code: def _doc_make(*make_args):
      
      if sys.platform == 'win32':
          # Windows
          make_cmd = ['make.bat']
      else:
          # Linux, Mac OS X, and others
          make_cmd = ['make']
      make_cmd.extend(make_args)
  
      # Account for a stupid Python "bug" on Windows:
      # <http://bugs.python.org/issue15533>
      with cwd(DOCS_DIRECTORY):
          retcode = subprocess.call(make_cmd)
      return retcode
docs: Run make in sphinx' docs directory.
  
      :return: exit code