Breaking: #65432 - Storage of module URI in global variable has been removed

See Issue #65432

Description

Previously the URI to a module which was dispatched through mod.php was stored in a global variable $GLOBALS['MCONF']['_'].

In terms of cleanup of global variable usage and module configuration cleanup and streamlining, this functionality has been removed without substitution.

Impact

Any backend module code which accesses $GLOBALS['MCONF']['_'] to get the module URI will not work any more.

Affected installations

TYPO3 CMS 7 installations using extensions with backend modules which use $GLOBALS['MCONF']['_'].

Migration

Extension code needs to be changed in a way that the API BackendUtility::getModuleUrl('module_name') is used instead of accessing $GLOBALS['MCONF']['_'].