[MacPorts] #49303: qt4-mac: Update to 4.8.7_2 Breaks CMake

[MacPorts]

#49303: qt4-mac: Update to 4.8.7_2 Breaks CMake
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  Reporter:  digitalriptide@…  |      Owner:  michaelld@…
      Type:  defect            |     Status:  new
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:  2.3.4
Resolution:                    |   Keywords:
      Port:  qt4-mac           |
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Comment (by nietzsche@…):

 The problem here is when using cmake outside of the scope of MacPorts so I
 suggest a fix for the 'FindQt4.cmake'-module.

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Ticket URL: <https://trac.macports.org/ticket/49303#comment:11>
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