[MacPorts] #50305: gtkglext @1.2.0 +quartz: error: X development libraries not found

[MacPorts]

#50305: gtkglext @1.2.0 +quartz: error: X development libraries not found
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  Reporter:  Polyergic  |      Owner:  (none)
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.3.4
Resolution:             |   Keywords:
      Port:  gtkglext   |
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Comment (by TheLastLovemark):

 I just experienced the same problem, with the same port and a similar
 variant.

 I tried a full install of +universal +quartz though.

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Ticket URL: <https://trac.macports.org/ticket/50305#comment:4>
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