dev-lang/rust: bump to 1.40.0

Package-Manager: Portage-2.3.79, Repoman-2.3.16
Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>

2 files changed, 343 insertions, 0 deletions

diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index 55d664fe155f..6db69467871b 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -76,9 +76,23 @@ DIST rust-1.38.0-powerpc64-unknown-linux-gnu.tar.xz 240082008 BLAKE2B d15d508397
 DIST rust-1.38.0-powerpc64le-unknown-linux-gnu.tar.xz 244407488 BLAKE2B 79ca67230dc4d16518421f08554bbc0093f2423469426d1f6f0a925a7bd01b059875ce1a1af29a516dd1cff745524702a8f37e8cb9b43398a32eb78a55e0c3ca SHA512 5f3e1dd233ef17d8a296dcb55738fa119e40c32b154a7575f149bf1475b64e34f7e805f206b9862dc6499be470f179290d8abb7ad8d2b5cb355cef03d95ae374
 DIST rust-1.38.0-s390x-unknown-linux-gnu.tar.xz 291685528 BLAKE2B 1d7678b68c5296fed276eb10a07ffd906cfe569b93b6872872c8aae10fa6f30f0ef4023e55256ee8d2e9f6935fc3391421f0f7758aaad60a0dac15b34074fcbc SHA512 7af64849236e0173d2aea723f3462682fde7d2e1e04d61c28d215163415e1b15cfb8cac57010ce55bdd928ea74076506ef50376d7550999e0fb00f9d20c4f5ff
 DIST rust-1.38.0-x86_64-unknown-linux-gnu.tar.xz 279859784 BLAKE2B 40dab0ac1e800d7c095052800505220019154d40741d7c8872932948d5df62863fe9d1e43596a43411e959c2ddc4fb8d9b4e74525aa1a35352efec781054fc37 SHA512 0b25c3049a7a213e9151c898979ec9b5b45e46a9072f9853d8f048cf401ef7ac343526d6919e68607a490e3e7bd0375b12ed9fb253caed26bb60f46473d3699b
+DIST rust-1.39.0-aarch64-unknown-linux-gnu.tar.xz 238165960 BLAKE2B c3e14a7b57d904d0882cb224e2390087cca5a3b4a6246e52e6d064c554721efe7b5542e694a3b6d2115f9914214a94200e0ff31008a5c8df1448b667b0fdb34e SHA512 ad37a8454acb8985a5c2b42d7f8bc4212651a16fb5af6b4314dd97faa47de79893f2f74b516af89cd7e77ef3db64247c4764585eb0a17ac328c9cba5e5b9c407
+DIST rust-1.39.0-arm-unknown-linux-gnueabi.tar.xz 244091604 BLAKE2B 9d09dbd18cfdad062705ee3c1726cee7d4c25dd9a739be451e1bcbd7e6d36316a113f93c0f8309bec3a825435d6245d195fd5da7b35fb51f2cf61f6f638c415d SHA512 1d51d47650cf11bf16b21df0b759de9ae23d96d4b14b5107f062bd240d02d5793542efbf0feaa09403cd35ca38af3e85f1abbd5083b645d40cdb1189d02a8099
+DIST rust-1.39.0-arm-unknown-linux-gnueabihf.tar.xz 244501036 BLAKE2B a6ea74a0249e9c7509e21d20b9c04e59af93f78dde92557b6d449fb51776fb6e31d5baa19419547d9baf10768423642a0489c828c5919c055981876ef2282603 SHA512 291d9963f67708b5b14f1f27bb9e7d374fcd7a5d24d932db02203aaf89d06db8178305eb18e4dcd56cce81dc5eb80d2fb019ca94a99c06b548f0588ae560b7ac
+DIST rust-1.39.0-armv7-unknown-linux-gnueabihf.tar.xz 246114456 BLAKE2B e412273d164fae3f7c1702601a4f518b15acdd8f75746de7fa0af63a67a7873ce27b7e5bdf9d1354508ca0b0d20705dfd26659c6355a12c6a2cc59ad8d2a2a2a SHA512 db2b001a5587e2d5c8cdcb53c974f2332e76f58e362cba55fc971d7244754f1fa0b7e708ad7e73e7250652b442f06929dc1e8981536d7d76850b45ade275d406
