QSslSocket - problem with connecting to the server

[kremuwa]

I've written such piece of code:

sock.connectToHostEncrypted(host,port);
        if(!sock.waitForEncrypted(TIMEOUT))
        {
            report(sock.errorString());
            return false;
        }

sock.connectToHostEncrypted(host,port);
        if(!sock.waitForEncrypted(TIMEOUT))
        {
            report(sock.errorString());
            return false;
        }

To copy to clipboard, switch view to plain text mode 

And when this part of the program is executed, I'm receiving such debug messages;

QSslSocket: cannot call unresolved function SSLv3_client_method
QSslSocket: cannot call unresolved function SSL_CTX_new
QSslSocket: cannot call unresolved function SSL_library_init
QSslSocket: cannot call unresolved function ERR_get_error
QSslSocket: cannot call unresolved function ERR_error_string

What's wrong? Is the program missing any DDL files? Does it have something to do with OpenSSL?