cppOSGeo/gdal #14872Not a task: not reproduced

C# CMake build generates win-x64 RuntimeIdentifier for Visual Studio Win32 builds

envgap__OSGeo__gdal-14872

Original GitHub issue ↗Dated source checkout ↗Opened 2026-06-27

01 / FAILURE SIGNATURE

As reported upstream

`error NETSDK1032: The RuntimeIdentifier platform 'win-x64' and the PlatformTarget 'x86' must be compatible.`

Not a benchmark task.

In a clean container the reported failure did not reproduce, or the known fix did not make the project run.

02 / ENVIRONMENT RECIPE

Base commit: 42f1aa59031ea95800d4805e268b3cf70f9def20
Manifest: swig/csharp/CMakeLists.txt
Reproduce: Awaiting issue-specific recipe
Run under trace: Awaiting a meaningful runtime command

03 / ORIGINAL ISSUE TEXT

OSGeo/gdal #14872 · read the original issue

### What is the bug?

After the RFC112 C# binding CMake rewrite, GDAL derives CSHARP_RID from CMAKE_SYSTEM_PROCESSOR. On Windows Visual Studio generators this can describe the host CPU, not the target platform.

The corresponding failure is:

`error NETSDK1032: The RuntimeIdentifier platform 'win-x64' and the PlatformTarget 'x86' must be compatible.`

### Steps to reproduce the issue

1. Configure GDAL master on a 64-bit Windows host with Visual Studio 2022 targeting Win32/x86.
2. Enable C# bindings.
3. Build the install target.

```
cmake .. -G "Visual Studio 17 2022" -A Win32 -DBUILD_CSHARP_BINDINGS=ON
cmake --build . --config Release --target install
```

### Versions and provenance

Observed in GDAL master after:
71c45339ba4c9ba9d1a520a4aa0c55c0f2d1fd04 implement rfc-112

Last known working revision in the GISInternals daily x86 build:
ccc9feb81fb119ca0b890ac03968eb2f9978b8ca

Environment:
Windows
Visual Studio 2022
NMake/MSBuild toolset 14.44.35222.0
.NET SDK 9.0.309
CMake generator platform: Win32

### Additional context

_No response_

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