cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations locale/freelocale.c -o locale/freelocale -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
locale/freelocale.c:5:25: error: ‘freelocale’ undeclared here (not in a function); did you mean ‘setlocale’?
    5 | void (*foo)(locale_t) = freelocale;
      |                         ^~~~~~~~~~
      |                         setlocale