sql::Driver*        driver; // Create a pointer to a MySQL driver object
    sql::Connection*    dbConn; // Create a pointer to a database connection object
    sql::Statement*     stmt;   // Create a pointer to a Statement object to hold our SQL commands
    sql::ResultSet*     res;    // Create a pointer to a ResultSet object to hold the results of any queries we run

    driver = get_driver_instance();


and i am linking with

-l mysqlcppconn


error

 In function `disassembled_preparation::query_db()':
disassembled_preparation.cpp:(.text+0x7b3): undefined reference to `sql::mysql::get_driver_instance()'
collect2: error: ld returned 1 exit status
make: *** [exec] Error 1