[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:  closed
  Priority:  Low              |  Milestone:
 Component:  ports            |    Version:  2.2.99
Resolution:  fixed            |   Keywords:  powerpc
      Port:  libvpx           |
------------------------------+----------------------

Comment (by ryandesign@…):

 I also built libvpx 1.4.0 with this dependency change for ppc on Tiger
 without yasm installed, which worked fine.

 I was not able to build universal ppc i386 on Tiger, but I think that
 affects all ports, because the apple-gcc42 port, which all ports use to
 compile on Tiger, only supports either all-Intel or all-PowerPC universal
 builds.

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Ticket URL: <https://trac.macports.org/ticket/40154#comment:11>
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