[MacPorts] #64906: fixing Ruby for PowerPC

[MacPorts]

#64906: fixing Ruby for PowerPC
-----------------------------+-------------------------------------------
  Reporter:  barracuda156    |      Owner:  kimuraw
      Type:  defect          |     Status:  closed
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.7.2
Resolution:  wontfix         |   Keywords:  powerpc, leopard, snowleopard
      Port:  ruby27, ruby30  |
-----------------------------+-------------------------------------------
Changes (by kimuraw):

 * status:  assigned => closed
 * resolution:   => wontfix


Comment:

 ppc Mac is not target of ruby-2.0 (released 2013) or later for ruby dev
 team.
 ruby 2.6->2.7 and 2.7->3.0 contains many changes of core system.
 I do not think we can let to work ruby2.7 or 3.x on ppc Mac with a little
 change to current code.

 I'll set `supported_archs` into Portfiles.

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Ticket URL: <https://trac.macports.org/ticket/64906#comment:8>
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