[MacPorts] #56430: libpcl fails to build

[MacPorts]

#56430: libpcl fails to build
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  Reporter:  dershow  |      Owner:  luminans@…
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  libpcl   |
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Comment (by ctreleaven):

 See attached patch.  Updates libpcl to 1.8.1, now depends on vtk rather
 than elderly vtk5, adds default variant to build with clang-5.0 to enable
 OpenMP.  Also enables unit tests although not all test pass on my system.
 Note that tests have to be run 'sudo port test libpcl +test'.

 Should solved all other remaining libpcl tickets:
 https://trac.macports.org/ticket/40760
 https://trac.macports.org/ticket/48251
 https://trac.macports.org/ticket/55022

 Also addresses 56422 by moving to cmake 1.1 portgroup.

 Beware, takes a LONG time to build.

 @Veence, let me know if you approve and I can commit this.

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Ticket URL: <https://trac.macports.org/ticket/56430#comment:5>
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