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

["Quentin Retornaz" <gentoo@retornaz.com>]

commit:     7143e787e95fae9cfb9969d0596842ea1fe570c0
Author:     orbea <orbea <AT> riseup <DOT> net>
AuthorDate: Fri Aug 20 19:46:02 2021 +0000
Commit:     Quentin Retornaz <gentoo <AT> retornaz <DOT> com>
CommitDate: Fri Aug 20 23:56:08 2021 +0000
URL:        https://gitweb.gentoo.org/repo/proj/libressl.git/commit/?id=7143e787

dev-lang/rust: Version bump for 1.54.0

Signed-off-by: orbea <orbea <AT> riseup.net>
Closes: https://github.com/gentoo/libressl/pull/347
Signed-off-by: Quentin Retornaz <gentoo <AT> retornaz.com>

 dev-lang/rust/files/1.54.0-libressl.patch      |  43 ++
 dev-lang/rust/files/1.54.0-parallel-miri.patch |  43 ++
 dev-lang/rust/rust-1.54.0.ebuild               | 680 +++++++++++++++++++++++++
 3 files changed, 766 insertions(+)

diff --git a/dev-lang/rust/files/1.54.0-libressl.patch b/dev-lang/rust/files/1.54.0-libressl.patch
new file mode 100644
index 0000000..8899786
--- /dev/null
+++ b/dev-lang/rust/files/1.54.0-libressl.patch
@@ -0,0 +1,43 @@
+From 137d2bcff8f7eca2207fe5899ba2bd0c83833dca Mon Sep 17 00:00:00 2001
+From: Stefan Strogin <steils@gentoo.org>
+Date: Fri, 20 Aug 2021 12:23:13 -0700
+Subject: [PATCH] Support LibreSSL 3.3.x
+
+Signed-off-by: orbea <orbea@riseup.net>
+---
+ vendor/openssl-sys/.cargo-checksum.json | 2 +-
+ vendor/openssl-sys/build/main.rs        | 3 ++-
+ 2 files changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/vendor/openssl-sys/.cargo-checksum.json b/vendor/openssl-sys/.cargo-checksum.json
+index 4e9f9c71b..003be66d4 100644
+--- a/vendor/openssl-sys/.cargo-checksum.json
++++ b/vendor/openssl-sys/.cargo-checksum.json
+@@ -1 +1 @@
+-{"files":{"CHANGELOG.md":"3c38e78f95e359924f839c6f3738c75b91149af81c23688dfaf37618a3332755","Cargo.toml":"d25f5ed8a445b5efc5bb81d51d7409e6b7e0abb90ceffe623dfa0da00c3f4ebb","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"18071782a20c51379733d7c2041c6755a11326d0153d8c7c3073875d7870da42","build/cfgs.rs":"9f92d008cf0db1cc2728f2b67c24a719840a4c8645d11dc560eadd8e9b0adeac","build/expando.c":"14d2de522d6ef7214c3f1ca73b9231229420b8ba95bdcf01cac93bf775aed15e","build/find_normal.rs":"1c5f996f44e77311d7e4c0e6bdfa212de427f569c19c790c119b88d472977700","build/find_vendored.rs":"7bf0e59c5646d72ee5a4392ad970fdf5c20288ddaf54dd86a8caff49583b38f5","build/main.rs":"c7485a16dd676de00d9ef42e3e41c5217cc6d5f5783f492a61b9c118e9f3bf18","src/aes.rs":"822bf666db351fe6ef9607c918081d6ad378fc1cedb05290bb746f86980c6088","src/asn1.rs":"801c254afc76b0c29b756bd86a149361609f82ec33c1f1fad39a512fbe4e87ee","src/bio.rs":"3aac4e38ccf8d832b4156908cd3f1ff9c56f84c05d2f07ed7a3e3fcc
