build.targets

<Project>

  <PropertyGroup>
    <RootNamespace>CLinq</RootNamespace>
    <LangVersion>latest</LangVersion>
  </PropertyGroup>

  <PropertyGroup>
    <NoTuples Condition="
                '$(TargetFramework)' == 'netstandard1.0' 
             or '$(TargetFramework)' == 'netstandard1.1' 
             or '$(TargetFramework)' == 'netstandard1.2' 
             or '$(TargetFramework)' == 'netstandard1.3' 
             or '$(TargetFramework)' == 'netstandard1.4' 
             or '$(TargetFramework)' == 'netstandard1.5' 
             or '$(TargetFramework)' == 'netstandard1.6' 
             or '$(TargetFramework)' == 'netcoreapp1.0' 
             or '$(TargetFramework)' == 'netcoreapp1.1' 
             or '$(TargetFramework)' == 'net40'
             or '$(TargetFramework)' == 'net403'
             or '$(TargetFramework)' == 'net45' 
             or '$(TargetFramework)' == 'net451' 
             or '$(TargetFramework)' == 'net452' 
             or '$(TargetFramework)' == 'net46' 
             or '$(TargetFramework)' == 'net461'
             or '$(TargetFramework)' == 'net462'">true</NoTuples>
  </PropertyGroup>

  <ItemGroup Condition="'$(NoTuples)' == 'true'">
    <PackageReference Include="System.ValueTuple" Version="4.3.0" />
  </ItemGroup>

</Project>