commit: 59da9cb4ec69a8aa6fc924408e8e5c924b7acd91 Author: Paul Zander <negril.nx+gentoo <AT> gmail <DOT> com> AuthorDate: Wed Sep 10 14:49:49 2025 +0000 Commit: Sam James <sam <AT> gentoo <DOT> org> CommitDate: Thu Sep 11 03:25:12 2025 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=59da9cb4
sci-libs/openblas: use USE=cpudetection Closes: https://bugs.gentoo.org/961818 Signed-off-by: Paul Zander <negril.nx+gentoo <AT> gmail.com> Part-of: https://github.com/gentoo/gentoo/pull/43730 Signed-off-by: Sam James <sam <AT> gentoo.org> sci-libs/openblas/metadata.xml | 3 + sci-libs/openblas/openblas-0.3.30-r2.ebuild | 208 ++++++++++++++++++++++++++++ 2 files changed, 211 insertions(+) diff --git a/sci-libs/openblas/metadata.xml b/sci-libs/openblas/metadata.xml index 11aed171af85..9df6d2329b08 100644 --- a/sci-libs/openblas/metadata.xml +++ b/sci-libs/openblas/metadata.xml @@ -21,6 +21,9 @@ bug fixes beyond GotoBLAS. </longdescription> <use> + <flag name="cpudetection"> + Build dynamic architecture detection at run time (for multi targets) + </flag> <flag name="dynamic"> Build dynamic architecture detection at run time (for multi targets) </flag> diff --git a/sci-libs/openblas/openblas-0.3.30-r2.ebuild b/sci-libs/openblas/openblas-0.3.30-r2.ebuild new file mode 100644 index 000000000000..64069ff2e5ef --- /dev/null +++ b/sci-libs/openblas/openblas-0.3.30-r2.ebuild @@ -0,0 +1,208 @@ +# Copyright 1999-2025 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +EAPI=8 + +inherit flag-o-matic fortran-2 toolchain-funcs + +MY_P=OpenBLAS-${PV} +DESCRIPTION="Optimized BLAS library based on GotoBLAS2" +HOMEPAGE="https://github.com/xianyi/OpenBLAS"; +SRC_URI="https://github.com/OpenMathLib/OpenBLAS/releases/download/v${PV}/${MY_P}.tar.gz"; +S="${WORKDIR}"/${MY_P} + +LICENSE="BSD" +SLOT="0" +KEYWORDS="~amd64 ~arm ~arm64 ~loong ~riscv ~x86 ~amd64-linux ~x86-linux ~x64-macos" +IUSE="cpudetection eselect-ldso index-64bit openmp pthread relapack test" +REQUIRED_USE="?? ( openmp pthread )" +RESTRICT="cpudetection? ( bindist ) !test? ( test )" + +RDEPEND=" + eselect-ldso? ( + >=app-eselect/eselect-blas-0.2 + >=app-eselect/eselect-lapack-0.2 + ) +" +BDEPEND="virtual/pkgconfig" + +PATCHES=( + "${FILESDIR}/${PN}-0.3.29-shared-blas-lapack.patch" +) + +pkg_pretend() { + [[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp + + elog "This software has a massive number of options that" + elog "are configurable and it is *impossible* for all of" + elog "those to fit inside any manageable ebuild." + elog "The Gentoo provided package has enough to build" + elog "a fully optimized library for your targeted CPU." + elog "You can set the CPU target using the environment" + elog "variable - OPENBLAS_TARGET or it will be detected" + elog "automatically from the target toolchain (supports" + elog "cross compilation toolchains)." + elog "You can control the maximum number of threads" + elog "using OPENBLAS_NTHREAD, default=64 and number of " + elog "parallel calls to allow before further calls wait" + elog "using OPENBLAS_NPARALLEL, default=8." +} + +pkg_setup() { + [[ ${MERGE_TYPE} != binary ]] && use openmp && tc-check-openmp + + fortran-2_pkg_setup +} + +src_prepare() { + default + + # TODO: Unbundle lapack like