anchor.diff:  #endif
   #if REFERENCE
   buildReference()
  -#endif
  +#endif
positive.code: 
  #load "../../packages/build/FSharp.Formatting/FSharp.Formatting.fsx"
  #I "../../packages/build/FAKE/tools/"
  #r "FakeLib.dll"
  open Fake
  open System.IO
  open Fake.FileHelper
  open FSharp.Literate
  open FSharp.MetadataFormat
  
  // When called from 'build.fsx', use the public project URL as <root>
  // otherwise, use the current 'output' directory.
  
negative.code:       sourceFolder = __SOURCE_DIRECTORY__ @@ ".." @@ "..",
        publicOnly = true,libDirs = libDirs )
  
    // Exclude some Namespaces from the index
    let pathIndex = output @@ "reference" @@ "index.html"
    printfn "%s" pathIndex
    let ndx = 
      File.ReadAllLines pathIndex
      |> split [[|System.String.Empty|]]
      |> filter (fun x -> not (x |> exists (fun e -> e.Contains("BaseLib"))))
      |> filter (fun x -> not (x |> exists (fun e -> e.Contains("FsControl.Internals Namespace"))))
      |> intercalate [|System.String.Empty|]
    File.WriteAllLines(pathIndex, ndx)
  
  // Build documentation from `fsx` and `md` files in `docs/content`
  let buildDocumentation () =
  
  