dev-lang/rust{,-bin}: Add 1.54.0

These are the the old ebuilds, updated to be slotted.

Other changes:

- `USE=rls` was dropped at some point, this is now
  hard-enabled.
- As the LLVM is far too old for Gentoo we are using the bundled LLVM
  exclusively.

In particular, dev-lang/rust:1.54.0 forms an important part of the
upcoming 'bootstrap Rust without Rust binaries' path.

Bug: https://bugs.gentoo.org/943706
Closes: https://github.com/gentoo/gentoo/pull/39464
Signed-off-by: Matt Jolly <kangie@gentoo.org>

9 files changed, 1325 insertions, 0 deletions

diff --git a/dev-lang/rust-bin/Manifest b/dev-lang/rust-bin/Manifest
index 68ff06eb0605..e0e37d3a47e2 100644
--- a/dev-lang/rust-bin/Manifest
+++ b/dev-lang/rust-bin/Manifest
@@ -1,3 +1,37 @@
+DIST rust-1.54.0-aarch64-unknown-linux-gnu.tar.xz 231424908 BLAKE2B 6c403acd4b6b27208f95eb3fbfee5c8e7a63f3314f29ea7498dc0a4ae720d77c249c9ebc02a95d50278ac7f07b8d943b1c9c5e1561858f72ad1d8cdb29b779cc SHA512 3e6f638a35ed391f5393be7c92ef2560ed6bb26af1ea6ebf784bfadd3e153d1effd88fe49128eb98f5ec2ced7a65f3f4a596db71b9c4eca90429e50a8f168d11
+DIST rust-1.54.0-aarch64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B f655d6f53a580041642871abd10993b771835770bebb6de1ff1dcc9b250ae52f862212feece533a9932c6efb0c3d02769cbbb03114d941c7e8d3117e1e23ce75 SHA512 d9508ae502e26694f83c04bbea3f95aeeee7990e703c8bb8be9ba098e0df86a39272022e1a94f8852ed23b8378ecb338dbd87ef226da444e29ccf7fb1f44e5f6
+DIST rust-1.54.0-aarch64-unknown-linux-musl.tar.xz 231629132 BLAKE2B 339e341eadd2cb0c763eb00b5a6750a1082da26bcae1b3c06459c99c64b4babf4aec5173222187eed7271e3c5847da47b49e6ab75674161b6e28297bb62ec781 SHA512 f0e20c079e4351fac5e8d635a37502e833a56fd216fd015117fb12be8b72e022bce946ec8e1612b320530dd186b1702b4384e74d64a479099db4562bcfc68453
+DIST rust-1.54.0-aarch64-unknown-linux-musl.tar.xz.asc 801 BLAKE2B 5aa9872ad96668d392c1aecf7f54c171e7bef6e17f65efc6c3fff7eee8dd7fc3eacee03e6544cdc27c5d34ea946d1a61aca6298c91812e9f35c391211b563506 SHA512 07694566ae33492df31083887fe9b7d43fb9f7c469ccd2fe9c77d3c8d3bd6b58ddc5e185462e982f78d63db39703a60986acaad51f953ea7434bcd9432a96946
+DIST rust-1.54.0-arm-unknown-linux-gnueabi.tar.xz 209386412 BLAKE2B f33b802bdfa3cbafdd86eff2d43e0af99e54777b1a26f1106016a8bdc4c06b5cdac8810ac68785f6da4cbe6a6d7fa74c13a855a5ef9c5703b16a2100ef60f2df SHA512 5f68879abd5da5d37b555b0b6ca5850d68663878bd23b5f6a31efd0a9dd43809c4d413154f8f343688eca23a96adbd08fcb3132831b848690261964d6a24e160
+DIST rust-1.54.0-arm-unknown-linux-gnueabi.tar.xz.asc 801 BLAKE2B 7b90cdac8d068bcd565b42bed2289deff1490ae51cb65bbf2f0c308f6187e4fcfd98898e8e590ade2c2af7f10080821a417445e5c3046b4e39e0099c32e62624 SHA512 35bc49bc4140207af140e561023826e565751e47bbee6c1fd374bd7a992b6499051f4d84ca12e17101ea552bcafd6b96b111af888cd891f6dc18fceda11c83c8
+DIST rust-1.54.0-arm-unknown-linux-gnueabihf.tar.xz 209102396 BLAKE2B 1190da5c96336a121b4d4f92dba36c52c5f2bb0b26fdd92ca92ae4954256aaa375ea174c9669a285365ff02d4f3cadbf2d2ac92b847b00e10606e3832629a864 SHA512 ca38f1948b02008c1e9355c12f6d1fd3721ae9c06e686a09a7eea48670d889879ac0f81c462d21f467d600fc0972b920219e7378f7ba438e756cbc9b419a5f43
+DIST rust-1.54.0-arm-unknown-linux-gnueabihf.tar.xz.asc 801 BLAKE2B 9f01100804d72dc7afb7660277daa5a0f0cd96e478a7dc5a242360d07b25a22c5769727a67a46d63f3283e22e89ef5a6f6f6c48ac46f01075e2d908bf681be5d SHA512 316662676cf52a2e58c6cbeb46152da3919e54b0385c33a8fd1d46c25e71604f7803174278f80d4cb72cae54829ba00e3c4ba58001b43cc1148347f1788fdb02
+DIST rust-1.54.0-armv7-unknown-linux-gnueabihf.tar.xz 217891252 BLAKE2B 657f366344fe911c5d93585ee0b1063815fb158069136c742512f21d3b47c64e42555d4e52ba305e5ddebbb1fb37fa8ba8ebc36f9a9e5fe5fe7ffdb31472e012 SHA512 0f4f4e075299cd369b4b53a425e9b290cd9cedca6a88878c6a4ae0487fe976b15bea0c8b92e7e376f77dc370552d95d738e99b7fa184a8e2c0e5ab94d65e7595
+DIST rust-1.54.0-armv7-unknown-linux-gnueabihf.tar.xz.asc 801 BLAKE2B c23e12a70df5e58dfca0e9c66432844424dc166cbc7dfeef4f692ba076ba687fd871bbbb5d37ed82ed5662ada170520c56c426f89be4fa07a0c88cfb773fe91b SHA512 14a5674ed5862b6cd3ddcd3efff4ab1298285bc0d5604a869e74e055a319401b9bf48a60d44583ddeb2230dcfab2e5584e5149947fbc40d97c112a6dae51745a
+DIST rust-1.54.0-i686-unknown-linux-gnu.tar.xz 226774108 BLAKE2B c56fb6ef24cda0c89b76403a38893a32382b09be8a8d08b066fbd437ac0a73a7d00af175c59bb7af6e6f5d8a74324e10afed2ea35d830f9f96f5ceaa4ec345d6 SHA512 15bc0c31a306aa1e2b16fec7f97963ca291b2632664c49add4281d3244054b2e2f51b0ade86a9d63db87124071fa25bd7d5e662acf4c30cf3267eb56da4a1f1f
+DIST rust-1.54.0-i686-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 4d53a7760abd54973ef8ce95c10671db41136d7031a25ea0c0362feb65ce5755223d60a01c3418b69b902feebf75651bc4379ea66f98c862a573a8774a5e99c2 SHA512 e3dcef4d17bea43a1b0858da52e899d7a14db8ee7b9e3f506e9297dd0aba910d3808c25163a3f95698f32d25a3f128bb1759a808c84b8c75404300f60198fbd5
+DIST rust-1.54.0-mips-unknown-linux-gnu.tar.xz 147938432 BLAKE2B 38e7b768773cef9e3cfe707a716ba59ed67e2bbefe59db5531b06489131df219eba6a46eeb5c06bfd6d943fa4453f3d6f4b869725108fd2e069ab6ebbfa3d08b SHA512 aab52c26bd80b058772e0cd815bbd5ca0ab0fb10fa0ba43c07fc6151ec6e99d7ab48613a3e5cbdcb8f00b83108a716bd8b9f5d6f2c8518499b2482aa4d423a91
+DIST rust-1.54.0-mips-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 05f4c8ee719ff857aa0a53661f6483c450a561905150217f886c25cf5c3e8dc3a36ebe2da38c75f843e3de4274d92c0c274906af40a94a6ecb122a9d38703e7f SHA512 6ba884e92b0ead2049f639405308ab6363268a8b42f827c9ecbfc5b16a0755bd1d345d989243f28662ce8c53611fb5984104001b3edec7b2dc22cc914970a7e5
+DIST rust-1.54.0-mips64-unknown-linux-gnuabi64.tar.xz 157458264 BLAKE2B cd68d03e058922a020665a35765913f3405b0c0d5c7e252da1dc63b4b6af27d31fa5ce7eee562635241baea422c84d7e2a9539a79e6ae152794aeb9636e97a46 SHA512 74a85d869141fc941bf4f9821945ce0efd0169415fc209cc2288015d4e358716380cf91e41342a231cd34ce88321f24c4d20fffec3be702498cec3846a14298b
+DIST rust-1.54.0-mips64-unknown-linux-gnuabi64.tar.xz.asc 801 BLAKE2B aaca9b8e5007e0efc459a04ab95e6a3d76ab6cf177964acd4bb148f09ffac4f9c9bfba4ca4834e1ccc9505c259511f45ed1830285307388d79ac66b8dcddbbc5 SHA512 8d5d2a1200af550cdbc85b2dc847e524ada7f16fbc5f4c29d0e9e4e8c0067e04daaa273a99c14e6ad1a7d622e4f9d3da720b41f4ee75ff50cf2153cc190642e5
