Rework the native library usage so that a pre-built ORT native package can be easily used

csharp/OnnxRuntime.CSharp.proj

@@ -64,13 +64,6 @@ CMake creates a target to this project
     <Error Text="Building via this file is not supported. Please build using the appropriate .sln file in this directory." />
   </Target>
 
-  <Target Name="RunTest">
-    <Message Importance="High" Text="Running CSharp tests..." />
-    <Exec Command="$(DotNetExe) test test\Microsoft.ML.OnnxRuntime.Tests\Microsoft.ML.OnnxRuntime.Tests.csproj -c $(Configuration) --no-build --blame -v n" ConsoleToMSBuild="true">
-      <Output TaskParameter="ConsoleOutput" PropertyName="OutputOfExec" />
-    </Exec>
-  </Target>
-
    <Target Name="ObtainPackageVersion" BeforeTargets="Build;CreatePackage;CreateWindowsAIPackage;CreateNativePackage">
     <ReadLinesFromFile File="..\VERSION_NUMBER">
       <Output TaskParameter="Lines" ItemName="MajorVersionNumber"/>
@@ -153,7 +146,7 @@ CMake creates a target to this project
     <!-- Create Microsoft.ML.OnnxRuntime.Managed with the C# bindings using the C# project -->
     <Message Condition="'$(IsPlatformSpecificSubPackage)'!='True'" Importance="High" Text="Creating Microsoft.ML.OnnxRuntime.Managed nuget package..." />
     <MSBuild Condition="'$(IsPlatformSpecificSubPackage)'!='True'" Projects="src\Microsoft.ML.OnnxRuntime\Microsoft.ML.OnnxRuntime.csproj"
-             Targets="CopyMiscFiles;Pack"
+             Targets="RenameFilesToPack;Pack"
              Properties="NoBuild=true;Platform=AnyCPU;PackageVersion=$(PackageVersion);OrtPackageId=$(OrtPackageId);IncludeMobileTargets=$(IncludeMobileTargets)"/>
 
     <MSBuild Projects ="$(MSBuildProjectFullPath)"

csharp/test/Microsoft.ML.OnnxRuntime.Tests.Common/Microsoft.ML.OnnxRuntime.Tests.Common.csproj

@@ -1,16 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <IsWindowsBuild Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))' == 'true'">true</IsWindowsBuild>
+    <IsLinuxBuild Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Linux)))' == 'true'">true</IsLinuxBuild>
+    <IsMacOSBuild Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::OSX)))' == 'true'">true</IsMacOSBuild>
+
+    <OnnxRuntimeRoot>$(ProjectDir)..\..\..</OnnxRuntimeRoot>
+  </PropertyGroup>
 
   <PropertyGroup>
     <!-- netstandard2.0 is used by most platforms. net8.0 is required for linux. -->
     <TargetFrameworks>netstandard2.0;net8.0</TargetFrameworks>
     <IsPackable>false</IsPackable>
-    <OnnxRuntimeCsharpRoot>$(ProjectDir)..\..</OnnxRuntimeCsharpRoot>
     <Platforms>AnyCPU</Platforms>
     <OutputPath>bin\$(Configuration)\</OutputPath>
-    <IsLinuxBuild Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Linux)))' == 'true'">true</IsLinuxBuild>
-    <IsWindowsBuild Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))' == 'true'">true</IsWindowsBuild>
-    <IsMacOSBuild Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::OSX)))' == 'true'">true</IsMacOSBuild>
-    <ProtoSrc>$(OnnxRuntimeCsharpRoot)\..\cmake\external\onnx</ProtoSrc>
+    <ProtoSrc>$(OnnxRuntimeRoot)\cmake\external\onnx</ProtoSrc>
 
