x86_64-managarm-gcc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations wchar/wcsxfrm_l.c -o wchar/wcsxfrm_l -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
wchar/wcsxfrm_l.c:5:67: error: unknown type name ‘locale_t’
    5 | size_t (*foo)(wchar_t *restrict, const wchar_t *restrict, size_t, locale_t) = wcsxfrm_l;
      |                                                                   ^~~~~~~~