anchor.diff:  set NL=^^^%NLM%%NLM%^%NLM%%NLM%
   
   REM Set the current directory.
  -if not exist "%ROOT_DIR%" (
  -	mkdir "%ROOT_DIR%
  -)
  +if not exist "%ROOT_DIR%" mkdir "%ROOT_DIR%"
   cd "%ROOT_DIR%"
   
   SET OLDPATH=%PATH%
  
positive.code: SET R_MAJOR_VERSION=3
  SET R_FULL_VERSION=3.1.2
  SET RTOOLS_BIN_DIR=C:\Rtools\bin
  
  REM Note: Tool path must use forward slashes, and
  REM should end with a trailing slash.
  
negative.code: REM plus some other libraries.
  xcopy /E C:\R64 %ROOT_DIR%\R-%R_FULL_VERSION%
  
  REM Ensure the temporary directory exists.
  if not exist "%TMPDIR%" mkdir "%TMPDIR"
  
  cd R-%R_FULL_VERSION%\src\gnuwin32
  
  