I renamed libfefe to libowfat so you can against it with -lowfat. OK, it's a weak joke, but it's better than libfefe. ;-)
libowfat has grown to include scan, fmt, uint, stralloc, str and open. unix and socket is in the works.
Anyway, the diet libc is now feature complete enough that I can compile and link non-trivial programs like gzip, lzop and bzip2 against it (with large file support). Combined with the new upx beta it is a very powerful tool for low memory situations like rescue floppies.