anchor.diff:  
     src = fetchurl {
       url = "mirror://gnome/sources/json-glib/${versionMajor}/${name}.tar.xz";
  -    hashOutput = false;
  -    sha256 = "f6a80f42e63a3267356f20408bf91a1696837aa66d864ac7de2564ecbd332a7c";
  +    sha256 = "fd55a9037d39e7a10f0db64309f5f0265fa32ec962bf85066087b83a2807f40a";
     };
   
     nativeBuildInputs = [
       gettext
  -    meson
  -    ninja
     ];
   
     buildInputs = [
  
positive.code:   inherit (lib)
      boolEn;
  
    versionMajor = "1.3";
    versionMinor = "2";
    version = "${versionMajor}.${versionMinor}";
  in
  stdenv.mkDerivation rec {
  
negative.code: , fetchurl
  , gettext
  , lib
  
  , glib
  , gobject-introspection
  