anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "libfprint";
  -  version = "1.90.7";
  +  version = "1.92.1";
     outputs = [ "out" "devdoc" ];
   
     src = fetchFromGitLab {
  
positive.code:     owner = "libfprint";
      repo = pname;
      rev = "v${version}";
      sha256 = "sha256-g/yczzCZEzUKV2uFl1MAPL1H/R2QJSwxgppI2ftt9QI=";
    };
  
    nativeBuildInputs = [
  
negative.code:     pixman
      glib
      nss
      cairo
      libgudev
    ];
  
    checkInputs = [
  