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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit cmake

DESCRIPTION="Numerical linear algebra software package"
HOMEPAGE="https://ginkgo-project.github.io/"

if [[ ${PV} = *9999* ]]; then
	EGIT_REPO_URI="https://github.com/ginkgo-project/ginkgo"
	inherit git-r3
else
	SRC_URI="https://github.com/${PN}-project/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
	KEYWORDS="~amd64 ~x86"
fi

LICENSE="BSD-with-attribution"
SLOT="0"
IUSE="+openmp cuda"

RDEPEND="
	cuda? ( dev-util/nvidia-cuda-sdk )
"
DEPEND="${RDEPEND}"

pkg_setup() {
	if [[ ${MERGE_TYPE} != binary ]] && \
		use openmp && ! tc-has-openmp ; then
			die "Need an OpenMP capable compiler"
	fi
}

src_prepare() {
	sed -i \
		-e "s#\"lib\"#\"$(get_libdir)\"#g" \
		-e "s#\"lib/#\"$(get_libdir)/#g" \
		cmake/install_helpers.cmake || die "sed failed"

	cmake_src_prepare
}

src_configure() {

	local mycmakeargs=(
		-DGINKGO_DEVEL_TOOLS=OFF
		-DGINKGO_BUILD_TESTS=OFF
		-DGINKGO_BUILD_BENCHMARKS=OFF
		-DGINKGO_BUILD_REFERENCE=ON
		-DGINKGO_BUILD_OMP=$(usex openmp)
		-DGINKGO_BUILD_CUDA=$(usex cuda)
	)
	cmake_src_configure
}