# Output-validation workarounds for packages rebuilt with x86-64-v3.
_final: prev:
let
  removeSiblingOutputChecks =
    package:
    package.overrideAttrs (old: {
      # Nix 2.34 can validate a partial multi-output rebuild against only the
      # outputs still being realised. PostgreSQL's checks then reject valid
      # sibling names such as "out" and "lib". Keep the test suite and
      # disallowed-requisite checks; accept the loss of cross-output checks.
      outputChecks = builtins.mapAttrs (
        _output: checks: builtins.removeAttrs checks [ "disallowedReferences" ]
      ) (old.outputChecks or { });
    });

in
prev.lib.optionalAttrs ((prev.stdenv.hostPlatform.gcc.arch or null) == "x86-64-v3") {
  postgresql = removeSiblingOutputChecks prev.postgresql;
  postgresql_18 = removeSiblingOutputChecks prev.postgresql_18;
}