sci-libs/mkl: version bump to 2020.4.304

Use eselect-ldso mechanism.
Respect Prefix.

Closes: https://bugs.gentoo.org/587338
Closes: https://bugs.gentoo.org/592662
Closes: https://bugs.gentoo.org/747304
Closes: https://bugs.gentoo.org/260810
Closes: https://bugs.gentoo.org/715548
Closes: https://bugs.gentoo.org/719976

Reported-by: Juergen Rose, François Bissey, Florian D., Martin Mokrejš
Reported-by: Michel Lang, juantxorena@gmail.com, Chris Larson, jorge

Package-Manager: Portage-3.0.8, Repoman-3.0.1
Signed-off-by: Aisha Tammy <gentoo@aisha.cc>
Signed-off-by: Benda Xu <heroxbd@gentoo.org>

1 files changed, 230 insertions, 0 deletions

diff --git a/sci-libs/mkl/mkl-2020.4.304.ebuild b/sci-libs/mkl/mkl-2020.4.304.ebuild
new file mode 100644
index 000000000000..ed552ffeb603
--- /dev/null
+++ b/sci-libs/mkl/mkl-2020.4.304.ebuild
@@ -0,0 +1,230 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+MULTILIB_COMPAT=( abi_x86_{32,64} )
+inherit multilib-build
+
+MAGIC=16917            # from registration center
+MY_P=${P/-/_}          # mkl_2020.4.304
+MY_PV=$(ver_rs 2 '-')  # 2020.4-304
+
+DESCRIPTION="Intel Math Kernel Library"
+HOMEPAGE="https://software.intel.com/en-us/intel-mkl"
+SRC_URI="http://registrationcenter-download.intel.com/akdlm/irc_nas/tec/${MAGIC}/l_${MY_P}.tgz -> ${P}.tar.gz"
+S="${WORKDIR}"/l_${MY_P}
+
+LICENSE="ISSL"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="static-libs"
+RESTRICT="strip"
+
+# MKL uses Intel/LLVM OpenMP by default.
+# One can change the threadding layer to "gnu" or "tbb"
+# through the MKL_THREADING_LAYER env var.
+RDEPEND="
+	app-eselect/eselect-blas
+	app-eselect/eselect-lapack
+	sys-libs/libomp[${MULTILIB_USEDEP}]
+"
+
+QA_PREBUILT="*"
+QA_TEXTRELS="*"
+QA_SONAME="*"
+
+# first unpack all rpms
+# find folders containing header like, static and dynamic lib files
+# these are the only folders we care about
+# find "${S}"/rpm -type f \( -name "*.a" -o -name "*.so" -o -wholename "*mkl/include*" \) \
+#	| tr '/' ' ' | awk '{ print $2 }' | sort | uniq
+
+# ignore all conda-* rpms
+# ignore all empty rpms
+# information about rest:
+#
+# mkl-core-ps-32bit-2020.3-279-2020.3-279.x86_64.rpm | some prebuilt benchmark executables
+# psxe-common-2020.3-111-2020.3-111.noarch.rpm
+# comp-l-all-vars-19.1.2-279-19.1.2-279.noarch.rpm
+# comp-nomcu-vars-19.1.2-279-19.1.2-279.noarch.rpm
+# mkl-cluster-c-2020.3-279-2020.3-279.noarch.rpm
+# mkl-cluster-f-2020.3-279-2020.3-279.noarch.rpm
+# mkl-doc-2020-2020.3-279.noarch.rpm
+# mkl-common-ps-2020.3-279-2020.3-279.noarch.rpm | only contains benchmarks
+# compxe-pset-2020.3-111-2020.3-111.noarch.rpm | only contains benchmarks
+# mkl-doc-ps-2020-2020.3-279.noarch.rpm
+# mkl-common-2020.3-279-2020.3-279.noarch.rpm | setting up environment vars (might be needed for parallel studio)
+# mkl-installer-license-2020.3-279-2020.3-279.noarch.rpm | already have license
+# mkl-psxe-2020.3-111-2020.3-111.noarch.rpm | useless files
+# mkl-common-c-ps-2020.3-279-2020.3-279.noarch.rpm | contained in common-c
+
+INTEL_DIST_X86_RPMS=(
+	mkl-core-32bit
+	mkl-core-rt-32bit
+	mkl-f95-32bit
+	mkl-gnu-32bit
+	mkl-gnu-f-32bit
+	mkl-gnu-f-rt-32bit
+	mkl-gnu-rt-32bit
+	mkl-tbb-32bit
+	mkl-tbb-rt
+	intel-openmp-32bit-19.1.3-304-19.1.3-304.x86_64.rpm
+)
+INTEL_DIST_AMD64_RPMS=(
