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

[Noam Postavsky]

On Thu, 1 Aug 2019 at 17:40, Alan Third <address@hidden> wrote:

> > > > > 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.

> I found the previous thread about removing them from macfont.m:
>
>     https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-12/msg00301.html

If the API requires blocks, I guess they have some stable ABI. Is it
not possible to construct a block at runtime, as a plain C struct?