[MacPorts] #59985: python37, python38: error: cannot run C compiled programs

[MacPorts]

#59985: python37, python38: error: cannot run C compiled programs
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  Reporter:  AgilentGCMS  |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:               |
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Comment (by ryandesign):

 Ok, that's certainly not how MacPorts is intended to be used and it's not
 something I'm going to support. gcc on macOS is dead to me, and probably
 to Apple as well. As you're seeing here, gcc can't even compile a simple
 test program used during configuration due to some disagreement between
 gcc's headers and macOS system headers. I'm not going to debug this
 further.

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Ticket URL: <https://trac.macports.org/ticket/59985#comment:3>
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