire:        Requires sys-fs/owfs which was removed from repository
+# pf:             Requires BSD packet filter
+# pinba:          Requires MySQL Pinba engine (http://pinba.org/)
+# redfish:        Requires libredfish
+# tape:           Requires libkstat (Solaris only)
+# tokyotyrant:    Requires tokyotyrant
+# write_riemann:  Requires riemann-c-client
+# xmms:           Requires libxmms (v1)
+# zone:           Solaris only...
+COLLECTD_IMPOSSIBLE_PLUGINS="apple_sensors amqp1 aquaero barometer
+	dpdkevents dpdkstat dpdk_telemetry grpc intel_pmu intel_rdt lpar
+	mic netapp onewire pf pinba redfish tape tokyotyrant write_riemann
+	xmms zone"
+
+# Plugins that have been (compile) tested and can be enabled via COLLECTD_PLUGINS
+COLLECTD_TESTED_PLUGINS="aggregation amqp apache apcups ascent battery bind
+	buddyinfo capabilities ceph cgroups check_uptime chrony connectivity
+	conntrack contextswitch cpu cpufreq cpusleep csv curl curl_json
+	curl_xml dbi df disk dns drbd email entropy ethstat exec fhcount
+	filecount fscache gps gpu_nvidia hddtemp hugepages interface ipc
+	ipmi iptables ipvs irq java lua load logfile logparser log_logstash
+	madwifi match_empty_counter match_hashed match_regex match_timediff
+	match_value mbmon mcelog md memcachec memcached memory modbus mqtt
+	multimeter mysql netlink network network nfs nginx notify_desktop
+	notify_email notify_nagios ntpd numa nut olsrd onewire openldap
+	openvpn oracle ovs_events ovs_stats pcie_errors perl ping postgresql
+	powerdns procevent processes protocols python redis routeros
+	rrdcached rrdtool sensors serial sigrok slurm smart snmp snmp_agent
+	statsd swap synproxy sysevent syslog table tail tail_csv
+	target_notification target_replace target_scale target_set tcpconns
+	teamspeak2 ted thermal threshold turbostat ubi unixsock uptime users
+	uuid varnish virt vmem vserver wireless write_graphite write_http
+	write_influxdb_udp write_kafka write_log write_mongodb write_prometheus
+	write_redis write_sensu write_stackdriver write_syslog write_tsdb
+	xencpu zfs_arc zookeeper"
+
+COLLECTD_DISABLED_PLUGINS="${COLLECTD_IMPOSSIBLE_PLUGINS}"
+
+COLLECTD_ALL_PLUGINS=${COLLECTD_TESTED_PLUGINS}
+
+for plugin in ${COLLECTD_ALL_PLUGINS}; do
+	IUSE="${IUSE} collectd_plugins_${plugin}"
+done
+unset plugin
+
+# Now come the dependencies.
+
+COMMON_DEPEND="
+	acct-group/collectd
+	acct-user/collectd
+	dev-libs/libgcrypt:=
+	dev-libs/libltdl:0=
+	sys-libs/libcap
+	perl?					( dev-lang/perl:=[ithreads] )
+	udev?					( virtual/udev )
+	xfs?					( sys-fs/xfsprogs )
+	collectd_plugins_amqp?			( net-libs/rabbitmq-c )
+	collectd_plugins_apache?		( net-misc/curl:0= )
+	collectd_plugins_ascent?		( net-misc/curl:0= dev-libs/libxml2:2= )
+	collectd_plugins_bind?			( net-misc/curl:0= dev-libs/libxml2:2= )
+	collectd_plugins_ceph?			( dev-libs/yajl:= )
+	collectd_plugins_capabilities?		( dev-libs/jansson net-libs/libmicrohttpd:= )
