cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations sys_stat/fchmodat.c -o sys_stat/fchmodat -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_stat/fchmodat.c:5:46: error: 'fchmodat' undeclared here (not in a function); did you mean 'fchmod'?
    5 | int (*foo)(int, const char *, mode_t, int) = fchmodat;
      |                                              ^~~~~~~~
      |                                              fchmod