[postgis-tickets] [PostGIS] #4532: 3.0.0rc1 build failure on Ubuntu xenial: gserialized_estimate.o: undefined reference to symbol 'roundf@@GLIBC_2.2.5'

[PostGIS]

#4532: 3.0.0rc1 build failure on Ubuntu xenial: gserialized_estimate.o: undefined
reference to symbol 'roundf@@GLIBC_2.2.5'
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  Reporter:  myon     |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  blocker  |  Milestone:  PostGIS 3.0.0
 Component:  postgis  |    Version:  trunk
Resolution:           |   Keywords:
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Comment (by Algunenano):

 The issue goes again once I remove the `-pie` flag. I'm not sure why it's
 there since it is used to produce executables, so I'm investigating where
 it comes from and what can we do to suppress it.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4532#comment:5>
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