anchor.diff:          else dontCheck super.fsnotify;
   
         mkDerivation = args: super.mkDerivation (args // {
  -        #enableLibraryProfiling = true;
  +        enableLibraryProfiling = enableProfiling;
         });
       };
     });
  
positive.code: , config ? {}
  , dconfig ? "testnet_staging_full"
  , gitrev ? "unknown"
  , pkgs ? (import (localLib.fetchNixPkgs) { inherit system config; }) }:
  
  with pkgs.lib;
  with pkgs.haskell.lib;
  
negative.code:         '';
          # waiting on load-command size fix in dyld
          doCheck = ! pkgs.stdenv.isDarwin;
          enableExecutableProfiling = enableProfiling;
          passthru = {
            inherit enableProfiling;
          };
        });
        cardano-sl-core = overrideCabal super.cardano-sl-core (drv: {
          configureFlags = [
  