[MacPorts] #52742: buildbot: add support for building ports with variants

[MacPorts]

#52742: buildbot: add support for building ports with variants
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  Reporter:  mojca          |      Owner:  admin@…
      Type:  enhancement    |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  buildbot/mpbb  |    Version:
Resolution:                 |   Keywords:  buildbot
      Port:                 |
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Comment (by neverpanic):

 I've been working on getting this working, ideally even without
 modifications to the master.cfg of the buildbot, but I've hit some
 problems. [f6e46815a5033358212ce383956fd567eb51e53c/mpbb] changed the
 variant handling code in mpbb in a way that will cause failures when
 requesting specific variants to be installed. See the commit on GitHub for
 a description of the problem. We would have to revert this commit for this
 effort to proceed, but I'd like to wait for feedback from Joshua before
 doing that.

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Ticket URL: <https://trac.macports.org/ticket/52742#comment:14>
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