Hi there -- I'm afraid I know very little about how to compile anything for iOS, but I should point out a significant problem with what you're trying to do:
Although the Vamp plugin SDK is indeed BSD-style licenced, so that you can write both plugins and hosts under any licence you wish, the QM Vamp Plugins and qm-dsp libraries are not. They are instead under the GPL, meaning you cannot use them in App Store code at all unless you have a separate commercial licence (available from QM).
I'm sorry to bring this disappointing news...
Chris