[MacPorts] #59693: libgcc7 @7.5.0: cannot upgrade or install libgcc7

[MacPorts]

#59693: libgcc7 @7.5.0: cannot upgrade or install libgcc7
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  Reporter:  brolcz   |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.6.2
Resolution:           |   Keywords:
      Port:  libgcc7  |
----------------------+--------------------

Comment (by ryandesign):

 I believe this was fixed in [dcefaea1eca247c8ed6e8feb6d982598446c172e
 /macports-ports]. Please `sudo port selfupdate` and try again.

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Ticket URL: <https://trac.macports.org/ticket/59693#comment:1>
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