anchor.diff:  , libgcrypt
   , gobject-introspection
   , vala
  -, gtk-doc
  +, gi-docgen
   , gnome
   , gjs
   , libintl
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "libsecret";
    version = "0.20.4";
  
    outputs = [ "out" "dev" "devdoc" ];
  
    src = fetchurl {
      url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
      sha256 = "0a4xnfmraxchd9cq5ai66j12jv2vrgjmaaxz25kl031jvda4qnij";
    };
  
    nativeBuildInputs = [
      pkg-config
      gettext
      libxslt
      docbook-xsl-nons
      docbook_xml_dtd_42
      libintl
      gobject-introspection
      vala
      gtk-doc
      glib
    ];
  
  
negative.code: , lib
  , fetchurl
  , glib
  , meson
  , ninja
  , pkg-config
  , gettext
  , libxslt
  