[MacPorts] #64599: Add SSPL to distributable_lib.tcl to make mongodb (more) distributable

[MacPorts]

#64599: Add SSPL to distributable_lib.tcl to make mongodb (more) distributable
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  Reporter:  ryandesign      |      Owner:  admin@…
      Type:  defect          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  server/hosting  |    Version:
Resolution:                  |   Keywords:
      Port:                  |
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Comment (by jmroot):

 Updating `good_licenses` is easy, it's just a list of all known licenses
 that are distributable on their own. The conflicts are the tricky part. If
 SSPL is adding additional terms to GPL-3, then presumably it conflicts
 with all other extant GPL versions and variants (AGPL, CeCILL) as well as
 all the things that GPL-3 conflicts with. But someone need to actually
 read the license and compare the differences, and consider what other
 commonly used license terms might conflict with it.

 > I don't know whether or how the distinction between "AGPL" and "AGPL-1"
 applies to SSPL.

 In the conflicts, a license name with no trailing version means all
 versions of that license. So the distinction between "AGPL" and "AGPL-1"
 is like the distinction between "GPL", "GPL-1", "GPL-2", and "GPL-3". The
 current version of the SSPL is 1, but since there are no other versions
 currently, it only needs unversioned conflict entries.

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Ticket URL: <https://trac.macports.org/ticket/64599#comment:1>
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