anchor.diff:  set Script=%~nx0
   call :processArgs %*
   if "%Action%" == "error" goto :exitScript
  +if "%Action%" == "clean" (
  +  call :clean
  +  goto :exitScript
  +)
   if "%Action%" == "help" (
     call :usage
     goto :exitScript
  
positive.code: set Action=
  if "%~1" == "get"       set Action=get
  if "%~1" == "update"    set Action=update
  if "%~1" == "help"      set Action=help
  if "%~1" == ""          set Action=help
  
  
negative.code: echo.
  echo You must either:
  echo.
  echo   A) obtain pre-compiled GDAL libraries and their C# bindings, or
  echo   B) build the libraries and C# bindings manually.
  echo.
  echo In either case, the C# bindings must be in installed in this folder:
  