anchor.diff:  if "%SPHINXBUILD%" == "" (
   	set SPHINXBUILD=sphinx-build
   )
  -set BUILDDIR=_build
  +set BUILDDIR=build
   set ALLSPHINXOPTS=-d %BUILDDIR%/doctrees %SPHINXOPTS% source
   set I18NSPHINXOPTS=%SPHINXOPTS% .
   if NOT "%PAPER%" == "" (
  
positive.code: 
  if "%1" == "html" (
  	%SPHINXBUILD% -b html %ALLSPHINXOPTS% %BUILDDIR%\html
  
  	if errorlevel 1 exit /b 1
  	echo.
  	echo.Build finished. The HTML pages are in %BUILDDIR%/html.
  
negative.code: )
  
  if "%1" == "clean" (
  	rmdir %BUILDDIR% /s /q
  	del /q /s source\docs\gallery\*
  	goto end
  )
  