[MacPorts] #65993: double-conversion fails to build as +universal: g++-4.2: -E, -S, -save-temps and -M options are not allowed with multiple -arch flags

[MacPorts]

#65993: double-conversion fails to build as +universal: g++-4.2: -E, -S, -save-
temps and -M options are not allowed with multiple -arch flags
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  Reporter:  barracuda156       |      Owner:  (none)
      Type:  defect             |     Status:  new
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:  2.7.2
Resolution:                     |   Keywords:  powerpc, leopard, ppc64
      Port:  double-conversion  |
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Comment (by kencu):

 you have two choices:

 1. strip out the unsupported flags
 1. use the muniversal PG

 MacPorts prefers the first, but it’s often much easier to do the second.

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Ticket URL: <https://trac.macports.org/ticket/65993#comment:1>
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