How to make wordpress use www.example.com/blog/wp-includes/ instead of www.example.com/wp-includes/?

Question

I have WordPress at address http://www.example.com/blog/, now I want it to be accessible as http://www.example.com/ without moving wordpress to root directory.

I have made appropriate .htaccess changes.

wp-config.php:

define("WP_HOME", "http://{$_SERVER["HTTP_HOST"]}");
define('WP_CONTENT_DIR', $_SERVER["DOCUMENT_ROOT"] . "/blog/wp-content");
define('WP_CONTENT_URL', "http://{$_SERVER["HTTP_HOST"]}/blog/wp-content");

One thing that doesn't work is WordPress uses www.example.com/wp-includes/ instead of www.example.com/blog/wp-includes/

There are even includes like www.example.com/%post-name%/wp-includes/js/jquery/jquery.js?ver=1.7.2

I have fixed it through .htaccess:

RewriteRule wp-includes/(.*) /blog/wp-includes/$1 [L]

Is threre a better way?

Answer 1

Add to wp-config.php:

define('WP_SITEURL', 'http://example.com/blog/');

On the codex.
This is all you need.