[MacPorts] #62881: gcc11: port is deactivating libgcc10, resulting in broken dependent ports

[MacPorts]

#62881: gcc11: port is deactivating libgcc10, resulting in broken dependent ports
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  Reporter:  mascguy  |      Owner:  cjones051073
      Type:  defect   |     Status:  assigned
  Priority:  High     |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  gcc11    |
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Comment (by cjones051073):

 Replying to [comment:27 kencu]:
 > perhaps if each version of libgccN depended on the previous version
 libgccN-1 this situation could be better handled than the force-deactivate
 approach.

 no, it has to be the other way around. We want the newest libgcc to
 provide as much of the runtime it can, and then libgccN-1, to only install
 older versions not provided by any of the newer ones. This is why
 libgccN-1 depends on libgccN.

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Ticket URL: <https://trac.macports.org/ticket/62881#comment:28>
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