anchor.diff:      "-Dudev_rules_dir=${placeholder "out"}/lib/udev/rules.d"
       # Include virtual drivers for fprintd tests
       "-Ddrivers=all"
  +    "-Dudev_hwdb_dir=${placeholder "out"}/lib/udev/hwdb.d"
     ];
   
     doCheck = true;
  
positive.code:     pixman
      glib
      nss
    ];
  
    checkInputs = [
  
negative.code:     owner = "libfprint";
      repo = pname;
      rev = "v${version}";
      sha256 = "0dpwzmwl9jjpaz44znvy3v8s9sln0c71b756rs1knk0zx8sa1qbc";
    };
  
    nativeBuildInputs = [
  