cairomm_1_16: fix darwin build

[stephank]

Motivation for this change

ZHF: #122042
cc @NixOS/nixos-release-managers

Hydra failure: https://hydra.nixos.org/build/142578519/nixlog/1

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.

[rmcgibbo]

Result of nixpkgs-review pr 123020 run on x86_64-darwin 1

3 packages failed to build:

• cairomm_1_16
• gtkmm4
• pangomm_2_48

end of the log: https://gist.github.com/rmcgibbo/5f534f91b91fab01abff03da7ee58dd4

[stephank]

Hmm, could this be related to the darwin sandbox? My local build was without sandboxing.

If so, is it crude if we just disable tests on darwin?

[veprbl]

Hmm, could this be related to the darwin sandbox? My local build was without sandboxing.

If so, is it crude if we just disable tests on darwin?

It looks like sandboxing related to me as well. There is no policy for this that I know of (but it would be nice if someone could file an issue to start the discussion). If it builds without sandbox, I would not disable tests and leave it with a broken sandboxed build for now.

[stephank]

Leaving stuff broken on Hydra feels a bit wrong, though. It inhibits efforts like ZHF.

[veprbl]

Leaving stuff broken on Hydra feels a bit wrong, though. It inhibits efforts like ZHF.

Hydra doesn't enable sandboxing. If you want to disable tests please leave a comment that this is a due to sandboxing, so that we can revisit this later.

[stephank]

Alright, I pushed a commit that disables tests on Darwin only, with a comment.

[veprbl]

Result of nixpkgs-review pr 123020 run on x86_64-darwin 1

1 package failed to build:

• gtkmm4

2 packages built:

• cairomm_1_16
• pangomm_2_48