[MacPorts] #60032: MongoDB 4.2.3 fails to build on High Sierra

[MacPorts]

#60032: MongoDB 4.2.3 fails to build on High Sierra
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  Reporter:  rseichter  |      Owner:  ryandesign
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.2
Resolution:             |   Keywords:
      Port:  mongodb    |
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Comment (by acmorrow):

 Hi, I'm one of the maintainers of the MongoDB build system. We saw that
 you opened https://jira.mongodb.org/browse/SERVER-45922, but having come
 over to this issue it appears that you have it resolved. The details of
 what was fixed seem very MacPorts specific, and it isn't an environment I
 know well, so the details of the fix are a bit opaque to me. It looks like
 the fix was to require the Xcode linker? If so, that would make sense to
 me, as Xcode is the only toolchain we use in our macOS CI build and test.
 Still, I wanted to check in to see whether there was anything we at
 MongoDB could do in our build system that would have avoided this issue
 for you, or at least made it simpler to diagnose?

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Ticket URL: <https://trac.macports.org/ticket/60032#comment:21>
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