Help with MySQL C++ API

Hello all,

  I am attempting to use the C++ API, however, I receive very interesting 
errors when I compile my project. I do have referenced the mysqlcppapi 
header files (#include mysqlcppap/mysqlcppapi.h), however, the compiler 
(g++) is telling me that the variables are unreferenced (Connection, 
Query, etc) and cannot be found. Any advise on what I should try next?

Note: The install was successful and the examples (simple1.cc, 
complic1.cc, etc) do appear to work. However, when I create database class 
that is a wrapper around the MySQL C++ API, this is where the errors are 
generated (I'm attempting at exposing just a few functions via one class 
instead of sprinkling database connection code throughout my app).

Thanks,
Mark