[gdal-dev] Build of gdal fails on missing OSGeo.GDAL.Core

[Rob Stevens]

I am very new to building out GIS tools on the MacOS platform,
so I apologize for my rather turgid description below.

I am trying to build gdal 3.6.0 (git cloned)
on macos catalina 10.15.7 on a macbook pro 2017
On this machine I have various versions of Msoft dotnet core sdks installed
(7.0.100, 6.0.403, 6.0.401, 2.1.500)
All goes well until the build gets 88% done.
Then I see:

======= Building .NET project OSGeo.OSR [Release ]
   Determining projects to restore...
/usr/local/share/dotnet/sdk/7.0.100/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.EolTargetFrameworks.targets(28,5): 
warning NETSDK1138: The target framework 'net5.0' is out of support and 
will not receive security updates in the future. Please refer to 
https://aka.ms/dotnet-core-support for more information about the 
support policy. 
[/Users/rob/tmp/git_checkouts/gdal/build/swig/csharp/osr/osr_csharp.csproj]
   Writing /var/folders/15/nt94jgd930z_z6zr5gc081y00000gr/T/tmpUJ1Fvw.tmp
info : X.509 certificate chain validation will use the fallback 
certificate bundle at 
'/usr/local/share/dotnet/sdk/7.0.100/trustedroots/codesignctl.pem'.
info : X.509 certificate chain validation will use the fallback 
certificate bundle at 
'/usr/local/share/dotnet/sdk/7.0.100/trustedroots/timestampctl.pem'.
info : Restoring packages for 
/Users/rob/tmp/git_checkouts/gdal/build/swig/csharp/osr/osr_csharp.csproj...
info :   GET 
https://api.nuget.org/v3-flatcontainer/osgeo.gdal.core/index.json
info :   NotFound 
https://api.nuget.org/v3-flatcontainer/osgeo.gdal.core/index.json 1316ms
error: NU1101: Unable to find package OSGeo.GDAL.Core. No packages exist 
with this id in source(s): nuget.org
error: Package 'OSGeo.GDAL.Core' is incompatible with 'all' frameworks 
in project 
'/Users/rob/tmp/git_checkouts/gdal/build/swig/csharp/osr/osr_csharp.csproj'

It is not my intent to build any dotnet components/interfaces
but the cmake build seems to want to do this just by virtue
of my having dotnet SDKs installed. The cmake build files
are very difficult to understand, and I have not yet been
able to figure out how to prevent these unneeded
components being built.

1. How do I prevent these dotnet components being built?
2. It seems as though I am trying to build against all versions of the 
dotnet
     SDK installed, but some of those versions do not have nuget packages
     for OSGeo.GDal.Core.
     Regardless of my needs, is this not a larger problem in the build?

Thanks for any help.

Rob Stevens