[MacPorts] #71509: dcm2niix: avoid cloning a duplicate of openjpeg during the build

[MacPorts]

#71509: dcm2niix: avoid cloning a duplicate of openjpeg during the build
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  Reporter:  barracuda156  |      Owner:  eborisch
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.10.5
Resolution:                |   Keywords:
      Port:  dcm2niix      |
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Comment (by barracuda156):

 Also a failure on buildbots:
 https://build.macports.org/builders/ports-10.8_x86_64-builder/builds/197103/steps
 /install-port/logs/stdio

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Ticket URL: <https://trac.macports.org/ticket/71509#comment:1>
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