+DIST rust-1.54.0-mips64el-unknown-linux-gnuabi64.tar.xz 159901680 BLAKE2B d6ef3d514dce43878cb1f305ac0be9d2558c709adb61668ac8685964b663b08cd81793df893d1b5cd7edbf539823a9976dce75ac5bb1bf340246d33e03a0e7fe SHA512 9470fd938cb6b4c0ddb728428fa7d1d86b4bb2ca43563fbee9b21b82bc76f3350620b36a988ac0d9e274dd987c91ff0dc0a99ec5085cc8999257da8813889445
+DIST rust-1.54.0-mips64el-unknown-linux-gnuabi64.tar.xz.asc 801 BLAKE2B 618073a30586c640ca3df15b377c16ae95e6599de68107f260b728dfeef4d95c13a07923550722e61b1afeffb89e8adc01047de32e60c3b40ee7ab4e2700e0b0 SHA512 29e35ba575441dc441529f154496e99e9db83ac6f7c19129085091f33cf5c7882235f60f27d9922d9873a1476cecbe70e7694cf6b865315c022758ba80959738
+DIST rust-1.54.0-mipsel-unknown-linux-gnu.tar.xz 154497208 BLAKE2B 40ab905d6088cb2e4364e2e6a0e4fb257365af05302abab81604d78b62bc255377ff7088884d9222f2997312befbf8efcd7f1821fd4bcf2dbae149c70cfa1224 SHA512 c61abff1df5e787d330abe4b3cbe8c3e67f02974dba3eb0fa4cbfeb0a74a956abb48199301e7f9af915b9be5a0d6ff7771198414458da52af18e9a74cab52620
+DIST rust-1.54.0-mipsel-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B f525e1849a0c753a077ffadb7dd0b1d67b5fb369c061ec895878fbbd8d377572db2b5bb1fb5e1a24bcef61eb3f80b6f6bbb3d93b611e6b00e535b2e516ae0681 SHA512 d55ac3c329b20bd4e7f095ee2c710bd5c5be825ae517561bf670b96626427db39d362be553c3b92c90710ab8d9b677d2367aa85a397a4568c1146e0dff10cda6
+DIST rust-1.54.0-powerpc-unknown-linux-gnu.tar.xz 164089736 BLAKE2B a4e3c0b6f78444a2f48e842468e828e517d32fb1b62b2ad0c0000bee97ac5730977c8dacdc614ea2182fabf25e23804efed53b493ec611dd5d4d5d8ec237feb4 SHA512 ae8ba40e5843bd3ecc25156521f7e7cc7c869457151896371fd5faa3bc565ff9a6b7d437e3587dd9f1e87e9fa19463259ec18fe03badbd89372c11ddc7b577ee
+DIST rust-1.54.0-powerpc-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B ac59496efd850b618b4013d0cbe09172f5828e60ae07afd0b233749ff3c1699e524e3a4fa93fea906f79dbc44f1d94ad52bf3952c2a4014d9d2653702d86349f SHA512 daf5da203c079cfca365990b0111d9df16defb49e1bc9c24407e423873992a9920d88fc2a097e1df8d2b03e05d1118bb3786e908d4f46fb282357c62d24df88c
+DIST rust-1.54.0-powerpc64-unknown-linux-gnu.tar.xz 178088044 BLAKE2B e059572d2044aa05683d29370c395b714f25d0c7ec820bcb133d29667e9066b82e62e11000a3183a66cbeb87625517284d12263c2ea0eec60dc537ba3c78e6b9 SHA512 543dcaf3bab3343e796b3535a3b4e12d77227006e64e91b885f599fd94ffc9c1cc8d8c5ce3b788df0399c79dc785ff7c8dc375ae20d3b4156d1b16a7dec5a371
+DIST rust-1.54.0-powerpc64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 663a3f7027c61f4a7e38bd0a72ffa55b9de2673cc0d48e94bb964e950b8a356b01011e94904efb3525c0ee2cd57e82ce8af50d2360a7e5b200b6eefeb4580927 SHA512 f0d03c2c3da60731cc05b9370df53766d6fc14ea3d49edbe0a7e809e35560a7cf06c4d8291896a604fdaddb665d117c53ec93671a0402dc093442ed3cbf4c596
+DIST rust-1.54.0-powerpc64le-unknown-linux-gnu.tar.xz 187058704 BLAKE2B bd90f56b50024cfce5bbfb5e84d28c06687b6a5524b1964064b1e53111b49805815d3dec47fd035f9e1d78c426d0b0689ac7c8baa1044cfbb9343da452d77694 SHA512 9d13d53a1ef106b190161096122da1bc9090dc495604c8ddbb9d6b02323e6b7c9b8bec82dfe33ae6cf1820e986811a701f7a4d4c3eb7c297c777fe3563b8e9ee
+DIST rust-1.54.0-powerpc64le-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 3cfdbc8958b7025b6b3b76a6aef603820418c3aa2ee63c0a257dcd36004ca90203abb1b60a921310a9aea10545e32a11291a9d9baf3caf3e2b5a27ab4724bd9f SHA512 3ece925a1e3797cc6bf6ce44a3ca4768f57bc9bc3bb1261d6a82905907c635bb20ea7f5eeed062ff02582b035a22508990bfe83640006fe77fde8e699d5d55cc
+DIST rust-1.54.0-riscv64gc-unknown-linux-gnu.tar.xz 180939260 BLAKE2B 856a431c22f286d42069dcd34101cc6e539004024619ba061a39d3bcc48834ce0002e2499466f976b81a7aa7d47f1c3249f2b21c69233df4d7d0940d80f5761c SHA512 5af3bbd68706bff03d51daf76551830810a8e225e8f0a9a394fd29a4fe9f0389bed3e0d94333483e089b4cce375c0320cc6ae360ddc4f08fca0ae80e671ba2a4
+DIST rust-1.54.0-riscv64gc-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 366ef8f21801cc510b22217c4d974343ccb9f941faf08fba584b3f068a9d3128e3a15f5dc1400ed3749166afb622bb3aaafcf15381a0f2a5b60767db6ca9d3f2 SHA512 fdafdedb8f667124cb71eb44a6a61b1cef1df0baab385d2f5c674d900cd24139e555aa30df99f9d496b5fb30031bb86a43b118fafa083a24e2be10126e68df67
+DIST rust-1.54.0-s390x-unknown-linux-gnu.tar.xz 186478732 BLAKE2B 3d3ef6c37e0c24a4622814c51bfe1a5093f261e393a3dbb9c5eda023f8d0a63ebf0080cba5d43c8448b79503aecc62f04ccc18f040562db57dcd2ff1cb243124 SHA512 5033e3f61af7de144c3ed441f9fdf9f0c00a837d018ec3c0d4ef67f032e7f808d2dcc586e7b85b733ff9bc2196c2e05fcd104b3daa85698cc0e4e9ab69b870bd
+DIST rust-1.54.0-s390x-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B b375bf65d9bef4a54792f93ac52fa408c85407d6aa646b64ee85d9220fdd9d7dda76c1e118def5262f5ab8fd9b7637c5d681d37c50d9e917eb6ba0d5b25e42fc SHA512 3bd16cdc61033d6e38de595ac145f0e7cebf3c3455491325ba89de8067cf6096beac7f00b3e4dc942cf4bf0f5ab59f6233b5d24f0ebf97ab3562260182baae4c
+DIST rust-1.54.0-x86_64-unknown-linux-gnu.tar.xz 136593024 BLAKE2B 2f10b636982f335a200149d11c6cf212adb3e27f7d3eda9069881565a07f29aa6f2010ca786c3746190a3bbb8b8d79d531bee906e21e21f2c132f6c1e4198e17 SHA512 d2aad46556b164dac54be76a2459789fc686781b157f0c7d647464db3b03cbb902c8c4de5c6ef2e0811a94bdbba2973c93698c4f3a7c6ba294c0e652994e3fdc
+DIST rust-1.54.0-x86_64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B cdfb03b6a75cd86e565b0b502cbd72636b67a92f9039fb148ca19fbef3d0775616ff03420cebeffe36db3d1d1db75e7e77ac473841a399dc2a218df09598b2eb SHA512 144ec35e82194d16cbf4e56c34dc25aa83d8ec8021052cc471ec85f169b74bd9394ec52c21c898d3ac0b966fd7463cd567d729eec9152f5fb8307c87eb02877d
+DIST rust-1.54.0-x86_64-unknown-linux-musl.tar.xz 267840732 BLAKE2B 32e50467c4ee88cc502ea7e3e8cda9cbd89bcb6b7fac0c84b1509abf0a5c551d43f6522d148f54e4af65e0738b1dd13bfebaaba7e863909047fd53cac03bbbac SHA512 131f4743e5990c3e1ec2b7a0d1eb107a0e5264e6ce387cf4aa6db9a1693d0fe4a42de5722072708d72d580500d566f7772513974ce5589ea07997374fbdefdb9
+DIST rust-1.54.0-x86_64-unknown-linux-musl.tar.xz.asc 801 BLAKE2B 8b9194ce2b172cdd1fecbe064ddaa0047d30ddeafeaa903637e65775b139207c47da7eb17475ed17b1792b7c872ae71058c1f2cb7d59bd2d42a78cc590f9ec03 SHA512 2aaa42cab5272b6ee2ad0d3cd67b7dc648af68c5b9b5fd8f816688c0ebcc2cb0a24ac8c2a23dda5f17f7ba04f544625b3b03b22882c9122852bba680d8155afc
