Can gfortran compile fftw3?

[Tobias Schlüter]

Steven G. Johnson wrote:
> Also, IIRC gfortran uses the same conventions (for F77 code) as g77, so 
> you should just be able to use a default FFTW (configured for g77) with 
> gfortran code.

I thought passing / returning COMPLEX is handled differently, but I was sure
someone would report a bug if this was truly the case, so maybe it works the
same after all.  Or maybe it's just not important.

- Tobi