[MacPorts] #66720: metis fails to build on Rosetta due to usage of wrong flags

[MacPorts]

#66720: metis fails to build on Rosetta due to usage of wrong flags
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  Reporter:  barracuda156  |      Owner:  catap
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.8.0
Resolution:                |   Keywords:  powerpc, rosetta, snowleopard
      Port:  metis         |
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Comment (by kencu):

 the thing to do here is to remove "-Werror", which we don't recommend  any
 software to use in the released port version.

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Ticket URL: <https://trac.macports.org/ticket/66720#comment:1>
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