anchor.diff:      meson
       ninja
       pkg-config
  +    gtk-doc
  +    docbook-xsl-nons
  +    docbook_xml_dtd_43
  +    docbook_xml_dtd_45
     ];
   
     buildInputs = [
  
positive.code:     "--datadir=${placeholder "dev"}/share"
      "-Ddoctool=disabled"
      "-Dcairo=disabled"
    ];
  
    doCheck = !stdenv.isAarch64;
  
negative.code: , bison
  , meson
  , ninja
  , gtk-doc
  , docbook-xsl-nons
  , docbook_xml_dtd_43
  , docbook_xml_dtd_45
  , pkg-config
  , libffi
  , python3
  