nixpkgs/pkgs/development/libraries/protobuf/3.12.nix

{ callPackage, ... }:

callPackage ./generic-v3.nix {
  version = "3.12.3";
  sha256 = "0q4sn9d6x8w0zgzydfx9f7b2zdk0kiplk8h9jxyxhw6m9qn276ax";
}