https://www.amd.com/ja/developer/aocl/fftw/eula/fftw-libraries-4-1-eula.html
AMD Optimizing CPU Libraries_FFTW_Libraries EULA 4.1
amdoptimizingcpulibrariesfftw
https://www.mail-archive.com/debian-devel-changes%40lists.debian.org/msg737126.html
Accepted r-cran-fftw 1.0-7-1 (source) into unstable
acceptedcranfftwsourceunstable