cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations wctype/iswalpha_l.c -o wctype/iswalpha_l -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
wctype/iswalpha_l.c:5:32: error: ‘iswalpha_l’ undeclared here (not in a function); did you mean ‘iswalpha’?
    5 | int (*foo)(wint_t, locale_t) = iswalpha_l;
      |                                ^~~~~~~~~~
      |                                iswalpha