targets.xml

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
    <ItemGroup Condition=" '$(AndroidApplication)'=='true' ">
        <AndroidLibrary Include="$(MSBuildThisFileDirectory)..\..\runtimes\android\native\*">
            <Link>%(Filename)%(Extension)</Link>
        </AndroidLibrary>
    </ItemGroup>
</Project>