Windows builds broken
The Windows bindist is broken at the moment after e319570e
This commit adds
rtsSleep which calls
nanosleep which is a pthreads function.
This causes the compiler to break bootstrap and not get passed stage1 as a normal Windows setup won't have pthreads on
Those that don't see this breakage have added things to their
PATH they shouldn't have...
The resulting compiler now also makes every single Haskell program depend on
pthreads on Windows, which makes the programs useless unless ran the user puts
pthreads on their