diff -ur typo3_440/t3lib/class.t3lib_extmgm.php typo3_440_os2/t3lib/class.t3lib_extmgm.php
--- typo3_440/t3lib/class.t3lib_extmgm.php	2010-06-13 16:42:34.000000000 +0200
+++ typo3_440_os2/t3lib/class.t3lib_extmgm.php	2010-05-04 13:16:16.000000000 +0200
@@ -867,7 +867,7 @@
 			if ($T3_SERVICES[$serviceType][$serviceKey]['available'] && $T3_SERVICES[$serviceType][$serviceKey]['os']!='') {
 
 					// TYPO3_OS is not yet defined
-				$os_type = stristr(PHP_OS, 'win')&&!stristr(PHP_OS, 'darwin')?'WIN':'UNIX';
+				$os_type = (stristr(PHP_OS, 'win')&&!stristr(PHP_OS, 'darwin'))||stristr(PHP_OS,'os/2')?'WIN':'UNIX';
 
 				$os = t3lib_div::trimExplode(',', strtoupper($T3_SERVICES[$serviceType][$serviceKey]['os']));
 
diff -ur typo3_440/t3lib/thumbs.php typo3_440_os2/t3lib/thumbs.php
--- typo3_440/t3lib/thumbs.php	2010-06-13 16:42:34.000000000 +0200
+++ typo3_440_os2/t3lib/thumbs.php	2010-05-04 13:16:52.000000000 +0200
@@ -66,7 +66,7 @@
 // ******************
 // Constants defined
 // ******************
-define('TYPO3_OS', stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin')?'WIN':'');
+define('TYPO3_OS', (stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin'))||stristr(PHP_OS,'os/2')?'WIN':'');
 define('TYPO3_MODE','BE');
 if(!defined('PATH_thisScript')) define('PATH_thisScript',str_replace('//','/', str_replace('\\','/', (php_sapi_name()=='cgi'||php_sapi_name()=='isapi' ||php_sapi_name()=='cgi-fcgi')&&($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED'])? ($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED']):($_SERVER['ORIG_SCRIPT_FILENAME']?$_SERVER['ORIG_SCRIPT_FILENAME']:$_SERVER['SCRIPT_FILENAME']))));
 if(!defined('PATH_site'))  		define('PATH_site', preg_replace('/[^\/]*.[^\/]*$/','',PATH_thisScript));		// the path to the website folder (see init.php)
diff -ur typo3_440/typo3/init.php typo3_440_os2/typo3/init.php
--- typo3_440/typo3/init.php	2010-06-13 16:42:34.000000000 +0200
+++ typo3_440_os2/typo3/init.php	2010-05-04 13:17:06.000000000 +0200
@@ -81,7 +81,7 @@
 // *******************************
 // Define constants
 // *******************************
-define('TYPO3_OS', stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin')?'WIN':'');
+define('TYPO3_OS', (stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin'))||stristr(PHP_OS,'os/2')?'WIN':'');
 define('TYPO3_MODE','BE');
 define('PATH_thisScript',str_replace('//','/', str_replace('\\','/', (PHP_SAPI=='cgi'||PHP_SAPI=='isapi' ||PHP_SAPI=='cgi-fcgi')&&($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED'])? ($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED']):($_SERVER['ORIG_SCRIPT_FILENAME']?$_SERVER['ORIG_SCRIPT_FILENAME']:$_SERVER['SCRIPT_FILENAME']))));
 define('TYPO3_mainDir', 'typo3/');		// This is the directory of the backend administration for the sites of this TYPO3 installation.
diff -ur typo3_440/typo3/sysext/adodb/adodb/adodb-csvlib.inc.php typo3_440_os2/typo3/sysext/adodb/adodb/adodb-csvlib.inc.php
--- typo3_440/typo3/sysext/adodb/adodb/adodb-csvlib.inc.php	2009-11-25 16:02:14.000000000 +0100
+++ typo3_440_os2/typo3/sysext/adodb/adodb/adodb-csvlib.inc.php	2010-05-04 13:18:20.000000000 +0200
@@ -277,7 +277,7 @@
 	# 2. unlink($filename) fails -- ok, rename will fail
 	# 3. adodb reads stale file because unlink fails -- ok, $rs timeout occurs
 	# 4. another process creates $filename between unlink() and rename() -- ok, rename() fails and  cache updated
-		if (strncmp(PHP_OS,'WIN',3) === 0) {
+		if ((strncmp(PHP_OS,'WIN',3) === 0) || (strncmp(PHP_OS,'OS/2',4) === 0)) === 0) {
 			// skip the decimal place
 			$mtime = substr(str_replace(' ','_',microtime()),2); 
 			// getmypid() actually returns 0 on Win98 - never mind!
diff -ur typo3_440/typo3/sysext/adodb/adodb/adodb-pear.inc.php typo3_440_os2/typo3/sysext/adodb/adodb/adodb-pear.inc.php
--- typo3_440/typo3/sysext/adodb/adodb/adodb-pear.inc.php	2009-05-16 01:28:42.000000000 +0200
+++ typo3_440_os2/typo3/sysext/adodb/adodb/adodb-pear.inc.php	2010-05-04 13:18:28.000000000 +0200
@@ -361,7 +361,7 @@
 	function assertExtension($name)
 	{
 		if (!extension_loaded($name)) {
-			$dlext = (strncmp(PHP_OS,'WIN',3) === 0) ? '.dll' : '.so';
+			$dlext = ((strncmp(PHP_OS,'WIN',3) === 0) || (strncmp(PHP_OS,'OS/2',4) === 0)) ? '.dll' : '.so';
 			@dl($name . $dlext);
 		}
 		if (!extension_loaded($name)) {
diff -ur typo3_440/typo3/sysext/adodb/adodb/drivers/adodb-odbc_db2.inc.php typo3_440_os2/typo3/sysext/adodb/adodb/drivers/adodb-odbc_db2.inc.php
--- typo3_440/typo3/sysext/adodb/adodb/drivers/adodb-odbc_db2.inc.php	2009-11-25 16:02:14.000000000 +0100
+++ typo3_440_os2/typo3/sysext/adodb/adodb/drivers/adodb-odbc_db2.inc.php	2010-05-04 13:18:38.000000000 +0200
@@ -112,7 +112,7 @@
 	