+DIST rust-1.39.0-i686-unknown-linux-gnu.tar.xz 297665804 BLAKE2B 0024993e80174c0dd71c5f781ea466690fb18e3b760b11382613cad10e6112122d90c54b2a7451c049711c13e0f3da979bf8e8d2e79723e7a484352303bf0337 SHA512 930546e79c0b1105eb0604ae33ccdbd8b00b56e56d069f19f0d802093a052fd3f940eaf1390cdecd79833b0c70457ebfee2ce3b9674fff72df1367076584394a
+DIST rust-1.39.0-mips-unknown-linux-gnu.tar.xz 242857808 BLAKE2B a2484913ce31ebae0be04f13dd24972a34206b00d5e141f3c5f8e43ab852547b149bc1002053276557d3dd18d231c2772d5817137fd7f615f155c742f0379af8 SHA512 ab9862a55fe0550c4d19c8fe4fa912661594b56f5f05b21c3ee660734a2d119b5b2dc70b9606af2ba91bd2911fe84c847480a828fb3f0a9d30132a70514d26d7
+DIST rust-1.39.0-mips64-unknown-linux-gnuabi64.tar.xz 238468588 BLAKE2B bb48de21d7a45ebb2464159b09974530572e08cf7adfee4d90b5280ed49867a591f9d3e21069868fecc14242649a9d68041baf07d9fb6c40ef8b3780ed8ab70f SHA512 93531394a9a8ed5edf3853f0d5c8faa795982e9c6a5a0a92832c2809c8baade736eafb8c0626ba6e543b05f693753c256b1d6290d5c41162d6129168ef1b5702
+DIST rust-1.39.0-mipsel-unknown-linux-gnu.tar.xz 246030532 BLAKE2B bfece8ee21b8bf0df389331ebbde98dc81810e4fb4c82e21c7fe2a85dcc27465f9a49e599bfdedf99a15cf479ff6c5baf27cc36e77afc90f281ac535ac0a92e0 SHA512 74536b1a1ce15f27ab8a1be7c9a7edb0638edf862c8f1464c98942287da1e7d64abec83be21634ddba2e88c0f9cf1456c000adc4360712aeab214ad87a44c9a7
+DIST rust-1.39.0-powerpc-unknown-linux-gnu.tar.xz 240597272 BLAKE2B a338ed495504d7aa290cfff3af37acc846b066921d0b84ae552ac4c127d24c645290098a711d3f2d17bf2a20f24356f24d67ece5aea7582dcc8a74cb6533209c SHA512 fa4ee683655d96c7ee1df12a39d50b1486c1e34cf4f10c09c6eecfb33b6f67b526dbcd02e1846d3e16db7103c04ee7f388a419ccfdf68ccc908b511b1fb8b7bd
+DIST rust-1.39.0-powerpc64-unknown-linux-gnu.tar.xz 242170220 BLAKE2B 3a5ec3b57c3611efb97f4f849cea3519f0bf4f0dd92d135b82603b10d0f1fe3b2832194ee989e38134c75a9c98a1402fc14382d4976d4f34680fbbba8de279cf SHA512 ff99ad6b120631346af8afac092f8b620e50fb8e118ef1e0ff5668103c01f4b9f082fae72e31a767be35d0647fd9fecc7e6b7b215bb1906e06b20bf3e2685619
+DIST rust-1.39.0-powerpc64le-unknown-linux-gnu.tar.xz 247026740 BLAKE2B 90269aa78eded26c7d54c2e38a08af5f2a5cc3bfb86c268a12050315ba48f232f324b1fcc8e4abae49489cfd9df83edf6d04424ba14fb77f15daea1f6b5c242e SHA512 e15585150370514e580e171faa749218aeef04ce0493f5ad3928a0cb6cd0bddbf7c75ba8ed0783a2c954bbd7166e0445b4c33be4ab48479b0104f032b3d4b0af
+DIST rust-1.39.0-s390x-unknown-linux-gnu.tar.xz 298119784 BLAKE2B 82f64163929c129e2aaee8909401c4f302496f63f8d9d366d6f7460b4546d7657ea38bcd864ecd0f58a5995e47f7f5890e4523dcbcbc51e3bf4085536b07de5f SHA512 d2b588f802d4fbe153dbd88cb745d34d1f5434cb3134cc9e091ebfb336a48b4c886cd80311cf92b5e1c6a16374302853a67e8a0576b02a89dbcf61d27919a045
