From: Luigi B. <lui...@gm...> - 2010-09-30 09:23:41
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On Thu, 2010-09-30 at 09:58 +0100, Bojan Nikolic wrote: > > Are there any issues with linking QuantLib to FFTW (perhaps through a > > late-time binding to avoid licensing problems)? > > Since FFTW is released publicly under the GPL I believe it would indeed > create a licensing problem. With GPL I think it does not matter if is > statically or dynamically linked, it still requires the whole of the > program to be licensed under GPL. True, but note that GPL only applies to distribution---what happens on your computer remains on your computer. What that means is that we won't be using FFTW directly in QuantLib code, but if the routine performing the integration is made generic enough that it can take different FFT implementations, you'll be able to instantiate it with FFTW in the code you develop. As long as you don't distribute the resulting program, you'll be ok. Luigi -- There are no rules of architecture for a castle in the clouds. -- Gilbert K. Chesterton |