xorg.xorgserver: fix darwin build

[paparodeo]

this change can be backported to release-24.11

disable libunwind detection as the configure step will detect the libunwind pkg-config stub but then the code will uses the unimplemented function unw_strerror.

the pkg-config stub was added in ec40b04

https://hydra.nixos.org/build/278453569/nixlog/2/tail
fixes: #359772

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/)
• 25.05 Release Notes (or backporting 24.11 and 25.05 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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[RossComputerGuy]

This is more of libunwind from nongnu being the only libunwind implementation to have unw_strerror. We might see if LLVM could implement the method, it doesn't have any issues or PR's related to it. Might be worth seeing if they could implement it or accept a PR adding it.

[paparodeo]

This is more of libunwind from nongnu being the only libunwind implementation to have unw_strerror. We might see if LLVM could implement the method, it doesn't have any issues or PR's related to it. Might be worth seeing if they could implement it or accept a PR adding it.

it's easy enough to implement but it's out of scope for this PR

[RossComputerGuy]

Yeah, I was just adding some context since someone I know also ran into this problem.

[paparodeo]

and getting LLVM to add unw_strerror still will not fix darwin until darwin adds it to their libSystem since this isn't using the upstream llvm libunwind anyway. i did put together a change to that added unw_strerror to the darwin stub but decided against including it.

nonetheless -- none of this should be blocking on this PR.

[khaneliman]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 366504

---

x86_64-darwin

⏩ 16 packages marked as broken and skipped:

• perl538Packages.OpenGL
• perl538Packages.OpenGL.devdoc
• perl540Packages.OpenGL
• perl540Packages.OpenGL.devdoc
• xdummy
• xorg.xf86inputjoystick
• xorg.xf86inputmouse
• xorg.xf86inputvoid
• xorg.xf86videodummy
• xorg.xf86videoglide
• xorg.xf86videonewport
• xorg.xf86videosuncg6
• xorg.xf86videosunffb
• xorg.xf86videosunleo
• xorg.xf86videov4l
• xorg.xf86videowsfb

✅ 3 packages built:

• xorg.xinit
• xorg.xorgserver
• xquartz

---

aarch64-darwin

⏩ 16 packages marked as broken and skipped:

• perl538Packages.OpenGL
• perl538Packages.OpenGL.devdoc
• perl540Packages.OpenGL
• perl540Packages.OpenGL.devdoc
• xdummy
• xorg.xf86inputjoystick
• xorg.xf86inputmouse
• xorg.xf86inputvoid
• xorg.xf86videodummy
• xorg.xf86videoglide
• xorg.xf86videonewport
• xorg.xf86videosuncg6
• xorg.xf86videosunffb
• xorg.xf86videosunleo
• xorg.xf86videov4l
• xorg.xf86videowsfb

✅ 3 packages built:

• xorg.xinit
• xorg.xorgserver
• xquartz

[paparodeo]

thanks! this can get backported to release 24.11. I don't have permissions to add the tag myself.
https://hydra.nixos.org/build/279686005/nixlog/3/tail

[nixpkgs-ci]

Successfully created backport PR for release-24.11:

• [Backport release-24.11] xorg.xorgserver: fix darwin build #369158