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

[Georgy Yakovlev]

commit:     fde345ecf0c3b9526b6dee538bf9b67377fe0013
Author:     Georgy Yakovlev <gyakovlev <AT> gentoo <DOT> org>
AuthorDate: Fri Aug 16 02:41:39 2019 +0000
Commit:     Georgy Yakovlev <gyakovlev <AT> gentoo <DOT> org>
CommitDate: Fri Aug 16 02:43:02 2019 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=fde345ec

dev-lang/rust: bump to 1.37.0

Package-Manager: Portage-2.3.71, Repoman-2.3.17
Signed-off-by: Georgy Yakovlev <gyakovlev <AT> gentoo.org>

 dev-lang/rust/Manifest           |  14 ++
 dev-lang/rust/rust-1.37.0.ebuild | 326 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 340 insertions(+)

diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index dd56cf989a0..fa10664a6c4 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -37,6 +37,20 @@ DIST rust-1.35.0-powerpc64-unknown-linux-gnu.tar.xz 139462276 BLAKE2B b99ee8f5f0
 DIST rust-1.35.0-powerpc64le-unknown-linux-gnu.tar.xz 143826544 BLAKE2B ff5f814515034b382faf40dc0d95623ec57c4f063ded1bb89364594736269744f5409c978de24fa29f6a061d1489179456a90847f5ce8de1f684df22fda68b75 SHA512 3b63dac50a92693d13066aa6e96de05fceb2da6c07834adfab8c12e6a78f59051dfa008062b1d2ad410a009e2164fc716d689231e552379e419161d1620d0066
 DIST rust-1.35.0-s390x-unknown-linux-gnu.tar.xz 152808372 BLAKE2B 96a1e2b96b6a1faf5a3125494b17c4d5f95ea618a5ff8f7ddb7506ebef4fd6cf7f9a2ae961657b7b969a5f3cbc870c805c6634163e7f5fc71e058ea4528e19a0 SHA512 11539eb25e474bbaa8e57f21c3f64506859bc86baec74df24bb4aaf5361745840b82ff715fc54fbd6ba654a8f7fd4f064af0538b983dd489cd69498bd70d1bf7
 DIST rust-1.35.0-x86_64-unknown-linux-gnu.tar.xz 161491264 BLAKE2B ed336829cfe4199750798352e4e338f307033ea0eb5db9ab68f9cf7465d86edbd1218d3e929c775822fd5db3d73a5d75c6e9b5ca45ed6b474bffe403f39f71a0 SHA512 49976ac2fbac5b1709c4a7f3785eb99ab827464ec4d99ee7190df16c3be23e98de606566b57df2231a15097c7fe984e0d19496ce7478ccc1f0f2c7aeb32ecb04
+DIST rust-1.36.0-aarch64-unknown-linux-gnu.tar.xz 139261576 BLAKE2B f8f0ac14c397253298bb321fef83e78fb839e647fa8a9ff891f16e3a1723e1ee69e59686357751b3b4c1a1d1e28632c2047be8795f8a27733ee4bbe8ff71e105 SHA512 77ffd9aa0dfdbb886a51c8d17e3e348c777226e859a48374dad8be20b9a3c7130c7f46d9173753e4ac4a264b45610767ba2625df4192773913892a13a255d3d6
+DIST rust-1.36.0-arm-unknown-linux-gnueabi.tar.xz 140294440 BLAKE2B 25d0ea284d20f93bc82618c61abcd4281835e914426e3e9998ff80d233af4cbb938c05bd3dc9422c3f212f24a08f6bea3f67691860acd8cce60d9f7015556381 SHA512 e1dd8200ade615bcedcc1372d4833c037435a47311ca8a20ebbf914d80add818bf70adadf2b6d33d5a4f04eb4994722978b6b3f83dc6a7cc3c98aea52f244405
+DIST rust-1.36.0-arm-unknown-linux-gnueabihf.tar.xz 140715096 BLAKE2B effed4996df93d2defa843b3356d80abb9a3a69990f5d6c7d6c38f18ad39d2b46618d64007014be931762ab31c2c46a747cc2705b3cd0ec66e7fa888ecfaf81a SHA512 dfabb476a1f31755eea4a0b976991ea083682463e4538f2b7f34dcfa4b6220b82d81fdf4c677294899d5cd740a8a3e012d1b0bb424ae529c05ce92802cf18959
+DIST rust-1.36.0-armv7-unknown-linux-gnueabihf.tar.xz 142315532 BLAKE2B bb6ca7c0af1691c82dd64fcd563573c815147457a69fd0ddef238db4bc5f0ccc7c7ea72429c9d7401db3d431674da70e86183ebad83e7153adad4287de385ac6 SHA512 b31e34f44df17d89f9f2a609a5b5b2320f43691e06ead257d893766abf8764a158adff0265dd60bf1f63dd98f0bf6bc64ae3b9e9f45200fbd7dfcaec3ba85d01