 abe965e9","src/bn.rs":"c71b9c79f704a94a889d27bf75e7e5b1f9f10b0df0aeb485aef509cf05d7467f","src/cms.rs":"f21a403fea95e7b7efe0539a429831cfa51c8818adb79c7ebf73ae2a6f2dc87e","src/conf.rs":"511e008c18039f54d856d70b80009426fc7f4ce34fe4304e2c58ebf465031de0","src/crypto.rs":"a1279719ade9704be3d9af55ff679abbe918d525f332ca15810146d45e9080cf","src/dh.rs":"280fd508756b8013368a4233465f681a1339ad4e415569c14762e5dad0441cbe","src/dsa.rs":"ae79baf231681900ea76304285b3ffacf5298c90b8c04d371269cf4adbb5b9fa","src/dtls1.rs":"45e1dbf94a42d587fd948d553dc30187aa6aa2b5b82d554cf725ff36df768aa0","src/ec.rs":"c215a564373e8de1da63b698fbafc187d738fe90b77f998713a91180e178e350","src/err.rs":"3edf1379b3277df32e047a52553d243d4a4001111a277cf4b12f7297f2fe2bf0","src/evp.rs":"e82deaaf6d76c3dc52fd574fa131ac4f64dc6c5f173cf38dfd0a24b2f878c5be","src/hmac.rs":"fa3976d94a1383f300bdec228270afb8b47c97bb019d727c7d59ba783be3c42e","src/lib.rs":"57291110117331f5d6733da1421267e47cf891e0e0411b0720a04fdbc0686700","src/macros.rs":"7ed99c
 00c53ee12ea92634d4ace0af84845ebf98819869746e7896c8eaff23db","src/obj_mac.rs":"42019b142e523d7695d8c14ee7f72fa4b5702c07dee98fa12e70ab7dfcc95459","src/object.rs":"210d91fc81414da4cd3afa0127cabffef1640fa85e65635bc489e0f721ee929f","src/ocsp.rs":"154e416aa14df8d5aa962f3352ca72bab00716f0834413c78dfa663e0880e9dd","src/ossl_typ.rs":"4379b8327a1efbae1c784ad576c98ac7708bf62cab1c373845d9ca948b5e401b","src/pem.rs":"ba80937125618cd0e7073d69be6aff3b619ede74e227a158cb0a68af27f69640","src/pkcs12.rs":"f1a3f32f128fa8ce94391c1957a0e535387cebc0e25d21743888b172518dd636","src/pkcs7.rs":"0c5a0f85323a1e5a4d7edcc433166de8614b44f545758d926cf95e9626d4af2b","src/rand.rs":"469601b4fbb56d4dbf5cf5d7bb8483e3bde411edea18601e7d1ed6ef27180fd3","src/rsa.rs":"aa984781f19d3e88527bec9db5338b19051313b01589018c5bb86923f058c6c6","src/safestack.rs":"6c39e28565d34efad707d77561d4caa99e3f028fcac3a2ef6fd403a78de1190c","src/sha.rs":"1a6b028a63654d2419417a9a8af790cd22409a4643682a0686ecdb9441264eba","src/srtp.rs":"1c4dee9e6c139cc70
 416207786e385f199321624fb9fbf3cbf39a8160c0c405d","src/ssl.rs":"5970b21a47668f7efb8130f22110d9ab65c571a45681c02d8ab596b7068db963","src/ssl3.rs":"9336c816e00847d552dea22587d4ac72ff3cbd469fa5ff750423a19ea11e68eb","src/stack.rs":"1a509907283e5a2bf88cf193ce607f49ce7d2d95547c2ce2abc0fd4567aad334","src/tls1.rs":"60ca3dea1bbfda645bde563b4a878dac129c3f760e3ad572381000fc7a8ef522","src/x509.rs":"7ffbf8687f650dd9678eab61871913579539f78ebf69f005f07f7a40017b26cb","src/x509_vfy.rs":"a5fc69e3ef3565c8d9196768c0b84bd876edfb019688dc4487dbb88f6a89293d","src/x509v3.rs":"520253195097d134e553c6378c1db2510eae6ccfcab6f6fb08919697bc0f023b"},"package":"313752393519e876837e09e1fa183ddef0be7735868dced3196f4472d536277f"}
+\ No newline at end of file
