[MacPorts] #66524: Autoremove macports/software not to waste space with archived duplicates

[MacPorts]

#66524: Autoremove macports/software not to waste space with archived duplicates
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  Reporter:  esbugz       |      Owner:  (none)
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:  2.8.0
Resolution:               |   Keywords:
      Port:               |
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Comment (by kencu):

 To really test what happens when you delete the "software" folder, you'd
 need to do some digging... like try to deactivate and reactivate a port,
 and try to rebuild something with dependencies, especially toolchain
 components, and try it in a non-default prefix where the prebuilt binaries
 can't be used, and try to rebuild something where the default stdlib has
 been changed to "libstdc++" from "libc++" for example.

 These are all the kinds of assumptions that homebrew never has to make,
 because they don't really support any of this.

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Ticket URL: <https://trac.macports.org/ticket/66524#comment:7>
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