[MacPorts] #60835: /usr/local missing from gcc10 library and include search path

[MacPorts]

#60835: /usr/local missing from gcc10 library and include search path
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  Reporter:  krovetz  |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.6.2
Resolution:           |   Keywords:
      Port:  gcc10    |
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Comment (by kencu):

 see also [ticket:52828]

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Ticket URL: <https://trac.macports.org/ticket/60835#comment:6>
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