Has anybody else hit a failing dav1d build when building a python package?

❯ nix-build -A dav1d
error:
       … while calling the 'abort' builtin
         at /Users/seclark/development/nixpkgs/lib/customisation.nix:339:7:
          338|     else
          339|       abort "lib.customisation.callPackageWith: ${error}";
             |       ^
          340|

       error: evaluation aborted with the following error message: 'lib.customisation.callPackageWith: Function called without required argument "xxHash" at /Users/seclark/development/nixpkgs/pkgs/by-name/da/dav1d/package.nix:9'

here's my attempt at iOS Cross Compilation: https://github.com/NixOS/nixpkgs/pull/512100

would love feedback on if i'm going in the right direction. haven't started on any "prebuilt" stuff, but with that stack i'm able to cross-compile all libxmtp ios libraries for x86_64-darwin,aarch64-darwin, and iphone64 + iphone64-simulator targets using xcode 26.3. I wasn't able to get all of propagate-inputs.nix working for the cross compile but that's what i'm currently working through to see if it results in less churn upstream of the package changes. so far getting that working looks like it may require some small hacky-ish patches to libresolv and copyfile packages.

I'm lucky to have two M1 Macbook Pros to use as remote builders to churn through these builds, but they still take 2-8 hours depending on how deep in the stack the change is so wanted to come for some early feedback if possible. overall some of the changes to compiler-rt/gnugrep feel hacky but not sure of an alternate path

here's my attempt at iOS Cross Compilation: https://github.com/NixOS/nixpkgs/pull/512100

would love feedback on if i'm going in the right direction. haven't started on any "prebuilt" stuff, but with that stack i'm able to cross-compile all libxmtp ios libraries for x86_64-darwin,aarch64-darwin, and iphone64 + iphone64-simulator targets using xcode 26.3. I wasn't able to get all of propagate-inputs.nix working for the cross compile but that's what i'm currently working through to see if it results in less churn upstream of the package changes. so far getting that working looks like it may require some small hacky-ish patches to libresolv and copyfile packages.

I'm lucky to have two M1 Macbook Pros to use as remote builders to churn through these builds, but they still take 2-8 hours depending on how deep in the stack the change is so wanted to come for some early feedback if possible. overall some of the changes to compiler-rt/gnugrep feel hacky but not sure of an alternate path. seems nix eval doesn't like the hardcoded path to xcode so something i gotta redo

here's my attempt at iOS Cross Compilation: https://github.com/NixOS/nixpkgs/pull/512100

would love feedback on if i'm going in the right direction. haven't started on any "prebuilt" stuff, but with that stack i'm able to cross-compile all libxmtp ios libraries for x86_64-darwin,aarch64-darwin, and iphone64 + iphone64-simulator targets using xcode 26.3. I wasn't able to get all of propagate-inputs.nix working for the cross compile but that's what i'm currently working through to see if it results in less churn upstream of the package changes. so far getting that working looks like it may require some small hacky-ish patches to libresolv and copyfile packages.

I'm lucky to have two M1 Macbook Pros to use as remote builders to churn through these builds, but they still take 2-8 hours depending on how deep in the stack the change is so wanted to come for some early feedback if possible. overall some of the changes to compiler-rt/gnugrep feel hacky but not sure of an alternate path. seems nix eval doesn't like the hardcoded path to xcode so something i gotta fix