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Update C# Runtime dependencies to support NativeAOT-LLVM prerequisites #4601

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Update C# Runtime dependencies to support NativeAOT-LLVM prerequisites #4601

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a8dac84
Forcing LLVM packages to always be available as it seems dotnet resto…
JasonAtClockwork Mar 5, 2026
adbcada
Updating nuget config writer script with `NativeAOT-LLM` support
rekhoff Mar 6, 2026
d5ef9fb
Created conditional for `EXPERIMENTAL_WASM_AOT` specific packages in …
rekhoff Mar 10, 2026
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8 changes: 8 additions & 0 deletions crates/bindings-csharp/Runtime/Runtime.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<RootNamespace>SpacetimeDB</RootNamespace>
<EmitCompilerGeneratedFiles>true</EmitCompilerGeneratedFiles>
<RestoreAdditionalProjectSources Condition="'$(EXPERIMENTAL_WASM_AOT)' == '1'">https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-experimental/nuget/v3/index.json;$(RestoreAdditionalProjectSources)</RestoreAdditionalProjectSources>
</PropertyGroup>

<ItemGroup>
Expand All @@ -25,6 +26,13 @@
<ProjectReference Include="../Codegen/Codegen.csproj" ReferenceOutputAssembly="false" />
</ItemGroup>

<!-- These must be explicit package dependencies so NuGet consumers can resolve the LLVM toolchain. -->
<ItemGroup Condition="'$(EXPERIMENTAL_WASM_AOT)' == '1'">
<PackageReference Include="Microsoft.DotNet.ILCompiler.LLVM" Version="8.0.0-*" IncludeAssets="All" />
<PackageReference Include="runtime.$(NETCoreSdkPortableRuntimeIdentifier).Microsoft.DotNet.ILCompiler.LLVM" Version="8.0.0-*" IncludeAssets="All" />
<PackageReference Include="Microsoft.NET.ILLink.Tasks" Version="8.0.0-*" Condition="'$(ILLinkTargetsPath)' == ''" IncludeAssets="All" />
</ItemGroup>

<ItemGroup>
<None Include="README.md" Pack="true" PackagePath="" />
<None Include="build/*" Pack="true" PackagePath="build" />
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8 changes: 4 additions & 4 deletions crates/bindings-csharp/Runtime/build/SpacetimeDB.Runtime.targets
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Original file line number Diff line number Diff line change
@@ -1,5 +1,9 @@
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

<Import
Project="$(PkgMicrosoft_DotNet_ILCompiler_LLVM)\build\Microsoft.DotNet.ILCompiler.LLVM.targets"
Condition="'$(EXPERIMENTAL_WASM_AOT)' == '1' and '$(ILCompilerTargetsPath)' == '' and '$(PkgMicrosoft_DotNet_ILCompiler_LLVM)' != '' and Exists('$(PkgMicrosoft_DotNet_ILCompiler_LLVM)\build\Microsoft.DotNet.ILCompiler.LLVM.targets')" />

<ItemGroup Condition="'$(EXPERIMENTAL_WASM_AOT)' == '1'">
<NativeLibrary Include="$(MSBuildThisFileDirectory)..\bindings.c" />
<UnmanagedEntryPointsAssembly Include="SpacetimeDB.Runtime" />
Expand Down Expand Up @@ -42,10 +46,6 @@
<WasmImport Include="spacetime_10.4!datastore_index_scan_point_bsatn" />
<WasmImport Include="spacetime_10.4!datastore_delete_by_index_scan_point_bsatn" />

<PackageReference Include="Microsoft.DotNet.ILCompiler.LLVM" Version="8.0.0-*" />
<PackageReference Include="runtime.$(NETCoreSdkPortableRuntimeIdentifier).Microsoft.DotNet.ILCompiler.LLVM" Version="8.0.0-*" />
<PackageReference Include="Microsoft.NET.ILLink.Tasks" Version="8.0.0-*" Condition="'$(ILLinkTargetsPath)' == ''" />

<CustomLinkerArg Include="-DEXPERIMENTAL_WASM_AOT" />
</ItemGroup>

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14 changes: 14 additions & 0 deletions sdks/csharp/tools~/write-nuget-config.sh
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Expand Up @@ -15,6 +15,8 @@ cat >NuGet.Config <<EOF
<configuration>
<packageSources>
<clear />
<!-- Experimental NuGet feed for Microsoft.DotNet.ILCompiler.LLVM packages -->
<add key="dotnet-experimental" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-experimental/nuget/v3/index.json" />
<!-- Local NuGet repositories -->
<add key="Local SpacetimeDB.BSATN.Runtime" value="${SPACETIMEDB_REPO_PATH}/crates/bindings-csharp/BSATN.Runtime/bin/Release" />
<!-- We need to override the module runtime as well because the examples use it -->
Expand All @@ -30,6 +32,11 @@ cat >NuGet.Config <<EOF
<packageSource key="Local SpacetimeDB.Runtime">
<package pattern="SpacetimeDB.Runtime" />
</packageSource>
<!-- Experimental packages for NativeAOT-LLVM compilation -->
<packageSource key="dotnet-experimental">
<package pattern="Microsoft.DotNet.ILCompiler.LLVM" />
<package pattern="runtime.*" />
</packageSource>
<!-- Fallback for other packages (e.g. test deps). -->
<packageSource key="nuget.org">
<package pattern="*" />
Expand All @@ -43,6 +50,8 @@ cat >"${SPACETIMEDB_REPO_PATH}/NuGet.Config" <<EOF
<configuration>
<packageSources>
<clear />
<!-- Experimental NuGet feed for Microsoft.DotNet.ILCompiler.LLVM packages -->
<add key="dotnet-experimental" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-experimental/nuget/v3/index.json" />
<!-- Local NuGet repositories -->
<add key="Local SpacetimeDB.BSATN.Runtime" value="crates/bindings-csharp/BSATN.Runtime/bin/Release" />
<!-- We need to override the module runtime as well because the examples use it -->
Expand All @@ -58,6 +67,11 @@ cat >"${SPACETIMEDB_REPO_PATH}/NuGet.Config" <<EOF
<packageSource key="Local SpacetimeDB.Runtime">
<package pattern="SpacetimeDB.Runtime" />
</packageSource>
<!-- Experimental packages for NativeAOT-LLVM compilation -->
<packageSource key="dotnet-experimental">
<package pattern="Microsoft.DotNet.ILCompiler.LLVM" />
<package pattern="runtime.*" />
</packageSource>
<!-- Fallback for other packages (e.g. test deps). -->
<packageSource key="nuget.org">
<package pattern="*" />
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