[MacPorts] #69639: netcdf fails to build on Sonoma macOS 14.4.1

[MacPorts]

#69639: netcdf fails to build on Sonoma macOS 14.4.1
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  Reporter:  EJFielding  |      Owner:  tenomoto
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.9.1
Resolution:              |   Keywords:
      Port:  netcdf      |
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Comment (by ryandesign):

 I don't think the xz backdoor situation has any bearing on this ticket.
 Apple's omission of m4 from the Xcode 15.3 CLT is clearly a mistake and
 not deliberate, since they still included m4 under its alternate name gm4,
 they still included both m4 and gm4 in the full Xcode 15.3, and 15.3 was
 released before the existence of the xz backdoor was disclosed.

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Ticket URL: <https://trac.macports.org/ticket/69639#comment:3>
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