[MacPorts] #66634: simde fails to build on 10.6.8

[MacPorts]

#66634: simde fails to build on 10.6.8
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  Reporter:  barracuda156  |      Owner:  jasonliu--
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.8.0
Resolution:                |   Keywords:  snowleopard, rosetta, powerpc
      Port:  simde         |
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Comment (by kencu):

 all these {{{PRId8}}} etc are fixed by adding those stdc format macros,
 etc, as you recall from that port a few months ago we fixed w catap.

 add those defs, then see where you get.

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Ticket URL: <https://trac.macports.org/ticket/66634#comment:1>
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