reference - 使用什么库来避免对“pthread_atfork”的未定义引用

Question

即使在使用 pthread 库之后，我也会得到对“pthread_atfork”的未定义引用。是否有任何单独的图书馆？

Answer 1

pthread_atfork() 是 POSIX 规范的一部分，因此它应该存在于常规 pthread 库中。

您可能必须为编译器和链接器指定选项才能使用 pthread 构建。例如，使用 gcc/linux：

-pthread
       Adds support for multithreading with the pthreads library.  This option sets flags for both the
       preprocessor and linker.

Answer 2

If you are building for Android, then pthread_atfork() is not included in Bionic libc. Check out this question for more information:

"undefined reference to pthread_atfork" while I was trying to port libpcsclite to Android