"Tovrea, George W (US SSA)" <george.tovrea@xxxxxxxxxxxxxx> writes: > Getting the following "unrecognized options": > g++: unrecognized option '-pthreads' The gcc option is "-pthread", not "-pthreads". > g++: unrecognized option '-no_auto_include' This is not a gcc option at all. I don't know what it means, so I don't know whether gcc has a comparable option. Ian