+DIST rust-1.39.0-x86_64-unknown-linux-gnu.tar.xz 284967620 BLAKE2B c5d2c2a11c4f66105ece51e7ca45ca6a9e0d70215f94ce52f6e61b20995ceb611e45bad1e5e9f33fd444bb0a58a2edb691f1a65a1caf36ad892c034e00104383 SHA512 02ca6c821877379d8bd0bcc38281a87e6f86bdbae1270da19e41336cc3a812d9c11c1e976655c192c39153f92cda90ddbd7b4b0bcb4f6787d6d354d2be827a8a
 DIST rustc-1.34.2-src.tar.xz 95048792 BLAKE2B e81e4bfda87ddfb09ab8a74792346970aa440c678d2bb1279c329db4929282f761ada6fea9d81ceeecfd513613025c8e636487626fc36bd0b33559e045bb1b15 SHA512 f1bd2b226d90aae8a4657e6117b9a8451d4ce8129f79cc0fce0da7613a3b7800e690bc0ede8fec20a2f5f32c13fa8e22ac97d3838e0d36936793535a75d9c381
 DIST rustc-1.35.0-src.tar.xz 96543548 BLAKE2B 0291152f2b7aa8b50b22d74afbd9c7654bab8ae7dcb76224dbff43bc39a3b918ff86bfd20f408a9a16da8b20b08d9f0289bb63620f093d25d9fa008de57f52c3 SHA512 477c10b780bd54776be7ecbda0ab970416253e4a87c3e701825a7d07bcbcd91601b8e61129c5d04d4259e89c2e81e87cdbdee853375a8de5c9cf8372be2c9129
 DIST rustc-1.36.0-src.tar.xz 98707920 BLAKE2B caff82482589941ab63be51eeffdf2a0419c1b624485240a0547b4bebc9f64f6c65a4babb960d1b23b3cde76550390d6d4813e1e9a9c43bf325998c87832fb94 SHA512 1adbb3b67d599f926dc19258e2596cb3b990e152e75e71645637098526207aa5632d7915fd5b67c7a045f63860cc7be3d28be014ad6141a342adc16b2fe8a879
 DIST rustc-1.37.0-src.tar.xz 98654252 BLAKE2B ddee92c7959a0e1ee11ffe5ded6017703cfac7bbf2a00dc46c37ed28f1cd1d31e1d5b62cc1a5ae2d55d64f8705d0cb282f4968deddf36c3152e5e0cfdfbea67d SHA512 bfee43f578e6d44ead950b870b9fd31087e1bd3f917611f5dce7ad56504b83185edf43e297e8d1304e9e97b9a580d1e6adf6608ab8ed6dee0dc8c5153cdbc5d4
 DIST rustc-1.38.0-src.tar.xz 96163304 BLAKE2B 1e900b44db64727477ccf8e58e0ebb9ec209bbeb349816b5f7937e58c165db8befae33c5667732e5aaaa677c5a6c1e0229d9969ab8967fda9b8d7a593e6c5eb6 SHA512 b756d29a7a222bc7b5c7f42ff397346ab840f78e559f93e6e36b65e76eea525cf429899fe4de9fb8966623a2225b552feef9fa831bee50f9e25c976fa2af8c0a
 DIST rustc-1.39.0-src.tar.xz 96495140 BLAKE2B 6df6bf0c3b38c28753713acdc477ea6929740c32893171dd9b8620992439e45730ef6f9489a6fc411ff5884c661ac4c07b7b93f5a4174207ed53351d2dea09bf SHA512 8610b2ec77722087c572bd84ac562a5b7c5f1a644aea58c5d5daa07a9aed242703b7816e73e2eaa049f773d5907859e259744a0de700622df005584fd798dab0
+DIST rustc-1.40.0-src.tar.xz 92306352 BLAKE2B 762b9592414e5c816540f6fd37d07b3b0ffe97a151968cc8ae77be2fda03a6d66905192985edc65055cc7811dbd90faa2b2c056481f72161c6f7ccbcce13671a SHA512 b5ac3079acefb62d3c985b77f624d7fb68de23a59396fed9ccb292db61641c064f3146ee54d3cf59067b17ebfaadd14a6b2b466def60316bb5b13ba3aef01e1f
diff --git a/dev-lang/rust/rust-1.40.0.ebuild b/dev-lang/rust/rust-1.40.0.ebuild
new file mode 100644
index 000000000000..5b5894917d64
--- /dev/null
+++ b/dev-lang/rust/rust-1.40.0.ebuild
@@ -0,0 +1,329 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python2_7 python3_{5,6,7} pypy )
+
