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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=6
# Check metis version bundled in parmetis tar ball
# by diff of metis and parmetis tar ball
METISPV=5.1.0
METISP=metis-${METISPV}
inherit cmake-utils toolchain-funcs
DESCRIPTION="Parallel (MPI) unstructured graph partitioning library"
HOMEPAGE="http://www-users.cs.umn.edu/~karypis/metis/parmetis/"
SRC_URI="
http://glaros.dtc.umn.edu/gkhome/fetch/sw/${PN}/${P}.tar.gz
doc? ( http://glaros.dtc.umn.edu/gkhome/fetch/sw/metis/${METISP}.tar.gz )
examples? ( http://glaros.dtc.umn.edu/gkhome/fetch/sw/metis/${METISP}.tar.gz )"
LICENSE="all-rights-reserved"
SLOT="0"
KEYWORDS="amd64 arm64 x86 ~amd64-linux ~x86-linux"
IUSE="doc double-precision examples int64 mpi openmp pcre static-libs"
RESTRICT="mirror bindist"
DEPEND="mpi? ( virtual/mpi )"
RDEPEND="${DEPEND}
!<sci-libs/metis-5"
pkg_setup() {
if use openmp; then
if [[ $(tc-getCC)$ == *gcc* ]] && ! tc-has-openmp; then
ewarn "You are using gcc but openmp is not available"
die "Need an OpenMP capable compiler"
fi
fi
}
src_prepare() {
cmake-utils_src_prepare
# libdir love
sed -i \
-e '/DESTINATION/s/lib/lib${LIB_SUFFIX}/g' \
libparmetis/CMakeLists.txt metis/libmetis/CMakeLists.txt || die
# set metis as separate shared lib
sed -i \
-e 's/METIS_LIB/ParMETIS_LIB/g' \
metis/libmetis/CMakeLists.txt || die
sed -i \
-e '/programs/d' \
CMakeLists.txt metis/CMakeLists.txt || die
if use static-libs; then
mkdir "${WORKDIR}/${PN}_static" || die
fi
if use mpi; then
export CC=mpicc CXX=mpicxx
else
sed -i \
-e '/add_subdirectory(include/d' \
-e '/add_subdirectory(libparmetis/d' \
CMakeLists.txt || die
fi
if use int64; then
sed -i -e '/IDXTYPEWIDTH/s/32/64/' metis/include/metis.h || die
fi
if use double-precision; then
sed -i -e '/REALTYPEWIDTH/s/32/64/' metis/include/metis.h || die
fi
}
src_configure() {
parmetis_configure() {
local mycmakeargs=(
-DGKLIB_PATH="${S}/metis/GKlib"
-DMETIS_PATH="${S}/metis"
-DGKRAND=ON
-DMETIS_INSTALL=ON
-DOPENMP=$(usex openmp)
-DPCRE=$(usex pcre)
$@
)
cmake-utils_src_configure
}
parmetis_configure -DSHARED=ON
if use static-libs; then
sed -i -e '/fPIC/d' metis/GKlib/GKlibSystem.cmake || die
BUILD_DIR="${WORKDIR}/${PN}_static" parmetis_configure
fi
}
src_compile() {
cmake-utils_src_compile
use static-libs && \
BUILD_DIR="${WORKDIR}/${PN}_static" cmake-utils_src_compile
}
src_install() {
cmake-utils_src_install
use static-libs && \
BUILD_DIR="${WORKDIR}/${PN}_static" cmake-utils_src_install
insinto /usr/include
doins metis/include/metis.h
newdoc metis/Changelog Changelog.metis}
use doc && dodoc "${WORKDIR}/${METISP}"/manual/manual.pdf
if use examples; then
insinto /usr/share/doc/${PF}/examples/metis
doins "${WORKDIR}/${METISP}"/{programs,graphs}/*
fi
# alternative stuff
cat > metis.pc <<-EOF
prefix=${EPREFIX}/usr
libdir=\${prefix}/$(get_libdir)
includedir=\${prefix}/include
Name: metis
Description: Unstructured graph partitioning library
Version: ${METISPV}
URL: ${HOMEPAGE/parmetis/metis}
Libs: -L\${libdir} -lmetis
Cflags: -I\${includedir}/metis
EOF
insinto /usr/$(get_libdir)/pkgconfig
doins metis.pc
# change if scotch is actually an alternative to metis
#alternatives_for metis metis 0 \
# /usr/$(get_libdir)/pkgconfig/metis.pc refmetis.pc
if use mpi; then
dodoc Changelog
use doc && dodoc manual/manual.pdf
if use examples; then
insinto /usr/share/doc/${PF}/examples/${PN}
doins {programs,Graphs}/*
fi
# alternative stuff
cat > ${PN}.pc <<-EOF
prefix=${EPREFIX}/usr
libdir=\${prefix}/$(get_libdir)
includedir=\${prefix}/include
Name: ${PN}
Description: ${DESCRIPTION}
Version: ${PV}
URL: ${HOMEPAGE}
Libs: -L\${libdir} -l${PN}
Cflags: -I\${includedir}/${PN}
Requires: metis
EOF
insinto /usr/$(get_libdir)/pkgconfig
doins ${PN}.pc
# change if scotch is actually an alternative to parmetis
#alternatives_for metis-mpi ${PN} 0 \
# /usr/$(get_libdir)/pkgconfig/metis-mpi.pc ${PN}.pc
fi
}
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