Add fallback code using poly_roots_uint64() on 32-bit machines again
Add fallback code using poly_roots_uint64() on 32-bit machines again

mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs,mancoast/cado-nfs