FIXED: another build error on Mac OS X
FIXED: another build error on Mac OS X

FairCoinTeam/fair-coin,FairCoinTeam/fair-coin,FairCoinTeam/fair-coin,coinkeeper/2015-06-22_19-01_faircoin,coinkeeper/2015-06-22_19-01_faircoin,coinkeeper/2015-06-22_19-01_faircoin,coinkeeper/2015-06-22_19-01_faircoin,coinkeeper/2015-06-22_19-01_faircoin,FairCoinTeam/fair-coin,FairCoinTeam/fair-coin