++{"files":{"CHANGELOG.md":"3c38e78f95e359924f839c6f3738c75b91149af81c23688dfaf37618a3332755","Cargo.toml":"d25f5ed8a445b5efc5bb81d51d7409e6b7e0abb90ceffe623dfa0da00c3f4ebb","LICENSE-MIT":"378f5840b258e2779c39418f3f2d7b2ba96f1c7917dd6be0713f88305dbda397","README.md":"18071782a20c51379733d7c2041c6755a11326d0153d8c7c3073875d7870da42","build/cfgs.rs":"9f92d008cf0db1cc2728f2b67c24a719840a4c8645d11dc560eadd8e9b0adeac","build/expando.c":"14d2de522d6ef7214c3f1ca73b9231229420b8ba95bdcf01cac93bf775aed15e","build/find_normal.rs":"1c5f996f44e77311d7e4c0e6bdfa212de427f569c19c790c119b88d472977700","build/find_vendored.rs":"7bf0e59c5646d72ee5a4392ad970fdf5c20288ddaf54dd86a8caff49583b38f5","build/main.rs":"93ac710e06c9db872b47de99a61bc4aa058ac99e3d734a27a77332a47cca2f75","src/aes.rs":"822bf666db351fe6ef9607c918081d6ad378fc1cedb05290bb746f86980c6088","src/asn1.rs":"801c254afc76b0c29b756bd86a149361609f82ec33c1f1fad39a512fbe4e87ee","src/bio.rs":"3aac4e38ccf8d832b4156908cd3f1ff9c56f84c05d2f07ed7a3e3fcc
 abe965e9","src/bn.rs":"c71b9c79f704a94a889d27bf75e7e5b1f9f10b0df0aeb485aef509cf05d7467f","src/cms.rs":"f21a403fea95e7b7efe0539a429831cfa51c8818adb79c7ebf73ae2a6f2dc87e","src/conf.rs":"511e008c18039f54d856d70b80009426fc7f4ce34fe4304e2c58ebf465031de0","src/crypto.rs":"a1279719ade9704be3d9af55ff679abbe918d525f332ca15810146d45e9080cf","src/dh.rs":"280fd508756b8013368a4233465f681a1339ad4e415569c14762e5dad0441cbe","src/dsa.rs":"ae79baf231681900ea76304285b3ffacf5298c90b8c04d371269cf4adbb5b9fa","src/dtls1.rs":"45e1dbf94a42d587fd948d553dc30187aa6aa2b5b82d554cf725ff36df768aa0","src/ec.rs":"c215a564373e8de1da63b698fbafc187d738fe90b77f998713a91180e178e350","src/err.rs":"3edf1379b3277df32e047a52553d243d4a4001111a277cf4b12f7297f2fe2bf0","src/evp.rs":"e82deaaf6d76c3dc52fd574fa131ac4f64dc6c5f173cf38dfd0a24b2f878c5be","src/hmac.rs":"fa3976d94a1383f300bdec228270afb8b47c97bb019d727c7d59ba783be3c42e","src/lib.rs":"57291110117331f5d6733da1421267e47cf891e0e0411b0720a04fdbc0686700","src/macros.rs":"7ed99c
 00c53ee12ea92634d4ace0af84845ebf98819869746e7896c8eaff23db","src/obj_mac.rs":"42019b142e523d7695d8c14ee7f72fa4b5702c07dee98fa12e70ab7dfcc95459","src/object.rs":"210d91fc81414da4cd3afa0127cabffef1640fa85e65635bc489e0f721ee929f","src/ocsp.rs":"154e416aa14df8d5aa962f3352ca72bab00716f0834413c78dfa663e0880e9dd","src/ossl_typ.rs":"4379b8327a1efbae1c784ad576c98ac7708bf62cab1c373845d9ca948b5e401b","src/pem.rs":"ba80937125618cd0e7073d69be6aff3b619ede74e227a158cb0a68af27f69640","src/pkcs12.rs":"f1a3f32f128fa8ce94391c1957a0e535387cebc0e25d21743888b172518dd636","src/pkcs7.rs":"0c5a0f85323a1e5a4d7edcc433166de8614b44f545758d926cf95e9626d4af2b","src/rand.rs":"469601b4fbb56d4dbf5cf5d7bb8483e3bde411edea18601e7d1ed6ef27180fd3","src/rsa.rs":"aa984781f19d3e88527bec9db5338b19051313b01589018c5bb86923f058c6c6","src/safestack.rs":"6c39e28565d34efad707d77561d4caa99e3f028fcac3a2ef6fd403a78de1190c","src/sha.rs":"1a6b028a63654d2419417a9a8af790cd22409a4643682a0686ecdb9441264eba","src/srtp.rs":"1c4dee9e6c139cc70
 416207786e385f199321624fb9fbf3cbf39a8160c0c405d","src/ssl.rs":"5970b21a47668f7efb8130f22110d9ab65c571a45681c02d8ab596b7068db963","src/ssl3.rs":"9336c816e00847d552dea22587d4ac72ff3cbd469fa5ff750423a19ea11e68eb","src/stack.rs":"1a509907283e5a2bf88cf193ce607f49ce7d2d95547c2ce2abc0fd4567aad334","src/tls1.rs":"60ca3dea1bbfda645bde563b4a878dac129c3f760e3ad572381000fc7a8ef522","src/x509.rs":"7ffbf8687f650dd9678eab61871913579539f78ebf69f005f07f7a40017b26cb","src/x509_vfy.rs":"a5fc69e3ef3565c8d9196768c0b84bd876edfb019688dc4487dbb88f6a89293d","src/x509v3.rs":"520253195097d134e553c6378c1db2510eae6ccfcab6f6fb08919697bc0f023b"},"package":"313752393519e876837e09e1fa183ddef0be7735868dced3196f4472d536277f"}
