__ms_va_list and NULL

[Piotr Caban]

On 05/10/11 20:02, André Hentschel wrote:
> Hi Piotr and folks,
> Most ARM crosscompilers (can't test with a native ARM one right now) don't like using NULL for a va_list and i'm not the only one seeing this issue.
> Piotr, i think that's your code, so maybe you can tell if it needs to be tuned or if that is a bug in the compiler (as the normal x86(_64) gcc works here).
> I hacked around that issue and attached the patch for documentation purpose, at least it compiles fine, don't know if it runs.
I don't know if it's a compiler fault or the code is faulty.

Adding empty __ms_va_lists looks suspicious. In this case there's always 
proper valist and you can pass (no need to create new). It will be 
ignored in the same way NULL is.