I've found a problem with the gnulib fts module. When using the mingw cross compiler, the fts_read routine never finds any files or directories other than the directories supplied to the preceeding fts_open call. It seems that this will happen on any platform that doesn't have a working dirfd function available.
I've traced the problem down to the dirfd call around line 1160 in fts.c, in the internal fts_build routine, after the comment block containing the admonition that "This is all fairly nasty." After getting a valid DIR *dirp, the line "int dir_fd = dirfd(dirp);" gets a dir_fd value of -1, but with an errno value of 0. This happens because the dirfd.m4 macro recognizes that there's no way to get the file descriptor associated with an open DIR* on this platform, and so #defines the return value of dirfd to always be -1. This in turn results in dirp being set to NULL, which prevents the following readdir loop from being run to generate the list of files in the directory. -- John Kodis.
