TYPO3 Core

Downloaded
wget http://prdownloads.sourceforge.net/typo3/typo3_src-6.0.2.tar.gz
This is the copied link from the download pages Source tar.gz button!

Tried to start, but:

Warning: Unexpected character in input: '\' (ASCII=92) state=1 in typo3_src-6.0.2/typo3/index.php on line 37

The lines in the root index.php are:
:::
require 'typo3/sysext/core/Classes/Core/Bootstrap.php';
\TYPO3\CMS\Core\Core\Bootstrap::getInstance()->baseSetup('');

require(PATH_tslib . 'index_ts.php');
:::
Isnt this a Windows file path??

Same with typo3/install/index.php
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in typo3_src-6.0.2/typo3/install/index.php on line 37
Parse error: syntax error, unexpected T_STRING in typo3_src-6.0.2/typo3/install/index.php on line 37

install/index.php looks like this:
:::
require '../sysext/core/Classes/Core/Bootstrap.php';
\TYPO3\CMS\Core\Core\Bootstrap::getInstance()
->baseSetup('typo3/install/');
:::

Shouldnt typo3 6.0.2 give a little
warning instead: Work from php 5.3 on?