[MacPorts] #55256: qt5-qtbase: no longer distributable

[MacPorts]

#55256: qt5-qtbase: no longer distributable
--------------------+---------------------------------------------
 Reporter:  mojca   |      Owner:  MarcusCalhoun-Lopez, ryandesign
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:  qt5-qtbase
--------------------+---------------------------------------------
 The `qt5-qtbase` version 5.9.2_1 is available on the server as a binary,
 but since [https://github.com/macports/macports-
 ports/commit/f782c1373eece04abfcad9a5511c42ed39f0a731 yesterday's update]
 the buildbot says
 {{{
 "qt5-qtbase" is not distributable because its dependency "xattr" has
 license "unknown" which is not known to be distributable
 }}}

 For such a massive package it would be nice to resolve the problem.

 This also raises an unrelated question: what happens to distributability
 of existing packages (or lack of them) when a licence of a dependency
 changes or when a dependency changes its own dependencies?

--
Ticket URL: <https://trac.macports.org/ticket/55256>
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