[PD] flext external problem

Hi,

I'm trying to get familiar with the flext C++ interface to PD. For that, I ported Millers dspobj~ example to flext. The attached source should create a "mydsp" object with in inlet and one outlet. But I can't load this object, PD complains about a missing symbol "__5mydspf". Does someone know, why this simple external doesn't work?

Thanks,

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