anchor.diff:  xcopy /F /G /H /R /K /Y /S /E reference %DISTDIR%\reference\
   
   cd %DISTROOT%
  -7za a %ARCHIVE% %DISTDIR%
  +7za a %DIST_ARCHIVE% %DISTDIR%
   goto :eof
   
   :usage
  
positive.code: mkdir %DISTDIR%\reference
  mkdir %DISTDIR%\site-lisp
  
  cd %BUILDDIR%
  call git clone %GIT_REPO% %BUILDDIR% || exit /b 1
  call git checkout %TAG% || git tag; exit /b 1
  call build.bat || exit /b 1
  call bytecompile.bat || exit /b 1
  
  
negative.code: rd /S /Q %DISTROOT% 2> nul
  
  mkdir %DISTROOT%
  mkdir %SRCDIR%
  mkdir %DISTDIR%
  mkdir %DISTDIR%\lisp
  mkdir %DISTDIR%\etc
  