[MacPorts] #51799: add a concept of 'distributions' for ports that work on specific older architectures

[MacPorts]

#51799: add a concept of 'distributions' for ports that work on specific older
architectures
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  Reporter:  kenneth.f.cunningham@…  |      Owner:  macports-tickets@…
      Type:  enhancement             |     Status:  new
  Priority:  Normal                  |  Milestone:
 Component:  base                    |    Version:  2.3.4
Resolution:                          |   Keywords:
      Port:                          |
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Comment (by kenneth.f.cunningham@…):

 Thanks, raimue. I believe I see how what you suggest can make this work
 now.

 I have an example (perhaps a silly example, but illustrative) for Tiger.
 The qt4-mac current revision does not work on Tiger (and it never will -
 the underpinnings moved on to 10.5+ as of the 4.8.x version). But qt4-mac
 4.7.4_1 works just fine, and enables certain software to work. That
 corresponds to r87272 in the qt4-mac portfile history, which appears to be
 the last revision of qt4-mac that will ever work on Tiger, and which I
 just installed on one of my Tiger machines without issue.  So that version
 will go into a local port repository for Tiger, and hopefully will stop
 any upgrade requests for that port. And so on for whatever other similar
 end-of-the-road ports we / I come across for Tiger.

 And likewise for Snow Leopard and Leopard, I can forsee.

 And maybe someday I can make this local repository available for someone
 else to install on their machine, so they will get working ports from the
 get go on these older systems.

 Thanks for the suggestion and info. Ken

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Ticket URL: <https://trac.macports.org/ticket/51799#comment:4>
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