anchor.diff:      gobject-introspection
       gssdp
       libsoup
  -    libuuid
       libxml2
  +    util-linux_lib
       vala
     ];
   
  
positive.code: stdenv.mkDerivation rec {
    name = "gupnp-${version}";
    majorVersion = "0.20";
    version = "${majorVersion}.15";
  
    src = fetchurl {
      url = "mirror://gnome/sources/gupnp/${majorVersion}/${name}.tar.xz";
      sha256 = "1qlzaz61zv3sr6pmb87wjcvv6fhpwqn2z0vqrb6xz2jv1lnv8ih4";
    };
  
    buildInputs = [
  
negative.code: , gssdp
  , libsoup
  , libxml2
  , util-linux_lib
  , vala
  }:
  
  