fix 500 error on missing config.php

include/sanity_check.php

@@ -1,15 +1,15 @@
 <?php
 	require_once "functions.php";
 
-	define('EXPECTED_CONFIG_VERSION', 23);
-	define('SCHEMA_VERSION', 86);
-
 	if (!file_exists("config.php")) {
 		print "<b>Fatal Error</b>: You forgot to copy
 		<b>config.php-dist</b> to <b>config.php</b> and edit it.\n";
 		exit;
 	}
 
+	define('EXPECTED_CONFIG_VERSION', 23);
+	define('SCHEMA_VERSION', 86);
+
 	require_once "config.php";
 	require_once "sanity_config.php";
 

index.php

@@ -1,4 +1,10 @@
 <?php
+	if (!file_exists("config.php")) {
+		print "<b>Fatal Error</b>: You forgot to copy
+		<b>config.php-dist</b> to <b>config.php</b> and edit it.\n";
+		exit;
+	}
+
 	set_include_path(get_include_path() . PATH_SEPARATOR . "include");
 
 	require_once "functions.php";