cmake CMakeLists.txt; make; sudo make install

PHP:
	Define "extension strus_php.so" in your php.ini. The php.ini path can be evaluated with the PHP phpinfo() command.
	Be careful to edit the right file. Php loads different php.ini files depending on context 
	(webserver or command line)
	Copy the shared object file swig/php/strus.so into the php extension directory (`php-config5 --extension-dir`)
	$ sudo cp swig/php/strus.so `php-config --extension-dir`/
	Copy the script swig/strus.php to /usr/share/php/
	$ sudo cp swig/strus.php /usr/share/php/

	When you make changes to your php.ini do restart the php engine:
	$ sudo service php5-fpm restart

	Possible errors:
	1) Apache:
		If your strus PHP script called by the Apache webserver does not work, check your 
		apache error.log. 
		[Sun Apr 26 13:42:45.209548 2015] [:error] [pid 12992] [client
		127.0.0.1:38873] PHP Fatal error:  Call to undefined function dl() in
		/usr/share/php/strus.php on line 22

		This error means that the externsion strus_php.so configured in your php.ini
		could not be loaded and the php script strus.php tries to load in dynamically
		calling 'dl'. The function 'dl' has been removed from some SAPIs in PHP 5.3. 




