anchor.diff:  let testOutputDir = buildDir + @"Specs\"
   let nugetDir = buildDir + @"NuGet\"
   let deployDir = @".\Release\"
  -let nugetLibDir = nugetDir + @"lib\net40\"
   
   (* files *)
   let slnReferences = !! @".\Source\*.sln"
  
positive.code: let RequireAtLeast version = sprintf "%s" <| NormalizeVersion version
  
  Target "BuildNuGet" (fun _ ->
      CleanDirs [nugetDir; nugetLibDir]
  
      [buildDir + "Machine.Fakes.dll"; buildDir + "Machine.Fakes.xml"]
          |> CopyTo nugetLibDir
  
negative.code:                     AccessKey = NugetKey
                      Publish = NugetKey <> "none"
                      ToolPath = @".\Source\.nuget\nuget.exe"
                      WorkingDir = nugetFlavourDir })
                  "machine.fakes.nuspec"
      )
  )
  