+inherit bash-completion-r1 check-reqs estack flag-o-matic llvm multiprocessing multilib-build python-any-r1 rust-toolchain toolchain-funcs
+
+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="${BETA_SNAPSHOT}/rustc-beta-src.tar.xz"
+else
+	ABI_VER="$(ver_cut 1-2)"
+	SLOT="stable/${ABI_VER}"
+	MY_P="rustc-${PV}"
+	SRC="${MY_P}-src.tar.xz"
+	KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86"
+fi
+
+RUST_STAGE0_VERSION="1.$(($(ver_cut 2) - 1)).0"
+
+DESCRIPTION="Systems programming language from Mozilla"
+HOMEPAGE="https://www.rust-lang.org/"
+
+SRC_URI="https://static.rust-lang.org/dist/${SRC} -> rustc-${PV}-src.tar.xz
+	$(rust_all_arch_uris rust-${RUST_STAGE0_VERSION})"
+
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM 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-1 BSD-2 BSD-4 UoI-NCSA"
+
+IUSE="clippy cpu_flags_x86_sse2 debug doc libressl rls rustfmt system-llvm 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:
+# 1. List all the working slots (with min versions) in ||, newest first.
+# 2. Update the := to specify *max* version, e.g. < 9.
+# 3. Specify LLVM_MAX_SLOT, e.g. 8.
+LLVM_DEPEND="
+	|| (
+		sys-devel/llvm:9[llvm_targets_WebAssembly?]
+		wasm? ( =sys-devel/lld-9* )
+	)
+	<sys-devel/llvm-10:=
+"
+LLVM_MAX_SLOT=9
+
+COMMON_DEPEND="
+	sys-libs/zlib
+	!libressl? ( dev-libs/openssl:0= )
+	libressl? ( dev-libs/libressl:0= )
+	net-libs/libssh2
+	net-libs/http-parser:=
+	net-misc/curl[ssl]
+	system-llvm? (
+		${LLVM_DEPEND}
+	)
+"
+
+DEPEND="${COMMON_DEPEND}
+	${PYTHON_DEPS}
+	|| (
+		>=sys-devel/gcc-4.7
+		>=sys-devel/clang-3.5
+	)
+	dev-util/cmake
+"
+
+RDEPEND="${COMMON_DEPEND}
+	>=app-eselect/eselect-rust-20190311
+	!dev-util/cargo
+	rustfmt? ( !dev-util/rustfmt )
+"
+
+REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )
+	wasm? ( llvm_targets_WebAssembly )
+	x86? ( cpu_flags_x86_sse2 )
+"
+QA_FLAGS_IGNORED="usr/bin/* usr/lib*/${P}"
+
+PATCHES=(
+	"${FILESDIR}"/1.36.0-libressl.patch
+)
+
+S="${WORKDIR}/${MY_P}-src"
+
+toml_usex() {
+	usex "$1" true false
+}
+
+pre_build_checks() {
+	CHECKREQS_DISK_BUILD="9G"
+	eshopts_push -s extglob
+	if is-flagq '-g?(gdb)?([1-9])'; then
+		CHECKREQS_DISK_BUILD="14G"
+	fi
+	eshopts_pop
+	check-reqs_pkg_setup
+}
+
+pkg_pretend() {
+	pre_build_checks
+}
+
+pkg_setup() {
+	pre_build_checks
+	python-any-r1_pkg_setup
+	use system-llvm && llvm_pkg_setup
+}
+
+src_prepare() {
+	local rust_stage0_root="${WORKDIR}"/rust-stage0
+
+	local rust_stage0="rust-${RUST_STAGE0_VERSION}-$(rust_abi)"
+
+	"${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig --destdir="${rust_stage0_root}" --prefix=/ || die
+
+	default
+}
+
+src_configure() {
+	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_targets},\"$(rust_abi $(get_abi_CHOST ${v##*.}))\""
+	done
+	if use wasm; then
