module Preload: sig .. end
Native implementation of gettext. Use the Native module, but use
informations provided to preload all textdomain translation. The preload
is made by trying to translate the string "", which is mandatory in MO file.
This is not the default behavior of gettext. Use this module if you know
that it is better to preload all string. Don't use this module if you think
you will only have a few strings to translate.