[MacPorts] #59181: heirloom-doctools is not using the right compiler

[MacPorts]

#59181: heirloom-doctools is not using the right compiler
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  Reporter:  ryandesign         |      Owner:  mohd-akram
      Type:  defect             |     Status:  assigned
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:  2.6.1
Resolution:                     |   Keywords:
      Port:  heirloom-doctools  |
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Comment (by ryandesign):

 Nor is it using the required `-arch` flags.

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Ticket URL: <https://trac.macports.org/ticket/59181#comment:1>
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