Use conditionals

Author: gusty

tests/FSharpPlus.Tests/Expr.fs

@@ -18,7 +18,12 @@ module Expr =
 
         areEqual "11" res
 
-    let quotseval x = FSharp.Quotations.Evaluator.QuotationEvaluator.EvaluateUntyped x
+    let quotseval x =
+#if NETSTANDARD
+        FSharp.Quotations.Evaluator.QuotationEvaluator.EvaluateUntyped x
+#else
+        Swensen.Unquote.Operators.evalRaw x
+#endif
     let unquote   x = Swensen.Unquote.Operators.evalRaw x
     let powerpack x = Microsoft.FSharp.Linq.QuotationEvaluator.EvaluateUntyped x
 

tests/FSharpPlus.Tests/FSharpPlus.Tests.fsproj

@@ -33,7 +33,6 @@
     <ProjectReference Include="..\CSharpLib\CSharpLib.csproj" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="FSharp.Quotations.Evaluator" Version ="2.1.0"/>
     <PackageReference Include="FSPowerPack.Linq.Community" Version="3.0.0" />
     <PackageReference Include="System.Runtime" Version="4.3.1" />
     <PackageReference Include="Unquote" Version="5.0.0" />
@@ -44,4 +43,9 @@
     <PackageReference Include="NUnit3TestAdapter" Version="3.11.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
   </ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.0'">
+    <PackageReference Include="FSharp.Quotations.Evaluator">
+      <Version>2.1.0</Version>
+    </PackageReference>
+  </ItemGroup>
 </Project>