[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 mascguy):

 Replying to [comment:2 jmroot]:
 > There's a part in the Portfile where it tries to figure out which archs
 can be run on the build machine. It looks like this code doesn't account
 for arm64 systems.

 Yep. And ideally we shouldn't need it, if we could leverage what's already
 being done by `muniversal`.

 So I could use some advice/guidance on this, from you more Universal-savvy
 folks:
 * The port is based on `muniversal 1.0`. Would migrating to `muniversal
 1.1` assist at all with this?
 * Suggestions on how to eliminate the logic in question?

-- 
Ticket URL: <https://trac.macports.org/ticket/68112#comment:3>
MacPorts <https://www.macports.org/>
Ports system for macOS