     <!-- Generated OnnxML.cs triggers this warning. -->
     <NoWarn>8981</NoWarn>
@@ -22,30 +25,22 @@
     <AssemblyOriginatorKeyFile>..\..\OnnxRuntime.snk</AssemblyOriginatorKeyFile>
     <Configurations>Debug;Release;RelWithDebInfo</Configurations>
     <!-- end -->
+
     <RootNamespace>Microsoft.ML.OnnxRuntime.Tests</RootNamespace>
     <AssemblyName>Microsoft.ML.OnnxRuntime.Tests.Common</AssemblyName>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(IsLinuxBuild)'=='true'">
-    <!--internal build related properties for Linux -->
-    <OnnxRuntimeBuildDirectory Condition="'$(OnnxRuntimeBuildDirectory)'==''">$(OnnxRuntimeCsharpRoot)\..\build\Linux</OnnxRuntimeBuildDirectory>
-    <NativeBuildOutputDir>$(OnnxRuntimeBuildDirectory)\$(Configuration)</NativeBuildOutputDir>
-    <ProtocDirectory Condition="'$(ProtocDirectory)'==''">$(OnnxRuntimeBuildDirectory)\$(Configuration)\external\protobuf\cmake</ProtocDirectory>
-    <ProtocExe>$(ProtocDirectory)\protoc</ProtocExe>
-  </PropertyGroup>
-
   <PropertyGroup Condition="'$(IsWindowsBuild)'=='true'">
-    <!--internal build related properties for Windows -->
-    <OnnxRuntimeBuildDirectory Condition="'$(OnnxRuntimeBuildDirectory)'==''">$(OnnxRuntimeCsharpRoot)\..\build\Windows</OnnxRuntimeBuildDirectory>
-    <NativeBuildOutputDir>$(OnnxRuntimeBuildDirectory)\$(Configuration)\$(Configuration)</NativeBuildOutputDir>
     <ProtocDirectory Condition="'$(ProtocDirectory)'==''">$(OnnxRuntimeBuildDirectory)\$(Configuration)\external\protobuf\cmake\$(Configuration)</ProtocDirectory>
     <ProtocExe>$(ProtocDirectory)\protoc.exe</ProtocExe>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(IsLinuxBuild)'=='true'">
+    <ProtocDirectory Condition="'$(ProtocDirectory)'==''">$(OnnxRuntimeBuildDirectory)\$(Configuration)\external\protobuf\cmake</ProtocDirectory>
+    <ProtocExe>$(ProtocDirectory)\protoc</ProtocExe>
+  </PropertyGroup>
+
   <PropertyGroup Condition="'$(IsMacOSBuild)'=='true'">
-    <!--internal build related properties for OSX -->
-    <OnnxRuntimeBuildDirectory Condition="'$(OnnxRuntimeBuildDirectory)'==''">$(OnnxRuntimeCsharpRoot)\..\build\MacOS</OnnxRuntimeBuildDirectory>
-    <NativeBuildOutputDir>$(OnnxRuntimeBuildDirectory)\$(Configuration)</NativeBuildOutputDir>
     <ProtocDirectory Condition="'$(ProtocDirectory)'==''">$(OnnxRuntimeBuildDirectory)\$(Configuration)\external\protobuf\cmake</ProtocDirectory>
     <ProtocExe>$(ProtocDirectory)\protoc</ProtocExe>
   </PropertyGroup>
@@ -102,28 +97,6 @@
     </None>
   </ItemGroup>
 
-  <!--
-  Microsoft.ML.OnnxRuntime.Tests.MAUI.csproj handles the native lib coming from a local build or a nuget package so we
-  don't need to duplicate that logic to include the native lib here.
-  -->
-  <ItemGroup Condition="$(SkipNativeLibInclude) != 'true'">
-    <None Condition="'$(IsWindowsBuild)'=='true'"
-          Include="$(NativeBuildOutputDir)\onnxruntime.dll;$(NativeBuildOutputDir)\onnxruntime.pdb">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-      <Visible>false</Visible>
-    </None>
-
-    <None Condition="'$(IsLinuxBuild)'=='true'" Include="$(NativeBuildOutputDir)\libonnxruntime.so">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-      <Visible>false</Visible>
-    </None>
-
-    <None Condition="'$(IsMacOSBuild)'=='true'" Include="$(NativeBuildOutputDir)\libonnxruntime.dylib">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-      <Visible>false</Visible>
-    </None>
-  </ItemGroup>
-
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
     <PackageReference Include="Google.Protobuf" Version="3.21.12" />
@@ -132,16 +105,20 @@
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="$(OnnxRuntimeCsharpRoot)\src\Microsoft.ML.OnnxRuntime\Microsoft.ML.OnnxRuntime.csproj" />
+    <ProjectReference Include="$(OnnxRuntimeRoot)\csharp\src\Microsoft.ML.OnnxRuntime\Microsoft.ML.OnnxRuntime.csproj" />
   </ItemGroup>
 
