[PostGIS] #5796: Build without pgxs

[PostGIS]

#5796: Build without pgxs
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  Reporter:  robe     |      Owner:  strk
      Type:  defect   |     Status:  new
  Priority:  blocker  |  Milestone:  PostGIS 3.7.0
 Component:  build    |    Version:  master
Resolution:           |   Keywords:
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Changes (by robe):

 * milestone:  PostGIS 3.6.0 => PostGIS 3.7.0

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5796#comment:1>
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