reactive/Rx.NET/Source/tests/Directory.build.targets

<Project>  
  <Import Project="..\Directory.build.targets" />
  <PropertyGroup>
    <DebugType Condition="'$(TargetFramework)' != 'net472'">portable</DebugType>
    <DebugType Condition="'$(TargetFramework)' == 'net472'">full</DebugType>
  </PropertyGroup>
</Project>