   <!-- generate OnnxMl.cs from ONNX protobuf definition -->
   <Target Name="ProtoGen" BeforeTargets="BeforeBuild" Condition="Exists('$(ProtocExe)')">
-    <Exec Command="$(ProtocExe) -I=$(ProtoSrc) --csharp_out=. $(ProtoSrc)\onnx\onnx-ml.proto3" ContinueOnError="false"></Exec>
+    <Exec Command="$(ProtocExe) -I=$(ProtoSrc) --csharp_out=. $(ProtoSrc)\onnx\onnx-ml.proto3"
+        ContinueOnError="false">
+    </Exec>
   </Target>
 
   <Target Name="ProtoDataGen" BeforeTargets="BeforeBuild" Condition="Exists('$(ProtocExe)')">
-    <Exec Command="$(ProtocExe) -I=$(ProtoSrc) --csharp_out=. $(ProtoSrc)\onnx\onnx-data.proto3" ContinueOnError="false"></Exec>
+    <Exec Command="$(ProtocExe) -I=$(ProtoSrc) --csharp_out=. $(ProtoSrc)\onnx\onnx-data.proto3"
+        ContinueOnError="false">
+    </Exec>
   </Target>
 
   <ItemGroup>
@@ -152,20 +129,20 @@
     <WriteLinesToFile File="$(OutputPath)\Properties.txt" Lines="@(BuildEnvVars)" Overwrite="true" />
   </Target>
 
+  <!-- Test Data that is used in MAUI and NetCore test app. Loaded via embedded resource for that to be possible -->
   <ItemGroup>
     <EmbeddedResource Include="..\..\testdata\*">
-        <Link>TestData\%(Filename)%(Extension)</Link>
+      <Link>TestData\%(Filename)%(Extension)</Link>
     </EmbeddedResource>
-    <EmbeddedResource Include="$(OnnxRuntimeCSharpRoot)\..\onnxruntime\test\testdata\overridable_initializer.onnx">
-        <Link>TestData\overridable_initializer.onnx</Link>
+    <EmbeddedResource Include="$(OnnxRuntimeRoot)\onnxruntime\test\testdata\overridable_initializer.onnx">
+      <Link>TestData\overridable_initializer.onnx</Link>
     </EmbeddedResource>
-    <EmbeddedResource Include="$(OnnxRuntimeCSharpRoot)\..\onnxruntime\test\testdata\capi_symbolic_dims.onnx">
-        <Link>TestData\capi_symbolic_dims.onnx</Link>
+    <EmbeddedResource Include="$(OnnxRuntimeRoot)\onnxruntime\test\testdata\capi_symbolic_dims.onnx">
+      <Link>TestData\capi_symbolic_dims.onnx</Link>
     </EmbeddedResource>
   </ItemGroup>
 
