The file include/dirent.h was taken at 29.12.2015 from https://github.com/tronkko/dirent Its licened under MIT license. See the LICENSE file for details. There are some reasons why foreign code is included here: * To avoid build steps like "Copy file x from http:// and place it in direcory y ..." and so on. * Nobody can give a guaranty that the source from the Internet are still aviable in some years. Even github repos can be deleted.