[MacPorts] #61471: virt-manager fails to load shared library on Big Sur

[MacPorts]

#61471: virt-manager fails to load shared library on Big Sur
---------------------------+----------------------
  Reporter:  idryzhov      |      Owner:  danchr
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.6.4
Resolution:                |   Keywords:
      Port:  virt-manager  |
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Comment (by ra1nb0w):

 After updating the ports tree you need to force the rebuild (they need to
 revdump the ports):
 {{{
 sudo port -sn upgrade --force gobject-introspection gdk-pixbuf2
 }}}
 Then it should work fine.

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Ticket URL: <https://trac.macports.org/ticket/61471#comment:9>
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