 DIST rust-1.71.1-aarch64-unknown-linux-gnu.tar.xz 209839296 BLAKE2B da65e966a6bd8c6a8a13e5ab747da2a8d9b55f90fc20c1bd041ccc1a2f4e2d11d50d2ed9cc7f3a470e7f886ec8b891ef98ea1295491414d5afeae7f83fa3a555 SHA512 a2ea1383a6ea965e4b0c3a7c648bb357fb531a6984418756abcff3c526ccd9221a28aeedd11b65180fd166575e07a00151460dbc15e3b132a0bcac643911d242
 DIST rust-1.71.1-aarch64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 52d1fbdba32db7ac2578615fd10a3db1da84441274bb190624e517aec67279c7330f7c6b7fa0835d8e1cd8f578d34952813228a6a221e41c4193e9a079cc6fb6 SHA512 63cbbdd9a73f0223444565b60f59765a734633ef8e93843639969b96fb67550b85fe58079d486a927174f95619f0d6fdfe3f3b84d871f776bc48986be7965238
 DIST rust-1.71.1-aarch64-unknown-linux-musl.tar.xz 193170880 BLAKE2B 26384119108f4503d35f79fc5401c46e1eee326eca4dc6cc282949d2f195928fda5d3bf56c0509b04fdaa3e7c3c47f4ba44b2b82a60b02f7bc520360b0433efe SHA512 3e79692cd4dba512516eb48970dc9711448c33e1d7a5ebe7c5fadaed7f053ae9c1a8e6efcd1713f87dd84107a37b0fb21b1246e0d5c3e0dab677e5c7ed210825
diff --git a/dev-lang/rust-bin/rust-bin-1.54.0.ebuild b/dev-lang/rust-bin/rust-bin-1.54.0.ebuild
new file mode 100644
index 000000000000..ce1061857a9f
--- /dev/null
+++ b/dev-lang/rust-bin/rust-bin-1.54.0.ebuild
@@ -0,0 +1,188 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit prefix rust-toolchain toolchain-funcs verify-sig multilib multilib-minimal
+
+MY_P="rust-${PV}"
+
+DESCRIPTION="Systems programming language from Mozilla"
+HOMEPAGE="https://www.rust-lang.org/"
+SRC_URI="$(rust_all_arch_uris ${MY_P})"
+
+LICENSE="|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA"
+SLOT="${PV}"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~x86"
+IUSE="big-endian clippy cpu_flags_x86_sse2 doc prefix rustfmt"
+
+RDEPEND=">=app-eselect/eselect-rust-20190311"
+BDEPEND="
+	prefix? ( dev-util/patchelf )
+	verify-sig? ( sec-keys/openpgp-keys-rust )
+"
+
+REQUIRED_USE="x86? ( cpu_flags_x86_sse2 )"
+
+QA_PREBUILT="
+	opt/${P}/bin/.*
+	opt/${P}/lib/.*.so
+	opt/${P}/libexec/.*
+	opt/${P}/lib/rustlib/.*/bin/.*
+	opt/${P}/lib/rustlib/.*/lib/.*
+"
+
+# An rmeta file is custom binary format that contains the metadata for the crate.
+# rmeta files do not support linking, since they do not contain compiled object files.
+# so we can safely silence the warning for this QA check.
+QA_EXECSTACK="opt/${P}/lib/rustlib/*/lib*.rlib:lib.rmeta"
+
+VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/rust.asc
+
+pkg_pretend() {
+	if [[ "$(tc-is-softfloat)" != "no" ]] && [[ ${CHOST} == armv7* ]]; then
+		die "${CHOST} is not supported by upstream Rust. You must use a hard float version."
+	fi
+}
+
+src_unpack() {
+	verify-sig_src_unpack
+	mv "${WORKDIR}/${MY_P}-$(rust_abi)" "${S}" || die
+}
+
+patchelf_for_bin() {
+	local filetype=$(file -b ${1})
+	if [[ ${filetype} == *ELF*interpreter* ]]; then
+		einfo "${1}'s interpreter changed"
+		patchelf ${1} --set-interpreter ${2} || die
+	elif [[ ${filetype} == *script* ]]; then
+		hprefixify ${1}
+	fi
+}
+
+multilib_src_install() {
+	if multilib_is_native_abi; then
+
+	# start native abi install
+	pushd "${S}" >/dev/null || die
+	local analysis std
+	analysis="$(grep 'analysis' ./components)"
+	std="$(grep 'std' ./components)"
+	local components="rustc,cargo,${std},rls-preview,${analysis}"
+	use doc && components="${components},rust-docs"
+	use clippy && components="${components},clippy-preview"
+	use rustfmt && components="${components},rustfmt-preview"
+	./install.sh \
+		--components="${components}" \
+		--disable-verify \
+		--prefix="${ED}/opt/${P}" \
+		--mandir="${ED}/opt/${P}/man" \
+		--disable-ldconfig \
+		|| die
+
+	if use prefix; then
+		local interpreter=$(patchelf --print-interpreter "${EPREFIX}/bin/bash")
+		ebegin "Changing interpreter to ${interpreter} for Gentoo prefix at ${ED}/opt/${P}/bin"
+		find "${ED}/opt/${P}/bin" -type f -print0 | \
+			while IFS=  read -r -d '' filename; do
+				patchelf_for_bin ${filename} ${interpreter} \; || die
+			done
+		eend $?
+	fi
+
+	local symlinks=(
+		cargo
+		rls
+		rust-gdb
+		rust-gdbgui
+		rust-lldb
+		rustc
+		rustdoc
+	)
+
+	use clippy && symlinks+=( clippy-driver cargo-clippy )
+	use rustfmt && symlinks+=( rustfmt cargo-fmt )
+
+	einfo "installing eselect-rust symlinks and paths"
+	local i
+	for i in "${symlinks[@]}"; do
+		# we need realpath on /usr/bin/* symlink return version-appended binary path.
+		# so /usr/bin/rustc should point to /opt/rust-bin-<ver>/bin/rustc-<ver>
+		local ver_i="${i}-bin-${PV}"
+		ln -v "${ED}/opt/${P}/bin/${i}" "${ED}/opt/${P}/bin/${ver_i}"
+		dosym "../../opt/${P}/bin/${ver_i}" "/usr/bin/${ver_i}"
+	done
+
+	# symlinks to switch components to active rust in eselect
+	dosym "../../../opt/${P}/lib" "/usr/lib/rust/lib-bin-${PV}"
+	dosym "../../../opt/${P}/man" "/usr/lib/rust/man-bin-${PV}"
+	dosym "../../opt/${P}/lib/rustlib" "/usr/lib/rustlib-bin-${PV}"
+	dosym "../../../opt/${P}/share/doc/rust" "/usr/share/doc/${P}"
+
+	# musl logic can be improved a bit, but fine as is for now
+	cat <<-_EOF_ > "${T}/50${P}"
+	LDPATH="${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"' '')
+	$(use arm64 && usex elibc_musl 'CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_RUSTFLAGS="-C target-feature=-crt-static"' '')
+	_EOF_
+	doenvd "${T}/50${P}"
+
+	# note: eselect-rust adds EROOT to all paths below
+	cat <<-_EOF_ > "${T}/provider-${P}"
+	/usr/bin/cargo
+	/usr/bin/rustdoc
+	/usr/bin/rust-gdb
+	/usr/bin/rust-gdbgui
+	/usr/bin/rust-lldb
+	/usr/lib/rustlib
+	/usr/lib/rust/lib
+	/usr/lib/rust/man
+	/usr/share/doc/rust
+	/usr/bin/rls
+	_EOF_
+
+	if use clippy; then
+		echo /usr/bin/clippy-driver >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-clippy >> "${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-${P}"
+	popd >/dev/null || die
+	#end native abi install
+
+	else
+		local rust_target
+		rust_target="$(rust_abi $(get_abi_CHOST ${v##*.}))"
+		dodir "/opt/${P}/lib/rustlib"
+		cp -vr "${WORKDIR}/rust-${PV}-${rust_target}/rust-std-${rust_target}/lib/rustlib/${rust_target}"\
+			"${ED}/opt/${P}/lib/rustlib" || die
+	fi
+
+	# BUG: installs x86_64 binary on other arches
+	rm -f "${ED}/opt/${P}/lib/rustlib/"*/bin/rust-llvm-dwp || die
+}
+
+pkg_postinst() {
+	eselect rust update
+
+	elog "Rust installs a helper script for calling GDB now,"
+	elog "for your convenience it is installed under /usr/bin/rust-gdb-bin-${PV}."