+diff --git a/vendor/openssl-sys/build/main.rs b/vendor/openssl-sys/build/main.rs
+index df03e01f6..1d813f7d5 100644
+--- a/vendor/openssl-sys/build/main.rs
++++ b/vendor/openssl-sys/build/main.rs
+@@ -232,6 +232,7 @@ See rust-openssl README for more information:
+             (3, 2, _) => ('3', '2', 'x'),
+             (3, 3, 0) => ('3', '3', '0'),
+             (3, 3, 1) => ('3', '3', '1'),
++            (3, 3, _) => ('3', '3', 'x'),
+             _ => version_error(),
+         };
+ 
+@@ -272,7 +273,7 @@ fn version_error() -> ! {
+         "
+ 
+ This crate is only compatible with OpenSSL 1.0.1 through 1.1.1, or LibreSSL 2.5
+-through 3.3.1, but a different version of OpenSSL was found. The build is now aborting
++through 3.3.x, but a different version of OpenSSL was found. The build is now aborting
+ due to this version mismatch.
+ 
+ "
+-- 
+2.31.1
+

diff --git a/dev-lang/rust/files/1.54.0-parallel-miri.patch b/dev-lang/rust/files/1.54.0-parallel-miri.patch
new file mode 100644
index 0000000..68239d9
--- /dev/null
+++ b/dev-lang/rust/files/1.54.0-parallel-miri.patch
@@ -0,0 +1,43 @@
+From a789b49e4c0e7d742cc39713484596293d844537 Mon Sep 17 00:00:00 2001
+From: hyd-dev <yd-huang@outlook.com>
+Date: Fri, 30 Jul 2021 21:28:34 +0800
+Subject: [PATCH] Use `Lrc` instead of `Rc` in `MiriCompilerCalls::config()`
+
+---
+ src/bin/miri.rs | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/src/tools/miri/src/bin/miri.rs b/src/tools/miri/src/bin/miri.rs
+index 5a8f07263..18c393815 100644
+--- a/src/tools/miri/src/bin/miri.rs
++++ b/src/tools/miri/src/bin/miri.rs
+@@ -1,5 +1,6 @@
+ #![feature(rustc_private, bool_to_option, stmt_expr_attributes)]
+ 
++extern crate rustc_data_structures;
+ extern crate rustc_driver;
+ extern crate rustc_errors;
+ extern crate rustc_hir;
+@@ -12,12 +13,12 @@ use std::convert::TryFrom;
+ use std::env;
+ use std::num::NonZeroU64;
+ use std::path::PathBuf;
+-use std::rc::Rc;
+ use std::str::FromStr;
+ 
+ use hex::FromHexError;
+ use log::debug;
+ 
++use rustc_data_structures::sync::Lrc;
+ use rustc_driver::Compilation;
+ use rustc_errors::emitter::{ColorConfig, HumanReadableErrorType};
+ use rustc_hir::{self as hir, def_id::LOCAL_CRATE, Node};
+@@ -42,7 +43,7 @@ impl rustc_driver::Callbacks for MiriCompilerCalls {
+                 // HACK: rustc will emit "crate ... required to be available in rlib format, but
+                 // was not found in this form" errors once we use `tcx.dependency_formats()` if
+                 // there's no rlib provided, so setting a dummy path here to workaround those errors.
