[MacPorts] #57756: mathgl: fatal error: 'Fl/Fl_RGB_Image.H' file not found

[MacPorts]

#57756: mathgl: fatal error: 'Fl/Fl_RGB_Image.H' file not found
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  Reporter:  ryandesign  |      Owner:  Schamschula
      Type:  defect      |     Status:  closed
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:  fixed       |   Keywords:
      Port:  mathgl      |
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Comment (by Schamschula):

 Thanks for reporting this issue upstream! I had meant to get around to
 doing so myself.

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Ticket URL: <https://trac.macports.org/ticket/57756#comment:3>
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