anchor.diff:  , wayland-protocols
   , xineramaSupport ? stdenv.isLinux
   , cupsSupport ? stdenv.isLinux
  +, withGtkDoc ? stdenv.isLinux
   , cups ? null
   , AppKit
   , Cocoa
  
positive.code:   '';
  
    nativeBuildInputs = [
      docbook_xml_dtd_43
      docbook_xsl
      gettext
      gtk-doc
      gobject-introspection
      makeWrapper
      meson
  
negative.code:   separateDebugInfo = stdenv.isLinux;
  
    mesonFlags = [
      "-Dgtk_doc=${boolToString withGtkDoc}"
      "-Dtests=false"
    ];
  
  