anchor.diff:  }:
   
   let
  -  inherit (stdenv.lib)
  -    enFlag;
  +  inherit (lib)
  +    boolEn;
  +
  +  versionMajor = "3.12";
  +  versionMinor = "0";
  +  version = "${versionMajor}.${versionMinor}";
   in
   
   stdenv.mkDerivation rec {
     name = "libgnome-keyring-${version}";
  -  versionMajor = "3.12";
  -  versionMinor = "0";
  -  version = "${versionMajor}.${versionMinor}";
   
     src = fetchurl {
       url = "mirror://gnome/sources/libgnome-keyring/${versionMajor}/"
  
positive.code: , fetchurl
  , gettext
  , intltool
  
  , dbus
  , glib
  
negative.code:     "--disable-gtk-doc"
      "--disable-gtk-doc-html"
      "--disable-gtk-doc-pdf"
      "--enable-introspection"
      "--${boolEn (vala != null)}-vala"
      "--disable-debug"
      "--disable-coverage"
    ];
  
    meta = with lib; {
      description = "Compatibility library for accessing secrets";
      homepage = https://wiki.gnome.org/Projects/GnomeKeyring;
      license = with licenses; [
  