[MacPorts] #50622: virtualbox: update to 5.0.14

[MacPorts]

#50622: virtualbox: update to 5.0.14
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  Reporter:  1-61803     |      Owner:  macports-tickets@…
      Type:  update      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  virtualbox  |
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Comment (by socratisk):

 Hey everyone, just joined in to say that I have a set of instructions on
 how to build 5.1.2 (and later) on 10.9 up to 10.13 (no 10.14 available
 macports yet). What is it required to do a proper MacPorts build? I could
 take over this, since I've been building my own VirtualBox with MacPorts
 for quite some time now...

 The instructions for building VirtualBox from the source are in
 [https://forums.virtualbox.org/viewtopic.php?f=31&t=83521 Build VirtualBox
 ≥ 5.1.2 on OSX ≥ 10.9], with the discussion in
 [https://forums.virtualbox.org/viewtopic.php?f=10&t=88012 (Discussion)
 Build VirtualBox ≥ 5.1.2 on OSX ≥ 10.9].

 If it's a matter of keeping things up to date, I could help with that.
 Just let me know how to coordinate it...

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Ticket URL: <https://trac.macports.org/ticket/50622#comment:9>
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