Add support for GCC_WARN_ABOUT_INVALID_OFFSETOF_MACRO to xcode emulation.

Add support for GCC_WARN_ABOUT_INVALID_OFFSETOF_MACRO to xcode emulation.
Committed: https://code.google.com/p/gyp/source/detail?r=1395

[Nico, 2012-05-25 00:38:30]

Can't you change your code to use __builtin_offsetof when __GNUC__ is set?

[viettrungluu, 2012-05-25 16:16:54]

On 2012/05/25 00:38:30, Nico wrote:
> Can't you change your code to use __builtin_offsetof when __GNUC__ is set?

It's not my code.

[viettrungluu, 2012-05-25 16:30:07]

On 2012/05/25 16:16:54, viettrungluu wrote:
> On 2012/05/25 00:38:30, Nico wrote:
> > Can't you change your code to use __builtin_offsetof when __GNUC__ is set?
> 
> It's not my code.

Though I suppose it's a C++/Obj-C++ only flag. New patch set uploaded.

[Nico, 2012-05-25 18:17:08]

On 2012/05/25 16:30:07, viettrungluu wrote:
> On 2012/05/25 16:16:54, viettrungluu wrote:
> > On 2012/05/25 00:38:30, Nico wrote:
> > > Can't you change your code to use __builtin_offsetof when __GNUC__ is set?
> > 
> > It's not my code.
> 
> Though I suppose it's a C++/Obj-C++ only flag. New patch set uploaded.

Can you add a test?

[viettrungluu, 2012-05-25 22:23:21]

On 2012/05/25 18:17:08, Nico wrote:
> On 2012/05/25 16:30:07, viettrungluu wrote:
> > On 2012/05/25 16:16:54, viettrungluu wrote:
> > > On 2012/05/25 00:38:30, Nico wrote:
> > > > Can't you change your code to use __builtin_offsetof when __GNUC__ is
set?
> > > 
> > > It's not my code.
> > 
> > Though I suppose it's a C++/Obj-C++ only flag. New patch set uploaded.
> 
> Can you add a test?

You get a bonus test too.

[Nico, 2012-05-25 22:27:56]

LGTM!