Failed loading ZendGuardLoader

[war40000]

Using php -v we get the following message

Failed loading /usr/local/src/ZendGuardLoader. so: /usr/local/src/ZendGuardLoader. so: undefined symbol: compiler_globals
PHP 5.3.21 (cli) (built: Feb 12 2013 14:45:02)
Copyright (c) 1997-2013 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2013 Zend Technologies

we are working on i686 server. I tried with 32bit ZendGuardLoader

Apache version is 2.4.2

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