[MacPorts] #64840: gcc10 fails to compile on macOS 12.3 Monterey, Xcode 13.3 on arm64 (M1 Max)

[MacPorts]

#64840: gcc10 fails to compile on macOS 12.3 Monterey, Xcode 13.3 on arm64 (M1 Max)
-------------------------------+--------------------
  Reporter:  ChristopherMayes  |      Owner:  (none)
      Type:  defect            |     Status:  new
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:  2.7.2
Resolution:                    |   Keywords:  arm64
      Port:  gcc10             |
-------------------------------+--------------------

Comment (by kencu):

 See also https://github.com/iains/gcc-10-branch and
 https://github.com/iains/gcc-10-branch/issues/4 where Iain has fixed
 gcc10, at least, for Monterey. It says also for arm64, but I haven't
 verified that myself as I have no arm64 Apple system as yet.

 I can't tell if there is an arm64 working branch for gcc11 there too
 <https://github.com/iains/gcc-11-branch>, but homebrew has gcc11 working
 on arm64 <https://github.com/Homebrew/homebrew-
 core/blob/HEAD/Formula/gcc.rb> so it appears possible.

-- 
Ticket URL: <https://trac.macports.org/ticket/64840#comment:4>
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