x86_64-managarm-gcc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations time/strftime_l.c -o time/strftime_l -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
time/strftime_l.c:5:88: error: unknown type name ‘locale_t’
    5 | size_t (*foo)(char *restrict, size_t, const char *restrict, const struct tm *restrict, locale_t) = strftime_l;
      |                                                                                        ^~~~~~~~