Building for iOS

[johnhamelink]

Hi there,

I'm struggling to understand how to use this PR correctly: https://github.com/rustshop/flakebox/pull/146/files

But nix build .#aarch64-ios.dev.rust_spike doesn't resolve on a Darwin machine - unlike, say, nix build .#aarch64-android.dev.rust_spike.

However, if I add the following to my flake:

        devShells = flakeboxLib.mkShells {
          packages = with pkgs; [
            parallel # Needed for pre-commit git-hook

            (xcodeenv.composeXcodeWrapper {
              versions = [ "16.4" ];
              xcodeBaseDir = "/Applications/Xcode.app";
            })
          ];

          shellHook = ''
            # Unbind outdated Apple SDKs
            unset DEVELOPER_DIR
            unset SDKROOT
          '';
        };

Then I can run nix develop .#cross and then cargo build --release --target aarch64-apple-ios, and my library compiles.

Does anyone have any idea what I should be doing to get compilation working from nix build? Thanks

[dpc]

I never got iOS crosscompilation to work correctly. :/ . There has been some improvements over the years, but the toolchain shipped with NixOS seem to still lack ios support/module IIRC, and we're building in nix develop shell still.

[johnhamelink]

@dpc I see, that's unfortunate, but understandable! I guess for now I can run nix develop .#cross --command "cargo" build --release --target aarch64-apple-ios as a one-liner in place of the nix build command, which is good enough for my immediate needs. I'm new to both rust and to iOS dev, but as I continue working on this library I'll keep my eyes peeled for ways to contribute. Thanks!