[MacPorts] #61210: ftgl fails to link due to undefined symbols

[MacPorts]

#61210: ftgl fails to link due to undefined symbols
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  Reporter:  hellhovnd  |      Owner:  (none)
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.3
Resolution:             |   Keywords:  bigsur
      Port:  ftgl       |
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Comment (by chrstphrchvz):

 PR opened to manually append `-framework GLUT` to LDFLAGS, which I believe
 will work: https://github.com/macports/macports-ports/pull/9991

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Ticket URL: <https://trac.macports.org/ticket/61210#comment:14>
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