if(binfo.threads && arch.get_system()!="windows" && arch.get_system()!="darwin")
argv.push_back("-pthread");
if(object.is_used_in_shared_library() && arch.get_system()!="windows")
if(binfo.threads && arch.get_system()!="windows" && arch.get_system()!="darwin")
argv.push_back("-pthread");
if(object.is_used_in_shared_library() && arch.get_system()!="windows")