reactive/Ix.NET/Source/Directory.build.targets

<Project>

  <!-- This props all need to be set in targets as they depend on the values set earlier -->
  <PropertyGroup Condition="'$(TargetFramework)' == 'netstandard1.0'">
    <DefineConstants>$(DefineConstants);NO_ARRAY_EMPTY;NO_CODE_COVERAGE_ATTRIBUTE;CRIPPLED_REFLECTION</DefineConstants>
  </PropertyGroup>
  <PropertyGroup Condition="'$(TargetFramework)' == 'netstandard1.4'">
    <DefineConstants>$(DefineConstants);NO_CODE_COVERAGE_ATTRIBUTE;CRIPPLED_REFLECTION</DefineConstants>
  </PropertyGroup>
  <PropertyGroup Condition="'$(TargetFramework)' == 'net45'">
    <DefineConstants>$(DefineConstants);NO_ARRAY_EMPTY;NO_TASK_FROMEXCEPTION</DefineConstants>
  </PropertyGroup>
  <PropertyGroup Condition="'$(TargetFramework)' == 'netcoreapp3.0' or '$(TargetFramework)' == 'netstandard2.1'">
    <!--
    NB: USE_ASYNC_ITERATOR relies on members in the framework only present in .NET Core 3.0 Preview 2 at the moment:
          error CS0518: Predefined type 'System.Runtime.CompilerServices.AsyncIteratorMethodBuilder' is not defined or imported
          error CS0656: Missing compiler required member 'System.Threading.Tasks.Sources.ManualResetValueTaskSourceCore`1.*
    -->
    <DefineConstants>$(DefineConstants);USE_ASYNC_ITERATOR;HAS_ASYNCENUMERABLE;HAS_ASYNCDISPOSABLE;BCL_HAS_CONFIGUREAWAIT</DefineConstants>
  </PropertyGroup>

  <PropertyGroup>
    <Product>$(AssemblyName) ($(TargetFramework))</Product>
  </PropertyGroup>

</Project>