[MacPorts] #32109: Fix LyX to build with clang (was: LyX: error: implicit instantiation of undefined template)

[MacPorts]

#32109: Fix LyX to build with clang
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  Reporter:  alfredherrmann@…        |       Owner:  snc@…           
      Type:  defect                  |      Status:  reopened        
  Priority:  Normal                  |   Milestone:                  
 Component:  ports                   |     Version:                  
Resolution:                          |    Keywords:                  
      Port:  LyX                     |  
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Ticket URL: <https://trac.macports.org/ticket/32109#comment:7>
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