[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'
----------------------+---------------------------
  Reporter:  myon     |      Owner:  pramsey
      Type:  defect   |     Status:  closed
  Priority:  blocker  |  Milestone:  PostGIS 3.0.0
 Component:  postgis  |    Version:  trunk
Resolution:  invalid  |   Keywords:
----------------------+---------------------------
Changes (by myon):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 This turned out to be my fault. We had previously disabled PIE on Ubuntu
 because it caused trouble, but then I removed that logic, neglecting the
 fact that it's still necessary.

 https://salsa.debian.org/debian-gis-
 team/postgis/commit/50866f4d2d161515899ddf2e041dce3d52c03aba

 I put it back now for xenial; bionic seems fine.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4532#comment:6>
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