SharpGenTools.Sdk/SharpGenTools.Sdk.props (6 lines of code) (raw):
<Project>
<PropertyGroup>
<SharpGenSdkUsedAsPackageReference Condition="'$(SharpGenSdkUsedAsPackageReference)' == ''">true</SharpGenSdkUsedAsPackageReference>
</PropertyGroup>
<Import Project="$(MSBuildThisFileDirectory)..\Sdk\Sdk.props" />
</Project>