Qt c++ embedded mysql - c++

Question

I've been writing a program on QT 5.0.2 with mingw 4.7 on windows with mysql server 5.7.
I first started with installing the MYQSL driver for QT with this tutorial. It works and I can access the data, but i have to start the server from mysql workbench or it won't make a connection with the database (because it's not running).
For my program I need the server to start up when I run the program. This is the part where i'm stuck. I know I need to use the libmysqld library but I don't seem to get it to work. I didn't find much useful examples so i tried it like this:
this is the .pro file:
QT += core sql
QT += sql
QT -= gui
TARGET = Temp
CONFIG += console
CONFIG -= app_bundle
TEMPLATE = app
SOURCES += main.cpp
INCLUDEPATH += "C:\Program Files (x86)\MySQL\MySQL Server 5.7\include"
INCLUDEPATH += "C:\Program Files (x86)\MySQL\MySQL Server 5.7\lib"
LIBS += -L"C:\Program Files (x86)\MySQL\MySQL Server 5.7\lib" -llibmysqld
this is my main file:
#include <QtSQL>
#include <qsql_mysql.h>
#include <mysql.h>
int main(int argc, char *argv[])
{
QSqlDatabase mydb;
MYSQL *mysql;
static char *server_options[] = \
{ "mysql_test", "--defaults-file=/home/cquiros/temp/mysql/my.cnf", NULL };
int num_elements = (sizeof(server_options) / sizeof(char *)) - 1;
static char *server_groups[] = { "embedded", NULL };
qDebug() << "Loading embedded";
mysql_library_init(num_elements, server_options, server_groups);
mysql = mysql_init(NULL);
mysql_options(mysql, MYSQL_READ_DEFAULT_GROUP, "embedded");
mysql_options(mysql, MYSQL_OPT_USE_EMBEDDED_CONNECTION, NULL);
mysql_real_connect(mysql, NULL,NULL,NULL, "database1", 0,NULL,0);
QMYSQLDriver *drv = new QMYSQLDriver(mysql);
mydb = QSqlDatabase::addDatabase(drv,"connection1"); //Add the database connector to MySQL
mydb.setDatabaseName("test");
if (!mydb.open()) //Try to opens the database
{
qDebug() << "Error while opening the database";
}
}
When i run this, i get this error: "
error: undefined reference to `imp__ZN12QMYSQLDriverC1EP8st_mysqlP7QObject'
collect2.exe:-1: error: error: ld returned 1 exit status
Can anyone help me get on track?