[MacPorts] #22557: MacPorts base should verify build_arch has a sensible value

[MacPorts]

#22557: MacPorts base should verify build_arch has a sensible value
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  Reporter:  ryandesign@…  |      Owner:  macports-tickets@…
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:  MacPorts Future
 Component:  base          |    Version:  1.8.1
Resolution:                |   Keywords:
      Port:                |
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Comment (by rogerdpack@…):

 I believe this has been resolved now.  If I  enter a "garbage" build_arch
 I get this (slightly unhelpful) error message, at least, these days:

 Error: Unable to open port: can't read "my_targets(garbage)": no such
 element in array

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Ticket URL: <https://trac.macports.org/ticket/22557#comment:5>
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