anchor.diff:      libxml2
     ];
   
  -  configureFlags = [
  -    "--disable-maintainer-mode"
  -    "--disable-fatal-warnings"
  -    "--disable-extra-checks"
  -    "--disable-debug"
  -    "--disable-profiling"
  -    "--disable-valgrind"
  -    "--disable-gcov"
  -    "--disable-examples"
  -    "--${boolEn (gobject-introspection != null)}-introspection"
  -    "--disable-docbook"
  -    "--disable-gtk-doc"
  -    "--disable-gtk-doc-html"
  -    "--disable-gtk-doc-pdf"
  -    "--enable-gobject-cast-checks"
  -    "--disable-glib-asserts"
  -    "--enable-plugins"
  -    "--enable-Bsymbolic"
  -    "--disable-benchmarks"
  -    "--disable-static-plugins"
  -    #"--with-bash-completion-dir"
  -    "--without-gtk"
  +  mesonFlags = [
  +    "-Ddisable_introspection=false"
  +    "-Ddisable_gtkdoc=true"
     ];
   
     passthru = {
  
positive.code: 
    nativeBuildInputs = [
      flex
      perl
      python3
    ];
  
    buildInputs = [
  
negative.code: , fetchurl
  , flex
  , lib
  , meson
  , ninja
  
  , glib
  , gnonlin
  