llvmPackages_latest: 13 -> 14

[primeos]

Description of changes

This is likely not ready yet (some LLVM 14 packages might still be marked as broken) but as a reminder/TODO (#165520). I haven't done any testing yet and don't really have time/motivation to push this forward. Does someone else have time and motivation for this? Feel free to replace my PR. Whoever tests this should definitely take the credit for that work!

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
• 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/)
• 22.05 Release Notes (or backporting 21.11 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
  • (Release notes changes) Ran nixos/doc/manual/md-to-db.sh to update generated release notes
• Fits CONTRIBUTING.md.

[primeos]

cc (FYI) @lovek323 @7c6f434c @dtzWill @sternenseemann @Ericson2314

[vcunat]

I don't know... perhaps packages that can't use llvmPackages_latest shouldn't be pinned to it anymore? I find it weird that _latest doesn't point to the latest llvm*.

[primeos]

It should be ready now, at least I've seen lots of fixes for LLVM 14 in the meantime, so I expect only very few breakages.
When excluding mesa, this might not trigger that many rebuilds so it might even be possible to use nixpkgs-review for testing this. However, I currently don't have a powerful enough builder anymore so I cannot verify it that way.
I'm not sure what's the best way to move this forward... :o

[Ericson2314]

I am fixing the remaining gnu install dirs. I am sorry I didn't do this long ago.

[Ericson2314]

Done in #176925

[Flakebi]

Ignoring mesa (by pinning it to llvmPackages_13), there is only a single regression: ccls
I think we can just pin that to llvmPackages_13? cc @Mic92 @tobim

Result of nixpkgs-review run on x86_64-linux 1

2 packages marked as broken and skipped:

• python310Packages.tiledb
• python39Packages.tiledb

1 package failed to build:

• ccls

18 packages built:

• bat-extras.prettybat
• clang-analyzer
• clang-tools
• cloudcompare
• cvise
• grass
• lldb
• lldb_13
• mold
• nominatim
• pdal
• pdal_2_3
• qgis
• qgis-ltr
• tiledb
• txr
• umr
• vscode-extensions.ms-vscode.cpptools

Mesa builds fine as well, I didn’t try using it.

[7c6f434c]

@ofborg build ccls

[7c6f434c]

@primeos if it ends up still failing, maybe indeed pin it?

[winterqt]

@Flakebi What did you do to get that small list of packages to build w/ nixpkgs-review? I can only get the ~1200 packages to start building on my system :/

[alyssais]

ccls seems to build fine with LLVM 14 now. Maybe because of #183987? So I think this is ready to go.

[Flakebi]

@Flakebi What did you do to get that small list of packages to build w/ nixpkgs-review? I can only get the ~1200 packages to start building on my system :/

I patched my nixpkgs so that mesa uses llvmPackages = llvmPackages_13 as a dependency instead of llvmPackages_latest in pkgs/top-level/all-packages.nix, then ran nixpkgs-review wip.