+		rust_targets="${rust_targets},\"wasm32-unknown-unknown\""
+	fi
+	rust_targets="${rust_targets#,}"
+
+	local extended="true" tools="\"cargo\","
+	if use clippy; then
+		tools="\"clippy\",$tools"
+	fi
+	if use rls; then
+		tools="\"rls\",\"analysis\",\"src\",$tools"
+	fi
+	if use rustfmt; then
+		tools="\"rustfmt\",$tools"
+	fi
+
+	local rust_stage0_root="${WORKDIR}"/rust-stage0
+
+	rust_target="$(rust_abi)"
+
+	cat <<- EOF > "${S}"/config.toml
+		[llvm]
+		optimize = $(toml_usex !debug)
+		release-debuginfo = $(toml_usex debug)
+		assertions = $(toml_usex debug)
+		targets = "${LLVM_TARGETS// /;}"
+		experimental-targets = ""
+		link-shared = $(toml_usex system-llvm)
+		[build]
+		build = "${rust_target}"
+		host = ["${rust_target}"]
+		target = [${rust_targets}]
+		cargo = "${rust_stage0_root}/bin/cargo"
+		rustc = "${rust_stage0_root}/bin/rustc"
+		docs = $(toml_usex doc)
+		submodules = false
+		python = "${EPYTHON}"
+		locked-deps = true
+		vendor = true
+		extended = ${extended}
+		tools = [${tools}]
+		verbose = 2
+		[install]
+		prefix = "${EPREFIX}/usr"
+		libdir = "$(get_libdir)/${P}"
+		docdir = "share/doc/${P}"
+		mandir = "share/${P}/man"
+		[rust]
+		optimize = $(toml_usex !debug)
+		debug = $(toml_usex debug)
+		debug-assertions = $(toml_usex debug)
+		default-linker = "$(tc-getCC)"
+		channel = "stable"
+		rpath = false
+		lld = $(usex system-llvm false $(toml_usex wasm))
+	EOF
+
+	for v in $(multilib_get_enabled_abi_pairs); do
+		rust_target=$(rust_abi $(get_abi_CHOST ${v##*.}))
+		arch_cflags="$(get_abi_CFLAGS ${v##*.})"
+
+		cat <<- EOF >> "${S}"/config.env
+			CFLAGS_${rust_target}=${arch_cflags}
+		EOF
+
+		cat <<- EOF >> "${S}"/config.toml
+			[target.${rust_target}]
+			cc = "$(tc-getBUILD_CC)"
+			cxx = "$(tc-getBUILD_CXX)"
+			linker = "$(tc-getCC)"
+			ar = "$(tc-getAR)"
+		EOF
+		if use system-llvm; then
+			cat <<- EOF >> "${S}"/config.toml
+				llvm-config = "$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config"
+			EOF
+		fi
+	done
+
+	if use wasm; then
+		cat <<- EOF >> "${S}"/config.toml
+			[target.wasm32-unknown-unknown]
+			linker = "$(usex system-llvm lld rust-lld)"
+		EOF
+	fi
+}
+
+src_compile() {
+	env $(cat "${S}"/config.env)\
+		"${EPYTHON}" ./x.py build -vv --config="${S}"/config.toml -j$(makeopts_jobs) \
+		--exclude src/tools/miri || die # https://github.com/rust-lang/rust/issues/52305
+}
+
+src_install() {
+	local rust_target abi_libdir
+
+	env DESTDIR="${D}" "${EPYTHON}" ./x.py install -vv --config="${S}"/config.toml \
+	--exclude src/tools/miri || die
+
+	# bug #689562, #689160
+	rm "${D}/etc/bash_completion.d/cargo" || die
+	rmdir "${D}"/etc{/bash_completion.d,} || die
+	dobashcomp build/tmp/dist/cargo-image/etc/bash_completion.d/cargo
+
