http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50294
--- Comment #7 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-09-06 10:21:42 UTC --- > And 32-bit for 32-bit targets? sizetype is 32bits there ... No, 64-bit type are supported universally. Of course your mileage may vary for array types indexed with a 64-bit type...