[postgis-tickets] [PostGIS] #4000: unpackaged--2.5.0dev upgrade test fails due to postgis.backend being redefined

[PostGIS]

#4000: unpackaged--2.5.0dev upgrade test fails due to postgis.backend being
redefined
----------------------+---------------------------
  Reporter:  strk     |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 2.5.0
 Component:  postgis  |    Version:  trunk
Resolution:           |   Keywords:
----------------------+---------------------------

Comment (by strk):

 I guess the problem is NOT cought by sfcgal/regress.sql snippet to find
 mixed probin because it's just the module path changing (from $libdir to
 00-regress etc):
 {{{
 SELECT distinct 'unexpected probin', proname || ':' || probin
 FROM pg_proc
 WHERE probin like '%postgis%'
   AND probin NOT LIKE '%' ||
     substring(postgis_lib_version() from '([0-9]*\.[0-9]*)')
     || '%'
 ORDER BY 2;
 }}}

 That test should be improved to make it clearer what the failure is

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4000#comment:1>
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