+DIST rust-1.36.0-i686-unknown-linux-gnu.tar.xz 182609496 BLAKE2B 8fa915670346e554f6a881a44bfac42a5ca565acc3426b35901952eae9ea36780181e7569c2db52688a28d680de6fd02764d93219fdf93e7adbba8b8de3b0e6a SHA512 34bcb93ec7a313a28ac20cd853e37419c4607f4035a367015826bd797401a2ada20ee99ae9028b6115c9db8aa1d4f74b74fb08ed09ab528d5946bc26c754b182
+DIST rust-1.36.0-mips-unknown-linux-gnu.tar.xz 134020892 BLAKE2B 0579a8f6ae590780a1bf8a79c6ece290262fedce30721dc4ce405f774d9ed4cda99680da0aed22050147478d2ad3fe391f028a6d1e05b47b509a33d6f1569090 SHA512 8163136f8621ff8b562e50123eef5903de3bf888a230fa83fcc6aa0fad9ea61e1a1cc2248479e6e0f82f0c25014207c7b7186177067a21721156c795d59e8188
+DIST rust-1.36.0-mips64-unknown-linux-gnuabi64.tar.xz 140200900 BLAKE2B e0e9d428d0af610d4dcf4ff38bafdb24001e6644dcad62af6b1782362520358411767b10740587e37dc1ffb85f4036495cdfdb15d68d387988df2512e9a78d05 SHA512 d3dcfef22fc2e130150c64aaeb13a96696c48353300049aca3ba42411548922945192847ba12834d21619d9db26a6628cea8417e3678e52f2742438b862f5d7a
+DIST rust-1.36.0-mipsel-unknown-linux-gnu.tar.xz 136390260 BLAKE2B 63e26f3a9563a065d086daa223b732ab0ab89b424cf3e764d93b56c9efe9d611c6565cf89b649819a71af2195f19c278824ee71e2985b20fe55f20e75b8b6be8 SHA512 c8f6538b677ab8b7154b7a7e07ead85a84ff08bc27d2150189e7597e1f9f30ac418d72684916dc85ae8ff95718ec17e289e1f813303e97cec59e63a7f5c1367b
+DIST rust-1.36.0-powerpc-unknown-linux-gnu.tar.xz 134270632 BLAKE2B 5466f797d778e2112a0aa53a05f6853d9baf261b1c9a53fd05ac4925b7eb85b7b0a3df02a8509f98b800e42ef2a5ec09cb176e0a5893fc5ee57d0805bcba621f SHA512 a02afacc01a92b5575e3526b3b9bfa149f86ec03b3601b269fe4cb05d8f4dfa24b62625737f8ffe67bfababbe791af1584f45979ef012004b7de7771f29a9edf
+DIST rust-1.36.0-powerpc64-unknown-linux-gnu.tar.xz 145880928 BLAKE2B 4922df3a7d7f2d77a3f3380ec4ae9a1e4062cc81abe16ccc978543e4c24c4415bc34db0831b73c078f1ebebb57cea81c600d4e320cb10a4c508a252169d6999b SHA512 20bdd2b427549c866343962abefc4ffc356a1cb6965c754f28f19b05c234cb9c0abccbce036013deba1dc7699c2889ec954fff2b944953385624be54ee7a733e
+DIST rust-1.36.0-powerpc64le-unknown-linux-gnu.tar.xz 149721676 BLAKE2B e00bcc60a89354f6d4b5c89feffe5fe6dd7bf25d8dd2db2878e7c12ffc484e9258f37d80bda2b12f3965d96c73f1a03b6adbd8c20176c383e04f1a229d47d000 SHA512 02f32b544b0a55ba6f6fc4852f18766107bc0ce2c50488db11605e8a10e5965dd44e8332905c00080b08576370f2f0297ecbe12ba9fe01b4c24cdb9fd03ad64f
+DIST rust-1.36.0-s390x-unknown-linux-gnu.tar.xz 159518028 BLAKE2B c5876ea15c9fa56a92b4c0bf2aab472b83381a7a31fbb207e4165fdc49fea2150dddd53cc771dbcb81b01fe43a3175df146d8645d04c556af3556822fc59bf25 SHA512 c637b8f50cbce3333280f43ce4b97d3f75ddae429ee34461837c3c3869e20aed8c5e76f7a58998f617dc0ffc2e6afd00908e5de05f4c7ed9a8c34d5dbc7ce916
+DIST rust-1.36.0-x86_64-unknown-linux-gnu.tar.xz 169600936 BLAKE2B 8bf075f2b5624e4716e3058512b85b70e72ec6f0c8ce8fc38857612b02aa5702a1bb447f13f882a1b96b1f32330d0a8f7f1f1db81827b51cb7429195e070a5a3 SHA512 3f14dda1e09ef8c8168600f4d70ba60cb2a1086ad9edb5eed708d0ffc16fdb9c582ce350a93afcd64b78f87737e37d4f099703835a1ec9837a5721c2335e17c7
 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

