anchor.diff:  
   set SPARKCLR_HOME=%CMDHOME%\runtime
   @echo SPARKCLR_HOME=%SPARKCLR_HOME%
  +
  +if defined buildCSharp goto :buildCSharp
   
   if EXIST "%SPARKCLR_HOME%" (
       @echo Delete existing %SPARKCLR_HOME% ...
  
positive.code: @setlocal
  @echo OFF
  
  SET CMDHOME=%~dp0
  @REM Remove trailing backslash \
  
negative.code:   )
  )
  
  :buildCSharp
  @echo Assemble SparkCLR C# components
  pushd "%CMDHOME%\..\csharp"
  
  