Fix build in OS X 10.9
Fix build in OS X 10.9

dexX7/mastercore,mastercoin-MSC/mastercore,mastercoin-MSC/mastercore,dexX7/mastercore,dexX7/mastercore,mastercoin-MSC/mastercore,mastercoin-MSC/mastercore,mastercoin-MSC/mastercore,dexX7/mastercore