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# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
inherit fortran-2 toolchain-funcs
DESCRIPTION="Optimized BLAS library based on GotoBLAS2"
HOMEPAGE="http://xianyi.github.com/OpenBLAS/"
SRC_URI="https://github.com/xianyi/OpenBLAS/tarball/v${PV} -> ${P}.tar.gz"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
IUSE="dynamic eselect-ldso index-64bit openmp pthread"
REQUIRED_USE="?? ( openmp pthread )"
RDEPEND="
eselect-ldso? ( >=app-eselect/eselect-blas-0.2
!app-eselect/eselect-cblas
>=app-eselect/eselect-lapack-0.2 )"
DEPEND="virtual/pkgconfig"
PATCHES=( "${FILESDIR}/shared-blas-lapack.patch" )
src_prepare() {
default
# Set compiler and common CFLAGS.
sed \
-e "/^#\s*CC/cCC=$(tc-getCC)" \
-e "/^#\s*FC/cFC=$(tc-getFC)" \
-e "/^#\s*COMMON_OPT/cCOMMON_OPT=${CFLAGS}" \
-i "${S}"/Makefile.rule || die
}
openblas_flags() {
local flags=()
use dynamic && \
flags+=( DYNAMIC_ARCH=1 TARGET=GENERIC NUM_THREADS=64 NO_AFFINITY=1 )
if use openmp; then
tc-check-openmp
flags+=( USE_THREAD=1 USE_OPENMP=1 )
elif use pthread; then
flags+=( USE_THREAD=1 USE_OPENMP=0 )
else
flags+=( USE_THREAD=0 ) # serial
fi
flags+=( DESTDIR="${D}" PREFIX="${EPREFIX}/usr" )
flags+=( OPENBLAS_INCLUDE_DIR='$(PREFIX)'/include/${PN} )
flags+=( OPENBLAS_LIBRARY_DIR='$(PREFIX)'/$(get_libdir) )
echo "${flags[@]}"
}
src_unpack () {
default
mv "${WORKDIR}"/*OpenBLAS* "${S}" || die
if use index-64bit; then
cp -aL "${S}" "${S}-index-64bit" || die
fi
}
src_compile () {
emake $(openblas_flags)
emake -Cinterface shared-blas-lapack $(openblas_flags)
if use index-64bit; then
emake -C"${S}-index-64bit" $(openblas_flags) INTERFACE64=1 LIBPREFIX=libopenblas64
fi
}
src_test() {
emake tests $(openblas_flags)
}
src_install () {
emake install $(openblas_flags)
dodoc GotoBLAS_*.txt *.md Changelog.txt
if use eselect-ldso; then
dodir /usr/$(get_libdir)/blas/openblas/
insinto /usr/$(get_libdir)/blas/openblas/
doins interface/libblas.so.3
dosym libblas.so.3 usr/$(get_libdir)/blas/openblas/libblas.so
doins interface/libcblas.so.3
dosym libcblas.so.3 usr/$(get_libdir)/blas/openblas/libcblas.so
dodir /usr/$(get_libdir)/lapack/openblas/
insinto /usr/$(get_libdir)/lapack/openblas/
doins interface/liblapack.so.3
dosym liblapack.so.3 usr/$(get_libdir)/lapack/openblas/liblapack.so
fi
if use index-64bit; then
insinto /usr/$(get_libdir)/
dolib.so "${S}-index-64bit"/libopenblas64*.so*
fi
}
pkg_postinst () {
use eselect-ldso || return
local libdir=$(get_libdir) me="openblas"
# 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) -> [${current_lapack}]."
else
elog "Current eselect: LAPACK ($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 () {
if use eselect-ldso; then
eselect blas validate
eselect lapack validate
fi
}
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