[MacPorts] #68112: gtk3 @3.24.38+universal: Error: gtk3 requires at least one architecture runnable on this machine to be able to build universally

[MacPorts]

#68112: gtk3 @3.24.38+universal: Error: gtk3 requires at least one architecture
runnable on this machine to be able to build universally
------------------------+----------------------
  Reporter:  Liontooth  |      Owner:  mascguy
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  arm64
      Port:  gtk3       |
------------------------+----------------------

Comment (by Liontooth):

 Hi Chris! You're no doubt a busy man. I'm still getting

  unknown target 'CC=/usr/bin/clang -arch arm64'

 Why isn't this particular package familiar with arm64? Since we're
 building for arm64 all the time, what is it that gtk3 is doing that makes
 the ninja build tool not recognize the target?

 Build failure on arm64 with --build-tool=ninja
 https://github.com/randombit/botan/issues/3750 is reported fixed for botan
 with Fix Ninja build to pass instruction set flags to the compiler
 https://github.com/randombit/botan/pull/3751.

 https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f84e0bd3e7f13888c343883bbc5e0b26b0694bf3
 shows the details, involving

   --cpu=${chostarch}

-- 
Ticket URL: <https://trac.macports.org/ticket/68112#comment:6>
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