--- /dev/null
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+USE_RUBY="ruby24 ruby25 ruby26 ruby27"
+inherit autotools flag-o-matic multilib-minimal ruby-single
+
+DESCRIPTION="Alternative to vendor specific OpenCL ICD loaders"
+HOMEPAGE="https://github.com/OCL-dev/ocl-icd"
+SRC_URI="https://github.com/OCL-dev/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+LICENSE="BSD-2"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+
+IUSE="+khronos-headers"
+
+BDEPEND="${RUBY_DEPS}"
+RDEPEND="!app-eselect/eselect-opencl
+ !dev-libs/opencl-icd-loader
+ !x11-drivers/nvidia-drivers"
+
+PATCHES=("${FILESDIR}"/${P}-gcc-10.patch)
+
+src_prepare() {
+ replace-flags -Os -O2 # bug 646122
+
+ default
+ eautoreconf
+}
+
+multilib_src_configure() {
+ ECONF_SOURCE="${S}" econf --enable-pthread-once
+}
+
+multilib_src_install() {
+ default
+
+ # Drop .la files
+ find "${ED}" -name '*.la' -delete || die
+
+ # Install vendor headers
+ if use khronos-headers; then
+ insinto /usr/include
+ doins -r "${S}/khronos-headers/CL"
+ fi
+}