[Bug c/116395] -m32 forbids empty scalar initializer

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116395

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
va_list can only be assigned to via another va_list, initialized using va_start
or va_copy.