[gdal-dev] GDAL 2.5.0 beta1 available

[Even Rouault]

On vendredi 19 avril 2019 14:31:17 CEST Jim Klassen wrote:
> On 4/19/19 9:52 AM, Even Rouault wrote:
> > On vendredi 19 avril 2019 07:42:31 CEST Simon Eves wrote:
> >> Does this mean there won’t be a 2.4.2?
> > 
> > I'll issuing a few extra 2.4.x maintenance bugfix releases this year, but
> > this is a courtesy that will eventually stop.
> > 
> > People needing longer support, and potentially backport of features in the
> > 2.4 series, are free to contact their favorite service provider.
> > 
> > Even
> 
> Just curious, there seems to be an implicit assumption that proj4/5 and
> proj6 (or GDAL 2.4 and 2.5 for that matter) can't be installed side by
> side.  Why is that? Shouldn't they have different .so major versions? 

Most binary distributions only ship one version, for conveniency/reduced work 
load/etc., but yes you can use as many PROJ + GDAL versions in different 
locations of your system of course

What becomes messy is when you have quasi-diamond situations like :

A depends on B on C
B depends on PROJ < 6
C depends on PROJ >= 6

Things are bound to explode at runtime due to symbol clashes.
Except that for the sake of my own development needs I was in that situation 
so you can use that trick:
https://trac.osgeo.org/gdal/wiki/BuildingOnUnixGDAL25dev

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