+	collectd_plugins_connectivity?		( dev-libs/yajl:= net-libs/libmnl )
+	collectd_plugins_curl?			( net-misc/curl:0= )
+	collectd_plugins_curl_json?		( net-misc/curl:0= dev-libs/yajl:= )
+	collectd_plugins_curl_xml?		( net-misc/curl:0= dev-libs/libxml2:2= )
+	collectd_plugins_dbi?			( dev-db/libdbi )
+	collectd_plugins_dns?			( net-libs/libpcap )
+	collectd_plugins_gps?			( sci-geosciences/gpsd:= )
+	collectd_plugins_gpu_nvidia?		( dev-util/nvidia-cuda-toolkit )
+	collectd_plugins_ipmi?			( >=sys-libs/openipmi-2.0.16-r1 )
+	collectd_plugins_iptables?		( >=net-firewall/iptables-1.4.13:0= )
+	collectd_plugins_log_logstash?		( dev-libs/yajl:= )
+	collectd_plugins_lua?			( ${LUA_DEPS} )
+	collectd_plugins_memcachec?		( dev-libs/libmemcached )
+	collectd_plugins_modbus?		( dev-libs/libmodbus )
+	collectd_plugins_mqtt?			( app-misc/mosquitto )
+	collectd_plugins_mysql?			( dev-db/mysql-connector-c:= )
+	collectd_plugins_netlink?		( net-libs/libmnl )
+	collectd_plugins_nginx?			( net-misc/curl:0= )
+	collectd_plugins_notify_desktop?	( x11-libs/libnotify )
+	collectd_plugins_notify_email?		( net-libs/libesmtp:= )
+	collectd_plugins_nut?			( >=sys-power/nut-2.7.2-r2 )
+	collectd_plugins_openldap?		( net-nds/openldap:= )
+	collectd_plugins_oracle?		( dev-db/oracle-instantclient[sdk] )
+	collectd_plugins_ovs_events?		( dev-libs/yajl:= )
+	collectd_plugins_ovs_stats?		( dev-libs/yajl:= )
+	collectd_plugins_perl?			( dev-lang/perl:=[ithreads] )
+	collectd_plugins_ping?			( net-libs/liboping )
+	collectd_plugins_postgresql?		( dev-db/postgresql:= )
+	collectd_plugins_procevent?		( dev-libs/yajl:= )
+	collectd_plugins_python?		( ${PYTHON_DEPS} )
+	collectd_plugins_redis?			( dev-libs/hiredis:= )
+	collectd_plugins_routeros?		( net-libs/librouteros )
+	collectd_plugins_rrdcached?		( net-analyzer/rrdtool:= )
+	collectd_plugins_rrdtool?		( net-analyzer/rrdtool:= )
+	collectd_plugins_sensors?		( sys-apps/lm-sensors:= )
+	collectd_plugins_sigrok?		( >=sci-libs/libsigrok-0.4:= dev-libs/glib:2 )
+	collectd_plugins_slurm?			( sys-cluster/slurm )
+	collectd_plugins_smart?			( dev-libs/libatasmart:0= )
+	collectd_plugins_snmp?			( net-analyzer/net-snmp:= )
+	collectd_plugins_snmp_agent?		( net-analyzer/net-snmp:= )
+	collectd_plugins_sysevent?		( dev-libs/yajl:= )
+	collectd_plugins_varnish?		( www-servers/varnish:= )
+	collectd_plugins_virt?			( app-emulation/libvirt:= dev-libs/libxml2:2= )
+	collectd_plugins_write_http?		( net-misc/curl:0= dev-libs/yajl:= )
+	collectd_plugins_write_kafka?		( >=dev-libs/librdkafka-0.9.0.99:= dev-libs/yajl:= )
+	collectd_plugins_write_mongodb?		( >=dev-libs/mongo-c-driver-1.8.2:= )
+	collectd_plugins_write_prometheus?	( >=dev-libs/protobuf-c-1.2.1-r1:= net-libs/libmicrohttpd:= )
+	collectd_plugins_write_redis?		( dev-libs/hiredis:= )
+	collectd_plugins_write_stackdriver?	( net-misc/curl:0= dev-libs/yajl:= )
+	collectd_plugins_xencpu?		( app-emulation/xen-tools:= )
+"
+
+# FIXME: should virtual/jdk be here as well?
