[MacPorts] #70073: libminc uses wrong mpich includes and needs a fix to compiler choice

[MacPorts]

#70073: libminc uses wrong mpich includes and needs a fix to compiler choice
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  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.9.3
Resolution:                |   Keywords:
      Port:  libminc       |
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Comment (by barracuda156):

 Yes, `gcc-4.2` (and yet older will also fail, obviously).

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Ticket URL: <https://trac.macports.org/ticket/70073#comment:2>
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