libtool13 dependencies

[Alhov Gennadiy]

Hello freebsd-ports,

  Following ports claims LIBTOOL_VERSION=13, but perfectly works with
  LIBTOOL_VERSION=15. Can someone probably fix them to depend on
  version 1.5?

  audio/libao
  audio/libid3tag
  audio/libmad

-- 
Best regards,
 Alhov                          mailto:senna at mail.fireshade.net