NUM morphotactics in testvoc lite don't compile

[jonorthwash]

hfst-fst2strings -c 1 .deps/NUM.hfst | gzip -c > NUM.txt.gz
Killed
make: *** No rule to make target 'NUM-ROMAN.txt.gz', needed by 'all'.  Stop.
rm .deps/NUM.hfst .deps/NUM.prefix.bin .deps/NUM.prefix.upper .deps/NUM.prefix.att .deps/NUM.prefix.hfst .deps/NUM.prefixes

Took about an hour and used up all 64GB of RAM on my lab machine plus the additional 64GB of swap before dying.

I'm wondering if it might be cyclical?