cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations stdlib/quick_exit.c -o stdlib/quick_exit -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
stdlib/quick_exit.c:5:21: error: ‘quick_exit’ undeclared here (not in a function)
    5 |  void (*foo)(int) = quick_exit;
      |                     ^~~~~~~~~~