Index: typo3/sysext/cms/tslib/class.tslib_fe.php
===================================================================
--- typo3/sysext/cms/tslib/class.tslib_fe.php	(revision 3539)
+++ typo3/sysext/cms/tslib/class.tslib_fe.php	(revision 3542)
@@ -1804,6 +1804,10 @@
 						$this->setSimulReplacementChar();
 					}
 
+					if ($this->config['config']['typolinkEnableLinksAccrosDomains']) {
+						$this->config['config']['typolinkCheckRootline'] = true;
+					}
+
 						// Set default values for removeDefaultJS and inlineStyle2TempFile so CSS and JS are externalized if compatversion is higher than 4.0
 					if (!isset($this->config['config']['removeDefaultJS']) && t3lib_div::compat_version('4.0'))	{
 						$this->config['config']['removeDefaultJS'] = 'external';
Index: typo3/sysext/cms/tslib/class.tslib_menu.php
===================================================================
--- typo3/sysext/cms/tslib/class.tslib_menu.php	(revision 3539)
+++ typo3/sysext/cms/tslib/class.tslib_menu.php	(revision 3542)
@@ -1167,9 +1167,9 @@
 			// Creating link:
 		if ($this->mconf['collapse'] && $this->isActive($this->menuArr[$key]['uid'], $this->getMPvar($key)))	{
 			$thePage = $this->sys_page->getPage($this->menuArr[$key]['pid']);
-			$LD = $this->tmpl->linkData($thePage,$mainTarget,'','',$overrideArray, $this->mconf['addParams'].$MP_params.$this->menuArr[$key]['_ADD_GETVARS'], $typeOverride);
+			$LD = $this->menuTypoLink($thePage,$mainTarget,'','',$overrideArray, $this->mconf['addParams'].$MP_params.$this->menuArr[$key]['_ADD_GETVARS'], $typeOverride);
 		} else {
-			$LD = $this->tmpl->linkData($this->menuArr[$key],$mainTarget,'','',$overrideArray, $this->mconf['addParams'].$MP_params.$this->I['val']['additionalParams'].$this->menuArr[$key]['_ADD_GETVARS'], $typeOverride);
+			$LD = $this->menuTypoLink($this->menuArr[$key],$mainTarget,'','',$overrideArray, $this->mconf['addParams'].$MP_params.$this->I['val']['additionalParams'].$this->menuArr[$key]['_ADD_GETVARS'], $typeOverride);
 		}
 
 			// Override URL if using "External URL" as doktype with a valid e-mail address:
@@ -1225,7 +1225,7 @@
 			$addParams = $this->mconf['showAccessRestrictedPages.']['addParams'];
 			$addParams = str_replace('###RETURN_URL###',rawurlencode($LD['totalURL']),$addParams);
 			$addParams = str_replace('###PAGE_ID###',$page['uid'],$addParams);
-			$LD = $this->tmpl->linkData($thePage,$mainTarget,'','','', $addParams, $typeOverride);
+			$LD = $this->menuTypoLink($thePage,$mainTarget,'','','', $addParams, $typeOverride);
 		}
 	}
 
@@ -1508,6 +1508,40 @@
 		return $banUidArray;
 	}
 
+	/**
+	 * Converts a call to linkData to a call to typolink.
+	 *
+	 * @param	array	$page	Page record (uid points where to link to)
+	 * @param	string	$oTarget	Target frame/window
+	 * @param	boolean	$no_cache	true if caching should be disabled
+	 * @param	string	$script	Alternative script name
+	 * @param	array	$overrideArray	Array to override values in $page
+	 * @param	string	$addParams	Parameters to add to URL
+	 * @param	array	$typeOverride	"type" value
+	 * @return	array	See linkData
+	 */
+	function menuTypoLink($page, $oTarget, $no_cache, $script, $overrideArray = '', $addParams = '', $typeOverride = '') {
+		$conf = array(
+			'parameter' => is_array($overrideArray) && $overrideArray['uid'] ? $overrideArray['uid'] : $page['uid'],
+		);
+		if ($typeOverride && t3lib_div::testInt($typeOverride)) {
+			$conf['parameter'] .= ',' . $typeOverride;
+		}
+		if ($addParams) {
+			$conf['additionalParams'] = $addParams;
+		}
+		if ($no_cache) {
+			$conf['no_cache'] = true;
+		}
+		if ($oTarget) {
+			$conf['target'] = $oTarget;
+		}
+		$this->parent_cObj->typoLink('|', $conf);
+		$LD = $this->parent_cObj->lastTypoLinkLD;
+		$LD['totalURL'] = $this->parent_cObj->lastTypoLinkUrl;
+		return $LD;
+	}
+
 }
 
