[MacPorts] #62910: netcdf-cxx4 does not build on 11.3.1

[MacPorts]

#62910: netcdf-cxx4 does not build on 11.3.1
--------------------+-------------------------
 Reporter:  pcmock  |      Owner:  tenomoto
     Type:  defect  |     Status:  assigned
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.6.4
 Keywords:  netcdf  |       Port:  netcdf-cxx4
--------------------+-------------------------
 netcdf-cxx4 4.3
 Error: Processing of port netcdf-cxx4 failed
 Mac OS 11.3.1
 xcode 12.5

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Ticket URL: <https://trac.macports.org/ticket/62910>
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