anchor.diff:      owner = "hughsie";
       repo = "libxmlb";
       rev = version;
  -    sha256 = "05snbv1dvqa96k7xlwi2sj161315kps3baansr9xdpwim5ckmwc6";
  +    sha256 = "1mb73pnfwqc4mm0lm16yfn0lj495h8hcciprb2v6wgy3ifnnjxib";
     };
   
     patches = [
  
positive.code: 
    meta = with stdenv.lib; {
      description = "A library to help create and query binary XML blobs";
      homepage = https://github.com/hughsie/libxmlb;
      license = licenses.lgpl21Plus;
      maintainers = with maintainers; [ jtojnar ];
      platforms = platforms.linux;
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "libxmlb";
    version = "0.1.15";
  
    outputs = [ "out" "lib" "dev" "devdoc" "installedTests" ];
  
  