 
@@ -2481,7 +2515,7 @@
 									unset($theValArr['text.']);	// if this is not done it seems that imageMaps will be rendered wrong!!
 										// check links
 
-									$LD = $this->tmpl->linkData($this->menuArr[$key],$this->mconf['target'],'','',array(),'',$this->mconf['forceTypeValue']);
+									$LD = $this->menuTypoLink($this->menuArr[$key],$this->mconf['target'],'','',array(),'',$this->mconf['forceTypeValue']);
 
 										// If access restricted pages should be shown in menus, change the link of such pages to link to a redirection page:
 									$this->changeLinksForAccessRestrictedPages($LD, $this->menuArr[$key], $this->mconf['target'], $this->mconf['forceTypeValue']);
@@ -2780,7 +2814,7 @@
 					$url='';
 					$target='';
 					if ((!$addLines && !$levelConf['noLink']) || $levelConf['alwaysLink']) {
-						$LD = $this->tmpl->linkData($data,$this->mconf['target'],'','',array(),$MP_params,$this->mconf['forceTypeValue']);
+						$LD = $this->menuTypoLink($data,$this->mconf['target'],'','',array(),$MP_params,$this->mconf['forceTypeValue']);
 
 							// If access restricted pages should be shown in menus, change the link of such pages to link to a redirection page:
 						$this->changeLinksForAccessRestrictedPages($LD, $data, $this->mconf['target'], $this->mconf['forceTypeValue']);
Index: typo3/sysext/cms/tslib/class.tslib_content.php
===================================================================
--- typo3/sysext/cms/tslib/class.tslib_content.php	(revision 3539)
+++ typo3/sysext/cms/tslib/class.tslib_content.php	(revision 3542)
@@ -335,6 +335,7 @@
 	var $checkPid_badDoktypeList = '255';
 	var $lastTypoLinkUrl=''; 	// This will be set by typoLink() to the url of the most recent link created.
 	var $lastTypoLinkTarget=''; 	// DO. link target.
+	var $lastTypoLinkLD = array();
 	var $substMarkerCache=array();	// Caching substituteMarkerArrayCached function
 	var $recordRegister=array();	// Array that registers rendered content elements (or any table) to make sure they are not rendered recursively!
 	var $cObjHookObjectsArr = array();		// Containig hooks for userdefined cObjects
@@ -5035,6 +5036,7 @@
 	 * @link http://typo3.org/doc.0.html?&tx_extrepmgm_pi1[extUid]=270&tx_extrepmgm_pi1[tocEl]=321&cHash=59bd727a5e
 	 */
 	function typoLink($linktxt, $conf)	{
+		$LD = array();
 		$finalTagParts = array();
 		$finalTagParts['aTagParams'] = $this->getATagParams($conf);
 
