commit: 4ad7a246f67a212419ec1270a868223a9a656cb8 Author: Michał Górny <mgorny <AT> gentoo <DOT> org> AuthorDate: Mon Jul 21 13:52:30 2025 +0000 Commit: Michał Górny <mgorny <AT> gentoo <DOT> org> CommitDate: Mon Jul 21 15:06:34 2025 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4ad7a246
sci-libs/mkl: Install a dummy libiomp5.so to fix mkl_rt Install a dummy libiomp5.so to make MKL_THREADING_LAYER=INTEL work. Use upstream documented values for MKL_THREADING_LAYER. Signed-off-by: Michał Górny <mgorny <AT> gentoo.org> sci-libs/mkl/mkl-2025.2.0.628-r1.ebuild | 160 ++++++++++++++++++++++++++++++++ 1 file changed, 160 insertions(+) diff --git a/sci-libs/mkl/mkl-2025.2.0.628-r1.ebuild b/sci-libs/mkl/mkl-2025.2.0.628-r1.ebuild new file mode 100644 index 000000000000..7a2ac73606c2 --- /dev/null +++ b/sci-libs/mkl/mkl-2025.2.0.628-r1.ebuild @@ -0,0 +1,160 @@ +# Copyright 1999-2025 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +EAPI=8 + +inherit unpacker + +PN_VER=$(ver_cut 1-2) +MY_PV=$(ver_cut 1-3)-$(ver_cut 4) +DESCRIPTION="Intel Math Kernel Library" +HOMEPAGE="https://www.intel.com/content/www/us/en/developer/tools/oneapi/onemkl.html"; +# Upstream packages are a mess -- and most of them are literally empty. +SRC_URI=" + https://apt.repos.intel.com/oneapi/pool/main/intel-oneapi-mkl-core-${PN_VER}-${MY_PV}_amd64.deb + https://apt.repos.intel.com/oneapi/pool/main/intel-oneapi-mkl-core-devel-${PN_VER}-${MY_PV}_amd64.deb + https://apt.repos.intel.com/oneapi/pool/main/intel-oneapi-mkl-classic-include-${PN_VER}-${MY_PV}_amd64.deb +" +S="${WORKDIR}" + +LICENSE="ISSL" +SLOT="0" +KEYWORDS="~amd64" +IUSE="examples gnu-openmp llvm-openmp static-libs tbb" +RESTRICT="strip" + +RDEPEND=" + app-eselect/eselect-blas + app-eselect/eselect-lapack + gnu-openmp? ( sys-devel/gcc:*[openmp] ) + llvm-openmp? ( llvm-runtimes/openmp ) + tbb? ( dev-cpp/tbb ) +" +# bug #801460 +BDEPEND=" + app-arch/xz-utils[extra-filters(+)] + app-eselect/eselect-blas + app-eselect/eselect-lapack +" + +QA_PREBUILT="*" +QA_TEXTRELS="*" +QA_SONAME="*" + +src_install() { + local libdir=$(get_libdir) + local libroot=opt/intel/oneapi/mkl/${PN_VER}/lib + + if ! use static-libs; then + rm -v "${libroot}"/{*.a,pkgconfig/*-static-*.pc} || die + fi + if ! use examples; then + rm -rv "opt/intel/oneapi/mkl/${PN_VER}"/share/{mkl/benchmarks,doc/mkl/examples} || die + fi + if ! use gnu-openmp; then + rm -v "${libroot}"/{*_gnu_thread.*,pkgconfig/*-gomp.pc} || die + fi + if use llvm-openmp; then + # Replace Intel OpenMP with LLVM OpenMP. We could just install + # "openmp.pc" for that, but we don't want random packages + # to start depending on it. + sed -e '/Requires: openmp/d' \ + -e '/Libs:/s:$: -lomp:' \ + -i "${libroot}"/pkgconfig/*iomp.pc || die + # Install a "libiomp5.so" symlink to make the magical lookup + # in mkl_rt.so happy too. + ln -s "../../../../../../usr/$(get_libdir)/libomp.so" \ + "${libroot}"/libiomp5.so || die + else + rm -v "${libroot}"/{*_intel_thread.*,pkgconfig/*-iomp.pc} || die + fi + if ! use tbb; then + rm -v "${libroot}"/{*_tbb_thread.*,pkgconfig/*-tbb.pc} || die + fi + + # Symlink pkgconfig and cmake files + pushd "${libroot}/pkgconfig" >/dev/null || die + for file in *.pc; do + dosym "../../../${libroot}/pkgconfig/${file}" \ + "/usr/${libdir}/pkgconfig/${file}" + done + popd >/dev/null || die + pushd "${libroot}/cmake/mkl" >/dev/null || die + for file in *.cmake; do + dosym "../../../../${libroot}/cmake/mkl/${file}" \ + "/usr/${libdir}/cmake/mkl/${file}" + done + popd >/dev/null || die + + # Move everything over to the image directory + mv "${S}/"* "${ED}" || die + + # Create convenience symlink that does not include the version number + dosym "${PN_VER}" /opt/intel/oneapi/mkl/latest + + local lib=../../../../${libroot}/libmkl_rt.so + dodir "/usr/${libdir}"/{blas,lapack}/mkl + dosym "${lib}" "/usr/${libdir}/blas/mkl/libblas.so" + dosym "${lib}" "/usr/${libdir}/blas/mkl/libblas.so.3" + dosym "${lib}" "/usr/${libdir}/blas/mkl/libcblas.so" + dosym "${lib}" "/usr/${libdir}/blas/mkl/libcblas.so.3" + dosym "${lib}" "/usr/${libdir}/lapack/mkl/liblapack.so" + dosym "${lib}" "/usr/${libdir}/lapack/mkl/liblapack.so.3" + dosym "${lib}" "/usr/${libdir}/lapack/mkl/liblapacke.so" + dosym "${lib}" "/usr/${libdir}/lapack/mkl/liblapacke.so.3" + + # https://www.intel.com/content/www/us/en/docs/onemkl/developer-guide-linux/2025-1/dynamic-select-the-interface-and-threading-layer.html + local default_threading_layer + if use llvm-openmp; then + default_threading_layer=INTEL + elif use gnu-openmp; then + default_threading_layer=GNU + elif use tbb; then + default_threading_layer=TBB + else + default_threading_layer=SEQUENTIAL + fi + + newenvd - "70intel-mkl" <<-_EOF_ + MKLROOT="${EPREFIX}/opt/intel/oneapi/mkl/${PN_VER}" + PATH="${EPREFIX}/opt/intel/oneapi/mkl/${PN_VER}/bin" + # we need to duplicate it in ROOTPATH for Portage to respect... + ROOTPATH="${EPREFIX}/opt/intel/oneapi/mkl/${PN_VER}/bin" + LDPATH="${EPREFIX}/opt/intel/oneapi/mkl/${PN_VER}/lib" + # respect USE flags for defaults + MKL_THREADING_LAYER=${default_threading_layer} + _EOF_ +} + +pkg_postinst() { + local libdir=$(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_postrm() { + eselect blas validate + eselect lapack validate +}
