anchor.diff:  Target "Clean" (fun _ ->
       CleanDirs [ "obj" ]
       CleanDirs [ "out/api"; "out/docs"; "out/packages" ]
  -    CleanDirs [ "out/lib/Net35"; "out/lib/Net40"; "out/lib/Profile47"; "out/lib/Net344" ]
  -    CleanDirs [ "out/test/Net35"; "out/test/Net40"; "out/test/Profile47"; "out/test/Net344" ]
  +    CleanDirs [ "out/lib/Net35"; "out/lib/Net40"; "out/lib/Profile47"; "out/lib/Profile344" ]
  +    CleanDirs [ "out/test/Net35"; "out/test/Net40"; "out/test/Profile47"; "out/test/Profile344" ]
       CleanDirs [ "out/lib-signed/Net40" ]
       CleanDirs [ "out/test-signed/Net40" ])
   
  
positive.code:     CleanDir "obj/NuGet"
      CopyFile "obj/NuGet/license.txt" "LICENSE.md"
      CopyFile "obj/NuGet/readme.txt" "RELEASENOTES.md"
      NuGet (fun p ->
          { p with ToolPath = "tools/NuGet/NuGet.exe"
                   OutputPath = "out/packages/NuGet"
                   WorkingDir = "obj/NuGet"
  
negative.code:                       Description = description + supportSigned
                        Tags = fsharpPack.Tags + " signed"
                        Dependencies = [ "MathNet.Numerics.Signed" ]
                        Files = [ "..\..\out\lib-signed\Net40\MathNet.Numerics.FSharp.*", Some libnet40, None;
                                  "..\..\src\FSharp\**\*.fs", Some "src/Common", None ] }
  
  
  // PREPARE
  