Sylvain,


>  Incompatible means I cannot combine the two kinds of work.
>  You can use GPL'd code with (compatible) mBSD'd code - the resulting
>  work will be under the GPL, be it in one way or another.
>  But you cannot legally combine GPL'd code with incompatible code

I assume you do not modify the PEAR code and just use it as it comes.
Doing that is legal IMO.

-- 
Regards/MfG,
Christian Weiske