parameters: (self)
return_statement: return ''
docstring: Returns the default SDKROOT to use.
  
      Prior to version 5.0.0, if SDKROOT was not explicitly set in the Xcode
      project, then the environment variable was empty. Starting with this
      version, Xcode uses the name of the newest SDK installed.
docstring_summary: Returns the default SDKROOT to use.
docstring_tokens: Returns the default SDKROOT to use .
function: def _DefaultSdkRoot(self):
      """Returns the default SDKROOT to use.
  
      Prior to version 5.0.0, if SDKROOT was not explicitly set in the Xcode
      project, then the environment variable was empty. Starting with this
      version, Xcode uses the name of the newest SDK installed.
      """
      xcode_version, xcode_build = XcodeVersion()
      if xcode_version < '0500':
        return ''
      default_sdk_path = self._XcodeSdkPath('')
      default_sdk_root = XcodeSettings._sdk_root_cache.get(default_sdk_path)
      if default_sdk_root:
        return default_sdk_root
      try:
        all_sdks = GetStdout(['xcodebuild', '-showsdks'])
      except:
        # If xcodebuild fails, there will be no valid SDKs
        return ''
      for line in all_sdks.splitlines():
        items = line.split()
        if len(items) >= 3 and items[-2] == '-sdk':
          sdk_root = items[-1]
          sdk_path = self._XcodeSdkPath(sdk_root)
          if sdk_path == default_sdk_path:
            return sdk_root
      return ''
function_tokens: def _DefaultSdkRoot ( self ) : xcode_version , xcode_build = XcodeVersion ( ) if xcode_version < '0500' : return '' default_sdk_path = self . _XcodeSdkPath ( '' ) default_sdk_root = XcodeSettings . _sdk_root_cache . get ( default_sdk_path ) if default_sdk_root : return default_sdk_root try : all_sdks = GetStdout ( [ 'xcodebuild' , '-showsdks' ] ) except : # If xcodebuild fails, there will be no valid SDKs return '' for line in all_sdks . splitlines ( ) : items = line . split ( ) if len ( items ) >= 3 and items [ - 2 ] == '-sdk' : sdk_root = items [ - 1 ] sdk_path = self . _XcodeSdkPath ( sdk_root ) if sdk_path == default_sdk_path : return sdk_root return ''