diff --git a/dev-lang/rust/rust-1.37.0.ebuild b/dev-lang/rust/rust-1.37.0.ebuild
new file mode 100644
index 00000000000..6d0221fd98e
--- /dev/null
+++ b/dev-lang/rust/rust-1.37.0.ebuild
@@ -0,0 +1,326 @@
+# 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 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 one than more 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:8[llvm_targets_WebAssembly?]
+		wasm? ( =sys-devel/lld-8* )
+	)
+	<sys-devel/llvm-9:=
+"
+LLVM_MAX_SLOT=8
+
+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="|| ( ${ALL_LLVM_TARGETS[*]} )
+	wasm? ( llvm_targets_WebAssembly )
+	x86? ( cpu_flags_x86_sse2 )
+"
+
+PATCHES=(
+	"${FILESDIR}"/0001-llvm-cmake-Add-additional-headers-only-if-they-exist.patch
+	"${FILESDIR}"/1.34.2-fix-custom-libdir.patch
+	"${FILESDIR}"/1.35.0-revert-commits-triggering-multiple-llvm-rebuilds.patch
+	"${FILESDIR}"/1.36.0-libressl.patch
+)
+
+S="${WORKDIR}/${MY_P}-src"
+
+toml_usex() {
+	usex "$1" true false
+}
+
+pre_build_checks() {
+	CHECKREQS_DISK_BUILD="7G"
+	eshopts_push -s extglob
+	if is-flagq '-g?(gdb)?([1-9])'; then
+		CHECKREQS_DISK_BUILD="10G"
+	fi
+	eshopts_pop
+	check-reqs_pkg_setup
+}
+
+pkg_pretend() {
+	pre_build_checks
+}
+
+pkg_setup() {
+	pre_build_checks
+	python-any-r1_pkg_setup
+	use system-llvm && llvm_pkg_setup
+}
+
+src_prepare() {
+	local rust_stage0_root="${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
+}