sys-devel/clang-runtime: Add 9.0 branch live ebuild

Signed-off-by: Michał Górny <mgorny@gentoo.org>

sys-devel/clang-runtime/clang-runtime-9.0.9999.ebuild

@@ -0,0 +1,32 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit multilib-build
+
+DESCRIPTION="Meta-ebuild for clang runtime libraries"
+HOMEPAGE="https://clang.llvm.org/"
+SRC_URI=""
+
+LICENSE="metapackage"
+# Note: keep it matching clang-9999 version
+SLOT="9.0.0"
+KEYWORDS=""
+IUSE="+compiler-rt crt libcxx openmp +sanitize"
+
+RDEPEND="
+	compiler-rt? (
+		~sys-libs/compiler-rt-${PV}:${SLOT}
+		sanitize? ( ~sys-libs/compiler-rt-sanitizers-${PV}:${SLOT} )
+	)
+	crt? (
+		|| (
+			sys-libs/netbsd-csu[${MULTILIB_USEDEP}]
+			sys-freebsd/freebsd-lib[${MULTILIB_USEDEP}]
+		)
+	)
+	libcxx? ( >=sys-libs/libcxx-${PV}[${MULTILIB_USEDEP}] )
+	openmp? ( >=sys-libs/libomp-${PV}[${MULTILIB_USEDEP}] )"
+
+REQUIRED_USE="sanitize? ( compiler-rt )"