net-analyzer/nagios-plugins: new revision with -fno-strict-aliasing.

The code for the check_ntp plugin violates the strict aliasing rules of
C, even though -fstrict-aliasing is enabled with -O2. First impression:
it won't be easy to fix. So to prevent surprises, we append
-fno-strict-aliasing to CFLAGS when it is supported.

Closes: https://bugs.gentoo.org/861200
Signed-off-by: Michael Orlitzky <mjo@gentoo.org>

net-analyzer/nagios-plugins/nagios-plugins-2.4.0-r1.ebuild

@@ -0,0 +1,120 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit flag-o-matic
+
+DESCRIPTION="Official plugins for Nagios"
+HOMEPAGE="https://nagios-plugins.org/"
+SRC_URI="https://github.com/${PN}/${PN}/releases/download/release-${PV}/${P}.tar.gz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ppc ~ppc64 ~sparc ~x86"
+IUSE="ipv6 ldap mysql nagios-dns nagios-ping nagios-game postgres radius samba selinux snmp ssh +ssl"
+
+# Most of the plugins use automagic dependencies, i.e. the plugin will
+# get built if the binary it uses is installed. For example, check_snmp
+# will be built only if snmpget from net-analyzer/net-snmp[-minimal] is
+# installed. End result: most of our runtime dependencies are required
+# at build time as well.
+AUTOMAGIC_DEPEND="
+	nagios-dns? ( net-dns/bind-tools )
+	nagios-game? ( games-util/qstat )
+	nagios-ping? ( net-analyzer/fping )
+	samba? ( net-fs/samba )
+	ssh? ( net-misc/openssh )
+	snmp? ( dev-perl/Net-SNMP
+			net-analyzer/net-snmp[-minimal] )"
+
+# Perl really needs to run during the build...
+BDEPEND="${AUTOMAGIC_DEPEND}
+	dev-lang/perl"
+
+DEPEND="
+	ldap? ( net-nds/openldap:= )
+	mysql? ( dev-db/mysql-connector-c:= )
+	postgres? ( dev-db/postgresql:* )
+	ssl? (
+		dev-libs/openssl:0=
+	)
+	radius? ( net-dialup/freeradius-client )"
+
+# Basically everything in net-analyzer/monitoring-plugins collides with
+# nagios-plugins. Perl (from BDEPEND) is needed at runtime, too.
+RDEPEND="${BDEPEND}
+	${DEPEND}
+	!net-analyzer/monitoring-plugins
+	selinux? ( sec-policy/selinux-nagios )"
+
+# At least one test is interactive.
+RESTRICT="test"
+
+DOCS=(
+	ACKNOWLEDGEMENTS
+	AUTHORS
+	CODING
+	ChangeLog
+	FAQ
+	NEWS
+	README
+	REQUIREMENTS
+	SUPPORT
+	THANKS
+)
+
+PATCHES=(
+	"${FILESDIR}/define-own-mysql-port-constant.patch"
+)
+
+src_prepare() {
+	default
+
+	# Fix the path to our perl interpreter
+	sed -i -e "1s:/usr/local/bin/perl:/usr/bin/perl:" \
+		"${S}"/plugins-scripts/*.pl \
+		|| die 'failed to fix perl interpreter path'
+}
+
+src_configure() {
+	# Disable -fstrict-aliasing until check_ntp can be fixed,
+	# https://github.com/nagios-plugins/nagios-plugins/issues/665
+	append-cflags $(test-flags-CC -fno-strict-aliasing)
+
+	# Use an array to prevent econf from mangling the ping args.
+	local myconf=()
+
+	if use ssl; then
+		myconf+=( $(use_with ssl openssl /usr) )
+	else
+		myconf+=( --without-openssl )
+		myconf+=( --without-gnutls )
+	fi
+
+	# The autodetection for these two commands can hang if localhost is
+	# down or ICMP traffic is filtered. Bug #468296.
+	myconf+=( --with-ping-command="/bin/ping -n -U -w %d -c %d %s" )
+
+	if use ipv6; then
+		myconf+=( --with-ping6-command="/bin/ping6 -n -U -w %d -c %d %s" )
+	fi
+
+	econf \
+		$(use_with mysql) \
+		$(use_with ipv6) \
+		$(use_with ldap) \
+		$(use_with postgres pgsql /usr) \
+		$(use_with radius) \
+		"${myconf[@]}" \
+		--libexecdir="/usr/$(get_libdir)/nagios/plugins" \
+		--sysconfdir="/etc/nagios"
+}
+
+pkg_postinst() {
+	elog "This ebuild has a number of USE flags that determine what you"
+	elog "are able to monitor. Depending on what you want to monitor, some"
+	elog "or all of these USE flags need to be set."
+	elog
+	elog "The plugins are installed in ${ROOT}/usr/$(get_libdir)/nagios/plugins"
+}