[gentoo-commits] repo/gentoo:master commit in: dev-lang/rust/files/, dev-lang/rust/

["Georgy Yakovlev" <gyakovlev@gentoo.org>]

commit:     a330ceeccfb336df684cf52d33469b2b69055653
Author:     Georgy Yakovlev <gyakovlev <AT> gentoo <DOT> org>
AuthorDate: Thu Feb  9 20:35:28 2023 +0000
Commit:     Georgy Yakovlev <gyakovlev <AT> gentoo <DOT> org>
CommitDate: Thu Feb  9 20:35:28 2023 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=a330ceec

dev-lang/rust: drop 1.67.0

Signed-off-by: Georgy Yakovlev <gyakovlev <AT> gentoo.org>

 dev-lang/rust/Manifest                     |   2 -
 dev-lang/rust/files/1.67.0-bootstrap.patch |  38 --
 dev-lang/rust/rust-1.67.0.ebuild           | 742 -----------------------------
 3 files changed, 782 deletions(-)

diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index 9f1eafd22e3c..a1a5475671c3 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -98,7 +98,5 @@ DIST rustc-1.65.0-src.tar.xz 139674928 BLAKE2B a218263fb67e306b153f5a6dae95b5ec6
 DIST rustc-1.65.0-src.tar.xz.asc 801 BLAKE2B 43ff92011cd6f7f34ce0495fa341379e5907d032ea90f91e533e5edaec6ad518aad50a9d8b2694074d6909ee96aa779403b16e95792e962e79c1b967542ae26f SHA512 75b9be53363022c81333117876cbcc573bbd4733edf767cbb164218644efb1a9c4bfc2aa73aaa1e39f248a84f1adacb1930a94a6e63f60093ff760fb9ae02efc
 DIST rustc-1.66.1-src.tar.xz 141692940 BLAKE2B 3fae45345998386fda1b11ec896fac4613b8e3f0092bc0df29c9685f4a4012c0bd1b600911c2d19bcfa8f5a84b8a3c39d4c9e062a62cd61925b59129e1cd72b9 SHA512 1944c024c603140d0a9236043a3bd1d0d211dd8d368d6d82a3a620f1ff43b29624755b0943f2b38b40a188c7eee77a840238ea757eaf435e2a3fa6a0e6b82832
 DIST rustc-1.66.1-src.tar.xz.asc 801 BLAKE2B 18e27c88b39eed29147854733c5533b7fffc417ff0b3bd5982174ffa2c5f6d217e2e28ced4da75863a4557800e7ad7a124a4bbb0def4c20da7ed543602185941 SHA512 4511f41ad3d098a339ea3173e3ffa692d1d3cd3ec9dd45af68e4491471f9a72a2e866f6924090eb366bdf6f856650d981eabe1cd851843a17f4a6e4f1dfbc8a9
-DIST rustc-1.67.0-src.tar.xz 142750964 BLAKE2B 5dcea694548f5162bed6020ca12ecfa178fba479fbe6f29ec310f9c5cfaae13999de7b861498e92561f21001fed295d21dd9230ccb5da2f20c638309e785cfda SHA512 6d1ddb54c0ee2c4f8ccf73f3c306c8d8868feb738d5e77eb5a5d25f716395c27d1b3666929c87f9dc84213a9acfdb56254feac92ef0fea3147e2c644391c12b4
-DIST rustc-1.67.0-src.tar.xz.asc 801 BLAKE2B b46159b7cbe081cb34d82b2642397788d09d09f9e55fd961a491862c2c1827b0752530fa74e1a8245cab9ff898d2f021bfdae4820edca34a87c9e18202d7a31e SHA512 cceb0aa5d43c476a051c77263fe152085b8d7d337f78117077a1e460bb9e31b75becd36a8f571fc1275a268ac1107d680012a82a7378851d2a9f16748d95a929
 DIST rustc-1.67.1-src.tar.xz 142758844 BLAKE2B 55b2a98592b1a2e465b7fb224607cbcb23cb13d5053b51abbd2e45428794f457b6925955c5c562f577830353e5287929b3588ee78a30036bf0ca13a3610316d9 SHA512 42d77ee93b168ae139b026138fb48d925624ff436a836aa97ee235f870e61ea11643b0cf7ad20bcafda774c6cd3855a4bc10a2e2ed1c4d82c6f15158963b304d
 DIST rustc-1.67.1-src.tar.xz.asc 801 BLAKE2B eb507c6f53c592921eb31cccb17c9d6027c67fb1311726f2d25fe7d1f8a1aa051efb99d7207a5e4477df0b75898783437e653fa041ed7daa27e7a7c4263ec230 SHA512 6c962f680d74251b55f77a43d6e383be53bacff8428e0d003bda207de1fea7f716b88f16686d22a88d99518a4834bf299731855fb030477a995d5e1f3d0024f4

diff --git a/dev-lang/rust/files/1.67.0-bootstrap.patch b/dev-lang/rust/files/1.67.0-bootstrap.patch
deleted file mode 100644
index eb160661a2c2..000000000000
--- a/dev-lang/rust/files/1.67.0-bootstrap.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 675fa0b3dd5fe14b43ad5b7862f4528df7322468 Mon Sep 17 00:00:00 2001
-From: Michael Goulet <michael@errs.io>
-Date: Mon, 12 Dec 2022 18:29:33 +0000
-Subject: [PATCH] =?UTF-8?q?=F0=9F=9A=A8=20fix=20unsoundness=20in=20bootstr?=
- =?UTF-8?q?ap=20cache=20code?=
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
----
- src/bootstrap/cache.rs | 8 ++++----
