anchor.diff:  , lib
   }:
   
  -args@{ name, bazelFlags ? [], bazelTarget, buildAttrs, fetchAttrs, ... }:
  +args@{ name, bazelFlags ? [], bazelBuildFlags ? [], bazelFetchFlags ? [], bazelTarget, buildAttrs, fetchAttrs, ... }:
   
   let
     fArgs = removeAttrs args [ "buildAttrs" "fetchAttrs" ];
  
positive.code:         fetch \
          --loading_phase_threads=1 \
          $bazelFlags \
          $bazelTarget
  
        runHook postBuild
  
negative.code:       "''${host_linkopts[@]}" \
        '' + ''
        $bazelFlags \
        $bazelBuildFlags \
        $bazelTarget
  
      runHook postBuild
  