[boost] [random] random_device only available on which platforms?

Jens, I'm trying to figure out what to do about this test failure here: http://tinyurl.com/rs8me the test doesn't actually use random_device, but does include the header via the TR1 version of <random>, however as you can see the linker complains about an unresolved external boost::random_device::default_token. Am I correct in thinking that this class is only actually usable on Linux? Thanks, John.