- 1 file changed, 4 insertions(+), 4 deletions(-)
-
-diff --git a/src/bootstrap/cache.rs b/src/bootstrap/cache.rs
-index be5c9bb078808..05f25af68ea8f 100644
---- a/src/bootstrap/cache.rs
-+++ b/src/bootstrap/cache.rs
-@@ -89,16 +89,16 @@ impl<T: Internable + Hash> Hash for Interned<T> {
- 
- impl<T: Internable + Deref> Deref for Interned<T> {
-     type Target = T::Target;
--    fn deref(&self) -> &'static Self::Target {
-+    fn deref(&self) -> &Self::Target {
-         let l = T::intern_cache().lock().unwrap();
--        unsafe { mem::transmute::<&Self::Target, &'static Self::Target>(l.get(*self)) }
-+        unsafe { mem::transmute::<&Self::Target, &Self::Target>(l.get(*self)) }
-     }
- }
- 
- impl<T: Internable + AsRef<U>, U: ?Sized> AsRef<U> for Interned<T> {
--    fn as_ref(&self) -> &'static U {
-+    fn as_ref(&self) -> &U {
-         let l = T::intern_cache().lock().unwrap();
--        unsafe { mem::transmute::<&U, &'static U>(l.get(*self).as_ref()) }
-+        unsafe { mem::transmute::<&U, &U>(l.get(*self).as_ref()) }
-     }
- }
- 

diff --git a/dev-lang/rust/rust-1.67.0.ebuild b/dev-lang/rust/rust-1.67.0.ebuild
deleted file mode 100644
index 9cef9622f2b5..000000000000
--- a/dev-lang/rust/rust-1.67.0.ebuild
+++ /dev/null
@@ -1,742 +0,0 @@
-# Copyright 1999-2023 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-PYTHON_COMPAT=( python3_{9..11} )
-
-inherit bash-completion-r1 check-reqs estack flag-o-matic llvm multiprocessing \
-	multilib multilib-build python-any-r1 rust-toolchain toolchain-funcs verify-sig
-
-if [[ ${PV} = *beta* ]]; then
-	betaver=${PV//*beta}
-	BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}"
-	MY_P="rustc-beta"
-	SLOT="beta/${PV}"
-	SRC="${BETA_SNAPSHOT}/rustc-beta-src.tar.xz -> rustc-${PV}-src.tar.xz"
-else
-	ABI_VER="$(ver_cut 1-2)"
-	SLOT="stable/${ABI_VER}"
-	MY_P="rustc-${PV}"
-	SRC="${MY_P}-src.tar.xz"
-	KEYWORDS="~amd64 ~arm ~arm64 ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86"
-fi
-
-RUST_STAGE0_VERSION="1.$(($(ver_cut 2) - 1)).1"
-
-DESCRIPTION="Systems programming language from Mozilla"
-HOMEPAGE="https://www.rust-lang.org/"
-
-SRC_URI="
-	https://static.rust-lang.org/dist/${SRC}
-	verify-sig? ( https://static.rust-lang.org/dist/${SRC}.asc )
-	!system-bootstrap? ( $(rust_all_arch_uris rust-${RUST_STAGE0_VERSION}) )
-"
-
-# keep in sync with llvm ebuild of the same version as bundled one.
-ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM AVR BPF Hexagon Lanai Mips MSP430
-	NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore )
-ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
-LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
-
-LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4 UoI-NCSA"
-
-IUSE="clippy cpu_flags_x86_sse2 debug dist doc llvm-libunwind miri nightly parallel-compiler profiler rustfmt rust-analyzer rust-src system-bootstrap system-llvm test wasm ${ALL_LLVM_TARGETS[*]}"
-
-# Please keep the LLVM dependency block separate. Since LLVM is slotted,
-# we need to *really* make sure we're not pulling more than one slot
-# simultaneously.
-
-# How to use it:
-# List all the working slots in LLVM_VALID_SLOTS, newest first.
-LLVM_VALID_SLOTS=( 15 )
-LLVM_MAX_SLOT="${LLVM_VALID_SLOTS[0]}"
-
-# splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
-# (-) usedep needed because we may build with older llvm without that target
-LLVM_DEPEND="|| ( "
-for _s in ${LLVM_VALID_SLOTS[@]}; do
-	LLVM_DEPEND+=" ( "
-	for _x in ${ALL_LLVM_TARGETS[@]}; do
-		LLVM_DEPEND+="
-			${_x}? ( sys-devel/llvm:${_s}[${_x}(-)] )
-			wasm? ( sys-devel/lld:${_s} )"
-	done
-	LLVM_DEPEND+=" )"
-done
-unset _s _x
-LLVM_DEPEND+=" )
-	<sys-devel/llvm-$(( LLVM_MAX_SLOT + 1 )):=
-"
-
-# to bootstrap we need at least exactly previous version, or same.
