[gdal-dev] Best way to package and distribute GDAL data files

[Emmanuel d'Angelo]

Thanks Ari for the interest!

Unfortunately, my target is to ship for all 3 major OSes (linux, windows, macOS).
Regarding my build system, everything is glued by cmake. Not sure if it's related, but I build (for now) GDAL as a dynamic lib and PROJ4 as a static one. Any change here is possible if it helps with the issue. 

Emmanuel 

> Le 14 févr. 2017 à 15:52, Ari Jolma <ari.jolma at gmail.com> a écrit :
> 
> Emmanuel,
> 
> I think we need to know the OS you're using.
> 
> Ari
> 
> 14.02.2017, 16:48, Emmanuel d'Angelo kirjoitti:
>> Dear list,
>> 
>> I'm trying to package and distribute an application that relies internally on GDAL for some raster / vector manipulation. 
>> 
>> It may happen in some cases that a user of the application wants to take her outputs to a different coordinate system (typically from some national system to WGS84). As far as I can see, some of these transformations rely on the content of GDAL data files (such as pcs.csv or datum.csv).
>> 
>> I can install these files locally and use the GDAL_DATA environment variable to find them from my application. However, on the user side, what's the recommended practice? 
>> Do I need to ensure that my users have a GDAL_DATA variable set too with the correct data files? I've looked at the build system files, but I couldn't find a way to set this path relative to my application (which would let me install these files inside the app package and distribute them with the application).
>> 
>> Any hint to put me on the right track would be greatly appreciated.
>> 
>> Best regards,
>> 
>> Emmanuel
>> 
>> 
>> 
>> 
>> 
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>> 
>> 
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