   <ItemGroup>
     <Service Include="{508349b6-6b84-4df5-91f0-309beebad82d}" />
   </ItemGroup>
-
 </Project>

csharp/test/Microsoft.ML.OnnxRuntime.Tests.Common/NativeLibraryInclude.props

@@ -0,0 +1,171 @@
+<!--
+Add the native libraries from either a local build or a prebuilt native nuget package.
+
+This has to be imported by the test project with the actual target platform/frameworks to work correctly as the common
+test project only targets net8 and netstandard2.0.
+-->
+<Project>
+    <PropertyGroup>
+        <!-- build host system -->
+        <IsWindowsBuild Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Windows)))' == 'true'">true</IsWindowsBuild>
+        <IsLinuxBuild Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::Linux)))' == 'true'">true</IsLinuxBuild>
+        <IsMacOSBuild Condition="'$([System.Runtime.InteropServices.RuntimeInformation]::IsOSPlatform($([System.Runtime.InteropServices.OSPlatform]::OSX)))' == 'true'">true</IsMacOSBuild>
+
+        <!-- set for MAUI targets -->
+        <IsWindowsTarget Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">true</IsWindowsTarget>
+        <IsAndroidTarget Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">true</IsAndroidTarget>
+        <IsIOSTarget Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">true</IsIOSTarget>
+        <IsMacCatalystTarget Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">true</IsMacCatalystTarget>
+
+        <!--
+        Allow a pre-built ORT native nuget package (Microsoft.ML.OnnxRuntime.<version>.nupkg) to be used.
+
+        The test projects that include this file must be built from the command-line to enable using a prebuilt package.
+        Current test projects:
+            - Microsoft.ML.OnnxRuntime.Tests.NetCoreApp
+            - Microsoft.ML.OnnxRuntime.Tests.MAUI
+
+        If running from the repo root the below is an example command.
+            Note that '==' represents a double '-' which isn't allowed in an XML comment
+            Properties can also be set via environment variables.
+
+        dotnet build csharp\test\Microsoft.ML.OnnxRuntime.Tests.MAUI\Microsoft.ML.OnnxRuntime.Tests.MAUI.csproj
+            ==property:UsePrebuiltNativePackage=true
+            ==property:CurrentOnnxRuntimeVersion=1.19.2
+            ==source <path containing the Microsoft.ML.OnnxRuntime.<version>.nupkg>
+            ==source https://api.nuget.org/v3/index.json
+
+        The <version> of the nupkg must match the value provided in CurrentOnnxRuntimeVersion.
+
+        The "==source" args are not required if a released Microsoft.ML.OnnxRuntime package is being used.
+        If using a previous release you must ensure it is compatible with the entries in NativeMethods.shared.cs.
+        If new bindings have been added recently you will get error when those are initialized if the native code is out
+        of date and does not match.
+        -->
+        <UsePrebuiltNativePackage Condition="'$(UsePrebuiltNativePackage)' == ''">false</UsePrebuiltNativePackage>
+        <CurrentOnnxRuntimeVersion Condition="'$(CurrentOnnxRuntimeVersion)' == ''">1.20.0-dev-20241007</CurrentOnnxRuntimeVersion>
+    </PropertyGroup>
+
+    <!-- debug output - makes finding/fixing any issues with the the conditions easy.  -->
+    <Target Name="DumpValues" BeforeTargets="PreBuildEvent">
+        <Message Text="NativeLibraryInclude: TargetPlatform='$(TargetPlatform)' TargetPlatformIdentifier='$(TargetPlatformIdentifier)' " />
+        <Message Text="TargetFramework='$(TargetFramework)' TargetFrameworkIdentifier='$(TargetFrameworkIdentifier)' " />
