anchor.diff:      gtkCleanImmodulesCache
     ];
   
  -  src = fetchzip {
  -    url = "https://gitlab.gnome.org/GNOME/gtk/-/archive/9d1d2f0a6643570274121fc1473e46a6edc2e32d/gtk-9d1d2f0a6643570274121fc1473e46a6edc2e32d.tar.gz";
  -    sha256 = "sha256-+K1Kp3Sklrj/Ly0pSktfQwfcrIKpbf05NQbMDhWJZNI=";
  +  src = fetchurl {
  +    url = "mirror://gnome/sources/gtk+/${lib.versions.majorMinor version}/gtk+-${version}.tar.xz";
  +    sha256 = "sha256-28afkN3IIbjRRB8AN03B2kMjour6kHjmHtvl7u+oUuw=";
     };
   
     patches = [
  
positive.code: { lib
  , stdenv
  , substituteAll
  , fetchzip
  , pkg-config
  , gettext
  , docbook-xsl-nons
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "gtk+3";
    version = "3.24.34";
  
    outputs = [ "out" "dev" ] ++ lib.optional withGtkDoc "devdoc";
    outputBin = "dev";
  