[MacPorts] #52797: generate a relocatable xz executable

[MacPorts]

#52797: generate a relocatable xz executable
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  Reporter:  RJVB         |      Owner:  ryandesign
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  xz           |
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Comment (by RJVB):

 Sure, but that can only be done in the next release. In the meantime it
 has been possible for quite a while to compress locally built software
 archives with xz (`portarchivetype txz` in macports.conf). Which works
 fine until you try to update xz or one of its dependencies.

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Ticket URL: <https://trac.macports.org/ticket/52797#comment:5>
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