chore: Adjust packaging, linux aot copy

.github/workflows/runtime-ci.yml

@@ -178,13 +178,16 @@ jobs:
       run: |
         set -e
         cd runtime
-        ./build.sh -arch wasm -os browser -c $BUILD_CONFIGURATION $ADDITIONAL_BUILD_ARGS /p:TestAssemblies=false
+        ./build.sh -arch wasm -os browser -c $BUILD_CONFIGURATION $ADDITIONAL_BUILD_ARGS "/p:MonoWasmBuildVariant=singlethread" /p:TestAssemblies=false
 
     - name: Create NuGet Package
       run: |
         mkdir -p $GITHUB_WORKSPACE/nuget/tools
         mkdir -p $GITHUB_WORKSPACE/ci-output
 
+        # Mark AOT generation binaries executable
+        chmod +x $GITHUB_WORKSPACE/runtime/artifacts/bin/mono/browser.wasm.Release/cross/*
+
         # Move cross compiler to appropriate location 
         mv $GITHUB_WORKSPACE/runtime/artifacts/bin/mono/Browser.wasm.Release/cross $GITHUB_WORKSPACE/nuget/tools
 

nuget/Uno.NETCore.App.Runtime.Mono.browser-wasm.csproj

@@ -15,6 +15,9 @@
 	<ItemGroup>
 		<None Include="sdk-multithread/**" Pack="true" PackagePath="data/multithread" />
 		<None Include="sdk-singlethread/**" Pack="true" PackagePath="data/singlethread  " />
+
+		<!-- This is required to get the automatic GeneratePathProperty -->
+		<None Include="_._" Pack="true" PackagePath="tools" />
 	</ItemGroup>
 
 	<Target Name="DownloadAndSetPackageIcon" BeforeTargets="_GetPackageFiles">