anchor.diff:      let FSC = requireArtifact ("fsc" ++ configurationName ++ fscArchitecture ++ "fsc.exe")
       let FSCOREDLLPATH = requireArtifact ("FSharp.Core" ++ configurationName ++ fsharpCoreArchitecture ++ "FSharp.Core.dll")
   
  -    let defaultPlatform = 
  -        match Is64BitOperatingSystem with 
  +    let defaultPlatform =
  +        match Is64BitOperatingSystem with
   //        | PlatformID.MacOSX, true -> "osx.10.10-x64"
   //        | PlatformID.Unix,true -> "ubuntu.14.04-x64"
           | true -> "win7-x64"
  
positive.code: 
          match exitCode with
          | 0 -> CmdResult.Success
          | err -> 
              let msg = sprintf "Error running command '%s' with args '%s' in directory '%s'" fscExe args workDir 
              CmdResult.ErrorLevel (msg, err)
  #else
          ignore workDir 
  #if NETCOREAPP
          exec dotNetExe (fscExe + " " + args)
  #else
  
negative.code: 
      let cfg =
          let c = config configurationName env
          let usedEnvVars = c.EnvironmentVariables  |> Map.add "FSC" c.FSC
          { c with EnvironmentVariables = usedEnvVars }
  
      logConfig cfg
  