+
+	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
+}
diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index cd91fc13a0e8..52228c4903d0 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -1,3 +1,5 @@
+DIST openssl-0.10.35.crate 204462 BLAKE2B fb58a3be883bac3d5aa3e971172a281a80e9e100c51585db3d2828ecfd89d0b3b19edfacba2039056fa3aefb79717e03cd2ecbf932afb1acac2e74e1c29d3551 SHA512 5ebe4626a894ccc6e5c159cef72357654aa1a20dcc863fdab495f10a574b49b0b9d4e85a069b8b9297544ea0d09fd88a976396c3a8e8faaee9d01d79d943126f
+DIST openssl-sys-0.9.65.crate 54405 BLAKE2B f0e09accf076653f172199d36bfe0b7547a738f962e9ee8c15563c4d27587aade3e44830022a1787dfc932ae1f162336e3a110a34b1459656631c7ea50e58b75 SHA512 4c14ff5258a35b86e35d352c5702c90e1f70954c8f33d17160694b63305057b97da3ac6846d3e8f8e7293c40f15b76effd1e34fad4be613b8d815b90148406f7
 DIST rust-1.70.0-aarch64-unknown-linux-gnu.tar.xz 212261108 BLAKE2B 56e15d01ea0e84c51ca3d4fc292c124536472e9c3e6d9ae13ab524e520865117b36621eca5072b961831ee6ad3077abd84afa9e092483095234b7ab2ddcae769 SHA512 d64eb19417a03452f591bb779042b2b3ff16d2ac48a9a74d293bc7265980280801784f92cdd0ae0dbc21743433388149557da7642871c72f3bb4b3061cf7eeba
 DIST rust-1.70.0-aarch64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 435383da02632d404ce95ecfc0b0690f18447f22cd82e67cd08e6e8aab072539b33a49c2712bdc35f34a811f8e66bda6bcf9505b41dcdaf4cc66e358df9d7f02 SHA512 634c35b52d85c524a954d0663b6f1507c5aec826768c1a51394bf72bae585afadd3d3af985a9d165a65d178e04813fd592a78d058ed1400bb0fc43b0a1614a27
 DIST rust-1.70.0-aarch64-unknown-linux-musl.tar.xz 195626092 BLAKE2B df5ca11b64513c86dbcab93bbc5eee37a1f2c6307ca479c07ef62d683ec1b1f56bd596284b11695d80c8483ba5ffaacb0bf060d7618f5e79f3957bfe8bae042b SHA512 5bcc47e2e791603b419c2d1f3503a60cc9a4a7351d3e8a61e6f3823c53195f58795cfcdc56c0c2011ae40a21ec7819d7dad32f5f9981f3d39e5f28ba85083d07
@@ -228,6 +230,8 @@ DIST rust-1.81.0-x86_64-unknown-linux-gnu.tar.xz 170439044 BLAKE2B 5377d8972a729
 DIST rust-1.81.0-x86_64-unknown-linux-gnu.tar.xz.asc 801 BLAKE2B 9f39dedf33efd6fe4d66e10e3cb064851b1637a50e97d3bc19c48bf989e1e94d694df493eb437d2c2e58989933dbb05a7d25c276b26331475f44ea2d9d52909c SHA512 37908051e511cf223e92379ecf577ee1644d6aa13583b622b78d445367ca9e8a4253d77a5237831eeef15607c71e99ae3ef42451803466fad303bb523e13475c
 DIST rust-1.81.0-x86_64-unknown-linux-musl.tar.xz 251142276 BLAKE2B da30177914f8574ff896b64a60279913d48330818c6e96e10d3180964ed542697f29c6ca7e7c81fb1b814e1d9ceb8bbf6e119596b59564a64a08e30ce72ce4b8 SHA512 3b772269362556bebbff72a13abf05f745fd88128367ab1e5879ed3c0f3f5a1f7370faec1b2bce521a38662d58d94a8e4eb6b085c8e0f166979af490492e17c8
 DIST rust-1.81.0-x86_64-unknown-linux-musl.tar.xz.asc 801 BLAKE2B e13afc29a5a06bd9453db22a6bc6894d8fb671ad9e3989852c9348ded5a22c908ec58ddc20b0f2d94e6bd291eb0e9fec09277f95ba9528bb7d333748ebb79959 SHA512 da0689376503be19af92d88e2731296c6a5286cec60d42dcebd4738b23e3e1a1bb303982e2a9e6bc14a8f7a8872321b9e9c25915cde43fa1772ddfdb149997c7
+DIST rustc-1.54.0-src.tar.xz 116286856 BLAKE2B 5ac47822646a0b6205f09282168b4d4ddcace9f6bc8f242c890327ca4074626f129514f8bcae5c5556015745f718990cce490658076f5cd3526623439540416b SHA512 5162f85b43ca2c5af93fdbfb2597d75df8a838f7fcc025a5298499ce1043db50f1ea2fbba753e47ce5daad3d80d4b612acf6527ef902c34117763e687fdbbcfa
+DIST rustc-1.54.0-src.tar.xz.asc 801 BLAKE2B 5ee9166eaa00e4ffec10fb82b18946d403bc2030c6e04de6449311cbccc2ef1b017044f451a1c19be3a0a9640c4a9a9e4bd22d28e2115509f333ae38eb25e9d4 SHA512 5ad91f43515de14114964db0348cd28c08adc6dc935f110bf339053414b8eab8a40f1074ceffa44ed2df61254f8368d867479400618c44efaa0333642ab49d07
 DIST rustc-1.71.1-src.tar.xz 151983068 BLAKE2B 3dfdbc246feb84a79ae94c2de978c5585ee06cf6b683d2245869b62e28f7c79f89cc589f5431537713bf088236a0b824acefc1b68e418e9eb72e1eea98054e3f SHA512 fd0e5a16bdbeb539184513583089e55f681cb772810df357b6b1464853f7022ac02edab3dd155b2262ed0047e2a25dea3808dd078dcdfce9d399384465009db4
 DIST rustc-1.71.1-src.tar.xz.asc 801 BLAKE2B a88c073a70552d73e2d7695eceabdaa478f34501b7271fabf7f4a09f3efa545181f34353e45776b05918e6aeba88adb02f9731454f7085a7abf1602fc6589983 SHA512 9dd0406cf22f1daa7fcfd015fc1c6f8d36586aa99bf14c1491ee464c1f892ab759feb83e8b55b64713170fb777fdbe038fb5fd01a59c911b6599223baaba0677
 DIST rustc-1.74.1-src.tar.xz 155968724 BLAKE2B e05f2379ac94b286f85791a138e1928e5b5b5a7749f0981d82c40c2a12860f55bf96bb2f0e924e35a0f8b2447b13052d38adea909aaa3199105787bb5a4861b3 SHA512 14c7e7ed2f38ab60299d8c7d41d78f042b6b57ef822d577b5138e60bdde31cf141eccd4332a25bc5da3d58eb5313d63c1448b5dfe9e11b8055bb8ea133a9038d
diff --git a/dev-lang/rust/files/1.47.0-ignore-broken-and-non-applicable-tests.patch b/dev-lang/rust/files/1.47.0-ignore-broken-and-non-applicable-tests.patch
new file mode 100644
index 000000000000..ff1707f4b8a4
--- /dev/null
+++ b/dev-lang/rust/files/1.47.0-ignore-broken-and-non-applicable-tests.patch
@@ -0,0 +1,75 @@
+From 1879d1d1a284bf51c752e47db284ce22701ed5d0 Mon Sep 17 00:00:00 2001
+From: Samuel Holland <samuel@sholland.org>
+Date: Sun, 16 Sep 2018 16:38:48 +0000
+Subject: [PATCH 12/15] Ignore broken and non-applicable tests
+
+c-link-to-rust-va-list-fn: unstable feature, broken on aarch64, #56475
+env-funky-keys: can't handle LD_PRELOAD (e.g. sandbox)
+long-linker-command-lines: takes >10 minutes to run (but still passes)
+simd-intrinsic-generic-bitmask.rs: broken on BE, #59356
+sparc-struct-abi: no sparc target
+sysroot-crates-are-unstable: can't run rustc without RPATH
+---
+ src/test/codegen/sparc-struct-abi.rs                            | 1 +
+ src/test/run-make-fulldeps/c-link-to-rust-va-list-fn/Makefile   | 2 ++
+ src/test/run-make-fulldeps/long-linker-command-lines/Makefile   | 2 ++
+ src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile | 2 ++
+ src/test/ui/env-funky-keys.rs                                   | 1 +
+ 6 files changed, 10 insertions(+)
+
+diff --git a/src/test/codegen/sparc-struct-abi.rs b/src/test/codegen/sparc-struct-abi.rs
+index 78e5b14a212..6f93e93286b 100644
+--- a/src/test/codegen/sparc-struct-abi.rs
++++ b/src/test/codegen/sparc-struct-abi.rs
+@@ -4,6 +4,7 @@
+ 
+ // only-sparc64
+ // compile-flags: -O --target=sparc64-unknown-linux-gnu --crate-type=rlib
++// ignore-test
+ #![feature(no_core, lang_items)]
+ #![no_core]
+ 
+diff --git a/src/test/run-make-fulldeps/c-link-to-rust-va-list-fn/Makefile b/src/test/run-make-fulldeps/c-link-to-rust-va-list-fn/Makefile
+index f124ca2ab61..363b18f0985 100644
+--- a/src/test/run-make-fulldeps/c-link-to-rust-va-list-fn/Makefile
++++ b/src/test/run-make-fulldeps/c-link-to-rust-va-list-fn/Makefile
+@@ -1,3 +1,5 @@
++# ignore-aarch64
++
+ -include ../tools.mk
+ 
+ all:
+diff --git a/src/test/run-make-fulldeps/long-linker-command-lines/Makefile b/src/test/run-make-fulldeps/long-linker-command-lines/Makefile
+index 5876fbc94bc..5f167ece1a2 100644
+--- a/src/test/run-make-fulldeps/long-linker-command-lines/Makefile
++++ b/src/test/run-make-fulldeps/long-linker-command-lines/Makefile
+@@ -1,3 +1,5 @@
++# ignore-test
++
+ -include ../tools.mk
+ 
+ all:
+diff --git a/src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile b/src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile
+index 9e770706857..6d92ec5cec8 100644
+--- a/src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile
++++ b/src/test/run-make-fulldeps/sysroot-crates-are-unstable/Makefile
+@@ -1,1 +1,3 @@
++# ignore-test
++
+ all:
+         python2.7 test.py
+diff --git a/src/test/ui/env-funky-keys.rs b/src/test/ui/env-funky-keys.rs
+index c5c824ac58d..f3fe047a79c 100644
+--- a/src/test/ui/env-funky-keys.rs
++++ b/src/test/ui/env-funky-keys.rs
+@@ -1,6 +1,7 @@
+ // run-pass
+ // Ignore this test on Android, because it segfaults there.
