[MacPorts] #62203: mesa @19.0.8: build fails on < 10.7 with glext.h:303:15: error: typedef redefinition with different types

[MacPorts]

#62203: mesa @19.0.8: build fails on < 10.7 with glext.h:303:15: error: typedef
redefinition with different types
---------------------+-------------------------
  Reporter:  kencu   |      Owner:  jeremyhu
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  snowleopard
      Port:  mesa    |
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Comment (by chrstphrchvz):

 I took a brief look, but didn't spot the cause. I think this could be
 stumbling onto old known issues between internal mesa and system header
 definitions, e.g. #42331,
 [https://bugs.freedesktop.org/show_bug.cgi?id=66346]. It looks like
 @jeremyhu had also already tried deliberately including things in a
 certain order upstream to avoid known (macOS-side) issues
 ([https://github.com/mesa3d/mesa/commit/a1cb3babbe]), but that something
 is not/no longer working as expected on 10.6. Though I wonder if I should
 instead be surprised that the failure isn't observed for 10.7 and later.

-- 
Ticket URL: <https://trac.macports.org/ticket/62203#comment:17>
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