[MacPorts] #64562: "libgcc9 cannot be built while libunwind-headers is active." when migrating from Big Sur to Monterey

[MacPorts]

#64562: "libgcc9 cannot be built while libunwind-headers is active." when migrating
from Big Sur to Monterey
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  Reporter:  MarkCallow  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.1
Resolution:              |   Keywords:
      Port:              |
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Comment (by kencu):

 Great!

 Some of these things are just hard to automate in a migration script
 because you have to guess what people really want.

 It would be simple enough to blacklist a bunch of ports that will not be
 migrated… or automatically changed on migration.

 Some would not like that, though…

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Ticket URL: <https://trac.macports.org/ticket/64562#comment:12>
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