Since PHP 5.3 is required, there's no need to treat users of 5.1.2-5.2...

Since PHP 5.3 is required, there's no need to treat users of 5.1.2-5.2 specially. Also we can safely use LDAP_OPT_NETWORK_TIMEOUT now.

lib/SimpleSAML/Auth/LDAP.php

@@ -90,11 +90,8 @@ class SimpleSAML_Auth_LDAP {
 		// (OpenLDAP 2.x.x or Netscape Directory SDK x.x needed).
 		$this->timeout = $timeout;
 		if ($timeout > 0) {
-			if (defined('LDAP_OPT_NETWORK_TIMEOUT')) {
-				/* This option isn't present before PHP 5.3. */
-				if (!@ldap_set_option($this->ldap, constant('LDAP_OPT_NETWORK_TIMEOUT'), $timeout))
-					SimpleSAML_Logger::warning('Library - LDAP __construct(): Unable to set timeouts (LDAP_OPT_NETWORK_TIMEOUT) to ' . $timeout);
-			}
+			if (!@ldap_set_option($this->ldap, LDAP_OPT_NETWORK_TIMEOUT, $timeout))
+				SimpleSAML_Logger::warning('Library - LDAP __construct(): Unable to set timeouts (LDAP_OPT_NETWORK_TIMEOUT) to ' . $timeout);
 			if (!@ldap_set_option($this->ldap, LDAP_OPT_TIMELIMIT, $timeout))
 				SimpleSAML_Logger::warning('Library - LDAP __construct(): Unable to set timeouts (LDAP_OPT_TIMELIMIT) to ' . $timeout);
 		}

modules/core/hooks/hook_sanitycheck.php

@@ -25,8 +25,6 @@ function core_hook_sanitycheck(&$hookinfo) {
 	
 	if (version_compare(phpversion(), '5.3', '>=')) {
 		$hookinfo['info'][] = '[core] You are running PHP version ' . phpversion() . '. Great.';
-	} elseif( version_compare(phpversion(), '5.1.2', '>=')) {
-		$hookinfo['info'][] = '[core] You are running PHP version ' . phpversion() . '. It\'s recommended to upgrade to >= 5.2';
 	} else {
 		$hookinfo['errors'][] = '[core] You are running PHP version ' . phpversion() . '. SimpleSAMLphp requires version >= 5.3. Please upgrade!';
 	}