+        <Message Text="[MSBuild]::GetTargetPlatformIdentifier(TargetFramework)='$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))' " />
+        <Message Text="[MSBuild]::GetTargetFrameworkIdentifier(TargetFramework)='$([MSBuild]::GetTargetFrameworkIdentifier('$(TargetFramework)'))' " />
+        <Message Text="IsWindowsBuild='$(IsWindowsBuild)' IsLinuxBuild='$(IsLinuxBuild)' IsMacOSBuild='$(IsMacOSBuild)'" />
+        <Message Text="IsWindowsTarget='$(IsWindowsTarget)' IsAndroidTarget='$(IsAndroidTarget)' IsIOSTarget='$(IsIOSTarget)' IsMacCatalystTarget='$(IsMacCatalystTarget)'" />
+    </Target>
+
+    <ItemGroup Condition="'$(UsePrebuiltNativePackage)' == 'true'">
+        <!-- Use the prebuilt package -->
+        <PackageReference Include="Microsoft.ML.OnnxRuntime" Version="$(CurrentOnnxRuntimeVersion)" />
+    </ItemGroup>
+
+    <!-- 'Choose' so we don't need the UsePrebuiltNativePackage condition on all the PropertyGroup/ItemGroup elements -->
+    <Choose>
+        <When Condition="'$(UsePrebuiltNativePackage)' != 'true'">
+            <PropertyGroup Condition="'$(IsWindowsBuild)'=='true' OR '$(IsWindowsTarget)'=='true'">
+                <OnnxRuntimeBuildDirectory Condition="'$(OnnxRuntimeBuildDirectory)'==''">$(OnnxRuntimeRoot)\build\Windows</OnnxRuntimeBuildDirectory>
+                <NativeBuildOutputDir>$(OnnxRuntimeBuildDirectory)\$(Configuration)\$(Configuration)</NativeBuildOutputDir>
+            </PropertyGroup>
+
+            <PropertyGroup Condition="'$(IsLinuxBuild)'=='true'">
+                <OnnxRuntimeBuildDirectory Condition="'$(OnnxRuntimeBuildDirectory)'==''">$(OnnxRuntimeRoot)\build\Linux</OnnxRuntimeBuildDirectory>
+                <NativeBuildOutputDir>$(OnnxRuntimeBuildDirectory)\$(Configuration)</NativeBuildOutputDir>
+            </PropertyGroup>
+
+            <PropertyGroup Condition="'$(IsMacOSBuild)'=='true'">
+                <OnnxRuntimeBuildDirectory Condition="'$(OnnxRuntimeBuildDirectory)'==''">$(OnnxRuntimeRoot)\build\MacOS</OnnxRuntimeBuildDirectory>
+                <NativeBuildOutputDir>$(OnnxRuntimeBuildDirectory)\$(Configuration)</NativeBuildOutputDir>
+            </PropertyGroup>
+
+            <PropertyGroup Condition="'$(IsAndroidTarget)' == 'true'">
+                <OnnxRuntimeBuildDirectory Condition="'$(OnnxRuntimeBuildDirectory)'==''">$(OnnxRuntimeRoot)\build\Android</OnnxRuntimeBuildDirectory>
+                <NativeBuildOutputDir>$(OnnxRuntimeBuildDirectory)\$(Configuration)</NativeBuildOutputDir>
+            </PropertyGroup>
+
+            <PropertyGroup Condition="'$(IsIOSTarget)' == 'true'">
+                <OnnxRuntimeBuildDirectory Condition="'$(OnnxRuntimeBuildDirectory)'==''">$(OnnxRuntimeRoot)\build\iOS</OnnxRuntimeBuildDirectory>
+                <Platform Condition=" '$(Platform)' == '' ">iPhoneSimulator</Platform>
+                <PlatformLower>$(Platform.ToLower())</PlatformLower>
+                <NativeBuildOutputDir>$(OnnxRuntimeBuildDirectory)\$(Configuration)\$(Configuration)-$(PlatformLower)</NativeBuildOutputDir>
+            </PropertyGroup>
+
+            <PropertyGroup Condition="'$(IsMacCatalystTarget)' == 'true'">
+                <OnnxRuntimeBuildDirectory Condition="'$(OnnxRuntimeBuildDirectory)'==''">$(OnnxRuntimeRoot)\build\macOS</OnnxRuntimeBuildDirectory>
+                <NativeBuildOutputDir>$(OnnxRuntimeBuildDirectory)\$(Configuration)</NativeBuildOutputDir>
+            </PropertyGroup>
+
+            <ItemGroup Condition="'$(IsWindowsBuild)' == 'true' OR '$(IsWindowsTarget)'=='true'">
