https://github.com/rosscomputerguy/nixpkgs-llvm-ws

Flake workspace / repo to stage and track Nixpkgs/NixOS's ability to be compiled completely with LLVM
https://github.com/rosscomputerguy/nixpkgs-llvm-ws

llvm nixpkgs testing

Last synced: 29 days ago
JSON representation

Flake workspace / repo to stage and track Nixpkgs/NixOS's ability to be compiled completely with LLVM

• Host: GitHub
• URL: https://github.com/rosscomputerguy/nixpkgs-llvm-ws
• Owner: RossComputerGuy
• License: mit
• Created: 2024-06-16T02:24:45.000Z (5 months ago)
• Default Branch: master
• Last Pushed: 2024-08-15T05:56:01.000Z (3 months ago)
• Last Synced: 2024-10-11T00:04:14.839Z (29 days ago)
• Topics: llvm, nixpkgs, testing
• Language: Nix
• Homepage:
• Size: 4.3 MB
• Stars: 15
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# nixpkgs-llvm-ws

Flake workspace / repo to stage and track Nixpkgs/NixOS's ability to be compiled completely with LLVM.

Goal is to ensure the majority of Nixpkgs works under `pkgsLLVM` or with LLVM.

## Roadmap

Current roadmap as of 2024-07-27:

- [x] Working minimal NixOS config

- [ ] Enable Hydra testing

- [ ] Automated build failure reports

- [ ] Working graphical NixOS config

## Contributing

As Nixpkgs is a large repo, there are many packages. To not burden the load on just me (@RossComputerGuy)

or other contributors and maintainers, additional help is appreciated.

### 1. Finding build failures

The best way to find build failures is to use `nix build github:NixOS/nixpkgs#pkgsLLVM.*pkgname*` and

report a build failure to [Nixpkgs](https://github.com/NixOS/nixpkgs). Create an issue in this repository

with a link to the Nixpkgs issue and work will be done to reproduce and fix here and then upstreaming it.

### 2. Fixing build failures

The best way to fix is to create a PR to this repository for me (@RossComputerGuy) and other people to

look into and fix. Either one of the people involved with this project can upstream it or you can upstream it

yourself.

## Common Build Failures

### Version script causing `error: version script assignment of 'xxx' to symbol 'xx' failed: symbol not defined`

This usually happens when a library is linked with a version script, the usual solution is to implement something

like this:

```nix

# Fix undefined reference errors with version script under LLVM.

NIX_LDFLAGS = lib.optionalString (stdenv.cc.bintools.isLLVM && lib.versionAtLeast stdenv.cc.bintools.version "17") "--undefined-version";

```