[MacPorts] #50687: netgen @5.3.1 Add nglib and occ variants

[MacPorts]

#50687: netgen @5.3.1 Add nglib and occ variants
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  Reporter:  ian.rees@…   |      Owner:  sean@…
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  netgen       |
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Comment (by mark.brethen@…):

 I tested ng_vol with calculix and it is working so the ng_vol.cpp.diff can
 be discarded. Netgen is a run dependency but you can also use gmsh with
 calculix. You wouldn't need to merge the nglib and occ variants before the
 calculix release.

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Ticket URL: <https://trac.macports.org/ticket/50687#comment:11>
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