clang-uml: init at 0.5.1

[hatch01]

Description of changes

Add the package clang-uml

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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[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/prs-ready-for-review/1016/126

[RossComputerGuy]

Looks great aside from a few duped empty lines.

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/prs-ready-for-review/3032/3870

[hatch01]

@pogobanane is it ok for you that I use your work on clang-uml for nix packaging in this pr here (PR)
And should I use your wrapper, or is there a method to use the wrapper of clang directly in nixpkgs ?

[pogobanane]

@pogobanane is it ok for you that I use your work on clang-uml for nix packaging in this pr here (bkryza/clang-uml#273)
And should I use your wrapper, or is there a method to use the wrapper of clang directly in nixpkgs ?

We should merge this clang-uml: init first. Afterwards we can consider building a small, shared abstraction:

We already have that same wrapper here https://github.com/NixOS/nixpkgs/blob/0e2ddadf231ae164c333ac4d9e093c7ae21b970e/pkgs/development/tools/analysis/include-what-you-use/wrapper and here https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/tools/clang-tools/wrapper. However for clang-uml-wrapped, we run the binary in a different way, so we can't copy paste them. We could move the buildcpath() function and exports into a common file that is sourced by the app-respective wrappers. I'm not sure where to put such a lib-clang-wrapper.sh though. There is no precedent of putting it into nixpkgs/lib. We could perhaps integrate it into the llvmPackages, but i dont think that is worth the hassle.

[pogobanane]

Looks good. I tested a previous version of this patch with my own code.