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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
CMAKE_MAKEFILE_GENERATOR=emake
inherit cmake-utils
DESCRIPTION="BLAS,CBLAS,LAPACK,LAPACKE reference implementations"
HOMEPAGE="https://www.netlib.org/lapack/"
SRC_URI="https://www.netlib.org/${PN}/${P}.tar.gz"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~mips ppc ppc64 ~s390 sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos"
IUSE="lapacke doc eselect-ldso"
# TODO: static-libs 64bit-index
RDEPEND="
eselect-ldso? ( >=app-eselect/eselect-blas-0.2
>=app-eselect/eselect-lapack-0.2 )
!app-eselect/eselect-cblas
virtual/fortran
doc? ( app-doc/blas-docs )"
DEPEND="${RDEPEND}
virtual/pkgconfig"
src_configure() {
local mycmakeargs=(
-DCBLAS=ON
-DLAPACKE=$(usex lapacke)
-DBUILD_SHARED_LIBS=ON
)
cmake-utils_src_configure
}
src_install() {
cmake-utils_src_install
use eselect-ldso || return
# Create private lib directory for eselect::blas (ld.so.conf)
dodir /usr/$(get_libdir)/blas/reference
dosym ../../libblas.so usr/$(get_libdir)/blas/reference/libblas.so
dosym ../../libblas.so.3 usr/$(get_libdir)/blas/reference/libblas.so.3
dosym ../../libcblas.so usr/$(get_libdir)/blas/reference/libcblas.so
dosym ../../libcblas.so.3 usr/$(get_libdir)/blas/reference/libcblas.so.3
# Create private lib directory for eselect::lapack (ld.so.conf)
dodir /usr/$(get_libdir)/lapack/reference
dosym ../../liblapack.so usr/$(get_libdir)/lapack/reference/liblapack.so
dosym ../../liblapack.so.3 usr/$(get_libdir)/lapack/reference/liblapack.so.3
}
pkg_postinst() {
use eselect-ldso || return
local me=reference libdir=$(get_libdir)
# check eselect-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} ${me}
elog "Current eselect: BLAS ($libdir) -> [${current_blas}]."
else
elog "Current eselect: BLAS ($libdir) -> [${current_blas}]."
elog "To use blas [${me}] implementation, you have to issue (as root):"
elog "\t eselect blas set ${libdir} ${me}"
fi
# check eselect-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) -> [${current_lapack}]."
else
elog "Current eselect: LAPACK ($libdir) -> [${current_lapack}]."
elog "To use lapack [${me}] implementation, you have to issue (as root):"
elog "\t eselect lapack set ${libdir} ${me}"
fi
}
pkg_postrm() {
use eselect-ldso || return
eselect blas validate
eselect lapack validate
}
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