[postgis-tickets] [PostGIS] #2755: 4 regression failures for sfcgal

[PostGIS]

#2755: 4 regression failures for sfcgal
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  Reporter:  robe     |       Owner:  colivier     
      Type:  defect   |      Status:  reopened     
  Priority:  blocker  |   Milestone:  PostGIS 2.2.0
 Component:  sfcgal   |     Version:  trunk        
Resolution:           |    Keywords:               
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Comment(by pramsey):

 You can't just toss r12350, it's necessary to support extension upgrade,
 because during upgrade two libpostgis.so libraries are simultaneously
 loaded and they will collide on the GUC variable and upgrade will halt
 unless you check and avoid double-defining it.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2755#comment:6>
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