/tmp/ccuE659E.o:在函数‘threadStayPointDetect()’中: /home/patten/workspace/xj_collide/xj_collide/OO_solution_cpp98/src/main.cpp:91:对‘pthread_create’未定义的引用 /home/patten/workspace/xj_collide/xj_collide/OO_solution_cpp98/src/main.cpp:92:对‘pthread_detach’未定义的引用 collect2: ...