@@ -5212,7 +5214,24 @@
 							// Add "&MP" var:
 							$addQueryParams.= '&MP='.rawurlencode(implode(',',$MPvarAcc));
 						}
-						elseif ($GLOBALS['TSFE']->config['config']['typolinkCheckRootline'])	{
+						elseif ($GLOBALS['TSFE']->config['config']['typolinkCheckRootline']) {
+
+							// If we link across domains and page is free type shortcut, we must resolve the shortcut first!
+							// If we do not do it, TYPO3 will fail to (1) link proper page in RealURL/CoolURI because
+							// they return relative links and (2) show proper page if no RealURL/CoolURI exists when link is clicked
+							if ($GLOBALS['TSFE']->config['config']['typolinkEnableLinksAcrossDomains'] && $page['doktype'] == 4 && $page['shortcut_mode'] == 0) {
+								$page2 = $page;	// Save in case of broken destination or endless loop
+								$maxLoopCount = 20;	// Same as in RealURL, seems enough
+								while ($maxLoopCount && is_array($page) && $page['doktype'] == 4 && $page['shortcut_mode'] == 0) {
+									$page = $GLOBALS['TSFE']->sys_page->getPage($page['shortcut'], $disableGroupAccessCheck);
+									$maxLoopCount--;
+								}
+								if (count($page) == 0 || $maxLoopCount == 0) {
+									// We revert if shortcut is broken or maximum number of loops is exceeded (indicates endless loop)
+									$page = $page2;
+								}
+							}
+
 							// This checks if the linked id is in the rootline of this site and if not it will find the domain for that ID and prefix it:
 							$tCR_rootline = $GLOBALS['TSFE']->sys_page->getRootLine($page['uid']);	// Gets rootline of linked-to page
 							$tCR_flag = 0;
@@ -5221,6 +5240,10 @@
 									$tCR_flag = 1;	// OK, it was in rootline!
 									break;
 								}
+								if ($tCR_data['is_siteroot']) {
+									// Possibly subdomain inside main domain. In any case we must stop now because site root is reached.
+									break;
+								}
 							}
 							if (!$tCR_flag)	{
 								foreach ($tCR_rootline as $tCR_data)	{
@@ -5233,15 +5256,28 @@
 							}
 						}
 							// If other domain, overwrite
-						if (strlen($tCR_domain))	{
+						if (strlen($tCR_domain) && !$GLOBALS['TSFE']->config['config']['typolinkEnableLinksAccrosDomains']) {
 							$target = isset($conf['extTarget']) ? $conf['extTarget'] : $GLOBALS['TSFE']->extTarget;
-							if ($conf['extTarget.'])	{$target = $this->stdWrap($target, $conf['extTarget.']);}
-							if ($forceTarget)	{$target=$forceTarget;}
+							if ($conf['extTarget.']) {
+								$target = $this->stdWrap($target, $conf['extTarget.']);
+							}
+							if ($forceTarget) {
+								$target = $forceTarget;
+							}
 							$LD['target'] = $target;
 							$this->lastTypoLinkUrl = $this->URLqMark('http://'.$tCR_domain.'/index.php?id='.$page['uid'],$addQueryParams).$sectionMark;
 						} else {	// Internal link:
-							if ($forceTarget)	{$target=$forceTarget;}
+							if ($forceTarget) {
+								$target = $forceTarget;
+							}
 							$LD = $GLOBALS['TSFE']->tmpl->linkData($page,$target,$conf['no_cache'],'','',$addQueryParams,$theTypeP);
+							if (strlen($tCR_domain)) {
+								// We will add domain only if URL does not have it already.
+								$urlParts = parse_url($LD['totalURL']);
+								if ($urlParts['host'] == '') {
+									$LD['totalURL'] = 'http://' . $tCR_domain . ($LD['totalURL']{0} == '/' ? '' : '/') . $LD['totalURL'];
+								}
+							}
 							$this->lastTypoLinkUrl = $this->URLqMark($LD['totalURL'],'').$sectionMark;
 						}
 
@@ -5286,10 +5322,14 @@
 				}
 			}
 
-			if ($forceTitle)	{$title=$forceTitle;}
+			$this->lastTypoLinkLD = $LD;
 
-			if ($JSwindowParams)	{
+			if ($forceTitle) {
+				$title=$forceTitle;
+			}
 
+			if ($JSwindowParams) {
+
 					// Create TARGET-attribute only if the right doctype is used
 				if (!t3lib_div::inList('xhtml_strict,xhtml_11,xhtml_2', $GLOBALS['TSFE']->xhtmlDoctype))	{
 					$target = ' target="FEopenLink"';