fftw-sys is used at run time in 30 crates (of which 10 optionally). It is a direct run-time dependency in 3 crates. It's used only as a dev dependency in 1 crate.

Number of dependers fftw-sys version Downloads/month
4 0.8.0 950
8 0.6.0 650
2 0.5.0 77
16 0.4.0 230
1 0.2.0 14
Depender (with downloads and own rev deps) fftw-sys version
1.6K 8 fftw ^0.8.0
260 3 aubio-sys optional ^0.6
230 1 bliss-audio-aubio-sys optional ^0.6
5.1K 2 concrete-fft dev ^0.6