gcc/g++ failures after xcode11 update

[Jack Howarth]

Beyond the /usr/include issue, Xcode 11 should be problematic when its
bundled 10.15 SDK is used under either Mojave or Catalina due to the
enforced use of the availability attribute in the headers.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90835


On Wed, Sep 25, 2019 at 5:46 AM Chris Jones <jonesc at hep.phy.cam.ac.uk>
wrote:

>
> >> (*) The package to add back /usr/include currently does not exist in
> >> 10.15 beta, so unless it reappears come final release this is going to
> >> be more of a problem there….
> >
> > This package is not going to be coming back:
> >
> https://developer.apple.com/documentation/xcode_release_notes/xcode_10_release_notes#3035623
> >
>
> Indeed, it is not at all unexpected to no longer have this option with
> Xcode 11.
>
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