[MacPorts] #48506: opencv @2.3.3 add +contrb variant for opencv_contrib repository

[MacPorts]

#48506: opencv @2.3.3 add +contrb variant for opencv_contrib repository
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  Reporter:  exb7900@…    |      Owner:  stromnov@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  opencv       |
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Comment (by crazyhorse671@…):

 I needed opencv_contrib as well. I adapted the Portfile a bit for that.
 Adapted Portfile and diff to current one are attached. Hope this is of any
 help...

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Ticket URL: <https://trac.macports.org/ticket/48506#comment:2>
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