[MacPorts] #40154: libvpx: don't depend on yasm on PowerPC

[MacPorts]

#40154: libvpx: don't depend on yasm on PowerPC
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  Reporter:  Peter_Dyballa@…  |      Owner:  devans@…
      Type:  defect           |     Status:  assigned
  Priority:  Low              |  Milestone:
 Component:  ports            |    Version:  2.2.99
Resolution:                   |   Keywords:  powerpc
      Port:  libvpx           |
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Comment (by devans@…):

 Replying to [comment:6 larryv@…]:
 > I can test Rosetta builds on x86_64 Leopard and Snow Leopard.

 Great.  See initial libvpx 1.4.0 test port attached to #47907.  All
 testing help is gratefully received.

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Ticket URL: <https://trac.macports.org/ticket/40154#comment:7>
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