[fpc-pascal] A linking error when compiling with FPC 2.4.4

[Marco van de Voort]

In our previous episode, Felipe Monteiro de Carvalho said:
> 
> Are you sure? I think it works differently. Lazarus bigide includes
> design-time support only for those datasets without any external
> dependencies.

If the database packages get dependancies to the corresponding c-clientlibs, then
fcl-db will get dependencies on all these C db client libs. Even if you only
use tbufdataset.