Re: [Tinycc-devel] Trouble on x86-64, not windows, not gcc

[Michael Matz]

Hi,

On Sun, 10 Jul 2016, Michael Matz wrote:

> > TCC's handling of variable argument lists are spelled out in stdarg.h, 
> > with implementation in libtcc1.c. I think that for 64-bit machines, we 
> > should also check for clang, and then use clang-compatible definitions.

Oh, I forgot to expand here: the clang compatible definitions use the 
builtin type __builtin_va_list (like GCC).  That ultimately is a struct 
type that's layout compatible with the va_list as defined in TCCs 
<stdarg.h>; or it better should be (I haven't checked the clang sources 
for this), otherwise compatibility between GCC and clang on Darwin would 
be broken.


Ciao,
Michael.