Hi James,

quoted

  From the links provided in the patch it seems that one cannot pass
char/float/short to va_start().  Fair enough.  So if we make h3 an
unsigned int, the issue goes away, no?

For the current version of clang, yes.  However, if we're fixing this
for good a char * pointer is the only guaranteed thing because it
mirrors current use in printf.

All right.  I guess I wasn't aware that non-printf like variadic 
functions are now considered harmful or of the impending crusade against 
them :)

But in the context of this patch, can we please use something less 
invasive than changing all the arguments around?  Promoting h3 to a bool 
(if possible) or int/unsigned int would get my vote.

Regards,
-Denis