compile with less enumeration levels on travis
compile with less enumeration levels on travis

fplll/fplll,cr-marcstevens/fplll,shi-bai/fplll,dstehle/fplll,blowfish880/fplll,cr-marcstevens/fplll,shi-bai/fplll,cr-marcstevens/fplll,shi-bai/fplll,fplll/fplll,dstehle/fplll,fplll/fplll,cr-marcstevens/fplll,blowfish880/fplll,fplll/fplll,fplll/fplll,blowfish880/fplll,dstehle/fplll,shi-bai/fplll