+ 
++// ignore-test
+ // ignore-android
+ // ignore-windows
+ // ignore-cloudabi no execve
+-- 
+2.24.1
+
diff --git a/dev-lang/rust/files/1.49.0-gentoo-musl-target-specs.patch b/dev-lang/rust/files/1.49.0-gentoo-musl-target-specs.patch
new file mode 100644
index 000000000000..25f1f27fcce6
--- /dev/null
+++ b/dev-lang/rust/files/1.49.0-gentoo-musl-target-specs.patch
@@ -0,0 +1,164 @@
+From 671ef2d1c228aed031b4232b8bea96f17b825263 Mon Sep 17 00:00:00 2001
+From: Georgy Yakovlev <gyakovlev@gentoo.org>
+Date: Mon, 23 Nov 2020 14:52:04 -0800
+Subject: [PATCH] add gentoo musl target specs
+
+---
+ .../src/spec/aarch64_gentoo_linux_musl.rs             | 11 +++++++++++
+ .../src/spec/armv7_gentoo_linux_musleabihf.rs         | 11 +++++++++++
+ .../rustc_target/src/spec/i686_gentoo_linux_musl.rs   | 11 +++++++++++
+ compiler/rustc_target/src/spec/mod.rs                 |  8 ++++++++
+ .../src/spec/powerpc64_gentoo_linux_musl.rs           | 11 +++++++++++
+ .../src/spec/powerpc64le_gentoo_linux_musl.rs         | 11 +++++++++++
+ .../src/spec/powerpc_gentoo_linux_musl.rs             | 11 +++++++++++
+ .../rustc_target/src/spec/x86_64_gentoo_linux_musl.rs | 11 +++++++++++
+ 8 files changed, 85 insertions(+)
+ create mode 100644 compiler/rustc_target/src/spec/aarch64_gentoo_linux_musl.rs
+ create mode 100644 compiler/rustc_target/src/spec/armv7_gentoo_linux_musleabihf.rs
+ create mode 100644 compiler/rustc_target/src/spec/i686_gentoo_linux_musl.rs
+ create mode 100644 compiler/rustc_target/src/spec/powerpc64_gentoo_linux_musl.rs
+ create mode 100644 compiler/rustc_target/src/spec/powerpc64le_gentoo_linux_musl.rs
+ create mode 100644 compiler/rustc_target/src/spec/powerpc_gentoo_linux_musl.rs
+ create mode 100644 compiler/rustc_target/src/spec/x86_64_gentoo_linux_musl.rs
+
+diff --git a/compiler/rustc_target/src/spec/aarch64_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/aarch64_gentoo_linux_musl.rs
+new file mode 100644
+index 0000000..420fe7c
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/aarch64_gentoo_linux_musl.rs
+@@ -0,0 +1,11 @@
++use crate::spec::Target;
++
++pub fn target() -> Target {
++    let mut base = super::aarch64_unknown_linux_musl::target();
++
++    base.llvm_target = "aarch64-gentoo-linux-musl".to_string();
++    base.options.vendor = "gentoo".to_string();
++    base.options.crt_static_default = false;
++
++    base
++}
+diff --git a/compiler/rustc_target/src/spec/armv7_gentoo_linux_musleabihf.rs b/compiler/rustc_target/src/spec/armv7_gentoo_linux_musleabihf.rs
+new file mode 100644
+index 0000000..067e2d6
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/armv7_gentoo_linux_musleabihf.rs
+@@ -0,0 +1,11 @@
++use crate::spec::Target;
++
++pub fn target() -> Target {
++    let mut base = super::armv7_unknown_linux_musleabihf::target();
++
++    base.llvm_target = "armv7-gentoo-linux-musleabihf".to_string();
++    base.options.vendor = "gentoo".to_string();
++    base.options.crt_static_default = false;
++
++    base
++}
+diff --git a/compiler/rustc_target/src/spec/i686_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/i686_gentoo_linux_musl.rs
+new file mode 100644
+index 0000000..1cd39cd
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/i686_gentoo_linux_musl.rs
+@@ -0,0 +1,11 @@
++use crate::spec::Target;
++
++pub fn target() -> Target {
++    let mut base = super::i686_unknown_linux_musl::target();
++
++    base.llvm_target = "i686-gentoo-linux-musl".to_string();
++    base.options.vendor = "gentoo".to_string();
++    base.options.crt_static_default = false;
++
++    base
++}
+diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
+index f1e8330..d8c0ba0 100644
+--- a/compiler/rustc_target/src/spec/mod.rs
++++ b/compiler/rustc_target/src/spec/mod.rs
+@@ -490,6 +490,14 @@ macro_rules! supported_targets {
+ }
+ 
+ supported_targets! {
++    ("aarch64-gentoo-linux-musl", aarch64_gentoo_linux_musl),
++    ("armv7-gentoo-linux-musleabihf", armv7_gentoo_linux_musleabihf),
++    ("i686-gentoo-linux-musl", i686_gentoo_linux_musl),
++    ("powerpc-gentoo-linux-musl", powerpc_gentoo_linux_musl),
++    ("powerpc64-gentoo-linux-musl", powerpc64_gentoo_linux_musl),
++    ("powerpc64le-gentoo-linux-musl", powerpc64le_gentoo_linux_musl),
++    ("x86_64-gentoo-linux-musl", x86_64_gentoo_linux_musl),
++
+     ("x86_64-unknown-linux-gnu", x86_64_unknown_linux_gnu),
+     ("x86_64-unknown-linux-gnux32", x86_64_unknown_linux_gnux32),
+     ("i686-unknown-linux-gnu", i686_unknown_linux_gnu),
+diff --git a/compiler/rustc_target/src/spec/powerpc64_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc64_gentoo_linux_musl.rs
+new file mode 100644
+index 0000000..e840bb2
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/powerpc64_gentoo_linux_musl.rs
+@@ -0,0 +1,11 @@
++use crate::spec::Target;
++
++pub fn target() -> Target {
++    let mut base = super::powerpc64_unknown_linux_musl::target();
++
++    base.llvm_target = "powerpc64-gentoo-linux-musl".to_string();
++    base.options.vendor = "gentoo".to_string();
++    base.options.crt_static_default = false;
++
++    base
++}
+diff --git a/compiler/rustc_target/src/spec/powerpc64le_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc64le_gentoo_linux_musl.rs
+new file mode 100644
+index 0000000..1037d82
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/powerpc64le_gentoo_linux_musl.rs
+@@ -0,0 +1,11 @@
++use crate::spec::Target;
++
++pub fn target() -> Target {
++    let mut base = super::powerpc64le_unknown_linux_musl::target();
++
++    base.llvm_target = "powerpc64le-gentoo-linux-musl".to_string();
++    base.options.vendor = "gentoo".to_string();
++    base.options.crt_static_default = false;
++
++    base
++}
+diff --git a/compiler/rustc_target/src/spec/powerpc_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/powerpc_gentoo_linux_musl.rs
+new file mode 100644
+index 0000000..a623ffe
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/powerpc_gentoo_linux_musl.rs
+@@ -0,0 +1,11 @@
++use crate::spec::Target;
++
++pub fn target() -> Target {
++    let mut base = super::powerpc_unknown_linux_musl::target();
++
++    base.llvm_target = "powerpc-gentoo-linux-musl".to_string();
++    base.options.vendor = "gentoo".to_string();
++    base.options.crt_static_default = false;
++
++    base
++}
+diff --git a/compiler/rustc_target/src/spec/x86_64_gentoo_linux_musl.rs b/compiler/rustc_target/src/spec/x86_64_gentoo_linux_musl.rs
+new file mode 100644
+index 0000000..f330473
+--- /dev/null
++++ b/compiler/rustc_target/src/spec/x86_64_gentoo_linux_musl.rs
+@@ -0,0 +1,11 @@
++use crate::spec::Target;
++
++pub fn target() -> Target {
++    let mut base = super::x86_64_unknown_linux_musl::target();
++
++    base.llvm_target = "x86_64-gentoo-linux-musl".to_string();
++    base.options.vendor = "gentoo".to_string();
++    base.options.crt_static_default = false;
++
++    base
++}
+-- 
+2.29.2
+
diff --git a/dev-lang/rust/files/1.53.0-rustversion-1.0.5.patch b/dev-lang/rust/files/1.53.0-rustversion-1.0.5.patch
new file mode 100644
index 000000000000..bc6ae8be00b7
--- /dev/null
+++ b/dev-lang/rust/files/1.53.0-rustversion-1.0.5.patch
@@ -0,0 +1,234 @@
+From 12efa21eb88cb43d3b927952da0c5635373ac92b Mon Sep 17 00:00:00 2001
+From: David Tolnay <dtolnay@gmail.com>
+Date: Thu, 17 Jun 2021 22:34:55 -0700
