anchor.diff:      "--disable-gtk-doc-pdf"
       "--${boolEn (gcr != null)}-gcr"
       "--enable-nls"
  +    "--${boolEn (polkit != null)}-admin"
       "--${boolEn (libsoup != null)}-http"
       "--${boolEn (avahi != null)}-avahi"
       "--${boolEn (systemd_lib != null)}-udev"
  
positive.code:     glib
      #gnome-online-accounts
      gtk
      libgdata
      libarchive
      libbluray
      libcdio
      #libgdata
      libgudev
      libgcrypt
      libgnome-keyring
      libgphoto2
      libmtp
  
negative.code:     libsoup
      libxml2
      openssh
      polkit
      samba_client
      systemd_lib
      udisks
  