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# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit toolchain-funcs flag-o-matic multilib
SOVER=$(ver_cut 1)
DESCRIPTION="Software for graph, mesh and hypergraph partitioning"
HOMEPAGE="https://www.labri.u-bordeaux.fr/perso/pelegrin/scotch/ https://gitlab.inria.fr/scotch/scotch"
SRC_URI="https://gitlab.inria.fr/${PN}/${PN}/-/archive/v${PV}/${PN}-v${PV}.tar.gz"
S="${WORKDIR}/${PN}-v${PV}"
LICENSE="CeCILL-2"
SLOT="0/${SOVER}"
KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~ppc ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~x86-linux"
IUSE="doc int64 mpi static-libs test tools +threads"
# bug #532620
REQUIRED_USE="test? ( threads )"
RESTRICT="!test? ( test )"
DEPEND="
sys-libs/zlib
mpi? ( virtual/mpi )"
RDEPEND="${DEPEND}"
static_to_shared() {
local libstatic=${1}; shift
local libname=$(basename ${libstatic%.a})
local soname=${libname}$(get_libname ${SOVER})
local libdir=$(dirname ${libstatic})
einfo "Making ${soname} from ${libstatic}"
if [[ ${CHOST} == *-darwin* ]] ; then
${LINK:-$(tc-getCC)} ${LDFLAGS} \
-dynamiclib -install_name "${EPREFIX}"/usr/lib/"${soname}" \
-Wl,-all_load -Wl,${libstatic} \
"$@" -o ${libdir}/${soname} || die "${soname} failed"
else
${LINK:-$(tc-getCC)} ${LDFLAGS} \
-shared -Wl,-soname=${soname} \
-Wl,--whole-archive ${libstatic} -Wl,--no-whole-archive \
"$@" -o ${libdir}/${soname} || die "${soname} failed"
VERS_COMP=${PV//.}
[[ "${#VERS_COMP}" -gt 1 ]] && \
ln -s ${soname} ${libdir}/${libname}$(get_libname ${SOVER})
ln -s ${soname} ${libdir}/${libname}$(get_libname)
fi
}
src_prepare() {
default
use int64 && append-cflags -DIDXSIZE64
if use threads; then
append-cflags "-DSCOTCH_PTHREAD_NUMBER=$(nproc)"
else
append-cflags "-DSCOTCH_PTHREAD_NUMBER=1"
sed -i \
-e 's/ -DSCOTCH_PTHREAD//' \
src/Make.inc/Makefile.inc.i686_pc_linux3 || die
fi
# Be careful with replacing here, bug #577272
sed -e "s/= gcc$/= $(tc-getCC)/" \
-e "s/-O3/${CFLAGS} -pthread/" \
-e "s/= ar$/= $(tc-getAR)/" \
-e "s/= ranlib$/= $(tc-getRANLIB)/" \
-e "s/= ranlib$/= $(tc-getRANLIB)/" \
-e "/^LDFLAGS/ s/$/ ${LDFLAGS}/" \
src/Make.inc/Makefile.inc.i686_pc_linux3 > src/Makefile.inc || die
}
src_compile() {
emake -C src CLIBFLAGS=-fPIC scotch esmumps
static_to_shared lib/libscotcherr.a
static_to_shared lib/libscotcherrexit.a
static_to_shared lib/libscotch.a -Llib -lz -lm -lrt -lpthread -lscotcherr
static_to_shared lib/libesmumps.a -Llib -lscotch
static_to_shared lib/libscotchmetis.a -Llib -lscotch
if use mpi; then
emake -C src CLIBFLAGS=-fPIC ptscotch ptesmumps
export LINK=mpicc
static_to_shared lib/libptscotcherr.a
static_to_shared lib/libptscotcherrexit.a
static_to_shared lib/libptscotch.a -Llib -lscotch -lptscotcherr -lz -lm -lrt
static_to_shared lib/libptesmumps.a -Llib -lscotch -lptscotch
static_to_shared lib/libptscotchparmetis.a -Llib -lscotch -lptscotch
fi
if use static-libs; then
emake -C src clean
emake -C src
use mpi && emake -C src ptscotch
fi
}
src_test() {
tc-export FC
LD_LIBRARY_PATH="${S}/lib" emake -C src check
}
src_install() {
dolib.so lib/lib*$(get_libname)*
use static-libs && dolib.a lib/*.a
#install metis headers into a subdir
#to allow usage of real metis and scotch
#in the same code
insinto /usr/include/scotch/metis
doins include/*metis*
rm include/*metis*
insinto /usr/include/scotch
doins include/*
cat <<-EOF > scotchmetis.pc
prefix=${EPREFIX}/usr
libdir=\${prefix}/$(get_libdir)
includedir=\${prefix}/include
Name: scotchmetis
Description: ${DESCRIPTION}
Version: ${PV}
URL: ${HOMEPAGE}
Libs: -L\${libdir} -lscotchmetis -lscotcherr -lscotch
Private: -lm -lz -lrt
Cflags: -I\${includedir}/scotch/metis
EOF
insinto /usr/$(get_libdir)/pkgconfig
doins scotchmetis.pc
# not sure it is actually a full replacement of metis
#alternatives_for metis scotch 0 \
# /usr/$(get_libdir)/pkgconfig/metis.pc scotchmetis.pc
if use mpi; then
cat <<-EOF > ptscotchparmetis.pc
prefix=${EPREFIX}/usr
libdir=\${prefix}/$(get_libdir)
includedir=\${prefix}/include
Name: ptscotchparmetis
Description: ${DESCRIPTION}
Version: ${PV}
URL: ${HOMEPAGE}
Libs: -L\${libdir} -lptscotchparmetis -lptscotcherr -lptscotch
Private: -lm -lz -lrt
Cflags: -I\${includedir}/scotch/metis
Requires: scotchmetis
EOF
insinto /usr/$(get_libdir)/pkgconfig
doins ptscotchparmetis.pc
# not sure it is actually a full replacement of parmetis
#alternatives_for metis-mpi ptscotch 0 \
# /usr/$(get_libdir)/pkgconfig/metis-mpi.pc ptscotchparmetis.pc
fi
dodoc README.txt
if use tools; then
local b m
pushd bin > /dev/null || die
for b in *; do
newbin ${b} scotch_${b}
done
popd > /dev/null || die
pushd man/man1 > /dev/null || die
for m in *.1; do
newman ${m} scotch_${m}
done
popd > /dev/null || die
fi
use doc && dodoc doc/*.pdf
}
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