anchor.diff:  
     buildInputs = [
       glib
  -    glib_networking
  +    glib-networking
       gobject-introspection
       libxml2
       sqlite
  +    vala
     ];
   
     postPatch = ''
  
positive.code: 
    # glib_networking is a runtime dependency, not a compile-time dependency
    configureFlags = [
      "--enable-glibtest"
      "--disable-installed-tests"
      "--disable-always-build-tests"
  
negative.code: 
  stdenv.mkDerivation rec {
    name = "libsoup-${version}";
    versionMajor = "2.54";
    versionMinor = "0";
    version = "${versionMajor}.${versionMinor}";
  
    src = fetchurl {
      url = "mirror://gnome/sources/libsoup/${versionMajor}/${name}.tar.xz";
      sha256 = "fbf1038efb10d2ffbbb88bb46e7ce32b683fde8e566f36bcf26f7f69a550ec56";
    };
  
    nativeBuildInputs = [
  