dev-util/DirectXShaderCompiler: Preliminary update. New version is still borked, need update

Bug: https://bugs.gentoo.org/895234
Signed-off-by: Denis Reva <denis7774@gmail.com>

dev-util/DirectXShaderCompiler/DirectXShaderCompiler-1.7.2212.ebuild

@@ -0,0 +1,66 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..11} )
+inherit cmake check-reqs python-any-r1
+
+DESCRIPTION="Microsoft DirectX Shader Compiler which is based on LLVM/Clang"
+HOMEPAGE="https://github.com/microsoft/DirectXShaderCompiler"
+# ToDo: unbundle spirv headers/tools
+SPIRV_HEADERS_COMMIT_MAGIC="0bcc624926a25a2a273d07877fd25a6ff5ba1cfb"
+SPIRV_TOOLS_COMMIT_MAGIC="71b2aee6c868a673ec82d1385f97593aa2881316"
+SRC_URI="https://github.com/microsoft/DirectXShaderCompiler/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz
+https://github.com/KhronosGroup/SPIRV-Headers/archive/${SPIRV_HEADERS_COMMIT_MAGIC}.tar.gz -> DirectXShaderCompiler-headers-${SPIRV_HEADERS_COMMIT_MAGIC}.tar.gz
+https://github.com/KhronosGroup/SPIRV-Tools/archive/${SPIRV_TOOLS_COMMIT_MAGIC}.tar.gz -> DirectXShaderCompiler-tools-${SPIRV_TOOLS_COMMIT_MAGIC}.tar.gz"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA BSD public-domain rc"
+SLOT="0"
+KEYWORDS=""
+IUSE=""
+
+DEPEND="${PYTHON_DEPS}
+	dev-util/directx-headers"
+RDEPEND="
+	sys-libs/zlib:0=
+	>=dev-libs/libffi-3.4.2-r1:0=
+"
+BDEPEND="dev-util/cmake
+	sys-devel/gnuconfig
+"
+
+CHECKREQS_MEMORY="4G"
+CHECKREQS_DISK_BUILD="4G"
+CMAKE_EXTRA_CACHE_FILE="${S}/cmake/caches/PredefinedParams.cmake"
+
+src_prepare() {
+	rm -d "${S}"/external/SPIRV*
+	mv "${WORKDIR}/SPIRV-Headers-${SPIRV_HEADERS_COMMIT_MAGIC}" "${S}/external/SPIRV-Headers" || die "can't move headers"
+	mv "${WORKDIR}/SPIRV-Tools-${SPIRV_TOOLS_COMMIT_MAGIC}" "${S}/external/SPIRV-Tools"|| die "can't move tools"
+	cmake_src_prepare
+}
+
+src_configure() {
+	local mycmakeargs=(
+		-Wno-dev
+		-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/dxc"
+		-DLLVM_BUILD_DOCS=0
+		-DLLVM_BUILD_TOOLS=0
+		-DSPIRV_BUILD_TESTS=0
+		-DLLVM_ENABLE_WERROR=0
+		-DSPIRV_WERROR=0
+		-DSPIRV_WARN_EVERYTHING=0
+		-DBUILD_SHARED_LIBS=OFF
+		-DLLVM_VERSION_SUFFIX=dxc
+	)
+	cmake_src_configure
+}
+src_install() {
+	cmake_src_install
+	cat > "99${PN}" <<-EOF
+		LDPATH="${EPREFIX}/usr/lib/llvm/dxc/lib"
+	EOF
+	doenvd "99${PN}"
+	dosym -r /usr/lib/llvm/dxc/bin/dxc /usr/bin/dxc
+}