update csproj.

diff --git a/mcs/class/Microsoft.Build/Microsoft.Build-useful.csproj b/mcs/class/Microsoft.Build/Microsoft.Build-useful.csproj
index ddd6cd046a3a00fe00e2eb6d4b0f83dbd31e23ba..c97a02a9609f673869a2d32ccb4fd08c1ff23ff3 100644 (file)
--- a/mcs/class/Microsoft.Build/Microsoft.Build-useful.csproj
+++ b/mcs/class/Microsoft.Build/Microsoft.Build-useful.csproj
@@ -161,6 +161,7 @@
     </Compile>\r
     <Compile Include="Microsoft.Build.Logging\ConfigurableForwardingLogger.cs" />\r
     <Compile Include="Microsoft.Build.Logging\DistributedFileLogger.cs" />\r
+    <Compile Include="Microsoft.Build.Internal\WindowsCompatibilityExtensions.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