anchor.diff:      bison
       gtk-doc
       docbook-xsl-nons
  -    docbook_xml_dtd_43 # FIXME: remove in next release
       docbook_xml_dtd_45
       python3
       setupHook # move .gir files
  
positive.code: 
    src = fetchurl {
      url = "mirror://gnome/sources/${pname}/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
      sha256 = "19vz7vp10h0zj3f491yk72dp89bix6rgkzxg4qcm4d6151ksxgl0";
    };
  
    patches = [
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "gobject-introspection";
    version = "1.66.0";
  
    # outputs TODO: share/gobject-introspection-1.0/tests is needed during build
    # by pygobject3 (and maybe others), but it's only searched in $out
  