Use g++-4.3 on OS X, if available
Use g++-4.3 on OS X, if available

duncanmortimer/ledger,ledger/ledger,duncanmortimer/ledger,paulbdavis/ledger,paulbdavis/ledger,ledger/ledger,jwakely/ledger,afh/ledger,paulbdavis/ledger,duncanmortimer/ledger,duncanmortimer/ledger,jwakely/ledger,afh/ledger,duncanmortimer/ledger,ledger/ledger,jwakely/ledger,jwakely/ledger,paulbdavis/ledger,afh/ledger,paulbdavis/ledger,afh/ledger,duncanmortimer/ledger,ledger/ledger,afh/ledger,duncanmortimer/ledger,paulbdavis/ledger,paulbdavis/ledger,jwakely/ledger,jwakely/ledger,jwakely/ledger,ledger/ledger