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mistral-rs: fix build with LLVM 21

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Assisted-by: Codex (GPT-5)
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wrvsrx
2026-07-14 04:07:40 +08:00
parent e7a3ca8092
commit 292b81408e
1 changed files with 21 additions and 0 deletions
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21
pkgs/by-name/mi/mistral-rs/package.nix
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@@ -34,6 +34,7 @@
let
inherit (stdenv) hostPlatform;
rustc = rustPlatform.callPackage ({ rustc }: rustc) { };
accelIsValid = builtins.elem acceleration [
null
@@ -94,6 +95,26 @@ rustPlatform.buildRustPackage (finalAttrs: {
--replace-fail \
"lto = true" \
"lto = false"
''
# LLVM 21 cannot select the VPDPBUSD intrinsic because its argument types are incorrect.
# Fixed by https://github.com/rust-lang/llvm-project/commit/94e2c19f86a699d7a19ff0f4130b696699189c8d.
+ lib.optionalString (hostPlatform.isx86_64 && lib.versionOlder rustc.llvm.version "22") ''
substituteInPlace "$cargoDepsCopy/source-git-0/candle-core-0.11.0/src/quantized/mod.rs" \
--replace-fail \
'#[cfg(target_arch = "x86_64")]' \
'#[cfg(any())]' \
--replace-fail \
'#[cfg(not(any(target_arch = "aarch64", target_arch = "x86_64")))]' \
'#[cfg(not(target_arch = "aarch64"))]'
substituteInPlace "$cargoDepsCopy/source-git-0/candle-core-0.11.0/src/quantized/repack.rs" \
--replace-fail \
'#[cfg(target_arch = "x86_64")]' \
'#[cfg(any())]' \
--replace-fail \
'#[cfg(not(any(target_arch = "aarch64", target_arch = "x86_64")))]' \
'#[cfg(not(target_arch = "aarch64"))]'
''
# Prevent build scripts from attempting to clone cutlass (which would fail in the sandbox anyway).
# Instead, we provide cutlass in buildInputs.