gcc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations libintl/ngettext_l.c -o libintl/ngettext_l -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lxnet -lsocket -latomic
libintl/ngettext_l.c:5:61: error: unknown type name ‘locale_t’
    5 | char *(*foo)(const char *, const char *, unsigned long int, locale_t) = ngettext_l;
      |                                                             ^~~~~~~~