+BDEPEND="virtual/pkgconfig"
+
+# Enforcing !=sys-kernel/linux-headers-4.5 > due to #577846
+DEPEND="${COMMON_DEPEND}
+	collectd_plugins_iptables?		( || ( <=sys-kernel/linux-headers-4.4 >=sys-kernel/linux-headers-4.6 ) )
+	collectd_plugins_java?			( >=virtual/jdk-1.8 )"
+
+RDEPEND="${COMMON_DEPEND}
+	collectd_plugins_java?			( >=virtual/jre-1.8 )
+	collectd_plugins_syslog?		( virtual/logger )
+	selinux?				( sec-policy/selinux-collectd )"
+
+REQUIRED_USE="
+	collectd_plugins_lua?			( ${LUA_REQUIRED_USE} )
+	collectd_plugins_python?		( ${PYTHON_REQUIRED_USE} )
+	collectd_plugins_smart?			( udev )
+	contrib?				( perl )"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-5.11.0-libsigrok-0.4+.patch
+	"${FILESDIR}"/${PN}-5.12.0-python3_11.patch
+	"${FILESDIR}"/${PN}-5.12.0-clang16-configure.patch
+	"${FILESDIR}"/${PN}-5.12.0-nut-c99.patch
+)
+
+# @FUNCTION: collectd_plugin_kernel_linux
+# @DESCRIPTION:
+# USAGE: <plugin name> <kernel_options> <severity>
+# kernel_options is a list of kernel configurations options; the check tests whether at least
+#   one of them is enabled. If no, depending on the third argument an elog, ewarn, or eerror message
+#   is emitted.
+collectd_plugin_kernel_linux() {
+	local multi_opt opt
+	if has ${1} ${COLLECTD_ALL_PLUGINS}; then
+		if use collectd_plugins_${1}; then
+			for opt in ${2}; do
+				if linux_chkconfig_present ${opt}; then
+					return 0;
+				fi
+			done
+			multi_opt=${2//\ /\ or\ }
+			case ${3} in
+				(info)
+					elog "The ${1} plugin can use kernel features that are disabled now; enable ${multi_opt} in your kernel"
+				;;
+				(warn)
+					ewarn "The ${1} plugin uses kernel features that are disabled now; enable ${multi_opt} in your kernel"
+				;;
+				(error)
+					eerror "The ${1} plugin needs kernel features that are disabled now; enable ${multi_opt} in your kernel"
+				;;
+				(*)
+					die "function collectd_plugin_kernel_linux called with invalid third argument"
+				;;
+			esac
+		fi
+	fi
+}
+
+collectd_linux_kernel_checks() {
+	if ! linux_chkconfig_present PROC_FS; then
+		ewarn "/proc file system support is disabled, many plugins will not be able to read any statistics from your system unless you enable PROC_FS in your kernel"
+	fi
+
+	if ! linux_chkconfig_present SYSFS; then
+		ewarn "/sys file system support is disabled, many plugins will not be able to read any statistics from your system unless you enable SYSFS in your kernel"
+	fi
+
+	# battery.c: /proc/pmu/battery_%i
+	# battery.c: /proc/acpi/battery
+	collectd_plugin_kernel_linux battery ACPI_BATTERY warn
+
+	# cgroups.c: /sys/fs/cgroup/
+	collectd_plugin_kernel_linux cgroups CGROUPS warn
+
+	# cpufreq.c: /sys/devices/system/cpu/cpu%d/cpufreq/
+	collectd_plugin_kernel_linux cpufreq SYSFS warn
+	collectd_plugin_kernel_linux cpufreq CPU_FREQ_STAT warn
+
+	# drbd.c: /proc/drbd
+	collectd_plugin_kernel_linux drbd BLK_DEV_DRBD warn
+
+	# conntrack.c: /proc/sys/net/netfilter/*
+	collectd_plugin_kernel_linux conntrack NETFILTER warn
+
+	# fscache.c: /proc/fs/fscache/stats
+	collectd_plugin_kernel_linux fscache FSCACHE warn
+
