cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations pthread/pthread_atfork.c -o pthread/pthread_atfork -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
pthread/pthread_atfork.c:6:61: error: ‘pthread_atfork’ undeclared here (not in a function); did you mean ‘pthread_attr_t’?
    6 | int (*foo)(void (*)(void), void (*)(void), void(*)(void)) = pthread_atfork;
      |                                                             ^~~~~~~~~~~~~~
      |                                                             pthread_attr_t