+Subject: [PATCH] Update rustversion to 1.0.5
+
+---
+ Cargo.lock                                   |  4 +--
+ vendor/rustversion/.cargo-checksum.json      |  2 +-
+ vendor/rustversion/Cargo.toml                |  2 +-
+ vendor/rustversion/build/build.rs            |  6 ++++
+ vendor/rustversion/build/rustc.rs            | 30 +++++++++-----------
+ vendor/rustversion/src/lib.rs                | 15 ++++++++++
+ vendor/rustversion/src/time.rs               | 13 +++++++--
+ vendor/rustversion/tests/test_parse.rs       | 10 +++++++
+ vendor/rustversion/tests/ui/bad-bound.stderr |  4 +--
+ vendor/rustversion/tests/ui/bad-date.stderr  |  4 +--
+ 10 files changed, 63 insertions(+), 27 deletions(-)
+
+diff --git a/Cargo.lock b/Cargo.lock
+index 0939f19cdfe..26a89caf050 100644
+--- a/Cargo.lock
++++ b/Cargo.lock
+@@ -4582,9 +4582,9 @@ dependencies = [
+ 
+ [[package]]
+ name = "rustversion"
+-version = "1.0.4"
++version = "1.0.5"
+ source = "registry+https://github.com/rust-lang/crates.io-index"
+-checksum = "cb5d2a036dc6d2d8fd16fde3498b04306e29bd193bf306a57427019b823d5acd"
++checksum = "61b3909d758bb75c79f23d4736fac9433868679d3ad2ea7a61e3c25cfda9a088"
+ 
+ [[package]]
+ name = "ryu"
+diff --git a/vendor/rustversion/.cargo-checksum.json b/vendor/rustversion/.cargo-checksum.json
+index e1277df7b59..0a134695aaf 100644
+--- a/vendor/rustversion/.cargo-checksum.json
++++ b/vendor/rustversion/.cargo-checksum.json
+@@ -1 +1 @@
+-{"files":{"Cargo.toml":"1a91782510461d54726e816ae776042b95c79c9949d49c11b8782caefc22ead2","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"23f18e03dc49df91622fe2a76176497404e46ced8a715d9d2b67a7446571cca3","README.md":"01dc6a1bf499a12bd0bfbbfe4db2ca8460b2c151235bcf2aad2356de4c2ec50a","build/build.rs":"481daf363b7004c90ffc3e012863a4102e9f26b9aaa2a4a295c2dd78f690be28","build/rustc.rs":"4dc8f1764672137bd15758cc19242740b0d6ab99e4a69171ad0999f9112a15a6","src/attr.rs":"9301cd4aff5a9648c057d5d8de9eb66921f0c3a715c51ada4459576bd49c8b19","src/bound.rs":"44bda74d3aacfeeeac9dae2f7eef3acc844d4c3c7eaa9d3e6288e5aeff269dff","src/constfn.rs":"613b8f53b21cc06b4f619fce9000993d3e7873b650701ca01cef1e53bed5b40a","src/date.rs":"454c749a60db8144a706a813e06fe3ae39c981920ba9832ef82f3f9debe1f052","src/error.rs":"cb37102f03ebbaca313d80f9714fe08dfef92fe956789ee87d93eb6121705f4f","src/expr.rs":"8e8ca76f4f5838436d9d7273f499c698bb41f6c15bc07d32ec5c1cb8bd3dd731","src/iter.rs":"8d4b817b9abc4e817105b673e15f29ef9bb8284a010ce01ac2d83387fe136947","src/lib.rs":"f8347832d8072058dbb4af6b8d67a834a02fe9c5460bbaa26defec4b66317f1b","src/release.rs":"abb8ddd877c39a023bf5e7bd67063d6e4144e79758a8bafa338167f9d15b89f1","src/time.rs":"45fb48ff0a0046a5a1b108b9ce53b14885637ad868ede1d66970379c2b7f16ef","src/token.rs":"824ce765f692db73afa02d3ebb0281c750748035efc98fa547be29d3072665ce","src/version.rs":"afdb048bba95bbb885945eba5527b6bf0eca0105642bfc304c2f82a8b7d556df","tests/compiletest.rs":"0a52a44786aea1c299c695bf948b2ed2081e4cc344e5c2cadceab4eb03d0010d","tests/test_const.rs":"a8297ca6559f895a3b2664964a42b6f82bbbc3c8faa9556a513006e6e1827995","tests/test_eval.rs":"6f0ee3f49c9a0d0c374a4d0e9a9dce753cd9fc2ca7725e000a435dbd5f4a9ce3","tests/test_parse.rs":"fbf9695f4208263743715e6c8b6294dfffee21462a65dfeb9339a70c0e18dbc6","tests/ui/bad-bound.rs":"25bde278fcaabf62868417148a5e5f2006bf589d7ebd7bf6004fb8d78e47594f","tests/ui/bad-bound.stderr":"bc9297f758c2541fb0a8b48d5785f4bbcd0d2a07d876ba0baf2fc9de9275e7e6","tests/ui/bad-date.rs":"6e23714dae8b6346fefe50dacd4abba3265248bbadfdd60c739138aa8a0037ba","tests/ui/bad-date.stderr":"1ac3cab13ee900fc8344e8fab21ff4d9cad476aca44925a4c1b2293a6b59b742","tests/ui/bad-not.rs":"f003df8bd245e9dd8edc3a6d94078ee5162fac7a98db881271f0f5b6db98d45d","tests/ui/bad-not.stderr":"d4ef78fae4a82419e737757158796cb103a5920df498956eaf57ed201797b463","tests/ui/bad-version.rs":"f4ea2cd038e6c63deb9c2e3ceffce93dbf179d9ce18c16d88f3b6cd7138a8c8e","tests/ui/bad-version.stderr":"60ed51c62f4c2fb6ff95cff7523cfca379ed434f319da9d82704318588792338","tests/ui/const-not-fn.rs":"10bbe38f0d89391fff0698756e4cfd4e72a41090360393a0c951b67df14d1c35","tests/ui/const-not-fn.stderr":"9551f7f222445b31d7af2415d467301c332d55bb3d5a143846484f2f00047a01"},"package":"cb5d2a036dc6d2d8fd16fde3498b04306e29bd193bf306a57427019b823d5acd"}
+\ No newline at end of file
++{"files":{"Cargo.toml":"a09ee758f816eddff8a8c7fb5be54dd95e74caad18a207251faedd251ecfaf1c","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"23f18e03dc49df91622fe2a76176497404e46ced8a715d9d2b67a7446571cca3","README.md":"01dc6a1bf499a12bd0bfbbfe4db2ca8460b2c151235bcf2aad2356de4c2ec50a","build/build.rs":"bae427f344972e6e0e348ec48dce0947274b3ec6cac0938497a8d3da5c9834e5","build/rustc.rs":"3e4acf7ea679f9331dd4e8dbe42a08a312f58379ea1eee5898793a9848d06d8c","src/attr.rs":"9301cd4aff5a9648c057d5d8de9eb66921f0c3a715c51ada4459576bd49c8b19","src/bound.rs":"44bda74d3aacfeeeac9dae2f7eef3acc844d4c3c7eaa9d3e6288e5aeff269dff","src/constfn.rs":"613b8f53b21cc06b4f619fce9000993d3e7873b650701ca01cef1e53bed5b40a","src/date.rs":"454c749a60db8144a706a813e06fe3ae39c981920ba9832ef82f3f9debe1f052","src/error.rs":"cb37102f03ebbaca313d80f9714fe08dfef92fe956789ee87d93eb6121705f4f","src/expr.rs":"8e8ca76f4f5838436d9d7273f499c698bb41f6c15bc07d32ec5c1cb8bd3dd731","src/iter.rs":"8d4b817b9abc4e817105b673e15f29ef9bb8284a010ce01ac2d83387fe136947","src/lib.rs":"5652f6f84fc80136bd29b2125f7676e80e0df7d40aac274b0658c99cecbd871d","src/release.rs":"abb8ddd877c39a023bf5e7bd67063d6e4144e79758a8bafa338167f9d15b89f1","src/time.rs":"bdd05a743b07a6bbfa0dbc9d4e415e051aba4a51a430c3be1e23447eae298c8b","src/token.rs":"824ce765f692db73afa02d3ebb0281c750748035efc98fa547be29d3072665ce","src/version.rs":"afdb048bba95bbb885945eba5527b6bf0eca0105642bfc304c2f82a8b7d556df","tests/compiletest.rs":"0a52a44786aea1c299c695bf948b2ed2081e4cc344e5c2cadceab4eb03d0010d","tests/test_const.rs":"a8297ca6559f895a3b2664964a42b6f82bbbc3c8faa9556a513006e6e1827995","tests/test_eval.rs":"6f0ee3f49c9a0d0c374a4d0e9a9dce753cd9fc2ca7725e000a435dbd5f4a9ce3","tests/test_parse.rs":"cdfe376020b9391330292968046117b0935c828d73385e8faeb2e333ec897088","tests/ui/bad-bound.rs":"25bde278fcaabf62868417148a5e5f2006bf589d7ebd7bf6004fb8d78e47594f","tests/ui/bad-bound.stderr":"a03dc78b380191c10d3b3406b1fd3208bb2609d4c26b9c33ccd335721e3cd072","tests/ui/bad-date.rs":"6e23714dae8b6346fefe50dacd4abba3265248bbadfdd60c739138aa8a0037ba","tests/ui/bad-date.stderr":"3a607fb950a69f7dc1b503295bce53541f9dee9f4674edc5d13ee3a69ff0e8cd","tests/ui/bad-not.rs":"f003df8bd245e9dd8edc3a6d94078ee5162fac7a98db881271f0f5b6db98d45d","tests/ui/bad-not.stderr":"d4ef78fae4a82419e737757158796cb103a5920df498956eaf57ed201797b463","tests/ui/bad-version.rs":"f4ea2cd038e6c63deb9c2e3ceffce93dbf179d9ce18c16d88f3b6cd7138a8c8e","tests/ui/bad-version.stderr":"60ed51c62f4c2fb6ff95cff7523cfca379ed434f319da9d82704318588792338","tests/ui/const-not-fn.rs":"10bbe38f0d89391fff0698756e4cfd4e72a41090360393a0c951b67df14d1c35","tests/ui/const-not-fn.stderr":"9551f7f222445b31d7af2415d467301c332d55bb3d5a143846484f2f00047a01"},"package":"61b3909d758bb75c79f23d4736fac9433868679d3ad2ea7a61e3c25cfda9a088"}
+\ No newline at end of file
+diff --git a/vendor/rustversion/Cargo.toml b/vendor/rustversion/Cargo.toml
+index 56995ff0792..c72b1b2b343 100644
+--- a/vendor/rustversion/Cargo.toml
++++ b/vendor/rustversion/Cargo.toml