-# most of the time previous versions fail to bootstrap with newer
-# for example 1.47.x, requires at least 1.46.x, 1.47.x is ok,
-# but it fails to bootstrap with 1.48.x
-# https://github.com/rust-lang/rust/blob/${PV}/src/stage0.json
-RUST_DEP_PREV="$(ver_cut 1).$(($(ver_cut 2) - 1))*"
-RUST_DEP_CURR="$(ver_cut 1).$(ver_cut 2)*"
-BOOTSTRAP_DEPEND="||
-	(
-		=dev-lang/rust-"${RUST_DEP_PREV}"
-		=dev-lang/rust-bin-"${RUST_DEP_PREV}"
-		=dev-lang/rust-"${RUST_DEP_CURR}"
-		=dev-lang/rust-bin-"${RUST_DEP_CURR}"
-	)
-"
-
-BDEPEND="${PYTHON_DEPS}
-	app-eselect/eselect-rust
-	|| (
-		>=sys-devel/gcc-4.7
-		>=sys-devel/clang-3.5
-	)
-	system-bootstrap? ( ${BOOTSTRAP_DEPEND} )
-	!system-llvm? (
-		>=dev-util/cmake-3.13.4
-		dev-util/ninja
-	)
-	test? ( sys-devel/gdb )
-	verify-sig? ( sec-keys/openpgp-keys-rust )
-"
-
-DEPEND="
-	>=app-arch/xz-utils-5.2
-	net-misc/curl:=[http2,ssl]
-	sys-libs/zlib:=
-	dev-libs/openssl:0=
-	system-llvm? (
-		${LLVM_DEPEND}
-		llvm-libunwind? ( sys-libs/llvm-libunwind:= )
-	)
-	!system-llvm? (
-		!llvm-libunwind? (
-			elibc_musl? ( sys-libs/libunwind:= )
-		)
-	)
-"
-
-RDEPEND="${DEPEND}
-	app-eselect/eselect-rust
-	sys-apps/lsb-release
-"
-
-REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )
-	miri? ( nightly )
-	parallel-compiler? ( nightly )
-	test? ( ${ALL_LLVM_TARGETS[*]} )
-	wasm? ( llvm_targets_WebAssembly )
-	x86? ( cpu_flags_x86_sse2 )
-"
-
-# we don't use cmake.eclass, but can get a warning
-CMAKE_WARN_UNUSED_CLI=no
-
-QA_FLAGS_IGNORED="
-	usr/lib/${PN}/${PV}/bin/.*
-	usr/lib/${PN}/${PV}/libexec/.*
-	usr/lib/${PN}/${PV}/lib/lib.*.so
-	usr/lib/${PN}/${PV}/lib/rustlib/.*/bin/.*
-	usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/lib.*.so
-"
-
-QA_SONAME="
-	usr/lib/${PN}/${PV}/lib/lib.*.so.*
-	usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/lib.*.so
-"
-
-QA_PRESTRIPPED="
-	usr/lib/${PN}/${PV}/lib/rustlib/.*/bin/rust-llvm-dwp
-	usr/lib/${PN}/${PV}/lib/rustlib/.*/lib/self-contained/crtn.o
-"
-
-# An rmeta file is custom binary format that contains the metadata for the crate.
-# rmeta files do not support linking, since they do not contain compiled object files.
-# so we can safely silence the warning for this QA check.
-QA_EXECSTACK="usr/lib/${PN}/${PV}/lib/rustlib/*/lib*.rlib:lib.rmeta"
-
-# causes double bootstrap
-RESTRICT="test"
-
-VERIFY_SIG_OPENPGP_KEY_PATH=${BROOT}/usr/share/openpgp-keys/rust.asc
-
-PATCHES=(
-	"${FILESDIR}"/1.65.0-ignore-broken-and-non-applicable-tests.patch
-	"${FILESDIR}"/1.62.1-musl-dynamic-linking.patch
-	"${FILESDIR}"/1.67.0-bootstrap.patch
-	"${FILESDIR}"/1.67.0-doc-wasm.patch
-)
-
-S="${WORKDIR}/${MY_P}-src"
-
-toml_usex() {
-	usex "${1}" true false
-}
-
-bootstrap_rust_version_check() {
-	# never call from pkg_pretend. eselect-rust may be not installed yet.
