cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations libintl/gettext_l.c -o libintl/gettext_l -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lcrypt -latomic
libintl/gettext_l.c:5:28: error: unknown type name ‘locale_t’
    5 | char *(*foo)(const char *, locale_t) = gettext_l;
      |                            ^~~~~~~~