+@@ -13,7 +13,7 @@
+ [package]
+ edition = "2018"
+ name = "rustversion"
+-version = "1.0.4"
++version = "1.0.5"
+ authors = ["David Tolnay <dtolnay@gmail.com>"]
+ build = "build/build.rs"
+ description = "Conditional compilation according to rustc compiler version"
+diff --git a/vendor/rustversion/build/build.rs b/vendor/rustversion/build/build.rs
+index 2a8bc4af39f..15312510d68 100644
+--- a/vendor/rustversion/build/build.rs
++++ b/vendor/rustversion/build/build.rs
+@@ -1,3 +1,9 @@
++#![allow(
++    clippy::enum_glob_use,
++    clippy::must_use_candidate,
++    clippy::single_match_else
++)]
++
+ mod rustc;
+ 
+ use std::env;
+diff --git a/vendor/rustversion/build/rustc.rs b/vendor/rustversion/build/rustc.rs
+index 723e6bdd0e2..dfc6a05166f 100644
+--- a/vendor/rustversion/build/rustc.rs
++++ b/vendor/rustversion/build/rustc.rs
+@@ -48,23 +48,21 @@ pub fn parse(string: &str) -> Option<Version> {
+         Some(channel) if channel == "dev" => Dev,
+         Some(channel) if channel.starts_with("beta") => Beta,
+         Some(channel) if channel == "nightly" => match words.next() {
+-            Some(hash) => {
+-                if !hash.starts_with('(') {
+-                    return None;
++            Some(hash) if hash.starts_with('(') => match words.next() {
++                None if hash.ends_with(')') => Dev,
++                Some(date) if date.ends_with(')') => {
++                    let mut date = date[..date.len() - 1].split('-');
++                    let year = date.next()?.parse().ok()?;
++                    let month = date.next()?.parse().ok()?;
++                    let day = date.next()?.parse().ok()?;
++                    match date.next() {
++                        None => Nightly(Date { year, month, day }),
++                        Some(_) => return None,
++                    }
+                 }
+-                let date = words.next()?;
+-                if !date.ends_with(')') {
+-                    return None;
+-                }
+-                let mut date = date[..date.len() - 1].split('-');
+-                let year = date.next()?.parse().ok()?;
+-                let month = date.next()?.parse().ok()?;
+-                let day = date.next()?.parse().ok()?;
+-                match date.next() {
+-                    None => Nightly(Date { year, month, day }),
+-                    Some(_) => return None,
+-                }
+-            }
++                None | Some(_) => return None,
++            },
++            Some(_) => return None,
+             None => Dev,
+         },
+         Some(_) => return None,
+diff --git a/vendor/rustversion/src/lib.rs b/vendor/rustversion/src/lib.rs
+index 2614105dd1a..172eb89382f 100644
+--- a/vendor/rustversion/src/lib.rs
++++ b/vendor/rustversion/src/lib.rs
+@@ -145,6 +145,21 @@
+ //!
+ //! <br>
+ 
++#![allow(
++    clippy::cast_lossless,
++    clippy::cast_possible_truncation,
++    clippy::doc_markdown,
++    clippy::enum_glob_use,
++    clippy::from_iter_instead_of_collect,
++    clippy::module_name_repetitions,
++    clippy::must_use_candidate,
++    clippy::needless_doctest_main,
++    clippy::needless_pass_by_value,
++    clippy::redundant_else,
++    clippy::toplevel_ref_arg,
++    clippy::unreadable_literal
++)]
++
+ extern crate proc_macro;
+ 
+ mod attr;
+diff --git a/vendor/rustversion/src/time.rs b/vendor/rustversion/src/time.rs
+index 1e6dd9066b4..3c21463dd80 100644
+--- a/vendor/rustversion/src/time.rs
++++ b/vendor/rustversion/src/time.rs
+@@ -1,4 +1,5 @@
+ use crate::date::Date;
++use std::env;
+ use std::time::{SystemTime, UNIX_EPOCH};
+ 
+ // Timestamp of 2016-03-01 00:00:00 in UTC.
+@@ -13,14 +14,20 @@
+ 
+ pub fn today() -> Date {
+     let default = Date {
+-        year: 2019,
+-        month: 1,
+-        day: 1,
++        year: 2020,
++        month: 2,
++        day: 25,
+     };
+     try_today().unwrap_or(default)
+ }
+ 
+ fn try_today() -> Option<Date> {
++    if let Some(pkg_name) = env::var_os("CARGO_PKG_NAME") {
++        if pkg_name.to_str() == Some("rustversion-tests") {
++            return None; // Stable date for ui testing.
++        }
++    }
++
+     let now = SystemTime::now();
+     let since_epoch = now.duration_since(UNIX_EPOCH).ok()?;
+     let secs = since_epoch.as_secs();
+diff --git a/vendor/rustversion/tests/test_parse.rs b/vendor/rustversion/tests/test_parse.rs
+index 843bd73d3e5..cb39b3179f5 100644
+--- a/vendor/rustversion/tests/test_parse.rs
++++ b/vendor/rustversion/tests/test_parse.rs
+@@ -1,3 +1,5 @@
++#![allow(clippy::enum_glob_use, clippy::must_use_candidate)]
++
+ include!("../build/rustc.rs");
+ 
+ #[test]
+@@ -76,6 +78,14 @@ fn test_parse() {
+                 }),
+             },
+         ),
++        (
++            "rustc 1.52.1-nightly (gentoo)",
++            Version {
++                minor: 52,
++                patch: 1,
++                channel: Dev,
++            },
++        ),
+     ];
+ 
+     for (string, expected) in cases {
+diff --git a/vendor/rustversion/tests/ui/bad-bound.stderr b/vendor/rustversion/tests/ui/bad-bound.stderr
+index f8c498c8577..2c56acbdb33 100644
+--- a/vendor/rustversion/tests/ui/bad-bound.stderr
++++ b/vendor/rustversion/tests/ui/bad-bound.stderr
+@@ -1,10 +1,10 @@
+-error: expected rustc release number like 1.31, or nightly date like 2020-10-26
++error: expected rustc release number like 1.31, or nightly date like 2020-02-25
+  --> $DIR/bad-bound.rs:1:22
+   |
+ 1 | #[rustversion::since(stable)]
+   |                      ^^^^^^
+ 
+-error: expected rustc release number like 1.31, or nightly date like 2020-10-26
++error: expected rustc release number like 1.31, or nightly date like 2020-02-25
+  --> $DIR/bad-bound.rs:4:26
+   |
+ 4 | #[rustversion::any(since(stable))]
+diff --git a/vendor/rustversion/tests/ui/bad-date.stderr b/vendor/rustversion/tests/ui/bad-date.stderr
+index 734d7889075..c523ccc02bf 100644
+--- a/vendor/rustversion/tests/ui/bad-date.stderr
++++ b/vendor/rustversion/tests/ui/bad-date.stderr
+@@ -1,10 +1,10 @@
+-error: expected nightly date, like 2020-10-26
++error: expected nightly date, like 2020-02-25
+  --> $DIR/bad-date.rs:1:24
+   |
+ 1 | #[rustversion::nightly(stable)]
+   |                        ^^^^^^
+ 
+-error: expected nightly date, like 2020-10-26
++error: expected nightly date, like 2020-02-25
+  --> $DIR/bad-date.rs:4:28
+   |
+ 4 | #[rustversion::any(nightly(stable))]
+-- 
+2.32.0
+
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 000000000000..68239d98d374
--- /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/files/llvm/12/cstdint-signals-h.patch b/dev-lang/rust/files/llvm/12/cstdint-signals-h.patch
new file mode 100644
index 000000000000..1945372c4d0d
--- /dev/null
+++ b/dev-lang/rust/files/llvm/12/cstdint-signals-h.patch
@@ -0,0 +1,24 @@
+https://gitweb.gentoo.org/fork/llvm-project.git/commit/llvm/include/llvm/Support/Signals.h?h=gentoo-15.0.7-r7&id=ff1681ddb303223973653f7f5f3f3435b48a1983
+From: Sergei Trofimovich <slyich@gmail.com>
+Date: Mon, 23 May 2022 08:03:23 +0100
+Subject: [Support] Add missing <cstdint> header to Signals.h
+
+Without the change llvm build fails on this week's gcc-13 snapshot as:
+
+    [  0%] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Signals.cpp.o
+    In file included from llvm/lib/Support/Signals.cpp:14:
