cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations stdlib/at_quick_exit.c -o stdlib/at_quick_exit -D_POSIX_C_SOURCE=202405L -lm -lpthread -lnetwork -lbsd -latomic
stdlib/at_quick_exit.c:5:30: error: 'at_quick_exit' undeclared here (not in a function)
    5 | int (*foo)(void (*)(void)) = at_quick_exit;
      |                              ^~~~~~~~~~~~~