 	function ADODB_DB2()
 	{
-		if (strncmp(PHP_OS,'WIN',3) === 0) $this->curmode = SQL_CUR_USE_ODBC;
+		if ((strncmp(PHP_OS,'WIN',3) === 0) || (strncmp(PHP_OS,'OS/2',4) === 0)) $this->curmode = SQL_CUR_USE_ODBC;
 		$this->ADODB_odbc();
 	}
 	
diff -ur typo3_440/typo3/sysext/adodb/adodb/drivers/adodb-sapdb.inc.php typo3_440_os2/typo3/sysext/adodb/adodb/drivers/adodb-sapdb.inc.php
--- typo3_440/typo3/sysext/adodb/adodb/drivers/adodb-sapdb.inc.php	2009-11-25 16:02:14.000000000 +0100
+++ typo3_440_os2/typo3/sysext/adodb/adodb/drivers/adodb-sapdb.inc.php	2010-05-04 13:18:46.000000000 +0200
@@ -33,7 +33,7 @@
 	
 	function ADODB_SAPDB()
 	{
-		//if (strncmp(PHP_OS,'WIN',3) === 0) $this->curmode = SQL_CUR_USE_ODBC;
+		//if ((strncmp(PHP_OS,'WIN',3) === 0) || (strncmp(PHP_OS,'OS/2',4) === 0)) $this->curmode = SQL_CUR_USE_ODBC;
 		$this->ADODB_odbc();
 	}
 	
