GT configure notes

At times the languages take extremely long to be compiled, and this is one useful change that speeds it up (recommended by Jack Rueter 24.2.2016 for Skolt Saami):

./configure --with-hfst --enable-reversed-intersect

I'm thinking that useful configuration for us is something like one below, although I don't know if we need all of these, probably no:

./configure --enable-syntax --with-hfst --enable-twostep-intersect

With the --enable-reversed-intersect in case things are too slow. There were also options --enable-spellers --enable-dicts, but I test it now without those.