+-                Rc::make_mut(&mut crate_source).rlib = Some((PathBuf::new(), PathKind::All));
++                Lrc::make_mut(&mut crate_source).rlib = Some((PathBuf::new(), PathKind::All));
+                 crate_source
+             };
+         });

diff --git a/dev-lang/rust/rust-1.54.0.ebuild b/dev-lang/rust/rust-1.54.0.ebuild
new file mode 100644
index 0000000..5295278
--- /dev/null
+++ b/dev-lang/rust/rust-1.54.0.ebuild
@@ -0,0 +1,680 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{7..9} )
+
+inherit bash-completion-r1 check-reqs estack flag-o-matic llvm multiprocessing \
+	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 ~ppc64 ~riscv ~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/${SRC}
+	verify-sig? ( https://static.rust-lang.org/dist/${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-1 BSD-2 BSD-4 UoI-NCSA"
+
+IUSE="clippy cpu_flags_x86_sse2 debug doc miri nightly parallel-compiler rls rustfmt system-bootstrap system-llvm test wasm ${ALL_LLVM_TARGETS[*]}"
+
+# Please keep the LLVM dependency block separate. Since LLVM is slotted,
+# we need to *really* make sure we're not pulling more than one slot
+# simultaneously.
+
+# How to use it:
+# List all the working slots in LLVM_VALID_SLOTS, newest first.
+LLVM_VALID_SLOTS=( 12 )
+LLVM_MAX_SLOT="${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}[${_x}(-)] )"
+	done
+	LLVM_DEPEND+=" )"
+done
+unset _s _x
+LLVM_DEPEND+=" )
+	<sys-devel/llvm-$(( LLVM_MAX_SLOT + 1 )):=
+	wasm? ( sys-devel/lld )
+"
+
+# 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/${PV}/src/stage0.txt
+RUST_DEP_PREV="$(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? ( app-crypt/openpgp-keys-rust )
+"
+
+DEPEND="
+	>=app-arch/xz-utils-5.2
+	net-misc/curl:=[http2,ssl]
+	sys-libs/zlib:=
+	dev-libs/openssl:0=
+	elibc_musl? ( sys-libs/libunwind:= )
+	system-llvm? ( ${LLVM_DEPEND} )
+"
+
+# we need to block older versions due to layout changes.
+RDEPEND="${DEPEND}
+	app-eselect/eselect-rust
+	!<dev-lang/rust-1.47.0-r1
+	!<dev-lang/rust-bin-1.47.0-r1
+"
+
+REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )
+	miri? ( nightly )
+	parallel-compiler? ( nightly )
+	test? ( ${ALL_LLVM_TARGETS[*]} )
+	wasm? ( llvm_targets_WebAssembly )
+	x86? ( cpu_flags_x86_sse2 )
+"
+
+# we don't use cmake.eclass, but can get a warnings
+CMAKE_WARN_UNUSED_CLI=no
+
+QA_FLAGS_IGNORED="
+	usr/lib/${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}/${PV}/lib/rustlib/.*/lib/lib.*.so
+"
+
+# causes double bootstrap
+RESTRICT="test"
+
+VERIFY_SIG_OPENPGP_KEY_PATH=${BROOT}/usr/share/openpgp-keys/rust.asc
+
+PATCHES=(
+	"${FILESDIR}"/1.47.0-ignore-broken-and-non-applicable-tests.patch
+	"${FILESDIR}"/1.49.0-gentoo-musl-target-specs.patch
+	"${FILESDIR}"/1.53.0-rustversion-1.0.5.patch # https://github.com/rust-lang/rust/pull/86425
+	"${FILESDIR}"/1.54.0-parallel-miri.patch # https://github.com/rust-lang/miri/pull/1863
+	"${FILESDIR}"/1.54.0-libressl.patch
+)
+
+S="${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 ${rustc_version} to build"
+	fi
+}
+
+pre_build_checks() {
+	local M=4096
+	# multiply requirements by 1.5 if we are doing x86-multilib
+	if use amd64; then
+		M=$(( $(usex abi_x86_32 15 10) * ${M} / 10 ))
+	fi
+	M=$(( $(usex clippy 128 0) + ${M} ))
+	M=$(( $(usex miri 128 0) + ${M} ))
+	M=$(( $(usex rls 512 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}[${LLVM_TARGET_USEDEPS// /,}]"
+}
+
+pkg_pretend() {
+	pre_build_checks
+}
+
+pkg_setup() {
+	pre_build_checks
+	python-any-r1_pkg_setup
+
+	export LIBGIT2_NO_PKG_CONFIG=1 #749381
+
+	use system-bootstrap && bootstrap_rust_version_check
+
+	if use system-llvm; then
+		llvm_pkg_setup
+
+		local llvm_config="$(get_llvm_prefix "${LLVM_MAX_SLOT}")/bin/llvm-config"
+		export LLVM_LINK_SHARED=1
