realname "File Tree Walking Entropy Source"

define ENTROPY_SRC_FTW

<add>
es_ftw.h
es_ftw.cpp
</add>

<os>
aix
cygwin
darwin
freebsd
hpux
irix
linux
openbsd
qnx
solaris
tru64

# Doesn't build on 2.0.2/x86 due to libc/libstdc++ header issues; no
# big deal since it has /dev/*random
#netbsd
</os>