[MacPorts] #57237: Configuring rb-rcairo fails (on Mojave)

[MacPorts]

#57237: Configuring rb-rcairo fails (on Mojave)
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  Reporter:  jpmelko    |      Owner:  kimuraw
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:
      Port:  rb-rcairo  |
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Comment (by kimuraw):

 Thanks jpmelko,

 I added PKG_CONFIG_PATH into rb-rcairo to solve your error.
 Try `sudo port selfupdate && sudo port install rb-rcairo`.

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Ticket URL: <https://trac.macports.org/ticket/57237#comment:5>
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