Is this what you were suggesting?

I don't think so - though I'm not entirely sure what installing via cPanel actually does.
I assume it just installs a pre-compiled DBD::mysql for you - and if that's the case you need to file a bug report with whoever is responsible for providing that pre-compiled DBD::mysql.
It is simply not compatible with the perl that you are running.

I suppose another option might be to use a perl that is compatible with that build of DBD::mysql (if such a perl is available to you).

Cheers,
Rob