dev-lang/rust: bump to 1.39.0

Package-Manager: Portage-2.3.76, Repoman-2.3.16
Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>

2 files changed, 338 insertions, 0 deletions

diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index 56ecbd36bd4f..55d664fe155f 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -63,8 +63,22 @@ DIST rust-1.37.0-powerpc64-unknown-linux-gnu.tar.xz 128662180 BLAKE2B 0df1def64d
 DIST rust-1.37.0-powerpc64le-unknown-linux-gnu.tar.xz 131763436 BLAKE2B 76b9120e98da09344ce5af39a9b333c6ca8917516ae7108d6cc129fdda4d4d6c21e2ca4c41533e202f63b992bcede5390ec986a262ea216c1340a82c5ba798e8 SHA512 366c8920448000bfb4baa3a47588a1c7bc81e18afb8d40f0efc824e429e9e6900efbdb4c9003fb45b9d8595328bd612bd63f390a7d3dedbb30b7dc57fc12abf3
 DIST rust-1.37.0-s390x-unknown-linux-gnu.tar.xz 141808296 BLAKE2B 73825a004be81cca4dfff1301ea0ef45c9f55ab8d9a9a0343585377d83c4bdc03d3c027622f18e144c9355afe6f5236a6273f84b43b01a221066d3c395f71017 SHA512 14f403d3ce9df2a2baba1db13c9f039d7118d7e0c8285ca19ea0284c32e80c3f786660dedef4d1758b2227f91732b8e7deccbf3f38c2b3491738c1408d6bfd0e
 DIST rust-1.37.0-x86_64-unknown-linux-gnu.tar.xz 165034364 BLAKE2B 3047fff28da00e01179d3a648cb4e5636fa15ac7f4cb9ddc14e1df86d045b69ff3e41691b4a6ef4227c4cb58137524c5e029ba21a2c3a3a171fdb6f46b44f4ff SHA512 c4d48aa12cb929d6600f9cce81bb612c504aa1b3b3f8e76352af3a76b737dcbe0d31e8d139c17884b11aef9f12a55c4908fb8f3ff63dfa92533e4bd0a729914f
+DIST rust-1.38.0-aarch64-unknown-linux-gnu.tar.xz 235231988 BLAKE2B 03ee6ab2c928134f8dd7e5812b60185b934c2f792b64d6271bff4fb714a9acd0f52a6aee291cc22e7f263cb52173568f5ccfb36edd0eb0dbcd567240beeb1372 SHA512 c9dea8907d05af938c1936139c1fb8673d0db90503552f53645d71637bb7248263fd20b1c16db140694b2d467a12c474015a2077d9b26c782b44e965a01544c6
+DIST rust-1.38.0-arm-unknown-linux-gnueabi.tar.xz 241780224 BLAKE2B ec362bc67d7b4f3e3d4ba2e19b46af61322b3f8284bf7fd66ac1eb006975c6d6aaa12be8b827147ac8ab42cc11d6c540161fc15c8233a2943a078ce89a300c17 SHA512 4ea00aa2b8bccae4fb595c687058af0c82905cbeef93b3d90f5224657bec0f269d0e75af2be6b97b2043442190dbe2df4aeacfafd6cc8916b0fe2ef28908e987
+DIST rust-1.38.0-arm-unknown-linux-gnueabihf.tar.xz 242107656 BLAKE2B 9c43dbe34d99925f34cec339adcedbf71d72515f08ac456293a17dc602ea027b90c552ef891908661f20c2ef07cd7915b9d8936206c65be9e8ae493c699e4265 SHA512 99726beb670af6411ed8dcfbd0eddbce3b964703492686226815f7c0a5c57fd3d0593925345d4f311cd9f5cb2eb9089e80cbb6c62ba767a901e5c5f099e6ebad
+DIST rust-1.38.0-armv7-unknown-linux-gnueabihf.tar.xz 243411104 BLAKE2B 19c9f2daa81170822ec23049945500a2a6c7342d6c03d50627dcc11766f31b592c40773777583b04666c75320f3953404c55c0b5aa213d771136afb3c4638fa6 SHA512 ddbb2c8d2e7112c5871155890c8308080ac800795c685c4b4d06b9dd8c5abd28ee13961686c9be465d1bbd33d476c6478b90af8de0ca5a451f8b07eaff42f97d
