cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations sys_socket/accept4.c -o sys_socket/accept4 -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt 
relibc getrlimit(3, 0x7ffffffffc80): not implemented
relibc getrlimit(3, 0x7ffffffffbb0): not implemented
relibc getrlimit(9, 0x7ffffffffb70): not implemented
relibc getrlimit(9, 0x7ffffffffba0): not implemented
relibc getrlimit(5, 0x7ffffffffba0): not implemented
relibc getrlimit(9, 0x7ffffffffb70): not implemented
sys_socket/accept4.c:5:72: error: 'accept4' undeclared here (not in a function); did you mean 'accept'?
    5 | int (*foo)(int, struct sockaddr *restrict, socklen_t *restrict, int) = accept4;
      |                                                                        ^~~~~~~
      |                                                                        accept