[MacPorts] #61711: pgplot fails to build on Apple Silicon

[MacPorts]

#61711: pgplot fails to build on Apple Silicon
---------------------+---------------------------------
  Reporter:  rth238  |      Owner:  MarcusCalhoun-Lopez
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.6.4
Resolution:          |   Keywords:
      Port:  pgplot  |
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Comment (by reneeotten):

 Replying to [comment:3 jmroot]:
 > I think this is more a GCC 11 thing than an Apple Silicon thing, the
 latter just happens to require the former.

 Perhaps {{{gcc-devel}}} needs to be added in the compilers-1.0 PG (likely
 somewhere [https://github.com/macports/macports-
 ports/blob/f62ba64ef289b0e87ebc43e2fdb71bc5d3d8c9a6/_resources/port1.0/group/compilers-1.0.tcl#L731
 here])?

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Ticket URL: <https://trac.macports.org/ticket/61711#comment:6>
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