Fedora does? + # https://src.fedoraproject.org/rpms/openblas/blob/rawhide/f/openblas-0.2.15-system_lapack.patch + + # Don't build the tests as part of "make all". We'll do + # it explicitly later if the test phase is enabled. + sed -i -e "/^all :: tests/s: tests::g" Makefile || die + + # If 64bit-index is needed, create second library with LIBPREFIX=libopenblas64 + if use index-64bit; then + cp -aL "${S}" "${S}-index-64bit" || die + fi +} + +src_configure() { + # List of most configurable options is in Makefile.rule. + + # Not an easy fix, https://github.com/xianyi/OpenBLAS/issues/4128 + filter-lto + + tc-export CC FC LD AR AS RANLIB + + # HOSTCC is used for scripting + export HOSTCC="$(tc-getBUILD_CC)" + + # Threading options + export USE_THREAD=0 + export USE_OPENMP=0 + if use openmp; then + USE_THREAD=1 + USE_OPENMP=1 + elif use pthread; then + USE_THREAD=1 + USE_OPENMP=0 + fi + + # Disable submake with -j and default optimization flags in Makefile.system + # Makefile.rule says to not modify COMMON_OPT/FCOMMON_OPT... + export MAKE_NB_JOBS=-1 COMMON_OPT=" " FCOMMON_OPT=" " + + # Target CPU ARCH options generally detected automatically from cross toolchain + if use cpudetection ; then + export DYNAMIC_ARCH=1 NO_AFFINITY=1 TARGET=GENERIC + fi + + export NUM_PARALLEL=${OPENBLAS_NPARALLEL:-8} NUM_THREADS=${OPENBLAS_NTHREAD:-64} + + # Allow setting OPENBLAS_TARGET to override auto detection in case the + # toolchain is not enough to detect. + # https://github.com/xianyi/OpenBLAS/blob/develop/TargetList.txt + if ! use cpudetection ; then + if [[ -n "${OPENBLAS_TARGET}" ]] ; then + export TARGET="${OPENBLAS_TARGET}" + elif [[ ${CBUILD} != ${CHOST} ]] ; then + case ${CHOST} in + aarch64-*) + export TARGET="ARMV8" + export BINARY="64" + ;; + powerpc64le-*) + export TARGET="POWER8" + export BUILD_BFLOAT16=1 + export BINARY=64 + ;; + esac + fi + fi + + export NO_STATIC=1 + export BUILD_RELAPACK=$(usex relapack 1 0) + export PREFIX="${EPREFIX}/usr" +} + +src_compile() { + emake shared + + use eselect-ldso && emake -C interface shared-blas-lapack + + if use index-64bit; then + emake -C "${S}-index-64bit" \ + INTERFACE64=1 \ + LIBPREFIX=libopenblas64 shared + fi +} + +src_test() { + emake tests +} + +src_install() { + emake install DESTDIR="${D}" \ + OPENBLAS_INCLUDE_DIR='$(PREFIX)'/include/${PN} \ + OPENBLAS_LIBRARY_DIR='$(PREFIX)'/$(get_libdir) + + dodoc GotoBLAS_*.txt *.md Changelog.txt + + if use index-64bit; then + dolib.so "${S}-index-64bit"/libopenblas64*.so* + fi + + if use eselect-ldso; then + insinto /usr/$(get_libdir)/blas/openblas/ + doins interface/libblas.so.3 + dosym -r /usr/$(get_libdir)/blas/openblas/libblas.so.3 /usr/$(get_libdir)/blas/openblas/libblas.so + doins interface/libcblas.so.3 + dosym -r /usr/$(get_libdir)/blas/openblas/libcblas.so.3 /usr/$(get_libdir)/blas/openblas/libcblas.so + + insinto /usr/$(get_libdir)/lapack/openblas/ + doins interface/liblapack.so.3 + dosym -r /usr/$(get_libdir)/lapack/openblas/liblapack.so.3 /usr/$(get_libdir)/lapack/openblas/liblapack.so + doins interface/liblapacke.so.3 + dosym -r /usr/$(get_libdir)/lapack/openblas/liblapacke.so.3 /usr/$(get_libdir)/lapack/openblas/liblapacke.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 +}