-	[[ ${MERGE_TYPE} == binary ]] && return
-	local rustc_wanted="$(ver_cut 1).$(($(ver_cut 2) - 1))"
-	local rustc_toonew="$(ver_cut 1).$(($(ver_cut 2) + 1))"
-	local rustc_version=( $(eselect --brief rust show 2>/dev/null) )
-	rustc_version=${rustc_version[0]#rust-bin-}
-	rustc_version=${rustc_version#rust-}
-
-	[[ -z "${rustc_version}" ]] && die "Failed to determine rust version, check 'eselect rust' output"
-
-	if ver_test "${rustc_version}" -lt "${rustc_wanted}" ; then
-		eerror "Rust >=${rustc_wanted} is required"
-		eerror "please run 'eselect rust' and set correct rust version"
-		die "selected rust version is too old"
-	elif ver_test "${rustc_version}" -ge "${rustc_toonew}" ; then
-		eerror "Rust <${rustc_toonew} is required"
-		eerror "please run 'eselect rust' and set correct rust version"
-		die "selected rust version is too new"
-	else
-		einfo "Using rust ${rustc_version} to build"
-	fi
-}
-
-pre_build_checks() {
-	local M=8192
-	# multiply requirements by 1.3 if we are doing x86-multilib
-	if use amd64; then
-		M=$(( $(usex abi_x86_32 13 10) * ${M} / 10 ))
-	fi
-	M=$(( $(usex clippy 128 0) + ${M} ))
-	M=$(( $(usex miri 128 0) + ${M} ))
-	M=$(( $(usex rustfmt 256 0) + ${M} ))
-	# add 2G if we compile llvm and 256M per llvm_target
-	if ! use system-llvm; then
-		M=$(( 2048 + ${M} ))
-		local ltarget
-		for ltarget in ${ALL_LLVM_TARGETS[@]}; do
-			M=$(( $(usex ${ltarget} 256 0) + ${M} ))
-		done
-	fi
-	M=$(( $(usex wasm 256 0) + ${M} ))
-	M=$(( $(usex debug 2 1) * ${M} ))
-	eshopts_push -s extglob
-	if is-flagq '-g?(gdb)?([1-9])'; then
-		M=$(( 15 * ${M} / 10 ))
-	fi
-	eshopts_pop
-	M=$(( $(usex system-bootstrap 0 1024) + ${M} ))
-	M=$(( $(usex doc 256 0) + ${M} ))
-	CHECKREQS_DISK_BUILD=${M}M check-reqs_pkg_${EBUILD_PHASE}
-}
-
-llvm_check_deps() {
-	has_version -r "sys-devel/llvm:${LLVM_SLOT}[${LLVM_TARGET_USEDEPS// /,}]"
-}
-
-# Is LLVM being linked against libc++?
-is_libcxx_linked() {
-	local code='#include <ciso646>
-#if defined(_LIBCPP_VERSION)
-	HAVE_LIBCXX
-#endif
-'
-	local out=$($(tc-getCXX) ${CXXFLAGS} ${CPPFLAGS} -x c++ -E -P - <<<"${code}") || return 1
-	[[ ${out} == *HAVE_LIBCXX* ]]
-}
-
-pkg_pretend() {
-	pre_build_checks
-}
-
-pkg_setup() {
-	pre_build_checks
-	python-any-r1_pkg_setup
-
-	export LIBGIT2_NO_PKG_CONFIG=1 #749381
-
-	use system-bootstrap && bootstrap_rust_version_check
-
-	if use system-llvm; then
-		llvm_pkg_setup
-
-		local llvm_config="$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config"
-		export LLVM_LINK_SHARED=1
-		export RUSTFLAGS="${RUSTFLAGS} -Lnative=$("${llvm_config}" --libdir)"
-	fi
-}
-
-esetup_unwind_hack() {
-	# https://bugs.gentoo.org/870280
-	# this is a hack needed to bootstrap with libgcc_s linked tarball on llvm-libunwind system.
-	# it should trigger for internal bootstrap or system-bootstrap with rust-bin.
-	# the whole idea is for stage0 to bootstrap with fake libgcc_s.
-	# final stage will receive -L${T}/lib but not -lgcc_s args, producing clean compiler.
-	local fakelib="${T}/fakelib"
-	mkdir -p "${fakelib}" || die
-	# we need both symlinks, one for cargo runtime, other for linker.
-	ln -s "${ESYSROOT}/usr/lib/libunwind.so" "${fakelib}/libgcc_s.so.1" || die
-	ln -s "${ESYSROOT}/usr/lib/libunwind.so" "${fakelib}/libgcc_s.so" || die
-	export LD_LIBRARY_PATH="${fakelib}"
-	export RUSTFLAGS+=" -L${fakelib}"
-	# this is a literally magic variable that gets through cargo cache, without it some
-	# crates ignore RUSTFLAGS.
-	# this variable can not contain leading space.
