Add an additional = to fix the syntax.

core/databases/app_defaults.php

@@ -126,7 +126,7 @@ if ($domains_processed == 1) {
 			$tmp .= "	database[\"path\"] = \"".$db_path."\";\n";
 
 			if ($db_type == "pgsql") {
-				if ($db_host = "localhost") { $db_host = "127.0.0.1"; }
+				if ($db_host == "localhost") { $db_host = "127.0.0.1"; }
 				$tmp .= "	database[\"system\"] = \"pgsql://hostaddr=".$db_host." port=".$db_port." dbname=".$db_name." user=".$db_username." password=".$db_password." options='-c client_min_messages=NOTICE' application_name='".$db_name."'\";\n";
 				$tmp .= "	database[\"switch\"] = \"pgsql://hostaddr=".$db_host." port=".$db_port." dbname=freeswitch user=".$db_username." password=".$db_password." options='-c client_min_messages=NOTICE' application_name='freeswitch'\";\n";
 			}