c++使用thread類時編譯出錯，對‘pthread_create’未定義的引用
阿新 • • 發佈：2018-02-09
cti undefine defined 系統默認 func ext reat lec status /tmp/ccM2tvqF.o: In function `main':
thread_c.c:(.text+0x1f): undefined reference to `pthread_create'
thread_c.c:(.text+0x52): undefined reference to `pthread_create'
thread_c.c:(.text+0x7d): undefined reference to `pthread_join'
thread_c.c:(.text+0xa9): undefined reference to `pthread_join'
thread_c.c:(.text+0x1f): undefined reference to `pthread_create'
thread_c.c:(.text+0x52): undefined reference to `pthread_create'
thread_c.c:(.text+0x7d): undefined reference to `pthread_join'
thread_c.c:(.text+0xa9): undefined reference to `pthread_join'
查了老半天，以為代碼的問題，最後才知道是因為pthread庫不是Linux系統默認的庫，連接時需要使用庫libpthread.a,所以在使用pthread_create創建線程時，在編譯中要加-lpthread參數:gcc test_thread.c
-lpthread -o test_thread. 加上這個以後編譯成功！
c++使用thread類時編譯出錯，對‘pthread_create’未定義的引用