+		export RUSTFLAGS="${RUSTFLAGS} -Lnative=$("${llvm_config}" --libdir)"
+	fi
+}
+
+src_prepare() {
+	if ! use system-bootstrap; then
+		local rust_stage0_root="${WORKDIR}"/rust-stage0
+		local rust_stage0="rust-${RUST_STAGE0_VERSION}-$(rust_abi)"
+
+		"${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig \
+			--without=rust-docs --destdir="${rust_stage0_root}" --prefix=/ || die
+	fi
+
+	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\""
+		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="${rust_targets#,}"
+
+	local tools="\"cargo\","
+	if use clippy; then
+		tools="\"clippy\",$tools"
+	fi
+	if use miri; then
+		tools="\"miri\",$tools"
+	fi
+	if use rls; then
+		tools="\"rls\",\"analysis\",\"src\",$tools"
+	fi
+	if use rustfmt; then
+		tools="\"rustfmt\",$tools"
+	fi
+
+	local rust_stage0_root
+	if use system-bootstrap; then
+		local printsysroot
+		printsysroot="$(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="$(rust_abi)"
+
+	cat <<- _EOF_ > "${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 = $(toml_usex system-llvm)
+		[build]
+		build-stage = 2
+		test-stage = 2
+		doc-stage = 2
+		build = "${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 = [${tools}]
+		verbose = 2
+		sanitizers = false
+		profiler = false
+		cargo-native-static = false
+		[install]
+		prefix = "${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 = ["gz"]
+	_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_
+		# librustc_target/spec/linux_musl_base.rs sets base.crt_static_default = true;
+		if use elibc_musl; then
+			cat <<- _EOF_ >> "${S}"/config.toml
+				crt-static = false
+			_EOF_
+		fi
+		if use system-llvm; then
+			cat <<- _EOF_ >> "${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
+
+	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.${cross_rust_target}]
+			cc = "${cross_toolchain}-gcc"
+			cxx = "${cross_toolchain}-g++"
+			linker = "${cross_toolchain}-gcc"
+			ar = "${cross_toolchain}-ar"
+		_EOF_
+		if use system-llvm; then
+			cat <<- _EOF_ >> "${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:-}"
+	env | grep "CARGO_TARGET_.*_RUSTFLAGS="
+	cat "${S}"/config.env || die
+	echo
+	einfo "config.toml contents:"
+	cat "${S}"/config.toml || die
+	echo
+}
+
+src_compile() {
+	# we need \n IFS to have config.env with spaces loaded properly. #734018
+	(
+	IFS=$'\n'
+	env $(cat "${S}"/config.env) 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 ${t}"
+		if ! (
+				IFS=$'\n'
+				env $(cat "${S}"/config.env) 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: ${failed[@]}"
+		die "aborting due to test failures"
+	fi
+}
+
+src_install() {
+	(
+	IFS=$'\n'
+	env $(cat "${S}"/config.env) 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 rls && symlinks+=( rls )
+	use rustfmt && symlinks+=( rustfmt cargo-fmt )
+
+	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"
+		$(use amd64 && usex elibc_musl 'CARGO_TARGET_X86_64_UNKNOWN_LINUX_MUSL_RUSTFLAGS="-C target-feature=-crt-static"' '')
+		$(use arm64 && usex elibc_musl 'CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_RUSTFLAGS="-C target-feature=-crt-static"' '')
+	_EOF_
+
+	rm -rf "${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-${P}"
+	fi
+	if use rls; then
+		echo /usr/bin/rls >> "${T}/provider-${P}"
+	fi
+	if use rustfmt; then
+		echo /usr/bin/rustfmt >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
+	fi
+
+	insinto /etc/env.d/rust
+	doins "${T}/provider-${P}"
+}
+
+pkg_postinst() {
+	eselect rust update
+
+	if has_version sys-devel/gdb || has_version dev-util/lldb; then
+		elog "Rust installs a helper script for calling GDB and LLDB,"
+		elog "for your convenience it is installed under /usr/bin/rust-{gdb,lldb}-${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
+}