+                <None Condition="Exists('$(NativeBuildOutputDir)\onnxruntime.dll')"
+                        Include="$(NativeBuildOutputDir)\*.dll;$(NativeBuildOutputDir)\*.pdb">
+                    <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+                    <Visible>true</Visible>
+                </None>
+            </ItemGroup>
+
+            <ItemGroup Condition="'$(IsLinuxBuild)' == 'true'">
+                <None Condition="Exists('$(NativeBuildOutputDir)\libonnxruntime.so')"
+                        Include="$(NativeBuildOutputDir)\libonnxruntime.so">
+                    <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+                    <Visible>false</Visible>
+                </None>
+            </ItemGroup>
+
+            <ItemGroup Condition="'$(IsMacOSBuild)' == 'true'">
+                <None Condition="Exists('$(NativeBuildOutputDir)\libonnxruntime.dylib')"
+                        Include="$(NativeBuildOutputDir)\libonnxruntime.dylib">
+                    <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+                    <Visible>false</Visible>
+                </None>
+            </ItemGroup>
+
+            <ItemGroup Condition="'$(IsAndroidTarget)' == 'true'">
+                <AndroidNativeLibrary Condition="Exists('$(NativeBuildOutputDir)\libonnxruntime.so')"
+                                        Include="$(NativeBuildOutputDir)\libonnxruntime.so">
+                    <Link>libs\libonnxruntime.so</Link>
+                </AndroidNativeLibrary>
+            </ItemGroup>
+
+            <ItemGroup Condition="'$(IsIOSTarget)' == 'true'">
+                <NativeReference Condition="Exists('$(NativeBuildOutputDir)\libonnxruntime.dylib')"
+                                    Include="$(NativeBuildOutputDir)\libonnxruntime.dylib">
+                    <Link>libs\libonnxruntime.dylib</Link>
+                    <Kind>Dynamic</Kind>
+                    <ForceLoad>True</ForceLoad>
+                    <IsCxx>True</IsCxx>
+                </NativeReference>
+            </ItemGroup>
+
+            <ItemGroup Condition="'$(IsMacCatalystTarget)' == 'true'">
+                <NativeReference Condition="Exists('$(NativeBuildOutputDir)\libonnxruntime.dylib')"
+                    Include="$(NativeBuildOutputDir)\libonnxruntime.dylib">
+                    <Link>libs\libonnxruntime.dylib</Link>
+                    <Kind>Dynamic</Kind>
+                    <ForceLoad>True</ForceLoad>
+                    <IsCxx>True</IsCxx>
+                </NativeReference>
+            </ItemGroup>
+        </When>
+    </Choose>
+
+    <!-- Property debug output. -->
+    <PropertyGroup>
+        <!-- local builds-->
+        <HaveOrtDll>false</HaveOrtDll>
+        <HaveOrtDll Condition="Exists('$(NativeBuildOutputDir)\onnxruntime.dll')">true</HaveOrtDll>
+        <HaveOrtSo>false</HaveOrtSo>
+        <HaveOrtSo Condition="Exists('$(NativeBuildOutputDir)\libonnxruntime.so')">true</HaveOrtSo>
+        <HaveOrtDylib>false</HaveOrtDylib>
+        <HaveOrtDylib Condition="Exists('$(NativeBuildOutputDir)\libonnxruntime.dylib')">true</HaveOrtDylib>
+    </PropertyGroup>
+
+    <Target Name="DumpLocalBuild" BeforeTargets="PreBuildEvent">
+        <Message Text="Prebuilt runtime=$(UsePrebuiltNativePackage)" />
+        <Message Text="NativeBuildOutputDir=$(NativeBuildOutputDir)" />
+        <Message Text="onnxruntime.dll from local build=$(HaveOrtDll)" />
+        <Message Text="libonnxruntime.so from local build=$(HaveOrtSo)" />
+        <Message Text="libonnxruntime.dylib from local build=$(HaveOrtDylib)" />
+    </Target>
+
+</Project>