[MacPorts] #56241: jack @ 1.9.12_0 fails to upgrade due to using installed headers

[MacPorts]

#56241: jack @ 1.9.12_0 fails to upgrade due to using installed headers
---------------------+------------------------
  Reporter:  ci42    |      Owner:  neverpanic
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  jack    |
---------------------+------------------------

Comment (by neverpanic):

 Actually, I guess this might be a good case for the deactivate hack
 instead. I'll apply that.

-- 
Ticket URL: <https://trac.macports.org/ticket/56241#comment:8>
MacPorts <https://www.macports.org/>
Ports system for macOS