Merge pull request #390 from jlaanstra/user/jlaans/xaml-targets

The CppWinRTAddXamlReferences/CppWinRTSetXamlLocalAssembly targets should only execute if the xaml language is CppWinRT.

Author: Scottj1s

nuget/Microsoft.Windows.CppWinRT.targets

@@ -523,15 +523,19 @@ $(XamlMetaDataProviderPch)
     <Target Name="CppWinRTMakeProjections" DependsOnTargets="CppWinRTCalculateEnabledProjections;CppWinRTMakePlatformProjection;CppWinRTMakeReferenceProjection;CppWinRTMakeComponentProjection;$(CppWinRTMakeProjectionsDependsOn)" />
 
     <!--Add references to all merged project WinMD files for Xaml Compiler-->
-    <Target Name="CppWinRTAddXamlReferences" DependsOnTargets="$(CppWinRTAddXamlReferencesDependsOn)">
+    <Target Name="CppWinRTAddXamlReferences"
+            Condition="'@(Page)@(ApplicationDefinition)' != '' and '$(XamlLanguage)' == 'CppWinRT'"
+            DependsOnTargets="$(CppWinRTAddXamlReferencesDependsOn)">
         <ItemGroup>
             <XamlReferencesToCompile Include="$(OutDir)*.winmd" />
         </ItemGroup>
     </Target>
 
     <!--Clear merged assembly and set local assembly for Xaml Compiler.
         (Note: this can be removed when CppWinRT references are removed from the Xaml targets file.)-->
-    <Target Name="CppWinRTSetXamlLocalAssembly" DependsOnTargets="$(CppWinRTSetXamlLocalAssemblyDependsOn)">
+    <Target Name="CppWinRTSetXamlLocalAssembly"            
+            Condition="'@(Page)@(ApplicationDefinition)' != '' and '$(XamlLanguage)' == 'CppWinRT'"
+            DependsOnTargets="$(CppWinRTSetXamlLocalAssemblyDependsOn)">
         <PropertyGroup>
             <CppWinRTMetadataAssembly></CppWinRTMetadataAssembly>
             <XamlLocalAssembly>$(CppWinRTProjectWinMD)</XamlLocalAssembly>