MarsSeed [1] filed a deletion request for mingw-w64-fftw-bin [2]: Please delete. Package is 2 years outdated and unmaintained. This would only be useful for cross-building software for Microsoft Windows x86_64. (For which it is best to set up the complete toolchain locally, rather than use unmaintained PKGBUILDs from AUR.) [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/mingw-w64-fftw-bin/