update csproj.

diff --git a/mcs/class/Microsoft.Build/Microsoft.Build-useful.csproj b/mcs/class/Microsoft.Build/Microsoft.Build-useful.csproj
index 803705b27fb64c61a5924caf435f1832be1bd95b..460c56c8cd43d4a65544c5f9086f49cf44996a27 100644 (file)
--- a/mcs/class/Microsoft.Build/Microsoft.Build-useful.csproj
+++ b/mcs/class/Microsoft.Build/Microsoft.Build-useful.csproj
@@ -162,6 +162,11 @@
     <Compile Include="Microsoft.Build.Logging\ConfigurableForwardingLogger.cs" />\r
     <Compile Include="Microsoft.Build.Logging\DistributedFileLogger.cs" />\r
     <Compile Include="Microsoft.Build.Internal\WindowsCompatibilityExtensions.cs" />\r
+    <Compile Include="..\Microsoft.Build.Engine\Microsoft.Build.BuildEngine\EventSource.cs">\r
+      <Link>external\engine\EventSource.cs</Link>\r
+    </Compile>\r
+    <Compile Include="Microsoft.Build.Internal\TaskEngine.cs" />\r
+    <Compile Include="Microsoft.Build.Internal\BuildEngine4.cs" />\r
   </ItemGroup>\r
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. \r
        Other similar extension points exist, see Microsoft.Common.targets.\r