[MacPorts] #50099: clasp @3.1.1: update to 3.1.4; use the right compiler

[MacPorts]

#50099: clasp @3.1.1: update to 3.1.4; use the right compiler
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  Reporter:  davide.liessi@…  |      Owner:  mww@…
      Type:  update           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:  haspatch
      Port:  clasp            |
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Comment (by davide.liessi@…):

 Maybe only setting CXX is necessary, but the others don't hurt anyway.

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Ticket URL: <https://trac.macports.org/ticket/50099#comment:2>
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