-	export MAGIC_EXTRA_RUSTFLAGS+="${MAGIC_EXTRA_RUSTFLAGS:+ }-L${fakelib}"
-}
-
-src_prepare() {
-	if ! use system-bootstrap; then
-		has_version sys-devel/gcc || esetup_unwind_hack
-		local rust_stage0_root="${WORKDIR}"/rust-stage0
-		local rust_stage0="rust-${RUST_STAGE0_VERSION}-$(rust_abi)"
-
-		"${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig \
-			--without=rust-docs-json-preview,rust-docs --destdir="${rust_stage0_root}" --prefix=/ || die
-	fi
-
-	default
-}
-
-src_configure() {
-	filter-flags '-flto*' # https://bugs.gentoo.org/862109 https://bugs.gentoo.org/866231
-
-	local rust_target="" rust_targets="" arch_cflags
-
-	# Collect rust target names to compile standard libs for all ABIs.
-	for v in $(multilib_get_enabled_abi_pairs); do
-		rust_targets+=",\"$(rust_abi $(get_abi_CHOST ${v##*.}))\""
-	done
-	if use wasm; then
-		rust_targets+=",\"wasm32-unknown-unknown\""
-		if use system-llvm; then
-			# un-hardcode rust-lld linker for this target
-			# https://bugs.gentoo.org/715348
-			sed -i '/linker:/ s/rust-lld/wasm-ld/' compiler/rustc_target/src/spec/wasm_base.rs || die
-		fi
-	fi
-	rust_targets="${rust_targets#,}"
-
-	local tools='"cargo"'
-	use clippy && tools+=',"clippy"'
-	use miri && tools+=',"miri"'
-	use profiler && tools+=',"rust-demangler"'
-	use rustfmt && tools+=',"rustfmt"'
-	use rust-analyzer && tools+=',"rust-analyzer","analysis"'
-	use rust-src && tools+=',"src"'
-
-	local rust_stage0_root
-	if use system-bootstrap; then
-		local printsysroot
-		printsysroot="$(rustc --print sysroot || die "Can't determine rust's sysroot")"
-		rust_stage0_root="${printsysroot}"
-	else
-		rust_stage0_root="${WORKDIR}"/rust-stage0
-	fi
-	# in case of prefix it will be already prefixed, as --print sysroot returns full path
-	[[ -d ${rust_stage0_root} ]] || die "${rust_stage0_root} is not a directory"
-
-	rust_target="$(rust_abi)"
-
-	local cm_btype="$(usex debug DEBUG RELEASE)"
-	cat <<- _EOF_ > "${S}"/config.toml
-		changelog-seen = 2
-		[llvm]
-		download-ci-llvm = false
-		optimize = $(toml_usex !debug)
-		release-debuginfo = $(toml_usex debug)
-		assertions = $(toml_usex debug)
-		ninja = true
-		targets = "${LLVM_TARGETS// /;}"
-		experimental-targets = ""
-		link-shared = $(toml_usex system-llvm)
-		$(if is_libcxx_linked; then
-			# https://bugs.gentoo.org/732632
-			echo "use-libcxx = true"
-			echo "static-libstdcpp = false"
-		fi)
-		$(case "${rust_target}" in
-			i586-*-linux-*)
-				# https://github.com/rust-lang/rust/issues/93059
-				echo 'cflags = "-fcf-protection=none"'
-				echo 'cxxflags = "-fcf-protection=none"'
-				echo 'ldflags = "-fcf-protection=none"'
-				;;
-			*)
-				;;
-		esac)
-		[llvm.build-config]
-		CMAKE_VERBOSE_MAKEFILE = "ON"
-		CMAKE_C_FLAGS_${cm_btype} = "${CFLAGS}"
-		CMAKE_CXX_FLAGS_${cm_btype} = "${CXXFLAGS}"
-		CMAKE_EXE_LINKER_FLAGS_${cm_btype} = "${LDFLAGS}"
-		CMAKE_MODULE_LINKER_FLAGS_${cm_btype} = "${LDFLAGS}"
-		CMAKE_SHARED_LINKER_FLAGS_${cm_btype} = "${LDFLAGS}"
-		CMAKE_STATIC_LINKER_FLAGS_${cm_btype} = "${ARFLAGS}"
-		[build]
-		build-stage = 2
-		test-stage = 2
-		build = "${rust_target}"
-		host = ["${rust_target}"]
-		target = [${rust_targets}]
-		cargo = "${rust_stage0_root}/bin/cargo"
-		rustc = "${rust_stage0_root}/bin/rustc"
-		rustfmt = "${rust_stage0_root}/bin/rustfmt"
-		docs = $(toml_usex doc)
-		compiler-docs = false
-		submodules = false
-		python = "${EPYTHON}"
-		locked-deps = true
-		vendor = true
-		extended = true
-		tools = [${tools}]
-		verbose = 2
-		sanitizers = false
-		profiler = $(toml_usex profiler)
-		cargo-native-static = false
-		[install]
-		prefix = "${EPREFIX}/usr/lib/${PN}/${PV}"
-		sysconfdir = "etc"
-		docdir = "share/doc/rust"