+	# nfs.c: /proc/net/rpc/nfs
+	# nfs.c: /proc/net/rpc/nfsd
+	collectd_plugin_kernel_linux nfs NFS_COMMON warn
+
+	# serial.c: /proc/tty/driver/serial
+	# serial.c: /proc/tty/driver/ttyS
+	collectd_plugin_kernel_linux serial SERIAL_CORE warn
+
+	# swap.c: /proc/meminfo
+	collectd_plugin_kernel_linux swap SWAP warn
+
+	# thermal.c: /proc/acpi/thermal_zone
+	# thermal.c: /sys/class/thermal
+	collectd_plugin_kernel_linux thermal ACPI_THERMAL warn
+
+	# turbostat.c: /dev/cpu/%d/msr
+	collectd_plugin_kernel_linux turbostat X86_MSR warn
+
+	# vmem.c: /proc/vmstat
+	collectd_plugin_kernel_linux vmem VM_EVENT_COUNTERS warn
+
+	# vserver.c: /proc/virtual
+	collectd_plugin_kernel_linux vserver VSERVER warn
+
+	# uuid.c: /sys/hypervisor/uuid
+	collectd_plugin_kernel_linux uuid SYSFS info
+
+	# wireless.c: /proc/net/wireless
+	collectd_plugin_kernel_linux wireless "WIRELESS MAC80211 IEEE80211" warn
+
+	# zfs_arc.c: /proc/spl/kstat/zfs/arcstats
+	collectd_plugin_kernel_linux zfs_arc "SPL ZFS" warn
+}
+
+pkg_setup() {
+	if use kernel_linux; then
+		linux-info_pkg_setup
+
+		if linux_config_exists; then
+			einfo "Checking your linux kernel configuration:"
+			collectd_linux_kernel_checks
+		else
+			elog "Cannot find a linux kernel configuration. Continuing anyway."
+		fi
+	fi
+
+	if use collectd_plugins_java; then
+		java-pkg-opt-2_pkg_setup
+	fi
+
+	use collectd_plugins_lua && lua-single_pkg_setup
+	use collectd_plugins_python && python-single-r1_pkg_setup
+}
+
+src_prepare() {
+	default
+
+	# There's some strange prefix handling in the default config file, resulting in
+	# paths like "/usr/var/..."
+	sed -i -e "s:@prefix@/var:/var:g" src/collectd.conf.in || die
+
+	# Adjust upstream's systemd unit
+	#   - Get rid of EnvironmentFile directive; These files don't exist on Gentoo!
+	#   - Add User=collectd to run collectd as user "collectd" per default
+	sed -i \
+		-e '/^EnvironmentFile=.*/d' \
+		-e '/^\[Service\]/aUser=collectd' \
+		contrib/systemd.${PN}.service || die
+
+	eautoreconf
+}
+
+src_configure() {
+	# Now come the lists of os-dependent plugins. Any plugin that is not listed anywhere here
+	# should work independent of the operating system.
+
+	local linux_plugins="barometer battery cpu cpufreq disk
+		drbd entropy ethstat hugepages interface iptables
+		ipvs irq ipc load memory md netlink nfs numa processes
+		serial swap tcpconns thermal turbostat users vmem wireless
+		zfc_arc"
+
+	local need_libstatgrab=0
+	local libstatgrab_plugins="cpu disk interface load memory swap users"
+	local bsd_plugins="cpu tcpconns ${libstatgrab_plugins} zfc_arc"
+
+	local darwin_plugins="apple_sensors battery cpu disk interface memory processes tcpconns"
+
+	local osdependent_plugins="${linux_plugins} ${bsd_plugins} ${darwin_plugins}"
+	local myos_plugins=""
+	if use kernel_linux; then
+		einfo "Enabling Linux plugins."
+		myos_plugins=${linux_plugins}
+	elif use kernel_Darwin; then
+		einfo "Enabling Darwin plugins."
+		myos_plugins=${darwin_plugins}
+	fi
+
+	local myconf="--disable-werror"
+
+	# Do we debug?
+	myconf+=" $(use_enable debug)"
+
+	# udev support?
