[postgis-devel] [PostGIS] #1541: Stop relying on private projects.h PROJ header

[PostGIS]

#1541: Stop relying on private projects.h PROJ header
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 Reporter:  strk                   |       Owner:  strk         
     Type:  defect                 |      Status:  new          
 Priority:  high                   |   Milestone:  PostGIS 2.0.0
Component:  build/upgrade/install  |     Version:  trunk        
 Keywords:                         |  
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Comment(by pramsey):

 OK, so here's my proposed solution:
 For the upcoming proj 4.8, which I will cross my fingers and hope for a
 legal spheroid accessor API, we'll do full SRID support as currently
 implemented, but using a public API.
 For earlier proj releases, which do not have a public API, we have two
 choices:
 (a) continue to use the private projects.h header and reading out of the
 PJ struct for spheroid information.
 (b) continue to accept SRIDs other than 4326, using the pj_is_latlon
 method to test that they are geographic systems, but we will fill in the
 spheroid using the WGS84 parameters, while issuing a notice warning of
 what we're doing, and only use the public proj_api.h.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1541#comment:6>
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