anchor.diff:  
   let
   
  -  version = "2.2.1287";
  +  version = "2.2.1373";
   
     rpath = stdenv.lib.makeSearchPath "lib" [
       stdenv.glibc
  
positive.code:     if stdenv.system == "x86_64-linux" then
        fetchurl {
          url = "http://downloads.hipchat.com/linux/arch/x86_64/hipchat-${version}-x86_64.pkg.tar.xz";
          sha256 = "170izy3v18rgriz84h4gyf9354jvjrsbkgg53czq9l0scyz8x55b";
        }
      else if stdenv.system == "i686-linux" then
        fetchurl {
          url = "http://downloads.hipchat.com/linux/arch/i686/hipchat-${version}-i686.pkg.tar.xz";
          sha256 = "150q7pxg5vs14is5qf36yfsf7r70g49q9xr1d1rknmc5m4qa5rc5";
        }
      else
        throw "HipChat is not supported on ${stdenv.system}";
  
negative.code:     mv opt/HipChat/bin/linuxbrowserlaunch $out/libexec/hipchat/bin/
    '';
  
    meta = with stdenv.lib; {
      description = "Desktop client for HipChat services";
      homepage = http://www.hipchat.com;
      license = licenses.unfree;
      platforms = [ "i686-linux" "x86_64-linux" ];
      maintainers = with maintainers; [ jgeerds ];
    };
  }
  