+	# Required for smart plugin via REQUIRED_USE; Optional for disk plugin
+	if use udev; then
+		myconf+=" --with-libudev"
+	else
+		myconf+=" --without-libudev"
+	fi
+
+	local plugin
+
+	# Disable what needs to be disabled.
+	for plugin in ${COLLECTD_DISABLED_PLUGINS}; do
+		if [[ "${plugin}" == 'dpdkstat' ]]; then
+			myconf+=" --without-libdpdk"
+		else
+			myconf+=" --disable-${plugin}"
+		fi
+	done
+
+	# Set enable/disable for each single plugin.
+	for plugin in ${COLLECTD_ALL_PLUGINS}; do
+		if has ${plugin} ${osdependent_plugins}; then
+			# plugin is os-dependent ...
+			if has ${plugin} ${myos_plugins}; then
+				# ... and available in this os
+				myconf+=" $(use_enable collectd_plugins_${plugin} ${plugin})"
+			else
+				# ... and NOT available in this os
+				if use collectd_plugins_${plugin}; then
+					ewarn "You try to enable the ${plugin} plugin, but it is not available for this"
+					ewarn "kernel. Disabling it automatically."
+				fi
+				myconf+=" --disable-${plugin}"
+			fi
+		elif [[ "${plugin}" = "collectd_plugins_perl" ]]; then
+			if use collectd_plugins_perl && ! use perl; then
+				ewarn "Perl plugin disabled as perl bindings disabled by -perl use flag"
+				myconf+= --disable-perl
+			else
+				myconf+=" $(use_enable collectd_plugins_${plugin} ${plugin})"
+			fi
+		else
+			myconf+=" $(use_enable collectd_plugins_${plugin} ${plugin})"
+		fi
+	done
+
+	if [ "${need_libstatgrab}" -eq 1 ]; then
+		myconf+=" --with-libstatgrab"
+	else
+		myconf+=" --without-libstatgrab"
+	fi
+
+	# JAVA_HOME is set by eclasses.
+	if use collectd_plugins_java; then
+		myconf+=" --with-java"
+	fi
+
+	# Need libiptc ONLY for iptables. If we try to use it otherwise bug 340109 happens.
+	# lots of libs are only needed for plugins, if they are disabled, also disable the lib
+	use collectd_plugins_iptables || myconf+=" --with-libiptc=no"
+	use collectd_plugins_openldap || myconf+=" --with-libldap=no"
+	use collectd_plugins_redis    || use collectd_plugins_write_redis || myconf+=" --with-libhiredis=no"
+	use collectd_plugins_smart    || myconf+=" --with-libatasmart=no"
+	use collectd_plugins_gps      || myconf+=" --with-libgps=no"
+
+	if use collectd_plugins_gpu_nvidia; then
+		myconf+=" --with-cuda=${EPREFIX}/opt/cuda"
+	else
+		myconf+=" --with-cuda=no"
+	fi
+
+	if use perl; then
+		myconf+=" --with-perl-bindings=INSTALLDIRS=vendor"
+	else
+		myconf+=" --without-perl-bindings"
+	fi
+
+	# No need for v5upgrade
+	myconf+=" --disable-target_v5upgrade"
+
+	# Python
+	if use collectd_plugins_python; then
+		myconf+=" --with-libpython=yes"
+		export PYTHON_CONFIG=$(python_get_PYTHON_CONFIG)
+	else
+		myconf+=" --with-libpython=no"
+	fi
+
+	# XFS support
+	myconf+=" $(use_enable xfs)"
+
+	# Finally, run econf.