-		bindir = "bin"
-		libdir = "lib"
-		mandir = "share/man"
-		[rust]
-		# https://github.com/rust-lang/rust/issues/54872
-		codegen-units-std = 1
-		optimize = true
-		debug = $(toml_usex debug)
-		debug-assertions = $(toml_usex debug)
-		debug-assertions-std = $(toml_usex debug)
-		debuginfo-level = $(usex debug 2 0)
-		debuginfo-level-rustc = $(usex debug 2 0)
-		debuginfo-level-std = $(usex debug 2 0)
-		debuginfo-level-tools = $(usex debug 2 0)
-		debuginfo-level-tests = 0
-		backtrace = true
-		incremental = false
-		default-linker = "$(tc-getCC)"
-		parallel-compiler = $(toml_usex parallel-compiler)
-		channel = "$(usex nightly nightly stable)"
-		description = "gentoo"
-		rpath = false
-		verbose-tests = true
-		optimize-tests = $(toml_usex !debug)
-		codegen-tests = true
-		dist-src = false
-		remap-debuginfo = true
-		lld = $(usex system-llvm false $(toml_usex wasm))
-		# only deny warnings if doc+wasm are NOT requested, documenting stage0 wasm std fails without it
-		# https://github.com/rust-lang/rust/issues/74976
-		# https://github.com/rust-lang/rust/issues/76526
-		deny-warnings = $(usex wasm $(usex doc false true) true)
-		backtrace-on-ice = true
-		jemalloc = false
-		[dist]
-		src-tarball = false
-		compression-formats = ["xz"]
-	_EOF_
-
-	for v in $(multilib_get_enabled_abi_pairs); do
-		rust_target=$(rust_abi $(get_abi_CHOST ${v##*.}))
-		arch_cflags="$(get_abi_CFLAGS ${v##*.})"
-
-		export CFLAGS_${rust_target//-/_}="${arch_cflags}"
-
-		cat <<- _EOF_ >> "${S}"/config.toml
-			[target.${rust_target}]
-			ar = "$(tc-getAR)"
-			cc = "$(tc-getCC)"
-			cxx = "$(tc-getCXX)"
-			linker = "$(tc-getCC)"
-			ranlib = "$(tc-getRANLIB)"
-			llvm-libunwind = "$(usex llvm-libunwind $(usex system-llvm system in-tree) no)"
-		_EOF_
-		if use system-llvm; then
-			cat <<- _EOF_ >> "${S}"/config.toml
-				llvm-config = "$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config"
-			_EOF_
-		fi
-		# by default librustc_target/spec/linux_musl_base.rs sets base.crt_static_default = true;
-		# but we patch it and set to false here as well
-		if use elibc_musl; then
-			cat <<- _EOF_ >> "${S}"/config.toml
-				crt-static = false
-			_EOF_
-		fi
-	done
-	if use wasm; then
-		cat <<- _EOF_ >> "${S}"/config.toml
-			[target.wasm32-unknown-unknown]
-			linker = "$(usex system-llvm lld rust-lld)"
-			# wasm target does not have profiler_builtins https://bugs.gentoo.org/848483
-			profiler = false
-		_EOF_
-	fi
-
-	if [[ -n ${I_KNOW_WHAT_I_AM_DOING_CROSS} ]]; then # whitespace intentionally shifted below
-	# experimental cross support
-	# discussion: https://bugs.gentoo.org/679878
-	# TODO: c*flags, clang, system-llvm, cargo.eclass target support
-	# it would be much better if we could split out stdlib
-	# complilation to separate ebuild and abuse CATEGORY to
-	# just install to /usr/lib/rustlib/<target>
-
-	# extra targets defined as a bash array
-	# spec format:  <LLVM target>:<rust-target>:<CTARGET>
-	# best place would be /etc/portage/env/dev-lang/rust
-	# Example:
-	# RUST_CROSS_TARGETS=(
-	#	"AArch64:aarch64-unknown-linux-gnu:aarch64-unknown-linux-gnu"
-	# )
-	# no extra hand holding is done, no target transformations, all
-	# values are passed as-is with just basic checks, so it's up to user to supply correct values
-	# valid rust targets can be obtained with
-	# 	rustc --print target-list
-	# matching cross toolchain has to be installed
-	# matching LLVM_TARGET has to be enabled for both rust and llvm (if using system one)
-	# only gcc toolchains installed with crossdev are checked for now.
-
-	# BUG: we can't pass host flags to cross compiler, so just filter for now
-	# BUG: this should be more fine-grained.
