From: Matt Jolly <kan...@gentoo.org>

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
Signed-off-by: Matt Jolly <kan...@gentoo.org>
---
 dev-lang/rust-bin/Manifest                    |  34 ++
 dev-lang/rust-bin/rust-bin-1.54.0.ebuild      | 188 ++++++
 dev-lang/rust/Manifest                        |   4 +
 ...nore-broken-and-non-applicable-tests.patch |  75 +++
 .../1.49.0-gentoo-musl-target-specs.patch     | 164 +++++
 .../rust/files/1.53.0-rustversion-1.0.5.patch | 234 ++++++++
 .../rust/files/1.54.0-parallel-miri.patch     |  43 ++
 .../files/llvm/12/cstdint-signals-h.patch     |  24 +
 dev-lang/rust/rust-1.54.0.ebuild              | 560 ++++++++++++++++++
 eclass/cargo.eclass                           |   2 +-
 eclass/rust.eclass                            |   2 +
 11 files changed, 1329 insertions(+), 1 deletion(-)
 create mode 100644 dev-lang/rust-bin/rust-bin-1.54.0.ebuild
 create mode 100644 
dev-lang/rust/files/1.47.0-ignore-broken-and-non-applicable-tests.patch
 create mode 100644 dev-lang/rust/files/1.49.0-gentoo-musl-target-specs.patch
 create mode 100644 dev-lang/rust/files/1.53.0-rustversion-1.0.5.patch
 create mode 100644 dev-lang/rust/files/1.54.0-parallel-miri.patch
 create mode 100644 dev-lang/rust/files/llvm/12/cstdint-signals-h.patch
 create mode 100644 dev-lang/rust/rust-1.54.0.ebuild

diff --git a/dev-lang/rust-bin/Manifest b/dev-lang/rust-bin/Manifest
index 57f186586c3e..53a84956b5e7 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..73f75f9310fb
--- /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-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=${BROOT}/usr/share/openpgp-keys/rust.asc
+
+pkg_pretend() {
+       if [[ "$(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 e15098bf9635..743831d1df3f 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 <sam...@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 <gyakov...@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 <dtol...@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 <dtol...@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-hu...@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 <sly...@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..fee7f52f689c
--- /dev/null
+++ b/dev-lang/rust/rust-1.54.0.ebuild
@@ -0,0 +1,560 @@
+# 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="$(ver_cut 1).$(($(ver_cut 2) - 1)).0"
+
+# Requried to build against openssl-3.*
+CRATE_PATHS_OVERRIDE="
+       openssl@0.10.35
+       openssl-sys@0.9.65
+"
+
+inherit autotools cargo check-reqs estack flag-o-matic multiprocessing \
+       multilib multilib-build python-any-r1 rust-toolchain toolchain-funcs 
verify-sig
+
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86"
+
+S="${WORKDIR}/rustc-${PV}-src"
+
+DESCRIPTION="Systems programming language from Mozilla"
+HOMEPAGE="https://www.rust-lang.org/";
+
+SRC_URI="
+       https://static.rust-lang.org/dist/rustc-${PV}-src.tar.xz
+       ${CARGO_CRATE_URIS}
+       verify-sig? (
+               https://static.rust-lang.org/dist/rustc-${PV}-src.tar.xz.asc
+       )
+"
+
+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}"
+
+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}/${PV}/lib/rustlib/*/lib*.rlib:lib.rmeta"
+
+# causes double bootstrap
+RESTRICT="test"
+
+VERIFY_SIG_OPENPGP_KEY_PATH=${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
+       "${FILESDIR}/llvm/12/cstdint-signals-h.patch"
+)
+
+toml_usex() {
+       usex "${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
+}
diff --git a/eclass/cargo.eclass b/eclass/cargo.eclass
index a49ef818a351..2677031246f6 100644
--- a/eclass/cargo.eclass
+++ b/eclass/cargo.eclass
@@ -315,7 +315,7 @@ cargo_crate_uris() {
 # @FUNCTION: _cargo_gen_override_paths_config
 # @INTERNAL
 # @DESCRIPTION:
-# Generate the TOML content for overriding crates using the package manager.
+# Generate the TOML content for overriding crates globally using the package 
manager.
 # This is called from within cargo_gen_config to insert the appropriate snippet
 # into the generated config.toml. Does not support git crates.
 _cargo_gen_override_paths_config() {
diff --git a/eclass/rust.eclass b/eclass/rust.eclass
index 450911ba2ea0..e2d950833bc3 100644
--- a/eclass/rust.eclass
+++ b/eclass/rust.eclass
@@ -75,6 +75,7 @@ declare -A -g -r _RUST_LLVM_MAP=(
        ["1.75.0"]=17
        ["1.74.1"]=17
        ["1.71.1"]=16
+       ["1.54.0"]=12
 )
 
 # @ECLASS_VARIABLE: _RUST_SLOTS_ORDERED
@@ -92,6 +93,7 @@ declare -a -g -r _RUST_SLOTS_ORDERED=(
        "1.75.0"
        "1.74.1"
        "1.71.1"
+       "1.54.0"
 )
 
 # == control variables ==
-- 
2.47.0


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