+    llvm/include/llvm/Support/Signals.h:119:8: error: variable or field 'CleanupOnSignal' declared void
+      119 |   void CleanupOnSignal(uintptr_t Context);
+          |        ^~~~~~~~~~~~~~~
+--- a/src/llvm-project/llvm/include/llvm/Support/Signals.h
++++ b/src/llvm-project/llvm/include/llvm/Support/Signals.h
+@@ -14,6 +14,7 @@
+ #ifndef LLVM_SUPPORT_SIGNALS_H
+ #define LLVM_SUPPORT_SIGNALS_H
+ 
++#include <cstdint>
+ #include <string>
+ 
+ namespace llvm {
+-- 
+cgit v1.2.3-65-gdbad
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 000000000000..b471cc036ce5
--- /dev/null
+++ b/dev-lang/rust/rust-1.54.0.ebuild
@@ -0,0 +1,559 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+
+CARGO_BOOTSTRAP="yes"
+RUST_MAX_VER=${PV}
+RUST_MIN_VER="$(ver_cut 1).$(($(ver_cut 2) - 1)).0"
+
+# Requried to build against openssl-3.*
+CRATE_PATHS_OVERRIDE="
+	openssl@0.10.35
+	openssl-sys@0.9.65
+"
+
+inherit cargo check-reqs estack flag-o-matic multiprocessing \
+	multilib multilib-build python-any-r1 rust-toolchain toolchain-funcs verify-sig
+
+DESCRIPTION="Systems programming language from Mozilla"
+HOMEPAGE="https://www.rust-lang.org/"
+
+SRC_URI="
+	https://static.rust-lang.org/dist/rustc-${PV}-src.tar.xz
+	${CARGO_CRATE_URIS}
+	verify-sig? (
+		https://static.rust-lang.org/dist/rustc-${PV}-src.tar.xz.asc
+	)
+"
+
+S="${WORKDIR}/rustc-${PV}-src"
+
+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"
+SLOT="${PV}"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86"
+
+IUSE="clippy cpu_flags_x86_sse2 debug doc miri nightly parallel-compiler rustfmt test wasm ${ALL_LLVM_TARGETS[*]}"
+
+BDEPEND="${PYTHON_DEPS}
+	app-eselect/eselect-rust
+	|| (
+		>=sys-devel/gcc-4.7
+		>=sys-devel/clang-3.5
+	)
+	>=dev-build/cmake-3.13.4
+	dev-build/ninja
+	test? ( dev-debug/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=
+	elibc_musl? ( sys-libs/libunwind:= )
+"
+
+RDEPEND="${DEPEND}
+	app-eselect/eselect-rust
+	!dev-lang/rust:stable
+	!dev-lang/rust-bin:stable
+"
+
+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}/${PV}/lib/rustlib/.*/lib/lib.*.so
+"
+
+# An rmeta file is custom binary format that contains the metadata for the crate.
+# rmeta files do not support linking, since they do not contain compiled object files.
+# so we can safely silence the warning for this QA check.
+QA_EXECSTACK="usr/lib/${PN}/${PV}/lib/rustlib/*/lib*.rlib:lib.rmeta"
+
+# causes double bootstrap
+RESTRICT="test"
+
+VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/rust.asc
+
+PATCHES=(
+	"${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}/llvm/12/cstdint-signals-h.patch"
+)
+
+toml_usex() {
+	usex "${1}" true false
+}
+
+pre_build_checks() {
+	local M=7680
+	# multiply requirements by 1.5 if we are doing x86-multilib
+	if use amd64; then
+		M=$(( $(usex abi_x86_32 15 10) * ${M} / 10 ))
+	fi
+	M=$(( $(usex clippy 128 0) + ${M} ))
+	M=$(( $(usex miri 128 0) + ${M} ))
+	M=$(( $(usex rustfmt 256 0) + ${M} ))
+	local ltarget
+	for ltarget in ${ALL_LLVM_TARGETS[@]}; do
+		M=$(( $(usex ${ltarget} 256 0) + ${M} ))
+	done
+	M=$(( $(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 doc 256 0) + ${M} ))
+	CHECKREQS_DISK_BUILD=${M}M check-reqs_pkg_${EBUILD_PHASE}
+}
+
+pkg_pretend() {
+	pre_build_checks
+}
+
+pkg_setup() {
+	pre_build_checks
+	python-any-r1_pkg_setup
+
+	export LIBGIT2_NO_PKG_CONFIG=1 #749381
+	rust_pkg_setup
+}
+
+src_unpack() {
+	verify-sig_src_unpack
+	cargo_src_unpack
+	# Vendored sources here override crates-io sources (repo) from cargo eclass.
+	sed -i '/\[source.crates-io\]/,+2d' "${ECARGO_HOME}"/config.toml
+}
+
+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="${rust_targets#,}"
+
+	local tools="\"cargo\",\"rls\",\"analysis\",\"src\","
+	if use clippy; then
+		tools="\"clippy\",$tools"
+	fi
+	if use miri; then
+		tools="\"miri\",$tools"
+	fi
+	if use rustfmt; then
+		tools="\"rustfmt\",$tools"
+	fi
+
+	local rust_stage0_root
+	rust_stage0_root="$(rustc --print sysroot || die "Can't determine rust's sysroot")"
+
+	# 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 = false
+		[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 = $(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_ >> "${S}"/config.toml
+				crt-static = false
+			_EOF_
+		fi
+	done
+	if use wasm; then
+		cat <<- _EOF_ >> "${S}"/config.toml
+			[target.wasm32-unknown-unknown]
+			linker = "rust-lld"
+		_EOF_
+	fi
+
+	if [[ -n ${I_KNOW_WHAT_I_AM_DOING_CROSS} ]]; then # whitespace intentionally shifted below
+	# experimental cross support
+	# discussion: https://bugs.gentoo.org/679878
+	# TODO: c*flags, clang, cargo.eclass target support
+	# it would be much better if we could split out stdlib
+	# complilation to separate ebuild and abuse CATEGORY to
+	# just install to /usr/lib/rustlib/<target>
+
+	# extra targets defined as a bash array
+	# spec format:  <LLVM target>:<rust-target>:<CTARGET>
+	# best place would be /etc/portage/env/dev-lang/rust
+	# Example:
+	# RUST_CROSS_TARGETS=(
+	#	"AArch64:aarch64-unknown-linux-gnu:aarch64-unknown-linux-gnu"
+	# )
+	# no extra hand holding is done, no target transformations, all
+	# values are passed as-is with just basic checks, so it's up to user to supply correct values
+	# valid rust targets can be obtained with
+	# 	rustc --print target-list
+	# matching cross toolchain has to be installed
+	# matching LLVM_TARGET has to be enabled for both rust and llvm (if using system one)
+	# only gcc toolchains installed with crossdev are checked for now.
+
+	# BUG: we can't pass host flags to cross compiler, so just filter for now
+	# BUG: this should be more fine-grained.
+	filter-flags '-mcpu=*' '-march=*' '-mtune=*'
+
+	local cross_target_spec
+	for cross_target_spec in "${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 = "${cross_toolchain}-ar"
+		_EOF_
+		if [[ "${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=(
+		assembly
+		codegen
+		codegen-units
+		compile-fail
+		incremental
+		mir-opt
+		pretty
+		run-make
+	)
+
+	# 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
+
+	local symlinks=(
+		cargo
+		rls
+		rust-gdb
+		rust-gdbgui
+		rust-lldb
+		rustc
+		rustdoc
+	)
+
+	use clippy && symlinks+=( clippy-driver cargo-clippy )
+	use miri && symlinks+=( miri cargo-miri )
+	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-${PV}"
+		MANPATH="${EPREFIX}/usr/lib/rust/man-${PV}"
+		$(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-${P}"
+		/usr/bin/cargo
+		/usr/bin/rls
+		/usr/bin/rust-gdb
+		/usr/bin/rust-gdbgui
+		/usr/bin/rust-lldb
+		/usr/bin/rustdoc
+		/usr/lib/rust/lib
+		/usr/lib/rust/libexec
+		/usr/lib/rust/man
+		/usr/lib/rustlib
+		/usr/share/doc/rust
+	_EOF_
+
+	if use clippy; then
+		echo /usr/bin/clippy-driver >> "${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-${P}"
+	fi
+	if use rustfmt; then
+		echo /usr/bin/rustfmt >> "${T}/provider-${P}"
+		echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
+	fi
+
+	insinto /etc/env.d/rust
+	doins "${T}/provider-${P}"
+}
+
+pkg_postinst() {
+	eselect rust update
+
+	if has_version dev-debug/gdb || has_version dev-util/lldb; then
+		elog "Rust installs a helper script for calling GDB and LLDB,"
+		elog "for your convenience it is installed under /usr/bin/rust-{gdb,lldb}-${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
+}