The source from this directory was copied from the kissfft github repository using the update.sh script. The only changes made were those applied by update.sh and the addition of moz.build and Makefile.in build files for the Mozilla build system. The kissfft git repository is: https://github.com/MoonchildProductions/kissfft The git commit used was fa1bf9189dc84f960d4e56c0bed25d961c0ccb76.