cc -O2 -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations locale/uselocale.c -o locale/uselocale -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lintl -lcrypt
locale/uselocale.c:5:30: error: 'uselocale' undeclared here (not in a function); did you mean 'setlocale'?
    5 | locale_t (*foo) (locale_t) = uselocale;
      |                              ^~~~~~~~~
      |                              setlocale