https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119590
Alisdair Meredith <alisdairm at me dot com> changed:
What |Removed |Added
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CC| |alisdairm at me dot com
--- Comment #7 from Alisdair Meredith <alisdairm at me dot com> ---
For a short term workaround adding `-D_Alignof=alignof` to your command lines
should work -- at least according to my quick testing.
If gcc were to add `_Alignof` support in C++, we might still need that -D hack
in order to build the initial compiler --- but that assumes we do not wait for
Apple to update their SDK, if they believe that this is an issue they are
concerned about.