[MacPorts] #66631: groff fails to configure under universal variant

[MacPorts]

#66631: groff fails to configure under universal variant
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  Reporter:  MichaelGDev48  |      Owner:  (none)
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.8.99
Resolution:                 |   Keywords:
      Port:  groff          |
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Comment (by MichaelGDev48):

 is there a way i can specify to use macOS 10 sdk then?

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Ticket URL: <https://trac.macports.org/ticket/66631#comment:2>
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