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diff --git a/dev-cpp/tbb/tbb-2020.3.ebuild b/dev-cpp/tbb/tbb-2020.3.ebuild
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+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit flag-o-matic multilib-minimal multilib multibuild toolchain-funcs
+
+PV1="$(ver_cut 1)"
+PV2="$(ver_cut 2)"
+MY_PV="${PV1}_U${PV2}"
+
+DESCRIPTION="High level abstract threading library"
+HOMEPAGE="https://github.com/oneapi-src/oneTBB"
+SRC_URI="https://github.com/intel/${PN}/archive/${MY_PV}.tar.gz -> ${P}.tar.gz"
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ppc ppc64 ~riscv ~sparc x86"
+IUSE="debug examples"
+
+S="${WORKDIR}/oneTBB-${MY_PV}"
+
+DOCS=( CHANGES README README.md doc/Release_Notes.txt )
+
+PATCHES=(
+ "${FILESDIR}"/${PN}-2020.1-makefile-debug.patch
+ "${FILESDIR}"/${PN}-2020.3-gcc13.patch
+ "${FILESDIR}"/${PN}-2020.3-musl.patch
+)
+
+src_prepare() {
+ default
+
+ find include -name \*.html -delete || die
+
+ # Give it a soname on FreeBSD
+ echo 'LIB_LINK_FLAGS += -Wl,-soname=$(BUILDING_LIBRARY)' >> build/FreeBSD.gcc.inc
+ # Set proper versionning on FreeBSD
+ sed -i -e '/.DLL =/s/$/.1/' build/FreeBSD.inc || die
+
+ use debug || sed -i -e '/_debug/d' Makefile
+}
+
+multilib_src_configure() {
+ # Workaround for bug #912210
+ append-ldflags $(test-flags-CCLD -Wl,--undefined-version)
+
+ # pc files are for debian and fedora compatibility
+ # some deps use them
+ cat <<-EOF > ${PN}.pc.template
+ prefix=${EPREFIX}/usr
+ libdir=\${prefix}/$(get_libdir)
+ includedir=\${prefix}/include
+ Name: ${PN}
+ Description: ${DESCRIPTION}
+ Version: ${PV}
+ URL: ${HOMEPAGE}
+ Cflags: -I\${includedir}
+ EOF
+ cp ${PN}.pc.template ${PN}.pc || die
+ cat <<-EOF >> ${PN}.pc
+ Libs: -L\${libdir} -ltbb
+ Libs.private: -lm -lrt
+ EOF
+ cp ${PN}.pc.template ${PN}malloc.pc || die
+ cat <<-EOF >> ${PN}malloc.pc
+ Libs: -L\${libdir} -ltbbmalloc
+ Libs.private: -lm -lrt
+ EOF
+ cp ${PN}.pc.template ${PN}malloc_proxy.pc || die
+ cat <<-EOF >> ${PN}malloc_proxy.pc
+ Libs: -L\${libdir} -ltbbmalloc_proxy
+ Libs.private: -lrt
+ Requires: tbbmalloc
+ EOF
+}
+
+local_src_compile() {
+ cd "${S}"
+
+ local comp arch
+ local bt buildtypes
+
+ case ${MULTILIB_ABI_FLAG} in
+ abi_x86_64) arch=x86_64 ;;
+ abi_x86_32) arch=ia32 ;;
+# abi_ppc_64) arch=ppc64 ;;
+# abi_ppc_32) arch=ppc32 ;;
+ esac
+
+ case "$(tc-getCXX)" in
+ *clang*) comp="clang" ;;
+ *g++*) comp="gcc" ;;
+ *ic*c) comp="icc" ;;
+ *) die "compiler $(tc-getCXX) not supported by build system" ;;
+ esac
+
+ if use debug ; then
+ buildtypes="release debug"
+ else
+ buildtypes="release"
+ fi
+
+ for bt in ${buildtypes}; do
+ CXX="$(tc-getCXX)" \
+ CC="$(tc-getCC)" \
+ AS="$(tc-getAS)" \
+ arch=${arch} \
+ CPLUS_FLAGS="${CXXFLAGS}" \
+ emake compiler=${comp} work_dir="${BUILD_DIR}" tbb_root="${S}" cfg=${bt} $@
+ done
+}
+
+multilib_src_compile() {
+ local_src_compile tbb tbbmalloc
+}
+
+multilib_src_test() {
+ local_src_compile test
+}
+
+multilib_src_install() {
+ local bt
+ local buildtypes
+ if use debug ; then
+ buildtypes="release debug"
+ else
+ buildtypes="release"
+ fi
+ for bt in ${buildtypes}; do
+ cd "${BUILD_DIR}_${bt}" || die
+ local l
+ for l in $(find . -name lib\*$(get_libname \*)); do
+ dolib.so ${l}
+ local bl=$(basename ${l})
+ dosym ${bl} /usr/$(get_libdir)/${bl%%.*}$(get_libname)
+ done
+ done
+
+ cd "${BUILD_DIR}" || die
+ insinto /usr/$(get_libdir)/pkgconfig
+ doins *.pc
+}
+
+multilib_src_install_all() {
+ doheader -r include/*
+
+ einstalldocs
+
+ if use examples ; then
+ dodoc -r examples
+ docinto examples/build
+ dodoc build/*.inc
+ docompress -x /usr/share/doc/${PF}/examples
+ fi
+}