[MacPorts] #63697: libgcc9 @9.4.0: Undefined symbols for architecture x86_64

[MacPorts]

#63697: libgcc9 @9.4.0: Undefined symbols for architecture x86_64
----------------------------+----------------------
  Reporter:  camillegallet  |      Owner:  (none)
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:  monterey
      Port:  libgcc9        |
----------------------------+----------------------

Comment (by hemmlj):

 MacPorts upgrade on MacOs 12 Monterey:
 See Ticket https://trac.macports.org/ticket/64372 for help on this issue:
 Tipp there is  "install gcc11 or gcc-devel". You will have to force
 deactivate and clean some dependent libraries when cleaning your system
 from libgcc and libgcc10. I selected to install gcc-devel. Hope that
 helps!

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Ticket URL: <https://trac.macports.org/ticket/63697#comment:10>
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