Use FFTW library for computing Fourier transforms
| Package | “fftw” Flag Description |
|---|---|
| media-plugins/mythplugins | Adds visual effects to MythMusic when playing back music |
| media-tv/mythtv | Support visualizations via sci-libs/fftw |
| sci-chemistry/ball | Build with sci-libs/fftw (switching BALL to GPL3) |