Adding curaengine and companion libs

dev-libs/libarcus/libarcus-3.6.0.ebuild

@@ -0,0 +1,42 @@
+# Copyright 1999-2018 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+PYTHON_COMPAT=( python3_{5,6} )
+
+inherit cmake-utils python-single-r1
+
+MY_PN="libArcus"
+
+DESCRIPTION="This library facilitates communication between Cura and its backend"
+HOMEPAGE="https://github.com/Ultimaker/libArcus"
+SRC_URI="https://github.com/Ultimaker/${MY_PN}/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="LGPL-3"
+SLOT="0/3"
+KEYWORDS="~amd64 ~x86"
+IUSE="examples python static-libs"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+RDEPEND="${PYTHON_DEPS}
+	dev-python/sip[${PYTHON_USEDEP}]
+	dev-libs/protobuf
+	python? ( dev-python/protobuf-python[${PYTHON_USEDEP}] )"
+DEPEND="${RDEPEND}"
+
+S="${WORKDIR}/${MY_PN}-${PV}"
+
+pkg_setup() {
+	use python && python-single-r1_pkg_setup
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_PYTHON=$(usex python ON OFF)
+		-DBUILD_EXAMPLES=$(usex examples ON OFF)
+		-DBUILD_STATIC=$(usex static-libs ON OFF)
+	)
+	use python && mycmakeargs+=( -DPYTHON_SITE_PACKAGES_DIR="$(python_get_sitedir)" )
+	cmake-utils_src_configure
+}