qt6.qtwebengine: mark as broken on darwin

[wegank]

Description of changes

Things done

• 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/)
• 24.05 Release Notes (or backporting 23.05 and 23.11 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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[Strum355]

Not compatible with macOS 11

stdenv.hostPlatform.darwinMinVersion returns 11 on (I believe) pretty much all current darwin versions, even on my existing 14.4 macbook, resulting in this package not building on any mac that Im aware of. Is this intentional? Doesnt seem to match what the comment states about it being specific to macOS 11

cc @reckenrode on how these variables are defined/what they mean

[K900]

Yes, that is intentional. We currently only have 10.x and 11.0 SDKs. @reckenrode is working on updating us to newer versions, which should unblock Qt again.

[reckenrode]

Not compatible with macOS 11

stdenv.hostPlatform.darwinMinVersion returns 11 on (I believe) pretty much all current darwin versions, even on my existing 14.4 macbook, resulting in this package not building on any mac that Im aware of. Is this intentional? Doesnt seem to match what the comment states about it being specific to macOS 11

cc @reckenrode on how these variables are defined/what they mean

hostPlatform.darwinMinVersion set the deployment target.

Did upstream drop support for macOS 11, or do they simply require a newer SDK (that is not yet available in nixpkgs)? It is possible to use or require a newer SDK and support older OS deployment using availability checks and other techniques.

The currently available SDKs in nixpkgs are 10.12 and 11.0. After the ld64 and Darwin cross stuff lands, I will be working on an SDK refactor that will make changing the SDK more robust and adding new ones easier. There is no ETA on that except for by 24.11.

[Strum355]

Im presuming the qtwebengine doc may be out of date then, it still states SDK 11 for 6.7.x 🤔 https://github.com/qt/qtwebengine/blob/v6.7.1/src/core/doc/src/qtwebengine-platform-notes.qdoc#L90
and the website version of it https://doc.qt.io/qt-6/qtwebengine-platform-notes.html#macos