1 files changed, 61 insertions, 0 deletions
diff --git a/dev-libs/oneCCL/oneCCL-2021.7.1-r1.ebuild b/dev-libs/oneCCL/oneCCL-2021.7.1-r1.ebuild
new file mode 100644
index 000000000..76ab29af2
--- /dev/null
+++ b/dev-libs/oneCCL/oneCCL-2021.7.1-r1.ebuild
@@ -0,0 +1,61 @@
+# Copyright 2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="oneAPI Collective Communications Library"
+HOMEPAGE="https://github.com/oneapi-src/oneCCL"
+SRC_URI="https://github.com/oneapi-src/oneCCL/archive/refs/tags/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="~amd64"
+
+IUSE="mpi"
+
+BDEPEND="sys-devel/DPC++"
+
+DEPEND="
+	dev-libs/level-zero:=
+	sys-apps/hwloc:=
+	sys-block/libfabric:=
+	sys-devel/ittapi
+	mpi? ( virtual/mpi )
+"
+RDEPEND="${DEPEND}"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-2021.7.1-use-system-libs.patch"
+)
+
+src_prepare() {
+	# No -Werror
+	find . -name "CMakeLists.txt" -exec sed -i "s/-Werror//g" {} + || die
+
+	# Use system libs instead
+	rm -r deps/* || die
+
+	# DPC++ compiler required for full functionality
+	export CC="${ESYSROOT}/usr/lib/llvm/intel/bin/clang"
+	export CXX="${ESYSROOT}/usr/lib/llvm/intel/bin/clang++"
+
+	cmake_src_prepare
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_EXAMPLES=OFF
+		# BUILD_CONFIG causes sandbox violation
+		-DBUILD_CONFIG=OFF
+		-DCCL_ENABLE_ZE=ON
+		# TODO: Find out how to execute the tests
+		-DBUILD_FT=OFF
+		-DENABLE_MPI_TESTS=OFF
+		-DENABLE_MPI="$(usex mpi)"
+		# Use system fabric
+		-DLIBFABRIC_DIR="${ESYSROOT}/usr"
+	)
+	cmake_src_configure
+}