| 27 Nov 2025 |
 Randy Eckenrode | We could possibly smuggle them in via the empty darwin.libSystem derivation. | 20:41:59 |
| 28 Nov 2025 |
| Randy Eckenrode | I’ve picked my Swift work back up. I’m trying to make the versioning of the LLVM fork more accurate to what Apple uses. The source is LLVM 19.1.5, but the version reported is 17.0.0. That’s probably going to make dealing with the overrides a lot of fun. | 16:27:47 |
| Randy Eckenrode | The new, scope-based LLVM is so much nicer to override. There’s still jank, but I don’t have to do anything to handle build vs. host vs. target packages.
(llvmPackages_19.override {
officialRelease = {
version = "19.1.5"; # From https://github.com/swiftlang/llvm-project/blob/swift-$swiftVersion-RELEASE/cmake/Modules/LLVMVersion.cmake
};
monorepoSrc = fetchFromGitHub {
owner = "swiftlang";
repo = "llvm-project";
tag = "swift-${lib.getVersion swift}-RELEASE";
hash = "sha256-DahdGT8VMBOXuwfhtXIJGFJmmhzzoQ6NdpU2CDs5B/s=";
};
otherSplices = generateSplicesForMkScope [
"swiftPackages"
"llvmPackages"
];
}).overrideScope
(
_: prev: {
version = "17.0.0"; # From https://github.com/swiftlang/swift/blob/swift-$swiftVersion-RELEASE/utils/build_swift/build_swift/defaults.py#L51
}
)
| 17:26:02 |
| Randy Eckenrode | * The new, scope-based LLVM is so much nicer to override. There’s still jank, but I don’t have to do anything to handle build vs. host vs. target packages.
let
swiftlangLlvmVersion = "17.0.0"; # From https://github.com/swiftlang/swift/blob/swift-$swiftVersion-RELEASE/utils/build_swift/build_swift/defaults.py#L51
llvmVersion = "19.1.5"; # From https://github.com/swiftlang/llvm-project/blob/swift-$swiftVersion-RELEASE/cmake/Modules/LLVMVersion.cmake
in
(llvmPackages_19.override {
officialRelease = { version = llvmVersion; };
monorepoSrc = fetchFromGitHub {
owner = "swiftlang";
repo = "llvm-project";
tag = "swift-${lib.getVersion swift}-RELEASE";
hash = "sha256-DahdGT8VMBOXuwfhtXIJGFJmmhzzoQ6NdpU2CDs5B/s=";
};
otherSplices = generateSplicesForMkScope [
"swiftPackages"
"llvmPackages"
];
}).overrideScope
(
_: prev: {
version = swiftlangLlvmVersion;
release_version = llvmVersion;
}
)
| 17:30:48 |
| Randy Eckenrode | The weird version overrides are because of the way LLVM captures the version. | 17:31:14 |
| Randy Eckenrode | I want the package version to match the one advertised by Swift. Ideally, I could it to build LLVM, but that would really break the patches. | 17:32:44 |
| Randy Eckenrode | * | 17:32:52 |
| Randy Eckenrode | * | 17:33:15 |
| Randy Eckenrode | (This means the Swift clang will print 19.1.5 for its version instead of 17.0.0.) | 17:34:26 |
 samasaur | exciting! | 20:44:08 |
| samasaur | do let me know if i can help at all | 20:44:12 |
 Sarah Clark | I have a weird build error that I'm trying to fix. python3Packages.torchtune crashes in importsCheckPhase when it imports python3Packages.sentencepiece on Darwin. I've confirmed that other python packages that depend on sentencepiece fail in the same way, but not if it's only used as a check dependency. The final weirdness: nix-build of sentencepiece picks up a prebuilt package, but calling it with --check shows a non-deterministic build. | 21:05:19 |
| Sarah Clark | Console.app is how I first depetermined its sentencepiece | 21:05:51 |
| Sarah Clark | * Console.app is how I first determined it's sentencepiece that's failing | 21:07:08 |
| Sarah Clark |
| 21:12:23 |
| Sarah Clark | * error: derivation 'rj3n6mm11f90ssv0az0aplkiy9b2s48l-python3.13-sentencepiece-0.2.1.drv' may not be deterministic: outputs differ
output '/nix/store/cpjk1gyzyz6j18jxfpsswdd0rggyzjah-python3.13-sentencepiece-0.2.1' differs | 21:12:29 |
| Sarah Clark | * error: derivation 'rj3n6mm11f90ssv0az0aplkiy9b2s48l-python3.13-sentencepiece-0.2.1.drv' may not be deterministic: outputs differ
output '/nix/store/cpjk1gyzyz6j18jxfpsswdd0rggyzjah-python3.13-sentencepiece-0.2.1' differs
| 21:24:35 |
| Randy Eckenrode | That’s expected on Darwin. | 21:48:53 |
| Sarah Clark | The non-deterministic build? | 22:03:27 |
| Sarah Clark | Or the sentencepiece crash? (In which case I would mark Darwin as a bad platform) | 22:03:52 |
| Randy Eckenrode | This. | 22:08:35 |
