[gdal-dev] Improving details of the project build system and/or documentation

[Even Rouault]

Hi Sean,

I presume you got this because you defined 
OGR_BUILD_OPTIONAL_DRIVERS=OFF which then cause OGR_ENABLE_DRIVER_AVC to 
be set to OFF.

We already a quite overwhelming amount of documentation in 
https://gdal.org/development/building_from_source.html about all the 
existing variables, and I'm not sure adding an exhaustive list of all 
the inter driver dependencies will be user-digestable and could rot easily.

That said in https://github.com/OSGeo/gdal/pull/7806 I've tried to 
improve the current error message with a hint for the reason for the 
error and the (likely) reason for it to happen.

I've also added pointers in the doc page to the CMakeLists.txt files 
where the dependencies are expressed. Hopefully people who are in the 
business of making custom GDAL builds can make sense of that.

Even

Le 20/05/2023 à 01:26, Sean Gillies a écrit :
> Hi all,
>
> I really appreciate the documentation at 
> https://gdal.org/development/building_from_source.html. But there are 
> gaps. For example, today I ran into
>
> CMake Error at cmake/helpers/GdalDriverHelper.cmake:331 (message):
> GDAL_ENABLE_DRIVER_AIGRID cannot be enabled because condition
> OGR_ENABLE_DRIVER_AVC is not met. To ignore this error (but the driver
> will not be built), set the GDAL_IGNORE_FAILED_CONDITIONS variable
>
> This dependence isn't documented. It's a bit frustrating to work 
> through missing directives one at a time when adding new drivers to my 
> build.
>
> Is it possible for a driver's dependencies to be enabled when I enable 
> a driver?
>
> If not, can we consider using GDAL maintenance funding and resources 
> on documenting the heck out of this system?
>
> -- 
> Sean Gillies
>
> _______________________________________________
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
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-- 
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