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buildRustCrate: support cross compilation #99050

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merged 2 commits into from Sep 29, 2020
Merged

buildRustCrate: support cross compilation #99050

merged 2 commits into from Sep 29, 2020

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lopsided98
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Motivation for this change

Allows buildRustCrate to be used to cross-compile Rust crates. This PR implements the changes that are needed on the nixpkgs side, but neither crate2nix nor carnix (haven't tested, but a quick look at the code makes me think it doesn't) support cross-compilation. I have a WIP patch for crate2nix to fix this.

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.

cc @Ericson2314 @danieldk @kolloch @andir @symphorien

@lopsided98
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See nix-community/crate2nix#152 for my crate2nix patch.

@ofborg ofborg bot added the 6.topic: rust label Sep 29, 2020
@ofborg ofborg bot requested a review from adisbladis September 29, 2020 02:22
Ericson2314
Ericson2314 approved these changes Sep 29, 2020
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@Ericson2314 Ericson2314 left a comment

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Looks good! Don't think there is anything controversial here.

@Ericson2314 Ericson2314 merged commit cffc0ea into NixOS:master Sep 29, 2020
@Ericson2314
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Ping me in the create2nix patch too please!

@lopsided98 lopsided98 deleted the buildrustcrate-cross branch September 29, 2020 05:20
@lopsided98 lopsided98 mentioned this pull request Sep 29, 2020
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@Ericson2314 Ericson2314 Ericson2314 approved these changes

@andir andir Awaiting requested review from andir

@adisbladis adisbladis Awaiting requested review from adisbladis

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6.topic: rust 10.rebuild-darwin: 0 10.rebuild-linux: 1-10
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@lopsided98 @Ericson2314