anchor.diff:      libnotify
       librsvg
       libsecret
  +    libsoup
       libxml2
       nspr
       nss
  
positive.code: , procps
  , shared_mime_info
  , sqlite
  , webkitgtk
  }:
  
  stdenv.mkDerivation rec {
  
negative.code: , libnotify
  , librsvg
  , libsecret
  , libsoup
  , libxml2
  , nspr
  , nss
  