anchor.diff: -{ stdenv, fetchurl, bootstrap-chicken ? null }:
  +{ stdenv, fetchurl, makeWrapper, bootstrap-chicken ? null }:
   
   let
     version = "4.9.0.1";
  
positive.code:     ./0001-Introduce-CHICKEN_REPOSITORY_EXTRA.patch
    ];
  
    buildInputs = lib.ifEnable (bootstrap-chicken != null) [
      bootstrap-chicken
    ];
  
    preBuild = lib.ifEnable (bootstrap-chicken != null) ''
      # Backup the build* files - those are generated from hostname,
  
negative.code:     make spotless $buildFlags
  
      mv build-backup/* .
    '';
  
    postInstall = ''
      for f in $out/bin/*
      do
        wrapProgram $f \
          --prefix PATH : ${stdenv.gcc}/bin
      done
    '';
  
    # TODO: Assert csi -R files -p '(pathname-file (repository-path))' == binaryVersion
  