[MacPorts] #56637: cmake and gobject_introspection portgroups together cause invalid CC archflags

[MacPorts]

#56637: cmake and gobject_introspection portgroups together cause invalid CC
archflags
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  Reporter:  drkp    |      Owner:  jmroot
      Type:  defect  |     Status:  closed
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:  fixed   |   Keywords:
      Port:          |
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Comment (by jmroot):

 Yes, I just did it in the commit referenced above. When you set an option,
 each argument becomes a list element. Passing a list as one argument thus
 adds more quoting. Splitting the list into separate args with `{*}` avoids
 it.

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Ticket URL: <https://trac.macports.org/ticket/56637#comment:9>
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