[MacPorts] #47255: making port:xz optionally independent of other ports

[MacPorts]

#47255: making port:xz optionally independent of other ports
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  Reporter:  rjvbertin@…  |      Owner:  ryandesign@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  xz           |
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Comment (by ryandesign@…):

 Replying to [comment:4 ryandesign@…]:
 > There's [https://jnovy.fedorapeople.org/pxz/ pxz] which I wanted to make
 a port of, but the official source download is
 [https://github.com/jnovy/pxz/issues/21 over 5 years old] and there has
 been no movement on my request to release a new version;

 Forgot this was submitted in #46732.

 > There's [https://github.com/vasi/pixz pixz] which is 2-clause BSD
 licensed. It needs xz's liblzma but as per above that's public domain. I
 think I'll try to make a port for this.

 Done in r134404, but it also requires libarchive, which has its own
 dependencies.

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Ticket URL: <https://trac.macports.org/ticket/47255#comment:5>
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