[MacPorts] #64985: atlas fails on 10.6.8 Rosetta: error: invalid parameter combination for AltiVec intrinsic

[MacPorts]

#64985: atlas fails on 10.6.8 Rosetta: error: invalid parameter combination for
AltiVec intrinsic
---------------------------+-------------------------------------------
  Reporter:  barracuda156  |      Owner:  Veence
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.2
Resolution:                |   Keywords:  powerpc, snowleopard, rosetta
      Port:  atlas         |
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Comment (by Veence):

 That could work, but you can’t do any cross-compiling with Atlas, because
 for each matrix function to be included in the library, the building code
 compiles a set of candidates and compares their performance, selecting the
 best one. If you cross-compile and use Rosetta, that process makes no
 sense any more, and you end up with a random and possibly defective
 library.

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Ticket URL: <https://trac.macports.org/ticket/64985#comment:5>
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