+	mkl-cluster
+	mkl-cluster-rt
+	mkl-core
+	mkl-core-ps
+	mkl-core-rt
+	mkl-f95
+	mkl-gnu
+	mkl-gnu-f
+	mkl-gnu-rt
+	mkl-gnu-f-rt
+	mkl-pgi
+	mkl-pgi-rt
+	mkl-tbb
+	mkl-tbb-rt
+	intel-openmp-19.1.3-304-19.1.3-304.x86_64.rpm
+)
+INTEL_DIST_DAT_RPMS=(
+	mkl-common-c
+	mkl-common-f
+	mkl-f95-common
+)
+
+rpm_dirname() {
+	local rpm="${1}" suffix="x86_64"
+	if [[ $# -eq 2 ]]; then
+		suffix="$2"
+	fi
+	if [[ ! ${rpm} =~ "rpm" ]] ; then
+		rpm="intel-${rpm}-${MY_PV}-${MY_PV}.${suffix}"
+	fi
+	printf '%s\n' "${rpm%%.rpm}"
+}
+
+rpm_unpack() {
+	local rpm="$1" suffix="x86_64"
+	if [[ $# -eq 2 ]]; then
+		suffix="$2"
+	fi
+	rpm="$(rpm_dirname $rpm $suffix)"
+	elog "Unpacking - ${rpm}.rpm"
+	rpmunpack "${rpm}.rpm" || die
+}
+
+src_unpack() {
+	default
+	cd "${S}"/rpm
+	local rpm
+	for rpm in ${INTEL_DIST_DAT_RPMS[@]}; do
+		rpm_unpack ${rpm} noarch
+	done
+	if use abi_x86_64 ; then
+		for rpm in ${INTEL_DIST_AMD64_RPMS[@]}; do
+			rpm_unpack ${rpm}
+		done
+	fi
+	if use abi_x86_32 ; then
+		for rpm in ${INTEL_DIST_X86_RPMS[@]}; do
+			rpm_unpack ${rpm}
+		done
+	fi
+}
+
+multilib_src_install() {
+	cd "${S}"/rpm
+	elog "current variant - ${MULTIBUILD_VARIANT}"
+	local rpm rpm_list libdir=$(get_libdir)
+	if [[ ${MULTIBUILD_VARIANT} =~ 'amd64' ]] ; then
+		rpm_list="${INTEL_DIST_AMD64_RPMS[@]}"
+	else
+		rpm_list="${INTEL_DIST_X86_RPMS[@]}"
+	fi
+	for rpm in ${rpm_list} ; do
+		rpm=$(rpm_dirname ${rpm})
+		elog "installing libs from - ${rpm}"
+		local libso liba
+		for libso in $(find "${S}"/rpm/${rpm} -name "*.so") ; do
+			dolib.so "${libso}"
+		done
+		use static-libs && \
+		for liba in $(find "${S}"/rpm/${rpm} -name "*.a") ; do
+			dolib.a "${liba}"
+		done
+	done
+
+	dodir /usr/$(get_libdir)/blas/mkl
+	dosym ../../libmkl_rt.so usr/$(get_libdir)/blas/mkl/libblas.so
+	dosym ../../libmkl_rt.so usr/$(get_libdir)/blas/mkl/libblas.so.3
+	dosym ../../libmkl_rt.so usr/$(get_libdir)/blas/mkl/libcblas.so
+	dosym ../../libmkl_rt.so usr/$(get_libdir)/blas/mkl/libcblas.so.3
+	dodir /usr/$(get_libdir)/lapack/mkl
+	dosym ../../libmkl_rt.so usr/$(get_libdir)/lapack/mkl/liblapack.so
+	dosym ../../libmkl_rt.so usr/$(get_libdir)/lapack/mkl/liblapack.so.3
+	dosym ../../libmkl_rt.so usr/$(get_libdir)/lapack/mkl/liblapacke.so
+	dosym ../../libmkl_rt.so usr/$(get_libdir)/lapack/mkl/liblapacke.so.3
+
+	# for some reason pkgconfig files are only for amd64
+	[[ ${MULTIBUILD_VARIANT} =~ 'amd64' ]] || return
+	local pc_files=( "${FILESDIR}"/*.pc )
+	insinto /usr/$(get_libdir)/pkgconfig
+	for pc in "${pc_files[@]}" ; do
+		doins "${pc}"
+		sed -e "s:@PREFIX@:${EPREFIX}/usr:" \
+		    -i "${ED}"/usr/$(get_libdir)/pkgconfig/${pc##*/} || die
+	done
+}
+
+src_install() {
+	# install bunch of header like files
+	dodir /usr/include/mkl
+	for idir in $(find "${S}"/rpm -type d -wholename "*mkl/include"); do
+		cp -a "${idir}"/. "${ED}"/usr/include/mkl || die
+	done
+
+	multilib_foreach_abi multilib_src_install
+}
+
+library-provider_pkg_postinst() {
+	local libdir=$(get_libdir) me="mkl"
+
+	# 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_postinst() {
+	multilib_foreach_abi library-provider_pkg_postinst
+}
+
+library-provider_pkg_postrm() {
+	eselect blas validate
+	eselect lapack validate
+}
+
+pkg_postrm() {
+	multilib_foreach_abi library-provider_pkg_postrm
+}