[MacPorts] #61086: graphviz at 2.40.1_3+pangocairo+x11: /usr/lib//libiconv.la: No such file

[MacPorts]

#61086: graphviz at 2.40.1_3+pangocairo+x11: /usr/lib//libiconv.la: No such file
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  Reporter:  JDLH      |      Owner:  ryandesign
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.6.3
Resolution:            |   Keywords:
      Port:  graphviz  |
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Comment (by JDLH):

 Why are these very old, and unclaimed, libraries in `/opt/local/lib`? I
 have upgraded macOS at least three times since 2008, and moved hardware at
 least twice. I followed the instructions for migrating MacPorts to the new
 OS. That includes listing the ports, uninstalling all of the ports, and
 reinstalling. However, it does not include deleting all of `/opt/local/*`.
 When migrating hardware, I use the Apple Migration Assistant, which
 probably copies all of `/opt/local/*` to the new machine. Maybe I should
 delete the whole directory next time I migrate to a new macOS version.

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Ticket URL: <https://trac.macports.org/ticket/61086#comment:6>
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