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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit cmake
DESCRIPTION="A package for unstructured serial graph partitioning"
HOMEPAGE="http://glaros.dtc.umn.edu/gkhome/metis/metis/overview"
SRC_URI="http://glaros.dtc.umn.edu/gkhome/fetch/sw/${PN}/${P}.tar.gz"
LICENSE="Apache-2.0"
SLOT="0"
KEYWORDS="amd64 arm arm64 ~hppa ~ia64 ppc ppc64 ~riscv sparc x86 ~amd64-linux ~x86-linux"
IUSE="doc double-precision examples int64 openmp"
RDEPEND="!<sci-libs/parmetis-4.0.3-r2"
PATCHES=(
"${FILESDIR}"/${P}-shared-GKlib.patch
"${FILESDIR}"/${P}-multilib.patch
"${FILESDIR}"/${P}-remove-GKlib-O3.patch
)
src_prepare() {
if use int64; then
sed -i -e '/^#define IDXTYPEWIDTH/s/32/64/' include/metis.h || die
fi
if use double-precision; then
sed -i -e '/^#define REALTYPEWIDTH/s/32/64/' include/metis.h || die
fi
cmake_src_prepare
}
src_configure() {
local mycmakeargs=(
-DGKLIB_PATH="${S}"/GKlib
-DSHARED=yes
-DOPENMP=$(usex openmp)
)
cmake_src_configure
}
src_test() {
cd graphs || die
local PATH="${BUILD_DIR}"/programs/:${PATH}
ndmetis mdual.graph || die
mpmetis metis.mesh 2 || die
gpmetis test.mgraph 4 || die
gpmetis copter2.graph 4 || die
graphchk 4elt.graph || die
}
src_install() {
cmake_src_install
use doc && dodoc manual/manual.pdf
if use examples; then
docinto examples
dodoc -r programs graphs
fi
cat >> "${T}"/metis.pc <<- EOF || die
prefix=${EPREFIX}/usr
exec_prefix=\${prefix}
libdir=\${exec_prefix}/$(get_libdir)
includedir=\${prefix}/include
Name: METIS
Description: Software for partioning unstructured graphes and meshes
Version: ${PV}
Cflags: -I\${includedir}/metis
Libs: -L\${libdir} -lmetis
EOF
insinto /usr/$(get_libdir)/pkgconfig
doins "${T}"/metis.pc
}
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