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# Copyright 2019-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit eutils
DESCRIPTION="Intel Math Kernel Library (Runtime)"
HOMEPAGE="https://software.intel.com/en-us/mkl"
SRC_URI="https://repo.continuum.io/pkgs/main/linux-64/mkl-2019.4-243.tar.bz2 -> ${P}.tar.bz2"
LICENSE="ISSL" # https://software.intel.com/en-us/mkl/license-faq
SLOT="0"
KEYWORDS="~amd64"
IUSE="eselect-ldso"
# MKL uses Intel/LLVM OpenMP by default.
# One can change the threadding layer to "gnu" or "tbb" through the MKL_THREADING_LAYER env var.
RDEPEND="
eselect-ldso? ( !app-eselect/eselect-cblas
>=app-eselect/eselect-blas-0.2 )
sys-libs/libomp"
DEPEND=""
S=${WORKDIR}
src_install() {
insinto /usr/$(get_libdir)/
doins lib/*.so
if use eselect-ldso; then
dodir /usr/$(get_libdir)/blas/mkl-rt
dosym ../../libmkl_rt.so usr/$(get_libdir)/blas/mkl-rt/libblas.so
dosym ../../libmkl_rt.so usr/$(get_libdir)/blas/mkl-rt/libblas.so.3
dosym ../../libmkl_rt.so usr/$(get_libdir)/blas/mkl-rt/libcblas.so
dosym ../../libmkl_rt.so usr/$(get_libdir)/blas/mkl-rt/libcblas.so.3
dosym ../../libomp.so usr/$(get_libdir)/blas/mkl-rt/libiomp5.so
dodir /usr/$(get_libdir)/lapack/mkl-rt
dosym ../../libmkl_rt.so usr/$(get_libdir)/lapack/mkl-rt/liblapack.so
dosym ../../libmkl_rt.so usr/$(get_libdir)/lapack/mkl-rt/liblapack.so.3
dosym ../../libmkl_rt.so usr/$(get_libdir)/lapack/mkl-rt/liblapacke.so
dosym ../../libmkl_rt.so usr/$(get_libdir)/lapack/mkl-rt/liblapacke.so.3
dosym ../../libomp.so usr/$(get_libdir)/lapack/mkl-rt/libiomp5.so
fi
}
pkg_postinst() {
use eselect-ldso || return
local libdir=$(get_libdir) me="mkl-rt"
# check blas
eselect blas add ${libdir} "${EROOT}"/usr/${libdir}/blas/${me} ${me}
local current_blas=$(eselect blas show ${libdir} | cut -d' ' -f2)
if [[ ${current_blas} == "${me}" || -z ${current_blas} ]]; then
eselect blas set ${libdir} ${me}
elog "Current eselect: BLAS/CBLAS ($libdir) -> [${current_blas}]."
else
elog "Current eselect: BLAS/CBLAS ($libdir) -> [${current_blas}]."
elog "To use blas [${me}] implementation, you have to issue (as root):"
elog "\t eselect blas set ${libdir} ${me}"
fi
# check lapack
eselect lapack add ${libdir} "${EROOT}"/usr/${libdir}/lapack/${me} ${me}
local current_lapack=$(eselect lapack show ${libdir} | cut -d' ' -f2)
if [[ ${current_lapack} == "${me}" || -z ${current_lapack} ]]; then
eselect lapack set ${libdir} ${me}
elog "Current eselect: LAPACK ($libdir) -> [${current_blas}]."
else
elog "Current eselect: LAPACK ($libdir) -> [${current_blas}]."
elog "To use lapack [${me}] implementation, you have to issue (as root):"
elog "\t eselect lapack set ${libdir} ${me}"
fi
}
pkg_postrm() {
if use eselect-ldso; then
eselect blas validate
eselect lapack validate
fi
}
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