anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "wingpanel-indicator-bluetooth";
  -  version = "2.1.4";
  +  version = "2.1.5";
   
     src = fetchFromGitHub {
       owner = "elementary";
       repo = pname;
       rev = version;
  -    sha256 = "05v3qy4rxi4l3g1ql99vcjylb01hz3galh19c2jc3lqc1mf1z1j1";
  +    sha256 = "0ylbpai05b300h07b94xcmw9xi7qx13l1q38zlg2n95d3c5264dp";
     };
   
     passthru = {
  
positive.code:   };
  
    nativeBuildInputs = [
      libxml2
      meson
      ninja
  
negative.code: , ninja
  , vala
  , gtk3
  , glib
  , granite
  , libnotify
  , wingpanel
  