+DIST rust-1.38.0-i686-unknown-linux-gnu.tar.xz 298169160 BLAKE2B 93181072784885cbc23efe12e5511de9dcd564610169990e3d7617413a9073e06efa743b3c95d87fb3065c036ff4b4656e1d2a52571ca55b62a3364479fd87da SHA512 ffdea264378510c6df687a173211427f4cb5930553c9d14e33c5776b0e15d435d1be719bba8a1db50f50a3171a38802e090451dc92a6ea764cc8fdca24651f24
+DIST rust-1.38.0-mips-unknown-linux-gnu.tar.xz 242052876 BLAKE2B 323587aab4bb1d70795664efbc5ec61cf7dfc3d33f1e9831d6a2e0d591a4dc60c1d5bf305a4b7f767858ac33d296155c4baf8e2db23c48114f0ae72ba823ef83 SHA512 5bd8faff88ac35431087ee33520c92a52e64262774ea899d610137e51a71efa25403b1e026e509fc0593f6da65c68b561c051feadf482f0ee25875b526992109
+DIST rust-1.38.0-mips64-unknown-linux-gnuabi64.tar.xz 237741316 BLAKE2B d1f758013d53853d4713400e383cb443dae5187156a54ea39d4bd79f60b60e7322785613456a64c1d00e28b575ff528ba01d608cc234e23ead5156ac855b1ad0 SHA512 05884f678b31d7af0f54d8d31ef6d09d1a3a3e9d6d5245583e4ef5a2db47c3aa9e4a226b55678077b759156e41473e8ff9fa8b12c21276882a0bcb53b45d5811
+DIST rust-1.38.0-mipsel-unknown-linux-gnu.tar.xz 244454148 BLAKE2B a20f2ad0bcbf52e61a997271147161c7eed0dadd795ed16d2f0078924b8be9d132f464d5eefbe9c41a1cdb5ae18005e8d82b3b5ef703d5a7a86e4f940b847bcb SHA512 3eed9fa45a8a9e5f67282053933375f862860f6a68032a62fcd286ec39276610914689c83d9bd95302d15d61433304e2aca6f10b87d7eb762950f7574379e426
+DIST rust-1.38.0-powerpc-unknown-linux-gnu.tar.xz 239750464 BLAKE2B 202475f8035504a3d8a81b498c4461cbe4a25d29284dc504a5db2d52740ad8fb35dadbb83ac0fbfce14cefed1209431c16e10a91608b6a90633d8c3a08e03ae4 SHA512 3cc93f76a2e2defdfeb4c18b84a3c950716bdb6fe68446d4dd97d6b5a0ad53b2fc5e97f220a5f205ab07428f5d5a048a3a9de36f90d9685be8551b4be3188a36
+DIST rust-1.38.0-powerpc64-unknown-linux-gnu.tar.xz 240082008 BLAKE2B d15d508397cb4e7b8b8fdd13d6825e05d093b90250c8e261f86fd4588f1f338489c725506b3a1db8bc7a3b2df4979f18854d360ec2de6580e411572d216c1a59 SHA512 26240976834e510fa5a47c35b747b42db4651ea8decdb5498704432c9a21563e603046994fcc2b070d06361bf2c36fe02a15c7f02d88161b299a410f1995983a
+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 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
diff --git a/dev-lang/rust/rust-1.39.0.ebuild b/dev-lang/rust/rust-1.39.0.ebuild
new file mode 100644
index 000000000000..8a80a66450bd
--- /dev/null
+++ b/dev-lang/rust/rust-1.39.0.ebuild
@@ -0,0 +1,324 @@
+# 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 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
+
+	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
+}