+	KERNEL_DIR="${KERNEL_DIR}" econf --config-cache \
+		$(use_enable static-libs static) \
+		--localstatedir=/var ${myconf}
+}
+
+src_install() {
+	emake DESTDIR="${D}" install
+
+	perl_delete_localpod
+
+	find "${ED}"/usr/ -name "*.la" -delete || die
+
+	if use collectd_plugins_java; then
+		java-pkg_regjar "${ED}"/usr/share/${PN}/java/*.jar
+	fi
+
+	if use collectd_plugins_disk && use udev; then
+		udev_newrules contrib/99-storage-collectd.rules 60-persistent-storage-collectd.rules
+	fi
+
+	fowners root:collectd /etc/collectd.conf
+	fperms u=rw,g=r,o= /etc/collectd.conf
+
+	einstalldocs
+
+	if use contrib; then
+		insinto /usr/share/${PN}
+		doins -r contrib
+	fi
+
+	keepdir /var/lib/${PN}
+	fowners collectd:collectd /var/lib/${PN}
+
+	newinitd "${FILESDIR}/${PN}.initd-r3" ${PN}
+	newconfd "${FILESDIR}/${PN}.confd-r2" ${PN}
+	systemd_newunit "contrib/systemd.${PN}.service" ${PN}.service
+
+	insinto /etc/logrotate.d
+	newins "${FILESDIR}/${PN}.logrotate" ${PN}
+
+	newtmpfiles "${FILESDIR}"/${PN}.tmpfile ${PN}.conf
+
+	sed \
+		-e 's:^.*PIDFile     "/var/run/collectd.pid":#PIDFile     "/run/collectd.pid":' \
+		-i "${ED}"/etc/collectd.conf || die
+	sed \
+		-e 's:^#	SocketFile "/var/run/collectd-unixsock":#	SocketFile "/run/collectd/collectd.socket":' \
+		-i "${ED}"/etc/collectd.conf || die
+	sed \
+		-e 's:^.*LoadPlugin perl$:# The new, correct way to load the perl plugin -- \n# <LoadPlugin perl>\n#   Globals true\n# </LoadPlugin>:' \
+		-i "${ED}"/etc/collectd.conf || die
+	sed \
+		-e 's:^.*LoadPlugin python$:# The new, correct way to load the python plugin -- \n# <LoadPlugin python>\n#   Globals true\n# </LoadPlugin>:' \
+		-i "${ED}"/etc/collectd.conf || die
+}
+
+pkg_postinst() {
+	tmpfiles_process "${PN}.conf"
+
+	if use filecaps; then
+		local caps=()
+		use collectd_plugins_ceph      && caps+=('CAP_DAC_OVERRIDE')
+		use collectd_plugins_exec      && caps+=('CAP_SETUID' 'CAP_SETGID')
+		use collectd_plugins_iptables  && caps+=('CAP_NET_ADMIN')
+		use collectd_plugins_filecount && caps+=('CAP_DAC_READ_SEARCH')
+
+		if use collectd_plugins_dns || use collectd_plugins_ping; then
+			caps+=('CAP_NET_RAW')
+		fi
+
+		if use collectd_plugins_turbostat || use collectd_plugins_smart; then
+			caps+=('CAP_SYS_RAWIO')
+		fi
+
+		if [ ${#caps[@]} -gt 0 ]; then
+			local caps_str=$(IFS=","; echo "${caps[*]}")
+			fcaps ${caps_str} usr/sbin/collectd
+			elog "Capabilities for ${EROOT}/usr/sbin/collectd set to:"
+			elog "  ${caps_str}+EP"
+			elog
+
+			local systemd_unit="$(systemd_get_systemunitdir)/collectd.service"
+			if [[ -e "${systemd_unit}" ]]; then
+				caps_str="${caps[*]}"
+				sed -i -e "s:^CapabilityBoundingSet=.*:CapabilityBoundingSet=${caps_str}:" "${systemd_unit}" || \
+					die "Failed to set CapabilityBoundingSet in '${systemd_unit}'"
+
+				elog "CapabilityBoundingSet in '${systemd_unit}'"
+				elog "updated to match capabilities set above."
+				elog
+			else
+				if has_version "sys-apps/systemd"; then
+					# Bug 596852
+					ewarn "Failed to update CapabilityBoundingSet in '${systemd_unit}'"
+					ewarn "because unit was not found. Please file a bug about this."
+				fi
+			fi
+		fi
+	fi
+
+	elog "Note: Collectd is only the collector."
+	elog "      You need to install 'data' sources (applications) locally or"
+	elog "      remotely on your own."
