SCons: Add patch for aarch64-darwin

[hummeltech]

SCons fails on Darwin (aarch64 specifically) in a sandboxed environment.

SCons/scons@2d5e3a4

On Darwin, Nix may invoke SCons in a sandbox which lacks access to
/etc/paths.d. Handle PermissionError while iterating through
/etc/paths.d to support sandboxed environments such as Nix.

E.g. while building mapnik (more details here):

Things done

Added upstream patch to fix SCons failures on aarch64-darwin

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[superherointj]

This likely needs to target staging.

[fabianhjr]

Hi @hummeltech, thanks for contributing.

Due to the number of rebuilds this needs to target the staging branch. There seems to be a merge conflict after changing the base.

Reference: https://github.com/NixOS/nixpkgs/blob/nixos-24.05/CONTRIBUTING.md#staging

[hummeltech]

Good idea, this already appears to have been addressed in staging, thanks for the help!