anchor.diff:      owner = "hughsie";
       repo = "libxmlb";
       rev = version;
  -    sha256 = "sha256-ZzA1YJYxTR91X79NU9dWd11Ze+PX2wuZeumuEuNdC48=";
  +    sha256 = "vT/NGFDzP0ut+TKD8pYVQrjTkepzKEJUo3uKF4MX334=";
     };
   
     patches = [
       ./installed-tests-path.patch
  -    # Fix darwin build, can be removed on next release
  -    # `--version-script` isn't supported by the macOS linker
  -    # https://github.com/hughsie/libxmlb/pull/119
  -    (fetchpatch {
  -      url = "https://github.com/hughsie/libxmlb/commit/d83aac5bd78cfbbfa2ecd428ff54b811071dfe4d.patch";
  -      sha256 = "sha256-UNRMbyNzdxfTZ8xV6J8a622hPnr3mowooP1q8Dg19yw=";
  -    })
     ];
   
     nativeBuildInputs = [
       docbook_xml_dtd_43
  -    docbook_xsl
  +    docbook-xsl-nons
       gobject-introspection
       gtk-doc
       meson
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "libxmlb";
    version = "0.3.7";
  
    outputs = [ "out" "lib" "dev" "devdoc" "installedTests" ];
  
  
negative.code: { stdenv
  , lib
  , fetchFromGitHub
  , docbook_xml_dtd_43
  , docbook-xsl-nons
  , glib
  , gobject-introspection
  , gtk-doc
  