diff -ur typo3_440/typo3/sysext/cms/tslib/index_ts.php typo3_440_os2/typo3/sysext/cms/tslib/index_ts.php
--- typo3_440/typo3/sysext/cms/tslib/index_ts.php	2010-06-13 16:42:34.000000000 +0200
+++ typo3_440_os2/typo3/sysext/cms/tslib/index_ts.php	2010-05-04 13:17:24.000000000 +0200
@@ -57,7 +57,7 @@
 // Constants defined
 // ******************
 $TYPO3_MISC['microtime_start'] = microtime(true);
-define('TYPO3_OS', stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin')?'WIN':'');
+define('TYPO3_OS', (stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin'))||stristr(PHP_OS,'os/2')?'WIN':'');
 define('TYPO3_MODE','FE');
 
 if (!defined('PATH_thisScript')) 	define('PATH_thisScript',str_replace('//','/', str_replace('\\','/', (PHP_SAPI=='cgi'||PHP_SAPI=='isapi' ||PHP_SAPI=='cgi-fcgi')&&($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED'])? ($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED']):($_SERVER['ORIG_SCRIPT_FILENAME']?$_SERVER['ORIG_SCRIPT_FILENAME']:$_SERVER['SCRIPT_FILENAME']))));
diff -ur typo3_440/typo3/sysext/cms/tslib/showpic.php typo3_440_os2/typo3/sysext/cms/tslib/showpic.php
--- typo3_440/typo3/sysext/cms/tslib/showpic.php	2010-06-13 16:42:34.000000000 +0200
+++ typo3_440_os2/typo3/sysext/cms/tslib/showpic.php	2010-05-04 13:17:30.000000000 +0200
@@ -64,7 +64,7 @@
 // ***********************
 // Paths are setup
 // ***********************
-define('TYPO3_OS', stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin')?'WIN':'');
+define('TYPO3_OS', (stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin'))||stristr(PHP_OS,'os/2')?'WIN':'');
 define('TYPO3_MODE','FE');
 if (!defined('PATH_thisScript')) 	define('PATH_thisScript',str_replace('//','/', str_replace('\\','/', (PHP_SAPI=='cgi'||PHP_SAPI=='isapi' ||PHP_SAPI=='cgi-fcgi')&&($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED'])? ($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED']):($_SERVER['ORIG_SCRIPT_FILENAME']?$_SERVER['ORIG_SCRIPT_FILENAME']:$_SERVER['SCRIPT_FILENAME']))));
 
diff -ur typo3_440/typo3/sysext/install/mod/class.tx_install_ajax.php typo3_440_os2/typo3/sysext/install/mod/class.tx_install_ajax.php
--- typo3_440/typo3/sysext/install/mod/class.tx_install_ajax.php	2010-06-13 16:42:34.000000000 +0200
+++ typo3_440_os2/typo3/sysext/install/mod/class.tx_install_ajax.php	2010-05-04 13:17:40.000000000 +0200
@@ -40,7 +40,7 @@
 // ***********************
 // Paths are setup
 // ***********************
-define('TYPO3_OS', stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin')?'WIN':'');
+define('TYPO3_OS', (stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin'))||stristr(PHP_OS,'os/2')?'WIN':'');
 define('TYPO3_MODE','FE');
 if (!defined('PATH_thisScript')) 	define('PATH_thisScript',str_replace('//','/', str_replace('\\','/', (PHP_SAPI=='cgi'||PHP_SAPI=='isapi' ||PHP_SAPI=='cgi-fcgi')&&($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED'])? ($_SERVER['ORIG_PATH_TRANSLATED']?$_SERVER['ORIG_PATH_TRANSLATED']:$_SERVER['PATH_TRANSLATED']):($_SERVER['ORIG_SCRIPT_FILENAME']?$_SERVER['ORIG_SCRIPT_FILENAME']:$_SERVER['SCRIPT_FILENAME']))));