+/* Directories. */
+define('VAR_FILES', $cfg['var_root'] . 'files/');
+define('VAR_LINKS', $cfg['var_root'] . 'links/');
+define('VAR_ASYNC', $cfg['var_root'] . 'async/');
+define('VAR_ALIAS', $cfg['var_root'] . 'alias/');
+
+// helping variable to build absolute link to
+// root of the domain without handling the URL scheme
+$absPrefix = parse_url($cfg['web_root'], PHP_URL_PATH);
+if (true === empty($absPrefix)) {
+ // fallback if installation isnt done yet: relative links to same level on the current page
+ $absPrefix = './';
+}
+define('JIRAFEAU_ABSPREFIX', $absPrefix);
+
+/* Useful constants. */
+if (!defined('NL')) {
+ define('NL', "\n");
+}
+if (!defined('QUOTE')) {
+ define('QUOTE', "'");
+}
+
+define('JIRAFEAU_INFINITY', -1);
+define('JIRAFEAU_MINUTE', 60); // 60
+define('JIRAFEAU_HOUR', 3600); // JIRAFEAU_MINUTE * 60
+define('JIRAFEAU_DAY', 86400); // JIRAFEAU_HOUR * 24
+define('JIRAFEAU_WEEK', 604800); // JIRAFEAU_DAY * 7
+define('JIRAFEAU_MONTH', 2419200); // JIRAFEAU_WEEK * 4
+define('JIRAFEAU_QUARTER', 7257600); // JIRAFEAU_MONTH * 3
+define('JIRAFEAU_YEAR', 29030400); // JIRAFEAU_MONTH * 12
+
+// set UTC as default timezone for all date/time functions
+date_default_timezone_set ('UTC');