-	filter-flags '-mcpu=*' '-march=*' '-mtune=*'
-
-	local cross_target_spec
-	for cross_target_spec in "${RUST_CROSS_TARGETS[@]}";do
-		# extracts first element form <LLVM target>:<rust-target>:<CTARGET>
-		local cross_llvm_target="${cross_target_spec%%:*}"
-		# extracts toolchain triples, <rust-target>:<CTARGET>
-		local cross_triples="${cross_target_spec#*:}"
-		# extracts first element after before : separator
-		local cross_rust_target="${cross_triples%%:*}"
-		# extracts last element after : separator
-		local cross_toolchain="${cross_triples##*:}"
-		use llvm_targets_${cross_llvm_target} || die "need llvm_targets_${cross_llvm_target} target enabled"
-		command -v ${cross_toolchain}-gcc > /dev/null 2>&1 || die "need ${cross_toolchain} cross toolchain"
-
-		cat <<- _EOF_ >> "${S}"/config.toml
-			[target.${cross_rust_target}]
-			ar = "${cross_toolchain}-ar"
-			cc = "${cross_toolchain}-gcc"
-			cxx = "${cross_toolchain}-g++"
-			linker = "${cross_toolchain}-gcc"
-			ranlib = "${cross_toolchain}-ranlib"
-		_EOF_
-		if use system-llvm; then
-			cat <<- _EOF_ >> "${S}"/config.toml
-				llvm-config = "$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config"
-			_EOF_
-		fi
-		if [[ "${cross_toolchain}" == *-musl* ]]; then
-			cat <<- _EOF_ >> "${S}"/config.toml
-				musl-root = "$(${cross_toolchain}-gcc -print-sysroot)/usr"
-			_EOF_
-		fi
-
-		# append cross target to "normal" target list
-		# example 'target = ["powerpc64le-unknown-linux-gnu"]'
-		# becomes 'target = ["powerpc64le-unknown-linux-gnu","aarch64-unknown-linux-gnu"]'
-
-		rust_targets="${rust_targets},\"${cross_rust_target}\""
-		sed -i "/^target = \[/ s#\[.*\]#\[${rust_targets}\]#" config.toml || die
-
-		ewarn
-		ewarn "Enabled ${cross_rust_target} rust target"
-		ewarn "Using ${cross_toolchain} cross toolchain"
-		ewarn
-		if ! has_version -b 'sys-devel/binutils[multitarget]' ; then
-			ewarn "'sys-devel/binutils[multitarget]' is not installed"
-			ewarn "'strip' will be unable to strip cross libraries"
-			ewarn "cross targets will be installed with full debug information"
-			ewarn "enable 'multitarget' USE flag for binutils to be able to strip object files"
-			ewarn
-			ewarn "Alternatively llvm-strip can be used, it supports stripping any target"
-			ewarn "define STRIP=\"llvm-strip\" to use it (experimental)"
-			ewarn
-		fi
-	done
-	fi # I_KNOW_WHAT_I_AM_DOING_CROSS
-
-	einfo "Rust configured with the following flags:"
-	echo
-	echo RUSTFLAGS="\"${RUSTFLAGS}\""
-	echo RUSTFLAGS_BOOTSTRAP="\"${RUSTFLAGS_BOOTSTRAP}\""
-	echo RUSTFLAGS_NOT_BOOTSTRAP="\"${RUSTFLAGS_NOT_BOOTSTRAP}\""
-	echo MAGIC_EXTRA_RUSTFLAGS="\"${MAGIC_EXTRA_RUSTFLAGS}\""
-	env | grep "CARGO_TARGET_.*_RUSTFLAGS="
-	env | grep "CFLAGS_.*"
-	echo
-	einfo "config.toml contents:"
-	cat "${S}"/config.toml || die
-	echo
-}
-
-src_compile() {
-	RUST_BACKTRACE=1 "${EPYTHON}" ./x.py build -vv --config="${S}"/config.toml -j$(makeopts_jobs) || die
-}
-
-src_test() {
-	# https://rustc-dev-guide.rust-lang.org/tests/intro.html
-
-	# those are basic and codegen tests.
-	local tests=(
-		codegen
-		codegen-units
-		compile-fail
-		incremental
-		mir-opt
-		pretty
-		run-make
-	)
-
-	# fails if llvm is not built with ALL targets.
-	# and known to fail with system llvm sometimes.
-	use system-llvm || tests+=( assembly )
-
-	# fragile/expensive/less important tests
-	# or tests that require extra builds
-	# TODO: instead of skipping, just make some nonfatal.
-	if [[ ${ERUST_RUN_EXTRA_TESTS:-no} != no ]]; then
-		tests+=(
-			rustdoc
-			rustdoc-js
-			rustdoc-js-std
-			rustdoc-ui
-			run-make-fulldeps
-			ui
-			ui-fulldeps
-		)
-	fi
-
-	local i failed=()
-	einfo "rust_src_test: enabled tests ${tests[@]/#/src/test/}"
-	for i in "${tests[@]}"; do
-		local t="src/test/${i}"
-		einfo "rust_src_test: running ${t}"
-		if ! RUST_BACKTRACE=1 "${EPYTHON}" ./x.py test -vv --config="${S}"/config.toml \
-				-j$(makeopts_jobs) --no-doc --no-fail-fast "${t}"
-		then
-				failed+=( "${t}" )
-				eerror "rust_src_test: ${t} failed"
-		fi
-	done
-
-	if [[ ${#failed[@]} -ne 0 ]]; then
-		eerror "rust_src_test: failure summary: ${failed[@]}"
-		die "aborting due to test failures"
-	fi
-}
-
-src_install() {
-	DESTDIR="${D}" "${EPYTHON}" ./x.py install -vv --config="${S}"/config.toml -j$(makeopts_jobs) || die
-
-	# bug #689562, #689160
-	rm -v "${ED}/usr/lib/${PN}/${PV}/etc/bash_completion.d/cargo" || die
-	rmdir -v "${ED}/usr/lib/${PN}/${PV}"/etc{/bash_completion.d,} || die
-	newbashcomp src/tools/cargo/src/etc/cargo.bashcomp.sh cargo
-
-	local symlinks=(
-		cargo
-		rustc
-		rustdoc
-		rust-gdb
-		rust-gdbgui
-		rust-lldb
-	)
-
-	use clippy && symlinks+=( clippy-driver cargo-clippy )
-	use miri && symlinks+=( miri cargo-miri )
-	use profiler && symlinks+=( rust-demangler )
-	use rustfmt && symlinks+=( rustfmt cargo-fmt )
-	use rust-analyzer && symlinks+=( rust-analyzer )
-
-	einfo "installing eselect-rust symlinks and paths: ${symlinks[@]}"
-	local i
-	for i in "${symlinks[@]}"; do
-		# we need realpath on /usr/bin/* symlink return version-appended binary path.