+	mv "${ED}/usr/bin/rustc" "${ED}/usr/bin/rustc-${PV}" || die
+	mv "${ED}/usr/bin/rustdoc" "${ED}/usr/bin/rustdoc-${PV}" || die
+	mv "${ED}/usr/bin/rust-gdb" "${ED}/usr/bin/rust-gdb-${PV}" || die
+	mv "${ED}/usr/bin/rust-gdbgui" "${ED}/usr/bin/rust-gdbgui-${PV}" || die
+	mv "${ED}/usr/bin/rust-lldb" "${ED}/usr/bin/rust-lldb-${PV}" || die
+	mv "${ED}/usr/bin/cargo" "${ED}/usr/bin/cargo-${PV}" || die
+	if use clippy; then
+		mv "${ED}/usr/bin/clippy-driver" "${ED}/usr/bin/clippy-driver-${PV}" || die
+		mv "${ED}/usr/bin/cargo-clippy" "${ED}/usr/bin/cargo-clippy-${PV}" || die
+	fi
+	if use rls; then
+		mv "${ED}/usr/bin/rls" "${ED}/usr/bin/rls-${PV}" || die
+	fi
+	if use rustfmt; then
+		mv "${ED}/usr/bin/rustfmt" "${ED}/usr/bin/rustfmt-${PV}" || die
+		mv "${ED}/usr/bin/cargo-fmt" "${ED}/usr/bin/cargo-fmt-${PV}" || die
+	fi
+
+	# Copy shared library versions of standard libraries for all targets
+	# into the system's abi-dependent lib directories because the rust
+	# installer only does so for the native ABI.
+	for v in $(multilib_get_enabled_abi_pairs); do
+		if [ ${v##*.} = ${DEFAULT_ABI} ]; then
+			continue
+		fi
+		abi_libdir=$(get_abi_LIBDIR ${v##*.})
+		rust_target=$(rust_abi $(get_abi_CHOST ${v##*.}))
+		mkdir -p "${ED}/usr/${abi_libdir}/${P}"
+		cp "${ED}/usr/$(get_libdir)/${P}/rustlib/${rust_target}/lib"/*.so \
+		   "${ED}/usr/${abi_libdir}/${P}" || die
+	done
+
+	dodoc COPYRIGHT
+
+	# FIXME:
+	# Really not sure if that env is needed, specailly LDPATH
+	cat <<-EOF > "${T}"/50${P}
+		LDPATH="${EPREFIX}/usr/$(get_libdir)/${P}"
+		MANPATH="${EPREFIX}/usr/share/${P}/man"
+	EOF
+	doenvd "${T}"/50${P}
+
+	# note: eselect-rust adds EROOT to all paths below
+	cat <<-EOF > "${T}/provider-${P}"
+		/usr/bin/rustdoc
+		/usr/bin/rust-gdb
+		/usr/bin/rust-gdbgui
+		/usr/bin/rust-lldb
+	EOF
+	echo /usr/bin/cargo >> "${T}/provider-${P}"
+	if use clippy; then
+		echo /usr/bin/clippy-driver >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-clippy >> "${T}/provider-${P}"
+	fi
+	if use rls; then
+		echo /usr/bin/rls >> "${T}/provider-${P}"
+	fi
+	if use rustfmt; then
+		echo /usr/bin/rustfmt >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
+	fi
+	dodir /etc/env.d/rust
+	insinto /etc/env.d/rust
+	doins "${T}/provider-${P}"
+}
+
+pkg_postinst() {
+	eselect rust update --if-unset
+
+	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}."
+
+	ewarn "cargo is now installed from dev-lang/rust{,-bin} instead of dev-util/cargo."
+	ewarn "This might have resulted in a dangling symlink for /usr/bin/cargo on some"
+	ewarn "systems. This can be resolved by calling 'sudo eselect rust set ${P}'."
+
+	if has_version app-editors/emacs || has_version app-editors/emacs-vcs; 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
+}