[Bug target/118329] avr defines __int24 but doesn't define __GLIBCXX_TYPE_INT_N_0

[gjl at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118329

--- Comment #6 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Currently there is:

static void
avr_init_builtin_int24 (void)
{
  tree int24_type  = make_signed_type (GET_MODE_BITSIZE (PSImode));
  tree uint24_type = make_unsigned_type (GET_MODE_BITSIZE (PSImode));

  lang_hooks.types.register_builtin_type (int24_type, "__int24");
  lang_hooks.types.register_builtin_type (uint24_type, "__uint24");
}

AFAIU, the definition for __int24 is no more needed with INT_N, but __uint24
should still work? Or just

  lang_hooks.types.register_builtin_type (uint24_type, "unsigned __int24");