undefined symbol: zend_extensions ???

[jols]

Upon restarting Apache, I am getting this:

Failed loading /usr/local/Zend/lib/ZendExtensionManager.so: /usr/local/Zend/lib/ZendExtensionManager.so: undefined symbol: zend_extensions

I have installed Zend via /scripts/installzendopt and am running phpv5.1.6 with the newest cPanel release.

Does anyone know what this could be, and how to resolve the issue?

Thanks much for any response.

[jols]

Should have searched first:
Howto: Fixing undefined symbol: zend_extensions