anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "wingpanel-indicator-datetime";
  -  version = "2.2.1";
  +  version = "2.2.2";
   
     src = fetchFromGitHub {
       owner = "elementary";
       repo = pname;
       rev = version;
  -    sha256 = "0y8lfrrkzcj8nw94jqawbxr4jz41ac0z539kkr3n3x0qmx72md2y";
  +    sha256 = "0a0pqrpmrdd5pch30lizr9righlc7165z7krmnaxrzd0fvfkbr2h";
     };
   
     passthru = {
  
positive.code: { stdenv
  , fetchFromGitHub
  , fetchpatch
  , pantheon
  , pkgconfig
  , meson
  
negative.code:     wingpanel
    ];
  
    postPatch = ''
      chmod +x meson/post_install.py
      patchShebangs meson/post_install.py
  