dev-cpp/cpp-hocon: fix build with glibc-2.34, conditionally build tests

Closes: https://bugs.gentoo.org/823419
Signed-off-by: Sam James <sam@gentoo.org>

dev-cpp/cpp-hocon/cpp-hocon-0.3.0-r1.ebuild

@@ -0,0 +1,40 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit cmake prefix
+
+DESCRIPTION="Provides C++ support for the HOCON configuration file format"
+HOMEPAGE="https://github.com/puppetlabs/cpp-hocon"
+SRC_URI="https://github.com/puppetlabs/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0/${PV}"
+KEYWORDS="~amd64 ~arm ~ppc64 ~x86"
+IUSE="debug test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	>=dev-libs/boost-1.54:=[nls]
+	>=dev-libs/leatherman-0.9.3:=
+"
+DEPEND="${DEPEND}
+	test? ( dev-cpp/catch:1 )"
+
+#PATCHES=( "${FILESDIR}"/${PN}-0.2.1-cmake.patch )
+PATCHES=( "${FILESDIR}"/${PN}-0.3.0-use-system-catch.patch )
+
+src_prepare() {
+	cmake_src_prepare
+
+	eprefixify lib/tests/CMakeLists.txt
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_TESTING=$(usex test)
+	)
+
+	cmake_src_configure
+}