-		# so /usr/bin/rustc should point to /usr/lib/rust/<ver>/bin/rustc-<ver>
-		# need to fix eselect-rust to remove this hack.
-		local ver_i="${i}-${PV}"
-		if [[ -f "${ED}/usr/lib/${PN}/${PV}/bin/${i}" ]]; then
-			einfo "Installing ${i} symlink"
-			ln -v "${ED}/usr/lib/${PN}/${PV}/bin/${i}" "${ED}/usr/lib/${PN}/${PV}/bin/${ver_i}" || die
-		else
-			ewarn "${i} symlink requested, but source file not found"
-			ewarn "please report this"
-		fi
-		dosym "../lib/${PN}/${PV}/bin/${ver_i}" "/usr/bin/${ver_i}"
-	done
-
-	# symlinks to switch components to active rust in eselect
-	dosym "${PV}/lib" "/usr/lib/${PN}/lib-${PV}"
-	dosym "${PV}/libexec" "/usr/lib/${PN}/libexec-${PV}"
-	dosym "${PV}/share/man" "/usr/lib/${PN}/man-${PV}"
-	dosym "rust/${PV}/lib/rustlib" "/usr/lib/rustlib-${PV}"
-	dosym "../../lib/${PN}/${PV}/share/doc/rust" "/usr/share/doc/${P}"
-
-	newenvd - "50${P}" <<-_EOF_
-		LDPATH="${EPREFIX}/usr/lib/rust/lib"
-		MANPATH="${EPREFIX}/usr/lib/rust/man"
-	_EOF_
-
-	rm -rf "${ED}/usr/lib/${PN}/${PV}"/*.old || die
-	rm -rf "${ED}/usr/lib/${PN}/${PV}/doc"/*.old || die
-
-	# note: eselect-rust adds EROOT to all paths below
-	cat <<-_EOF_ > "${T}/provider-${P}"
-		/usr/bin/cargo
-		/usr/bin/rustdoc
-		/usr/bin/rust-gdb
-		/usr/bin/rust-gdbgui
-		/usr/bin/rust-lldb
-		/usr/lib/rustlib
-		/usr/lib/rust/lib
-		/usr/lib/rust/libexec
-		/usr/lib/rust/man
-		/usr/share/doc/rust
-	_EOF_
-
-	if use clippy; then
-		echo /usr/bin/clippy-driver >> "${T}/provider-${P}"
-		echo /usr/bin/cargo-clippy >> "${T}/provider-${P}"
-	fi
-	if use miri; then
-		echo /usr/bin/miri >> "${T}/provider-${P}"
-		echo /usr/bin/cargo-miri >> "${T}/provider-${P}"
-	fi
-	if use profiler; then
-		echo /usr/bin/rust-demangler >> "${T}/provider-${P}"
-	fi
-	if use rustfmt; then
-		echo /usr/bin/rustfmt >> "${T}/provider-${P}"
-		echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
-	fi
-	if use rust-analyzer; then
-		echo /usr/bin/rust-analyzer >> "${T}/provider-${P}"
-	fi
-
-	insinto /etc/env.d/rust
-	doins "${T}/provider-${P}"
-
-	if use dist; then
-		insinto "/usr/lib/${PN}/${PV}/dist"
-		doins -r "${S}/build/dist/."
-	fi
-}
-
-pkg_postinst() {
-	eselect rust update
-
-	if has_version sys-devel/gdb || has_version dev-util/lldb; then
-		elog "Rust installs a helper script for calling GDB and LLDB,"
-		elog "for your convenience it is installed under /usr/bin/rust-{gdb,lldb}-${PV}."
-	fi
-
-	if has_version app-editors/emacs; then
-		elog "install app-emacs/rust-mode to get emacs support for rust."
-	fi
-
-	if has_version app-editors/gvim || has_version app-editors/vim; then
-		elog "install app-vim/rust-vim to get vim support for rust."
-	fi
-}
-
-pkg_postrm() {
-	eselect rust cleanup
-}