+
+	elog
+	elog "Collectd is configured to run as unprivileged user by default."
+	elog "You may want to revisit the configuration."
+	elog
+
+	if use collectd_plugins_email; then
+		ewarn "The email plug-in is deprecated. To submit statistics please use the unixsock plugin."
+	fi
+
+	if use collectd_plugins_smart; then
+		elog ""
+		elog "If you are using smart plugin and don't run collectd as root make sure"
+		elog "that the collectd user is allowed to access the disk you want to monitor"
+		elog "(can be done via udev rule for example) and that collectd has the required"
+		elog "capabilities set (which is the default when package was emerged with"
+		elog "'filecaps' USE flag set)."
+	fi
+
+	if use contrib; then
+		elog "The scripts in /usr/share/doc/${PF}/collection3 for generating graphs need dev-perl/HTML-Parser,"
+		elog "dev-perl/CGI, dev-perl/Config-General and net-analyzer/rrdtool[perl] to be installed."
+	fi
+}
diff --git a/app-metrics/collectd/files/collectd-5.12.0-nut-c99.patch b/app-metrics/collectd/files/collectd-5.12.0-nut-c99.patch
new file mode 100644
index 000000000000..0935eed070e9
--- /dev/null
+++ b/app-metrics/collectd/files/collectd-5.12.0-nut-c99.patch
@@ -0,0 +1,143 @@
+https://github.com/collectd/collectd/commit/d409ffa2a64cac3fc2abe2bb86ec3a80cb34d0a6
+
+From d409ffa2a64cac3fc2abe2bb86ec3a80cb34d0a6 Mon Sep 17 00:00:00 2001
+From: Jim Klimov <jimklimov+nut@gmail.com>
+Date: Wed, 31 Aug 2022 11:40:01 +0200
+Subject: [PATCH] configure.ac, src/nut.c: detect int types required by NUT API
+ we build against
+
+Either use the stricter int types required by NUT headers since v2.8.0 release,
+or the relaxed (arch-dependent) types required by older NUT releases - depending
+on which NUT API version the collectd is building against at the moment.
+
+Inspired by discussion at https://github.com/networkupstools/nut/issues/1638
+--- a/configure.ac
++++ b/configure.ac
+@@ -5881,6 +5881,106 @@ if test "x$with_libupsclient" = "xyes"; then
+   CPPFLAGS="$SAVE_CPPFLAGS"
+ fi
+ 
++if test "x$with_libupsclient" = "xyes"; then
++  dnl The m4 script logic below is modelled after NUT_FUNC_GETNAMEINFO_ARGTYPES
++  dnl further originating in curl autoconf scripts or beyond. See there for an
++  dnl example of general-case logic to handle matching of numerous possible
++  dnl data types for each argument in supported API variants.
++  dnl Note: techically compiler complains here not about int types themselves,
++  dnl but about pointers to such data. We know "out of band" that e.g. NUT
++  dnl change to "size_t" happened at once for all arguments in the API, so
++  dnl simplify the handling here and now with that assumption.
