Description of changes

This solves a CMake dependency resolution issue. Arrows FindProtobufAlt module looks for Protobuf with an uppercase P, which is matched by another find module that is provided by CMake itself. When it gets to look for grpc that tries to resolve protobuf with a lowercase p, which is matched by the upstream provided protobuf-config.cmake. At this point conflicting target definitions are detected and the configuration process aborts.

The patch proposed here modifies the arrow module so that it will protobuf-config.cmake as well.

Targeting #248496.

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/)
• 23.11 Release Notes (or backporting 23.05 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.