The override was originally added in #442919 because monado depends on protobuf through two paths: - monado -> opencv4 -> protobuf - monado -> onnxruntime -> protobuf And since, *at that time*, onnxruntime has protobuf pinned to protobuf_21, we had to override opencv4 with protobuf_21 as well to avoid mixing two different versions of protobuf. Otherwise, mayhem occurs on initialization, manifesting as crashes or deadlocks. This does not seem to be known when #442919 was written. With #437307, onnxruntime is no longer pinned to protobuf_21, so the same mixing problem was introduced back into monado, just the other direction. Revert the override for opencv4 to fix it.
Nixpkgs is a collection of over 120,000 software packages that can be installed with the Nix package manager. It also implements NixOS, a purely-functional Linux distribution.
Manuals
- NixOS Manual - how to install, configure, and maintain a purely-functional Linux distribution
- Nixpkgs Manual - contributing to Nixpkgs and using programming-language-specific Nix expressions
- Nix Package Manager Manual - how to write Nix expressions (programs), and how to use Nix command line tools
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Nixpkgs and NixOS are built and tested by our continuous integration system, Hydra.
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Artifacts successfully built with Hydra are published to cache at https://cache.nixos.org/. When successful build and test criteria are met, the Nixpkgs expressions are distributed via Nix channels.
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