[MacPorts] #65761: libtextstyle: Can't be built on Rosetta when non Rosetta xz is installed

[MacPorts]

#65761: libtextstyle: Can't be built on Rosetta when non Rosetta xz is installed
---------------------------+--------------------
  Reporter:  catap         |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  libtextstyle  |
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Comment (by ryandesign):

 If you want to build things for ppc on Snow Leopard, either for some ports
 (which as I say is unsupported and fraught with peril) or for all ports,
 then set `build_arch` to `ppc` ''and'' add `ppc` to `universal_archs` (so
 `universal_archs x86_64 i386 ppc`). If you change the value of
 `universal_archs`, you should manually rebuild (or uninstall and
 reinstall) any ports that were already built universal with the previous
 set of universal archs. (MacPorts doesn't expect you to change it after
 ports have been installed.)

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Ticket URL: <https://trac.macports.org/ticket/65761#comment:4>
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