057dd0effe
This commit prepares libiconvReal to replace darwin.libiconv, allowing it to be used with binary derivations that patch out references to the system libiconv with one from nixpkgs. Apple’s libiconv is based on GNU libiconv 1.11 (the last version before it switched to LGPLv3+). Any newer releases by Apple appear to be build system tweaks. The core sources are barely updated. This means that Darwin users won’t get any fixes from upstream updates, and maintaining darwin.libiconv requires dealing with a separate and different build system (because Apple now builds it with Xcode). Fortunately, it is possible to build upstream libiconv in a way that is compatible with Apple’s distribution of it. There are two things that need to happen to produce an ABI-compatible build of libiconv: * Existing symbols need to be exported with the `iconv_` prefix instead of the `libiconv_` prefix. New symbols can have the `libiconv` prefix, and one symbol in Apple’s distribution does, but older ones must have the older prefix; and * Reexport `libcharset.dylib` from `libiconv.dylib`. This is explained by Apple as the result of a bug in their transition to an Xcode-based build system. Both these these are doable and have been done by this commit. I have tested it with building GHC, which downloads a binary distribution as part of its bootstrap and replaces references to the system libiconv with darwin.libiconv. Using this patch, libiconvReal is able to work without any changes to the GHC derivation. Note that this patch does not actually deprecate or remove darwin.libiconv yet. That will be done in a future patch after Darwin support is added for aliases and deprecating packages in the `darwin` attrset. |
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| CONTRIBUTING.md | ||
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| README.md | ||
Nixpkgs is a collection of over 80,000 software packages that can be installed with the Nix package manager. It also implements NixOS, a purely-functional Linux distribution.
Manuals
- NixOS Manual - how to install, configure, and maintain a purely-functional Linux distribution
- Nixpkgs Manual - contributing to Nixpkgs and using programming-language-specific Nix expressions
- Nix Package Manager Manual - how to write Nix expressions (programs), and how to use Nix command line tools
Community
- Discourse Forum
- Matrix Chat
- NixOS Weekly
- Community-maintained wiki
- Community-maintained list of ways to get in touch (Discord, Telegram, IRC, etc.)
Other Project Repositories
The sources of all official Nix-related projects are in the NixOS organization on GitHub. Here are some of the main ones:
- Nix - the purely functional package manager
- NixOps - the tool to remotely deploy NixOS machines
- nixos-hardware - NixOS profiles to optimize settings for different hardware
- Nix RFCs - the formal process for making substantial changes to the community
- NixOS homepage - the NixOS.org website
- hydra - our continuous integration system
- NixOS Artwork - NixOS artwork
Continuous Integration and Distribution
Nixpkgs and NixOS are built and tested by our continuous integration system, Hydra.
- Continuous package builds for unstable/master
- Continuous package builds for the NixOS 23.05 release
- Tests for unstable/master
- Tests for the NixOS 23.05 release
Artifacts successfully built with Hydra are published to cache at https://cache.nixos.org/. When successful build and test criteria are met, the Nixpkgs expressions are distributed via Nix channels.
Contributing
Nixpkgs is among the most active projects on GitHub. While thousands of open issues and pull requests might seem a lot at first, it helps consider it in the context of the scope of the project. Nixpkgs describes how to build tens of thousands of pieces of software and implements a Linux distribution. The GitHub Insights page gives a sense of the project activity.
Community contributions are always welcome through GitHub Issues and Pull Requests. When pull requests are made, our tooling automation bot, OfBorg will perform various checks to help ensure expression quality.
The Nixpkgs maintainers are people who have assigned themselves to maintain specific individual packages. We encourage people who care about a package to assign themselves as a maintainer. When a pull request is made against a package, OfBorg will notify the appropriate maintainer(s). The Nixpkgs committers are people who have been given permission to merge.
Most contributions are based on and merged into these branches:
masteris the main branch where all small contributions gostagingis branched from master, changes that have a big impact on Hydra builds go to this branchstaging-nextis branched from staging and only fixes to stabilize and security fixes with a big impact on Hydra builds should be contributed to this branch. This branch is merged into master when deemed of sufficiently high quality
For more information about contributing to the project, please visit the contributing page.
Donations
The infrastructure for NixOS and related projects is maintained by a nonprofit organization, the NixOS Foundation. To ensure the continuity and expansion of the NixOS infrastructure, we are looking for donations to our organization.
You can donate to the NixOS foundation through SEPA bank transfers or by using Open Collective:
License
Nixpkgs is licensed under the MIT License.
Note: MIT license does not apply to the packages built by Nixpkgs, merely to the files in this repository (the Nix expressions, build scripts, NixOS modules, etc.). It also might not apply to patches included in Nixpkgs, which may be derivative works of the packages to which they apply. The aforementioned artifacts are all covered by the licenses of the respective packages.