I hope Julia doesn't rely on inferior libraries just out of copyleft phobia. I would much rather use FFTW than FFTPACK or whatever other alternative they have in mind. FFTW is really best in class.
I'm okay with them making FFTW optional, but please make it opt-out, not opt-in. People should be getting the best software by default. Copyleft isn't going to hurt anyone but people who are trying to hide source code, and scientific computing needs all of the visible source code we can get.
I hope Julia doesn't rely on inferior libraries just out of copyleft phobia. I would much rather use FFTW than FFTPACK or whatever other alternative they have in mind. FFTW is really best in class.
I'm okay with them making FFTW optional, but please make it opt-out, not opt-in. People should be getting the best software by default. Copyleft isn't going to hurt anyone but people who are trying to hide source code, and scientific computing needs all of the visible source code we can get.