sys-libs/liburing: import from gentoo

sdk_container/src/third_party/portage-stable/sys-libs/liburing/Manifest

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+DIST liburing-0.7.tar.bz2 86386 BLAKE2B a4fa00cc8e384f9909f3c628d479774beaffd5ab09c9f321ef22bfbabd273e4c8d4dbb30a3280633e89e1a79e893348e68f0aa2f3b1b4deda56759f77d9b1875 SHA512 9a23bc08e0fa59273264295859dddbe3276b2911df6d937b3c6f7647a250a3175222b5f051f3094efc98e48cacd242511327c5c5b895ebde10c8c87929ba4328

sdk_container/src/third_party/portage-stable/sys-libs/liburing/liburing-0.7-r1.ebuild

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+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit multilib-minimal toolchain-funcs
+
+DESCRIPTION="Efficient I/O with io_uring"
+HOMEPAGE="https://github.com/axboe/liburing"
+SRC_URI="https://git.kernel.dk/cgit/${PN}/snapshot/${P}.tar.bz2"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~ppc ppc64 sparc x86"
+LICENSE="MIT"
+SLOT="0/1.0.7" # liburing.so version
+
+IUSE="static-libs"
+# fsync test hangs forever
+RESTRICT="test"
+
+src_prepare() {
+	default
+	multilib_copy_sources
+}
+
+multilib_src_configure() {
+	local myconf=(
+		--prefix="${EPREFIX}/usr"
+		--libdir="${EPREFIX}/usr/$(get_libdir)"
+		--libdevdir="${EPREFIX}/usr/$(get_libdir)"
+		--mandir="${EPREFIX}/usr/share/man"
+		--cc="$(tc-getCC)"
+	)
+	# No autotools configure! "econf" will fail.
+	TMPDIR="${T}" ./configure "${myconf[@]}"
+}
+
+multilib_src_compile() {
+	emake V=1 AR="$(tc-getAR)" RANLIB="$(tc-getRANLIB)"
+}
+
+multilib_src_install_all() {
+	einstalldocs
+
+	if ! use static-libs ; then
+		find "${ED}" -type f -name "*.a" -delete || die
+	fi
+}
+
+multilib_src_test() {
+	emake V=1 runtests
+}

sdk_container/src/third_party/portage-stable/sys-libs/liburing/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>polynomial-c@gentoo.org</email>
+		<name>Lars Wendler</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">axboe/liburing</remote-id>
+	</upstream>
+</pkgmetadata>