++  AC_LANG_PUSH([C])
++  SAVE_CPPFLAGS="$CPPFLAGS"
++  SAVE_LDFLAGS="$LDFLAGS"
++  SAVE_CFLAGS="$CFLAGS"
++  CPPFLAGS="$CPPFLAGS $with_libupsclient_cflags"
++  LDFLAGS="$LDFLAGS $with_libupsclient_libs"
++  CFLAGS="$CFLAGS $with_libupsclient_cflags"
++  if test "x$GCC" = "xyes"; then
++    CFLAGS="$CFLAGS -Wall -Werror"
++  fi
++
++  dnl upscli_splitname() *is* there forever (2007 or older)
++  dnl but int types e.g. "port" changed in NUT 2.8.0
++  dnl Also this is the UPSCONN_t::port field type:
++  AC_CACHE_CHECK([int type of port argument for NUT upscli_splitname],
++    [collectd_cv_func_upscli_splitname_args], [
++     collectd_cv_func_upscli_splitname_args="unknown"
++     for port_arg in 'uint16_t' 'int' ; do
++        AC_COMPILE_IFELSE([
++            AC_LANG_PROGRAM([
++#include <upsclient.h>
++/* int upscli_splitname(const char *buf, char **upsname, char **hostname, <port_arg> *port); */
++            ],[
++const char *origname = "ups@localhost:3493";
++$port_arg port=0;
++char *hostname;
++char *upsname;
++int res = upscli_splitname(origname, &upsname, &hostname, &port);
++return(res);
++            ])
++        ],[
++            collectd_cv_func_upscli_splitname_args="$port_arg"
++            break
++        ])
++     done
++    ])
++
++  AS_IF([test x"$collectd_cv_func_upscli_splitname_args" = xunknown],
++    [AC_MSG_WARN([Can not find proper port type for upscli_splitname()])
++     with_libupsclient="no (required data types for NUT API were not detected)"],
++    [AC_DEFINE_UNQUOTED(NUT_PORT_TYPE, $collectd_cv_func_upscli_splitname_args,
++        [Define to the integer type for TCP/IP ports used by NUT API we build against])
++    ])
++
++
++  AC_CACHE_CHECK([int type of length/numbering arguments for NUT upscli_list_next],
++    [collectd_cv_func_upscli_list_next_args], [
++     collectd_cv_func_upscli_list_next_args="unknown"
++     for size_arg in 'size_t' 'unsigned int' 'int' ; do
++        AC_COMPILE_IFELSE([
++            AC_LANG_PROGRAM([
++#include <upsclient.h>
++/* int upscli_list_next(UPSCONN_t *ups, <size_arg> numq, const char **query, <size_arg> *numa, char ***answer); */
++
++#if HAVE_UPSCONN_T
++typedef UPSCONN_t collectd_upsconn_t;
++#elif HAVE_UPSCONN
++typedef UPSCONN collectd_upsconn_t;
++#else
++#error "Unable to determine the UPS connection type."
++#endif
++            ],[
++$size_arg query_num=0;
++$size_arg answer_num=0;
++const char * query;
++char** answer;
++collectd_upsconn_t ups;
++int res = upscli_list_next(&ups, query_num, &query, &answer_num, &answer);
++return(res);
++            ])
++        ],[
++            collectd_cv_func_upscli_list_next_args="$size_arg"
++            break
++        ])
++     done
++    ])
++
++  AS_IF([test x"$collectd_cv_func_upscli_list_next_args" = xunknown],
++    [AC_MSG_WARN([Can not find proper type for array sizes and string lengths used by upscli_list_next()])
++     with_libupsclient="no (required data types for NUT API were not detected)"],
++    [AC_DEFINE_UNQUOTED(NUT_SIZE_TYPE, $collectd_cv_func_upscli_list_next_args,
++        [Define to the integer type for array sizes and string lengths used by NUT API we build against])
++    ])
++
++
++  CPPFLAGS="$SAVE_CPPFLAGS"
++  LDFLAGS="$SAVE_LDFLAGS"
++  CFLAGS="$SAVE_CFLAGS"
++  AC_LANG_POP([C])
++fi
++
+ if test "x$with_libupsclient" = "xyes"; then
+   BUILD_WITH_LIBUPSCLIENT_CFLAGS="$with_libupsclient_cflags"
+   BUILD_WITH_LIBUPSCLIENT_LIBS="$with_libupsclient_libs"
+--- a/src/nut.c
++++ b/src/nut.c
+@@ -46,7 +46,7 @@ struct nut_ups_s {
+   collectd_upsconn_t *conn;
+   char *upsname;
+   char *hostname;
+-  int port;
++  NUT_PORT_TYPE port;
+   nut_ups_t *next;
+ };
+ 
+@@ -250,7 +250,7 @@ static int nut_read(user_data_t *user_data) {
+   const char *query[3] = {"VAR", ups->upsname, NULL};
+   unsigned int query_num = 2;
+   char **answer;
+-  unsigned int answer_num;
++  NUT_SIZE_TYPE answer_num;
+   int status;
+ 
+   /* (Re-)Connect if we have no connection */
+