macOS/GCC support policy (was: [PATCH v5] Enable xwidgets on macOS)

[Alan Third]

On Thu, Aug 01, 2019 at 05:35:33AM +0300, Eli Zaretskii wrote:
> > Date: Wed, 31 Jul 2019 20:56:33 +0100
> > From: Alan Third <address@hidden>
> > Cc: Eli Zaretskii <address@hidden>, address@hidden
> > 
> > On Wed, Jul 31, 2019 at 12:33:36AM +0900, 조성빈 wrote:
> > > > 2019. 7. 30. 오전 5:26, Alan Third <address@hidden> 작성:
> > > >
> > > > Anyway, the code contains two calls to
> > > > evaluateJavaScript:completionHandler: which is a problem as we’re
> > > > banned from using ObjC blocks, and the completion handler is an ObjC
> > > > block. Unless GCC supports them now, which I doubt.
> > > 
> > > Does that mean this patch can never get merged until gcc supports blocks?
> > 
> > We’ve had to remove blocks from Emacs code before because gcc doesn’t
> > support them, however Emacs can’t be built with gcc on recent (like,
> > the last decade or something) versions of macOS anyway. I don’t really
> > understand the logic, but it’s not my project.
> > 
> > I think it’s really up to Eli and/or RMS.
> 
> I don't think I understand the issue well enough to say anything
> intelligent.  What are "ObjC blocks", and why this patch cannot do
> without them?

I found the previous thread about removing them from macfont.m:

    https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-12/msg00301.html

-- 
Alan Third